2,301 results match your criteria Physiologia plantarum[Journal]


Comprehensive dynamic transcriptome analysis at two seed germination stages in maize (Zea mays L.).

Physiol Plant 2019 Feb 14. Epub 2019 Feb 14.

College of Agronomy, Synergetic Innovation Centre of Henan Grain Crops and National Key Laboratory of Wheat and Maize Crop Science, Henan Agricultural University, Zhengzhou, 450002, China.

Seed germination, as an integral stage of crop production, directly affects Zea mays (maize) yield and grain quality. However, the molecular mechanisms of seed germination remain unclear in maize. We performed comparative transcriptome analysis of two maize inbred lines, Yu82 and Yu537A, at two stages of seed germination. Read More

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http://doi.wiley.com/10.1111/ppl.12944
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http://dx.doi.org/10.1111/ppl.12944DOI Listing
February 2019
2 Reads

Berry transcriptome: Insights into a novel resource to understand development dependent secondary metabolism in Withania Somnifera (Ashwagandha).

Physiol Plant 2019 Feb 15. Epub 2019 Feb 15.

Department of Metabolic and Structural Biology, CSIR-Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow, 226015, India.

Withania somnifera (Ashwagandha) is considered as Rasayana in Indian systems of medicine. This study reports a novel transcriptome of W. somnifera berries, with high depth, quality and coverage. Read More

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http://dx.doi.org/10.1111/ppl.12943DOI Listing
February 2019
1 Read

Sucrose and starch metabolism during Fargesia yunnanensis shoot growth.

Physiol Plant 2019 Feb 11. Epub 2019 Feb 11.

Key Laboratory of Forest Biotechnology in Yunnan, Southwest Forestry University, Kunming, Yunnan, 650224, P.R. China.

Bamboo is one of the fastest growing plants in the world, but their shoot buds develop very slowly. Information about the sugar storage and metabolism during the shoot growth is lacking. In the present study, we determined the activity of sucrose and starch metabolizing enzymes during the developmental period of Fargesia yunnanensis from shoot buds to the young culms that have achieved their full height. Read More

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http://dx.doi.org/10.1111/ppl.12934DOI Listing
February 2019

Tissue-specific organic acid metabolism in reproductive and non-reproductive parts of the fig fruit is partially induced by pollination.

Physiol Plant 2019 Feb 10. Epub 2019 Feb 10.

Institute of Plant Sciences, Agricultural Research Organization, P.O. Box 6, Bet-Dagan, 50250, Israel.

Organic acids are important components of overall fruit quality through flavor, taste, nutritional and medicinal values. Pollinated fig (Ficus carica L.) fruit quality is enhanced by increased acidity. Read More

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http://dx.doi.org/10.1111/ppl.12941DOI Listing
February 2019

Comparative analysis of plastocyanin-cytochrome f complex formation in higher plants, green algae and cyanobacteria.

Physiol Plant 2019 Feb 10. Epub 2019 Feb 10.

Biology Faculty, Lomonosov Moscow State University, 1-24 Leninskie Gory, Moscow, 119992, Russia.

Mechanisms of the complex formation between plastocyanin and cytochrome f in higher plants (Spinacia oleracea and Brassica rapa), green microalgae Chlamydomonas reinhardtii and two species of cyanobacteria (Phormidium laminosum and Nostoc sp.) were investigated using combined Brownian and molecular dynamics simulations and hierarchical cluster analysis. In higher plants and green algae electrostatic interactions force plastocyanin molecule close to the heme of cytochrome f. Read More

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http://dx.doi.org/10.1111/ppl.12940DOI Listing
February 2019

Ecophysiolomic analysis of stress tolerant Himalayan shrub Hipppophae rhamnoides shows multifactorial acclimation strategies induced by diverse environmental conditions.

Physiol Plant 2019 Feb 9. Epub 2019 Feb 9.

Molecular Physiology and Proteomics Laboratory, Department of Botany, University of Delhi, Delhi, 110007, India.

Climatic fluctuations are a major global concern, affecting the agronomic productivity of plants. Hippophae rhamnoides (H. rhamnoides) a naturally growing stress tolerant Himalayan shrub was chosen to understand its stress hardiness mechanism. Read More

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http://dx.doi.org/10.1111/ppl.12942DOI Listing
February 2019
1 Read

The regulation of P700 is an important photoprotective mechanism to NaCl-salinity in Jatropha curcas.

Physiol Plant 2019 Feb 8. Epub 2019 Feb 8.

Bioscience Institute, São Paulo State University (UNESP), São Vicente, 11330-900, Brazil.

