3,516 results match your criteria angiosperms differing

Stigma structure and receptivity in papaya (Carica papaya L.).

An Acad Bras Cienc 2021 26;93(1):e20190605. Epub 2021 Mar 26.

Universidade Federal do Recôncavo da Bahia/UFRB, Rua Rui Barbosa, 710, Centro, 44380-000 Cruz das Almas, BA, Brazil.

The objective of this study was to evaluate the stigma morphoanatomy and receptivity in ten promising papaya accessions, to expand knowledge useful for genetic improvement of the culture. The morphoanatomy was analyzed by light and scanning electron microscopy, and the stigma receptivity was investigated by application of hydrogen peroxide and α-naphthyl-acetate with fast blue B salt, in pre-anthesis, anthesis and post-anthesis. The papaya accessions presented dry stigma surface, presence of one to six erect stigmatic lobes, with structures joined to the upper base of the style and covered with numerous elongated unicellular tubular papillae, distributed on both faces of the epidermis. Read More

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Assessing the relevant time frame for temperature acclimation of leaf dark respiration: A test with 10 boreal and temperate species.

Glob Chang Biol 2021 Mar 20. Epub 2021 Mar 20.

Department of Forest Resources, University of Minnesota, St. Paul, MN, USA.

Plants often adjust their leaf mitochondrial ("dark") respiration (R ) measured at a standardized temperature such as 20°C (R ) downward after experiencing warmer temperatures and upward after experiencing cooler temperatures. These responses may help leaves maintain advantageous photosynthetic capacity and/or be a response to recent photosynthate accumulation, and can occur within days after a change in thermal regime. It is not clear, however, how the sensitivity and magnitude of this response change over time, or which time period prior to a given measurement best predicts R . Read More

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Physiological and metabolomics responses of two wheat (Triticum aestivum L.) genotypes differing in grain cadmium accumulation.

Sci Total Environ 2021 May 22;769:145345. Epub 2021 Jan 22.

Key Laboratory of Environmental Remediation and Ecosystem Health, Ministry of Education (MOE), College of Environmental and Resources Sciences, Zhejiang University, Hangzhou 310058, PR China. Electronic address:

To reduce cadmium (Cd) pollution of food chains, screening and breeding of low-Cd-accumulating genotypes have received increasing attention. However, the mechanisms involving Cd tolerance and accumulation are not fully understood. Here, we investigated the physiological responses and metabolomics profiling on two wheat (Triticum aestivum L. Read More

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Particle size-dependent biomolecular footprints of interactive microplastics in maize.

Environ Pollut 2021 May 22;277:116772. Epub 2021 Feb 22.

Vocational School of Technical Sciences, Recep Tayyip Erdogan University, Rize, Turkey.

The world is dealing with the mismanaged plastic waste found even in the Arctic. The crisis is being tried to solve with the plastivor bugs or bio-plastics, and the marine pollution profiles become priority however, putative phytotoxicity on terrestrial farming have not received significant attention. Hence, morpho-physiological and molecular response in maize seedlings exposed to the most prevalent microplastic (MP) types (PP, PET, PVC, PS, PE) differing in their particle size (75-150 μm and 150-212 μm) and combinations (PP + PET + PVC + PS + PE mix) was analyzed here for a predictive holistic model. Read More

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Distribution of 5,6-dihydro-α-pyrones by electrospray ionization ion trap mass spectrometry in different aerial parts of Hyptis monticola.

Phytochemistry 2021 May 8;185:112706. Epub 2021 Mar 8.

Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Ilha do Fundão, 21941-902, Rio de Janeiro, Brazil. Electronic address:

Hyptis monticola Mart. ex Benth. (Lamiaceae) is an endemic species of altitude regions of Brazil. Read More

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Subunit E isoform 1 of vacuolar H+-ATPase OsVHA enables post-Golgi trafficking of rice seed storage proteins.

Plant Physiol 2021 Feb 24. Epub 2021 Feb 24.