Salinity commonly affects photosynthesis and crop production worldwide. Salt stress disrupts the fine balance between photosynthetic electron transport and the Calvin cycle reactions, leading to over-reduction and excess energy within the thylakoids. The excess energy triggers reactive oxygen species (ROS) overproduction that causes photoinhibition in both photosystems (PS) I and II. Read More

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http://dx.doi.org/10.1111/ppl.12908DOI Listing
February 2019
1 Read

Expression of maize Calcium-Dependent Protein Kinase (ZmCPK11) improves salt tolerance in transgenic Arabidopsis plants by regulating sodium and potassium homeostasis and stabilizing photosystem II.

Physiol Plant 2019 Feb 4. Epub 2019 Feb 4.

Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.

In plants, CALCIUM-DEPENDENT PROTEIN KINASES (CDPKs/CPKs) are involved in calcium signaling in response to endogenous and environmental stimuli. Here, we report that ZmCPK11, one of maize CDPKs, participates in salt stress response and tolerance. Salt stress induced expression and upregulated the activity of ZmCPK11 in maize roots and leaves. Read More

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http://dx.doi.org/10.1111/ppl.12938DOI Listing
February 2019
2 Reads

Artificial Photosynthesis with Metal and Covalent Organic Frameworks (MOFs and COFs): Challenges and Prospects in Fuel-Forming Electrocatalysis.

Physiol Plant 2019 Jan 31. Epub 2019 Jan 31.

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, United Kingdom.

Mimicking photosynthesis in generating chemical fuels from sunlight is a promising strategy to alleviate society's demand for fossil fuels. However, this approach involves a number of challenges that must be overcome before this concept can emerge as a viable solution to society's energy demand. Particularly in artificial photosynthesis, the catalytic chemistry that converts energy in the form of electricity into carbon-based fuels and chemicals has yet to be developed. Read More

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http://dx.doi.org/10.1111/ppl.12935DOI Listing
January 2019
1 Read

CRISPR/Cas in Arabidopsis: overcoming challenges to accelerate improvements in crop photosynthetic efficiencies.

Physiol Plant 2019 Jan 31. Epub 2019 Jan 31.

SynthSys and Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK.

The rapid and widespread adoption of CRISPR/Cas technologies has allowed genetic editing in plants to enter a revolutionary new era. In this mini-review we highlight the current CRISPR/Cas tools available in plants and the use of Arabidopsis thaliana as a model to guide future improvements in crop yields, such as enhancing photosynthetic potential. We also outline the current socio-political landscape for CRISPR/Cas research and highlight the growing need for governments to better facilitate research into plant genetic editing technologies. Read More

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http://dx.doi.org/10.1111/ppl.12937DOI Listing
January 2019

Antioxidant and signaling functions of the plastoquinone pool in higher plants.

Physiol Plant 2019 Jan 31. Epub 2019 Jan 31.

Institute of Basic Biological Problems of the Russian Academy of Sciences Federal Research Center, Pushchino Scientific Center for Biological Research of the Russian Academy of Science, Institutskaya st., 2, Pushchino town, Russia.

The review covers data representing the plastoquinone pool as the component integrated in plant antioxidant defence and plant signaling. The main goal of the review is to discuss the evidence describing the plastoquinone-involved biochemical reactions, which are incorporated in maintaining the sustainability of higher plants to stress conditions. In this context, the analysis of the reactions of various redox forms of plastoquinone with oxygen species is presented. Read More

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http://dx.doi.org/10.1111/ppl.12936DOI Listing
January 2019

Overexpressing broccoli tryptophan biosynthetic genes BoTSB1 and BoTSB2 promotes biosynthesis of IAA and indole glucosinolates.

Physiol Plant 2019 Jan 31. Epub 2019 Jan 31.

College of Life Sciences, Northeast Agricultural University, Harbin, China.

Tryptophan is one of the amino acids that cannot be produced in humans and has to be acquired primarily from plants. In Arabidopsis thaliana (Arabidopsis), the tryptophan synthase beta subunit (TSB) genes have been found to catalyze the biosynthesis of tryptophan. Here, we report the isolation and characterization of two TSB genes from Brassica oleracea (broccoli), designated BoTSB1 and BoTSB2. Read More

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http://dx.doi.org/10.1111/ppl.12933DOI Listing
January 2019
1 Read

Comparative excitation-emission dependence of the F /F ratio in model green algae and cyanobacterial strains.

Physiol Plant 2019 Jan 28. Epub 2019 Jan 28.

Istituto di Biologia e Biotecnologia Agraria, Consiglio Nazionale delle Ricerche, Via Bassini 15A, 20133, Milano, Italy.

The emission spectra collected under conditions of open (F ) and closed (F ) photosystem II (PSII) reaction centres are close-to-independent from the excitation wavelength in Chlamydomonas reinhardtii and Chlorella sorokiniana, whereas a pronounced dependence is observed in Synechocystis sp. PCC6803 and Synechococcus PCC7942, instead. The differences in band-shape between the F and F emission are limited in green algae, giving rise only to a minor trough in the F /F spectrum in the 705-720 nm range, irrespectively of the excitation. Read More

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http://dx.doi.org/10.1111/ppl.12931DOI Listing
January 2019

'Birth defects' of photosystem II make it highly susceptible to photodamage during chloroplast biogenesis.