State Key Laboratory of Crop Genetics and Germplasm Enhancement, Jiangsu Plant Gene Engineering Research Center, Nanjing Agricultural University, Nanjing 210095, China.

Dense vesicles (DVs) are Golgi-derived plant-specific carriers that mediate post-Golgi transport of seed storage proteins in angiosperms. How this process is regulated remains elusive. Here, we report a rice (Oryza sativa) mutant, named glutelin precursor accumulation8 (gpa8) that abnormally accumulates 57 kD proglutelins in the mature endosperm. Read More

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February 2021

Frozen in the dark: interplay of night-time activity of xanthophyll cycle, xylem attributes, and desiccation tolerance in fern resistance to winter.

J Exp Bot 2021 Apr;72(8):3168-3184

Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain.

While most ferns avoid freezing as they have a tropical distribution or shed their fronds, wintergreen species in temperate and boreoalpine ecosystems have to deal with sub-zero temperatures. Increasing evidence has revealed overlapping mechanisms of desiccation and freezing tolerance in angiosperms, but the physiological mechanisms behind freezing tolerance in ferns are far from clear. We evaluated photochemical and hydraulic parameters in five wintergreen fern species differing in their ability to tolerate desiccation. Read More

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Evolutionary divergence of potential drought adaptations between two subspecies of an annual plant: Are trait combinations facilitated, independent, or constrained?

Am J Bot 2021 02 1;108(2):309-319. Epub 2021 Feb 1.

Department of Biology, Grinnell College, Grinnell, IA, 50112, USA.

Premise: Whether drought-adaptation mechanisms tend to evolve together, evolve independently, or evolve constrained by genetic architecture is incompletely resolved, particularly for water-relations traits besides gas exchange. We addressed this issue in two subspecies of Clarkia xantiana (Onagraceae), California winter annuals that separated approximately 65,000 years ago and are adapted, partly by differences in flowering time, to native ranges differing in precipitation.

Methods: In these subspecies and in recombinant inbred lines (RILs) from a cross between them, we scored traits related to drought adaptation (timing of seed germination and of flowering, succulence, pressure-volume curve variables) in common environments. Read More

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February 2021

Temporal and Agricultural Factors Influence Escherichia coli Survival in Soil and Transfer to Cucumbers.

Appl Environ Microbiol 2021 03 11;87(7). Epub 2021 Mar 11.

USDA ARS, Northeast Area, Beltsville Agricultural Research Center, Environmental Microbial and Food Safety Laboratory, Beltsville, Maryland, USA

Biological soil amendments of animal origin (BSAAO) increase nutrient levels in soils to support the production of fruits and vegetables. BSAAOs may introduce or extend the survival of bacterial pathogens which can be transferred to fruits and vegetables to cause foodborne illness. survival over 120 days in soil plots (3 m) covered with (mulched) or without plastic mulch (not mulched), amended with either poultry litter, composted poultry litter, heat-treated poultry pellets, or chemical fertilizer, and transfer to cucumbers in 2 years (2018 and 2019) were evaluated. Read More

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LysM Receptor-Like Kinase LYK9 of L. May Regulate Plant Responses to Chitooligosaccharides Differing in Structure.

Int J Mol Sci 2021 Jan 12;22(2). Epub 2021 Jan 12.

All-Russia Research Institute for Agricultural Microbiology, Podbelsky chausse 3, 196608 Saint Petersburg, Russia.

This study focused on the interactions of pea ( L.) plants with phytopathogenic and beneficial fungi. Here, we examined whether the lysin-motif (LysM) receptor-like kinase LYK9 is directly involved in the perception of long- and short-chain chitooligosaccharides (COs) released after hydrolysis of the cell walls of phytopathogenic fungi and identified in arbuscular mycorrhizal (AM) fungal exudates. Read More

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January 2021

Serratia sp. CP-13 alleviates Cd toxicity by morpho-physio-biochemical improvements, antioxidative potential and diminished Cd uptake in Zea mays L. cultivars differing in Cd tolerance.