Physiol Plant 2019 Jan 28. Epub 2019 Jan 28.

Department of Chemistry, Chemical Biological Centre, Umeå University, S-90187, Umeå, Sweden.

High solar flux is known to diminish photosynthetic growth rates, reducing biomass productivity and lowering disease tolerance. Photosystem II (PSII) of plants is susceptible to photodamage (also known as photoinactivation) in strong light, resulting in severe loss of water oxidation capacity and destruction of the water-oxidizing complex (WOC). The repair of damaged PSIIs comes at a high energy cost and requires de novo biosynthesis of damaged PSII subunits, reassembly of the WOC inorganic cofactors and membrane remodelling. Read More

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http://dx.doi.org/10.1111/ppl.12932DOI Listing
January 2019

Leaf photosynthetic capacity is regulated by the interaction of nitrogen and potassium through coordination of CO diffusion and carboxylation.

Physiol Plant 2019 Jan 28. Epub 2019 Jan 28.

College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.

Combined application of nitrogen (N) and potassium (K) fertilizer could significantly enhance crop yield. Crop yield and photosynthesis are inseparable. However, the influence of N and K interaction on photosynthesis is still not fully understood. Read More

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http://dx.doi.org/10.1111/ppl.12919DOI Listing
January 2019

Bananas tackling drought and heat - with DREBs and more.

Authors:
Anirban Baral

Physiol Plant 2019 Feb;165(2):128-130

Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, 901 83 Umeå, Sweden.

With the changing climate, crops are facing mounting threats from multiple abiotic stresses, and studies that assess the response of plants to combinations, rather than to individual, abiotic stresses are becoming increasingly relevant. Bananas are one of the most globally important and popular food crops and their production is threatened by increasing heat and diminishing rainfall in tropical and subtropical regions. In pursuit of effective stress management strategies, Jangale et al. Read More

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http://dx.doi.org/10.1111/ppl.12905DOI Listing
February 2019
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Sobering challenges faced by the brewing industry in a warming world.

Authors:
Simon R Law

Physiol Plant 2019 Feb;165(2):131-133

Department of Plant Physiology, Umeå University, 907 36 Umeå, Sweden.

Barley (Hordeum vulgare), a vital crop to the food and beverage industry, is highly vulnerable to unstable conditions on the climatic horizon. An article in this special issue of Physiologia Plantarum by Mahalingam and Bregitzer (2019) describes the impact that individual and combined stresses linked to climate change could have on the agronomic source of one of our favourite libations, as well as offering achievable solutions that will be needed if crop yield and quality are to be maintained. Read More

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http://dx.doi.org/10.1111/ppl.12906DOI Listing
February 2019
1 Read

Editorial.

Physiol Plant 2019 02;165(2):125-127

Division of Plant Sciences, Interdisciplinary Plant Group, College of Agriculture, Food and Natural Resources, and The Department of Surgery, University of Missouri School of Medicine. Christopher S. Bond Life Sciences Center University of Missouri, Columbia, MO 65201, USA.

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http://dx.doi.org/10.1111/ppl.12884DOI Listing
February 2019
1 Read

Comparative Physiological and Biochemical Evaluation of Salt and Nickel Tolerance Mechanisms in Two Contrasting Tomato Genotypes.

Physiol Plant 2019 Jan 26. Epub 2019 Jan 26.

Quinoa Quality, Regstrup, Denmark.

Plant tolerance against a combination of abiotic stresses is a complex phenomenon, which involves various mechanisms. Physiological and biochemical analyses of salinity (NaCl) and nickel (Ni) tolerance in two contrasting tomato genotypes were performed in a hydroponics experiment. The tomato genotypes selected were proved to be tolerant (Naqeeb) and sensitive (Nadir) to both salinity and Ni stress in our previous experiment. Read More

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http://dx.doi.org/10.1111/ppl.12930DOI Listing
January 2019
2 Reads
3.138 Impact Factor

Isolation and characterization of CAC antenna proteins and Photosystem I supercomplex from the cryptophytic alga Rhodomonas salina.

Physiol Plant 2019 Jan 24. Epub 2019 Jan 24.

Institute of Microbiology, Academy of Sciences of the Czech Republic, Opatovický mlýn, 379 81 Třeboň, Czech Republic.

In the present paper, we report an improved method combining sucrose density gradient with ion exchange chromatography for the isolation of pure chlorophyll a/c antenna proteins from the model cryptophytic alga R. salina. Antennas were used for in vitro quenching experiments in the absence of xanthophylls, showing that protein aggregation is a plausible mechanism behind nonphotochemical quenching in R. Read More

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http://dx.doi.org/10.1111/ppl.12928DOI Listing
January 2019
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Lipid-polymorphism of plant thylakoid membranes. Enhanced non-bilayer lipid phases associated with increased membrane permeability.

Physiol Plant 2019 Jan 22. Epub 2019 Jan 22.

Institute of Plant Biology, Biological Research Center, Hungarian Academy of Sciences, Temesvári körút 62, H-6726, Szeged, Hungary.

Earlier experiments, using P-NMR and time-resolved merocyanine fluorescence spectroscopy, have shown that isolated intact, fully functional plant thylakoid membranes, in addition to the bilayer phase, contain three non-bilayer (or non-lamellar) lipid phases (Garab et al. 2017 Scientific Reports 7: 13343). It has also been shown that the lipid polymorphism of thylakoid membranes can be characterized by remarkable plasticity, i. Read More

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http://doi.wiley.com/10.1111/ppl.12929
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http://dx.doi.org/10.1111/ppl.12929DOI Listing
January 2019
7 Reads

Response of proteome and morphological structure to short-term drought and subsequent recovery in Cucumis sativus leaves.

Physiol Plant 2019 Jan 20. Epub 2019 Jan 20.

The Key Laboratory for Quality Improvement of Agricultural Products of Zhejiang Province, School of Agriculture and Food Science, Zhejiang Agriculture & Forestry University, Hangzhou, 311300, China.

Drought is the primary limitation to plant growth and yield in agricultural systems. Cucumber (Cucumis sativus) is one of the most important vegetables worldwide and has little tolerance for water deficit. To understand the drought stress response strategy of this plant, the responses of cucumber to short-term drought and rewatering were determined in this study by morphological structure and proteomic analyses. Read More

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http://dx.doi.org/10.1111/ppl.12926DOI Listing
January 2019
2 Reads

Topology of TROL protein in thylakoid membranes of Arabidopsis thaliana.

Physiol Plant 2019 Jan 20. Epub 2019 Jan 20.

Laboratory for Molecular Plant Biology and Biotechnology, Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia.

TROL (thylakoid rhodanase-like protein) is a nuclear-encoded protein of thylakoid membranes required for tethering of FNR (ferredoxin:NADPH oxydoreductase). It has been proposed that the dynamic interaction of TROL with flavoenzyme FNR, influenced by environmental light conditions, regulates the fate of photosynthetic electrons, directing them either to NADPH synthesis or to other acceptors, including ROS detoxification pathways. Inside the chloroplasts, TROL has a dual localization: as inner membrane precursor form and a thylakoid membrane mature form, which has been confirmed by several large-scale chloroplast proteomics studies, as well as protein import experiments. Read More

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http://dx.doi.org/10.1111/ppl.12927DOI Listing
January 2019
1 Read

The effects of intervessel pit characteristics on xylem hydraulic efficiency and photosynthesis in hemiepiphytic and non-hemiepiphytic Ficus species.

Physiol Plant 2019 Jan 14. Epub 2019 Jan 14.

Plant Ecophysiology and Evolution Group, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi Key Laboratory of Forest Ecology and Conservation, College of Forestry, Guangxi University, Nanning, Guangxi, 530004, China.

Xylem vulnerability to cavitation and hydraulic efficiency are directly linked to fine-scale bordered pit features in water-conducting cells of vascular plants. However, it is unclear how pit characteristics influence water transport and carbon economy in tropical species. The primary aim of this study was to evaluate functional implications of changes in pit characteristics for water relations and photosynthetic traits in tropical Ficus species with different growth forms (i. Read More

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http://dx.doi.org/10.1111/ppl.12923DOI Listing
January 2019
1 Read
3.138 Impact Factor

Growth and physiological responses to successional water deficit and recovery in four warm-temperate woody species.

Physiol Plant 2019 Jan 14. Epub 2019 Jan 14.

Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, 72 Binhai Road, Qingdao, 266237, China.

Plant responses to drought and their subsequent rehydration can provide evidence for forest dynamics within the context of climate change. In this study, the seedlings of two native species (Vitex negundo var. heterophylla, Quercus acutissima) and two exotic species (Robinia pseudoacacia, Amorpha fruticosa) in China were selected in a greenhouse experiment. Read More

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http://dx.doi.org/10.1111/ppl.12922DOI Listing
January 2019
2 Reads

Genome wide identification of the trihelix transcription factors and overexpression of Gh_A05G2067 (GT-2), a novel gene contributing to increased drought and salt stresses tolerance in cotton.

Physiol Plant 2019 Jan 10. Epub 2019 Jan 10.

Institute of Cotton Research, Chinese Academy of Agricultural Science (ICR, CAAS)/State Key Laboratory of Cotton Biology, Anyang 455000, China.

We identified 102, 51 and 51 proteins encoded by the trihelix genes in Gossypium hirsutum, Gossypium arboreum and Gossypium raimondii, respectively. RNA sequence data and real-time quantitative polymerase chain reaction analysis showed that Gh_A05G2067 (GT-2) was highly upregulated under drought and salt stress conditions. Transient expression of GT-2-green fluorescent protein fusion protein in protoplast showed that GT-2 was localized in the nucleus. Read More

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http://doi.wiley.com/10.1111/ppl.12920
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http://dx.doi.org/10.1111/ppl.12920DOI Listing
January 2019
10 Reads
3.138 Impact Factor

Cold- and menthol-evoked membrane potential changes in the moss Physcomitrella patens: influence of ion channel inhibitors and phytohormones.

Physiol Plant 2019 Jan 10. Epub 2019 Jan 10.

Department of Biophysics, Institute of Biology and Biochemistry, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland.

Microelectrode measurements carried out on leaf cells from Physcomitrella patens revealed that a sudden temperature drop and application of menthol evoked two types of different-shaped membrane potential changes. Cold stimulation evoked spike-type responses. Menthol depolarized the cell membrane with different rates. Read More

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http://dx.doi.org/10.1111/ppl.12918DOI Listing
January 2019
1 Read

The impact of photosynthesis on initiation of leaf senescence.

Physiol Plant 2019 Jan 10. Epub 2019 Jan 10.

Institute for Integrative Biology of the Cell (I2BC), Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA) Saclay, Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud, Université Paris-Saclay, F-91198, Gif-sur-Yvette, France.

Senescence is the last stage of leaf development preceding the death of the organ, and it is important for nutrient remobilization and for feeding sink tissues. There are many reports on leaf senescence, but the mechanisms initiating leaf senescence are still poorly understood. Leaf senescence is affected by many environmental factors and seems to vary in different species and even varieties of plants, which makes it difficult to generalize the mechanism. Read More

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http://dx.doi.org/10.1111/ppl.12921DOI Listing
January 2019
1 Read

Picolinic acid spray stimulates the antioxidative metabolism and minimizes impairments on photosynthesis on wheat leaves infected by Pyricularia oryzae.

Physiol Plant 2019 Jan 9. Epub 2019 Jan 9.

Universidade Federal de Viçosa (UFV), Department of Plant Pathology, Laboratory of Host-Pathogen Interaction, Viçosa, Minas Gerais State, 36570-900, Brazil.

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http://dx.doi.org/10.1111/ppl.12917DOI Listing
January 2019
1 Read

The afterglow thermoluminescence band as an indicator of changes in the photorespiratory metabolism of the model legume Lotus japonicus.

Physiol Plant 2019 Jan 9. Epub 2019 Jan 9.

Departamento de Bioquímica Vegetal y Biología Molecular, Universidad de Sevilla, Sevilla, Spain.

The afterglow (AG) luminescence is a delayed chlorophyll fluorescence emitted by the photosystem II that seems to reflect the level of assimilatory potential (NADPH+ATP) in chloroplast. In this work, the thermoluminescence (TL) emissions corresponding to the AG band were investigated in plants of the WT and the Ljgln2-2 photorespiratory mutant from Lotus japonicus grown under either photorespiratory (air) or non-photorespiratory (high concentration of CO ) conditions. TL glow curves obtained after two flashes induced the strongest overall TL emissions, which could be decomposed in two components: B band (t  = 27-29°C) and AG band (t  = 44-45°C). Read More

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http://dx.doi.org/10.1111/ppl.12916DOI Listing
January 2019
3 Reads

The potential of quantitative models to improve microalgae photosynthetic efficiency.

Physiol Plant 2018 Dec 22. Epub 2018 Dec 22.

Department of Biology, University of Padova, Via Ugo Bassi 58/B 35131, Padova, Italy.

The massive increase in carbon dioxide concentration in the atmosphere driven by human activities is causing huge negative consequences and new sustainable sources of energy, food and materials are highly needed. Algae are unicellular photosynthetic microorganisms that can provide a highly strategic contribution to this challenge as alternative source of biomass to complement crops cultivation. Algae industrial cultures are commonly limited by light availability, and biomass accumulation is strongly dependent on their photon-to-biomass conversion efficiency. Read More

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http://dx.doi.org/10.1111/ppl.12915DOI Listing
December 2018
1 Read

Multilevel regulation of non-photochemical quenching and state transitions by chloroplast NADPH-dependent thioredoxin reductase.

Physiol Plant 2018 Dec 22. Epub 2018 Dec 22.

Molecular Plant Biology, Department of Biochemistry, University of Turku, Turku, Finland.

In natural growth habitats, plants face constant, unpredictable changes in light conditions. To avoid damage to the photosynthetic apparatus on thylakoid membranes in chloroplasts, and to avoid wasteful reactions, it is crucial to maintain a redox balance both within the components of photosynthetic electron transfer chain and between the light reactions and stromal carbon metabolism under fluctuating light conditions. This requires coordinated function of the photoprotective and regulatory mechanisms, such as non-photochemical quenching (NPQ) and reversible redistribution of excitation energy between photosystem II (PSII) and photosystem I (PSI). Read More

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http://doi.wiley.com/10.1111/ppl.12914
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http://dx.doi.org/10.1111/ppl.12914DOI Listing
December 2018
13 Reads

Transcriptome profiles of tomato plants after neutron irradiation and infection with TYLCV.

Physiol Plant 2019 Feb;165(2):427-441

Department of Physics, Sungkyunkwan University, Suwon 16419, Republic of Korea.

Ionizing radiation is ubiquitous in the environment and can cause mutagenesis in living organisms. In this study, we examined the effects of neutron irradiation on tomato plants. Neutron irradiation decreased tomato germination rates, but most irradiated tomato plants did not show any significant phenotype. Read More

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http://doi.wiley.com/10.1111/ppl.12913
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http://dx.doi.org/10.1111/ppl.12913DOI Listing
February 2019
14 Reads

Parasitic worms hijack key plant protein to build their nest.

Authors:
Anirban Baral

Physiol Plant 2019 Jan;165(1):2-3

Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Science, 901 83, Umeå, Sweden.

Parasitic nematode worms infect a variety of crop plants worldwide. Roots infected by these worms start to look rather unsavory - with knot like tumors (galls) developing all over them. At the core of each gall, a worm matures and lays its eggs. Read More

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http://doi.wiley.com/10.1111/ppl.12877
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http://dx.doi.org/10.1111/ppl.12877DOI Listing
January 2019
6 Reads

Ultrastructural patterns of photoacclimation and photodamage to photosynthetic algae cell under environmental stress.

Physiol Plant 2018 Dec 18. Epub 2018 Dec 18.

Department of Bioengineering, Faculty of Biology, Moscow State University, Moscow, 119234, Russia.

In oxygenic phototrophs including unicellular algae, acclimation to and damage by diverse environmental stresses induce profound changes in the ultrastructural organization of the cell. These alterations reflect acclimation of the photosynthetic apparatus to unfavorable conditions (mainly reduction of the chloroplast and its membranal system) and rewiring of the photo-fixed carbon fluxes in the cell. These changes, eventually pursuing mitigation of the photooxidative damage risk, are manifested by the formation of diverse carbon-rich inclusions. Read More

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http://doi.wiley.com/10.1111/ppl.12912
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http://dx.doi.org/10.1111/ppl.12912DOI Listing
December 2018
4 Reads

Improved in vivo measurement of alternative oxidase respiration in field-collected pine roots.

Physiol Plant 2018 Dec 18. Epub 2018 Dec 18.

Swedish University of Agricultural Sciences, Department of Forest Ecology and Management, SE-901 83, Umeå, Sweden.

Cellular respiration via the alternative oxidase pathway (AOP) leads to a considerable loss in efficiency. Compared to the cytochrome pathway (COP), AOP produces 0-50% as much ATP per carbon (C) respired. Relative partitioning between the pathways can be measured in vivo based on their differing isotopic discriminations against O in O . Read More

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http://doi.wiley.com/10.1111/ppl.12910
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http://dx.doi.org/10.1111/ppl.12910DOI Listing
December 2018
6 Reads

Variability of leaf photosynthetic characteristics in rice and its relationship with resistance to water stress under different nitrogen nutrition regimes.

Physiol Plant 2018 Dec 18. Epub 2018 Dec 18.

State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, China.

The negative effects of water stress on rice can be alleviated by NH nutrition. However, the effects of mixed nitrogen (N) nutrition (NO +NH ) on resistance to water stress are still not well known. To investigate the response of rice growth to water stress and its relationship with photosynthetic characteristics, a hydroponic experiment supplying different N forms was conducted. Read More

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http://dx.doi.org/10.1111/ppl.12909DOI Listing
December 2018
1 Read

Comprehensive metabolomic, proteomic and physiological analyses of grain yield reduction in rice under abrupt drought-flood alternation stress.

Physiol Plant 2018 Dec 18. Epub 2018 Dec 18.

Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, College of Agronomy, Jiangxi Agricultural University, Jiangxi 330045, China.

Abrupt drought-flood alternation (T1) is a meteorological disaster that frequently occurs during summer in southern China and the Yangtze river basin, often causing a significant loss of rice production. In this study, the response mechanism of yield decline under abrupt drought-flood alternation stress at the panicle differentiation stage was analyzed by looking at the metabolome, proteome as well as yield and physiological and biochemical indexes. The results showed that drought and flood stress caused a decrease in the yield of rice at the panicle differentiation stage, and abrupt drought-flood alternation stress created a synergistic effect for the reduction of yield. Read More

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http://dx.doi.org/10.1111/ppl.12901DOI Listing
December 2018
2 Reads

Impacts of warming and water deficit on antioxidant responses in Panicum maximum Jacq.

Physiol Plant 2019 Feb;165(2):413-426

Universidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias (FCAV), Departamento de Biologia Aplicada à Agropecuária, Jaboticabal, SP, Brazil.

Agricultural activities are affected by many biotic and abiotic stresses associated with global climate change. Predicting the response of plants to abiotic stress under future climate scenarios requires an understanding of plant biochemical performance in simulated stress conditions. In this study, the antioxidant response of Panicum maximum Jacq. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12907
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http://dx.doi.org/10.1111/ppl.12907DOI Listing
February 2019
10 Reads

Illumina-based transcriptomic analysis on recalcitrant seeds of Panax notoginseng for the dormancy release during the after-ripening process.

Physiol Plant 2018 Dec 12. Epub 2018 Dec 12.

College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, Yunnan, 650201, China.

Panax notoginseng (Burk) F.H. Chen is an economically and medicinally plant of the family Araliacease, seed dormancy is a key factor limiting the extended cultivation of P. Read More

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http://dx.doi.org/10.1111/ppl.12904DOI Listing
December 2018
1 Read
3.138 Impact Factor

Overexpression of transketolase gene promotes chilling tolerance by increasing the activities of photosynthetic enzymes, alleviating oxidative damage and stabilizing cell structure in Cucumis sativus L.

Physiol Plant 2018 Dec 12. Epub 2018 Dec 12.

StateKey Laboratory of Crop Biology/Key Laboratory of Crop Biology and Genetic Improvement of Horticultural Crops in Huanghuai Region/College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, Shandong, 271018, China.

Despite being a key enzyme of Cavin cycle, transketolase (TK) is believed to be related to abiotic resistance in higher plants. However, how TK affects chilling tolerance still remains largely unknown. Here, we describe the effect of overexpression of the Cucumis sativa TK gene (CsTK) on growth, photosynthesis, ROS metabolism and cell ultrastructure under chilling stress. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12903
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http://dx.doi.org/10.1111/ppl.12903DOI Listing
December 2018
13 Reads

Potential role of root membrane phosphatidic acid in superior agronomic performance of silage-corn cultivated in cool climate cropping systems.

Physiol Plant 2018 Dec 11. Epub 2018 Dec 11.

School of Science and the Environment, Grenfell Campus, Memorial University of Newfoundland, Corner Brook, A2H 5G4, Canada.

The literature is replete with information describing the composition of the root lipidome in several plant species grown under various environmental conditions. However, it is unknown to what extent the root membrane lipidome vary between silage-corn genotypes, and how such variation could influence agronomic performances during field cultivation in cool climate. To address this issue, the root membrane lipidome and agronomic performance were assessed for five silage-corn genotypes (Fusion-RR, Yukon-R, A4177G3-RIB, DKC23-17RIB, DKC26-28RIB) cultivated under cool climatic conditions. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12902
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http://dx.doi.org/10.1111/ppl.12902DOI Listing
December 2018
7 Reads
3.138 Impact Factor

Chemical and isotopic markers detect water deficit and its influence on nutrient allocation in Phaseolus vulgaris.

Physiol Plant 2018 Dec 11. Epub 2018 Dec 11.

School of Life and Environmental Sciences, Faculty of Science, Sydney Institute of Agriculture, The University of Sydney, Sydney, NSW, Australia.

The impact of drought on plant growth and yield has been widely studied and is considered a major limitation to crops reaching yield potential. Less known is the impact of water deficit on the nutritional quality of the resulting yield. This study characterised the impact of water deficit on carbon assimilation, modelled water use efficiency from carbon isotope discrimination and analysed the concentration of mineral nutrients, amino acids and sugars in leaf, phloem and pod pools collected from Phaseolus vulgaris L. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12899
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http://dx.doi.org/10.1111/ppl.12899DOI Listing
December 2018
3 Reads

Non-endogenous ketocarotenoid accumulation in engineered Synechocystis sp. PCC 6803.

Physiol Plant 2018 Dec 11. Epub 2018 Dec 11.

Istituto di Biologia e Biotecnologia Agraria, Consiglio Nazionale delle Ricerche, 20133, Milano, Italy.

The cyanobacterium Synechocystis sp. PCC 6803 is a model species commonly employed for biotechnological applications. It is naturally able to accumulate zeaxanthin (Zea) and echinenone (Ech), but not astaxanthin (Asx), which is the highest value carotenoid produced by microalgae, with a wide range of applications in pharmaceutical, cosmetics, food and feed industries. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12900
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http://dx.doi.org/10.1111/ppl.12900DOI Listing
December 2018
4 Reads

Warming and water deficit impact leaf photosynthesis and decrease forage quality and digestibility of a C4 tropical grass.

Physiol Plant 2019 Feb;165(2):383-402

Department of Biology, FFCLRP, University of Sao Paulo, Ribeirão Preto, São Paulo, Brazil.

Global warming is predicted to cause more intense extreme events such as heat waves, flooding and severe droughts, producing significant effects on agriculture. In tropics, climate change will severely impact livestock production affecting water availability, forage quality and food for cattle. We investigated the isolated and combined effects of soil water deficit (wS) and + 2°C increase in canopy temperature (eT) on leaf gas exchange, chlorophyll fluorescence, carbohydrate content, forage quality and in vitro dry matter digestibility (IVDMD) of a field-grown C4 tropical forage grass Panicum maximum Jacq. Read More

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http://doi.wiley.com/10.1111/ppl.12891
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http://dx.doi.org/10.1111/ppl.12891DOI Listing
February 2019
9 Reads

Acclimation and endogenous abscisic acid in the moss Physcomitrella patens during acquisition of desiccation tolerance.

Physiol Plant 2018 Dec 7. Epub 2018 Dec 7.

Department of Biology, University of South Dakota, Vermillion, SD, 57069, USA.

The moss Physcomitrella patens has been used as a model organism to study the induction of desiccation tolerance (DT), but links between dehydration rate, the accumulation of endogenous abscisic acid (ABA) and DT remain unclear. In this study, we show that prolonged acclimation of P. patens at 89% relative humidity (RH) [-16 MPa] can induce tolerance of desiccation at 33% RH (-153 MPa) in both protonema and gametophore stages. Read More

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http://dx.doi.org/10.1111/ppl.12892DOI Listing
December 2018
2 Reads

Does acclimation in cavitation resistance due to mechanical perturbation support the pit area or conduit reinforcement hypotheses in Phaseolus vulgaris?

Physiol Plant 2018 Dec 10. Epub 2018 Dec 10.

Department of Biology, Augustana University, Sioux Falls, SD, 57197, USA.

Two Phaseolus vulgaris L. cultivars were exposed to reduced water and stem mechanical perturbation treatments (flexing) to determine if acclimation to these treatments induced hydraulic changes, altered cavitation resistance and changed stem mechanical properties. Additionally, this study sought to determine if changes in cavitation resistance would support the pit area or conduit reinforcement hypotheses. Read More

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http://dx.doi.org/10.1111/ppl.12895DOI Listing
December 2018
6 Reads

A CRISPR/Cas9 deletion into the phosphate transporter SlPHO1;1 reveals its role in phosphate nutrition of tomato seedlings.

Physiol Plant 2018 Dec 8. Epub 2018 Dec 8.

Shanghai Center for Plant Stress Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 210602, China.

In vascular (Arabidopsis thaliana) and non-vascular (Physcomitrella patens) plants, PHOSPHATE 1 (PHO1) homologs play important roles in the acquisition and transfer of phosphate. The tomato genome contains six genes (SlPHO1;1-SlPHO1;6) homologous to AtPHO1. The six proteins have typical characteristics of the plant PHO1 family, such as the three Syg1/Pho81/XPRI (SPX) subdomains in the N-terminal portion and one ERD1/XPR1/SYG1 (EXS) domain in the C-terminal portion. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12897
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http://dx.doi.org/10.1111/ppl.12897DOI Listing
December 2018
6 Reads

Transcriptome profiles of soybean leaves and roots in response to zinc deficiency.

Physiol Plant 2018 Dec 10. Epub 2018 Dec 10.

College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.

Zinc (Zn) deficiency is a widespread agricultural problem in arable soils of the whole world. However, the molecular mechanisms underlying Zn-deficiency response are largely unknown. Here, we analyzed the transcriptomic profilings of soybean leaves and roots in response to Zn deficiency through Illumina's high-throughput RNA sequencing in order to understand the molecular basis of Zn-deficiency response in the plants. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/ppl.12894
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http://dx.doi.org/10.1111/ppl.12894DOI Listing
December 2018
10 Reads

Potassium deficiency aggravates yield loss in rice by restricting the translocation of non-structural carbohydrates under Sarocladium oryzae infection condition.

Physiol Plant 2018 Dec 8. Epub 2018 Dec 8.

Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture; Microelement Research Center, College of Resources and Environment, Huazhong Agricultural University, Wuhan, 430070, China.

Sheath rot disease (ShR) caused by Sarocladium oryzae (S. oryzae) infection is an emerging disease that causes severe yield loss by restricting the translocation of non-structural carbohydrates (NSC). Potassium (K) nutrition plays a critical role in disease resistance and the exportation of NSC. Read More

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http://dx.doi.org/10.1111/ppl.12896DOI Listing
December 2018
2 Reads