Ecotoxicol Environ Saf 2021 Jan 6;208:111584. Epub 2020 Nov 6.

Department of Botany, Faculty of Life Sciences, Government College University, Faisalabad 38000, Pakistan.

Cadmium (Cd) is highly toxic for plant metabolic processes even in low concentration due to higher retention rates, longer half-life and non-biodegradable nature. The current study was designed to assess the bioremediation potential of Cd tolerant PGPR, Serratia sp. CP-13 together with two differentially Cd tolerant maize cultivars (MMRI-Yellow, Sahiwal-2002) selected amongst ten cultivars after screening. Read More

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January 2021

Transcriptome analysis and differential gene expression profiling of two contrasting quinoa genotypes in response to salt stress.

BMC Plant Biol 2020 Dec 30;20(1):568. Epub 2020 Dec 30.

Xinyang Agricultural Experiment Station of Yancheng City, Yancheng, 224049, Jiangsu, China.

Background: Soil salinity is one of the major abiotic stress factors that affect crop growth and yield, which seriously restricts the sustainable development of agriculture. Quinoa is considered as one of the most promising crops in the future for its high nutrition value and strong adaptability to extreme weather and soil conditions. However, the molecular mechanisms underlying the adaptive response to salinity stress of quinoa remain poorly understood. Read More

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December 2020

Molecular Characteristics of Jujube Yellow Mottle-Associated Virus Infecting Jujube ( Mill.) Grown at Aksu in Xinjiang of China.

Viruses 2020 12 25;13(1). Epub 2020 Dec 25.

Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.

Chinese jujube ( Mill.) is a native fruit crop in China. Leaf mottle and dapple fruit disease is prevalent in cultivated jujube plants grown at Aksu in Xinjiang Uygur Autonomous Region of China. Read More

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December 2020

Anti-Platelet Aggregation and Anti-Cyclooxygenase Activities for a Range of Coffee Extracts ().

Molecules 2020 Dec 22;26(1). Epub 2020 Dec 22.

Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.

Coffee is rich in caffeine (CF), chlorogenic acid (CGA) and phenolics. Differing types of coffee beverages and brewing procedures may result in differences in total phenolic contents (TPC) and biological activities. Inflammation and increases of platelet activation and aggregation can lead to thrombosis. Read More

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December 2020

 Importance of the C Carbon Chain in the Biological Activity of Rhamnolipids Conferring Protection in Wheat against .

Molecules 2020 Dec 23;26(1). Epub 2020 Dec 23.

Joint Research Unit N° 1158 BioEcoAgro, Junia, Univ. Lille, INRAE, Univ. Liège, UPJV, Univ. Artois, ULCO, 48, boulevard Vauban, BP 41290, F-59014 Lille CEDEX, France.

The hemibiotrophic fungus , responsible for Septoria tritici blotch, is currently the most devastating foliar disease on wheat crops worldwide. Here, we explored, for the first time, the ability of rhamnolipids (RLs) to control this pathogen, using a total of 19 RLs, including a natural RL mixture produced by and 18 bioinspired RLs synthesized using green chemistry, as well as two related compounds (lauric acid and dodecanol). These compounds were assessed for in vitro antifungal effect defence elicitation (peroxidase and catalase enzyme activities), and protection efficacy on the wheat- pathosystem. Read More

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December 2020

Effects of C/N ratio variation in swine biogas slurry on soil dissolved organic matter: Content and fluorescence characteristics.

Ecotoxicol Environ Saf 2021 Feb 22;209:111804. Epub 2020 Dec 22.

School of Resource and Environment, Northeast Agricultural University, Harbin 150030, China. Electronic address:

Nutrient-rich biogas slurry shows favorable prospects for application as an organic fertilizer in farmland. At the same time, due to differing sources and treatment methods, the C/N ratio of biogas slurry varies greatly. The effect of differences in C/N of biogas slurry on soil organic matter properties remains unclear. Read More

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February 2021

Distinct Preflowering Drought Tolerance Strategies of Genotype RTx430 Revealed by Subcellular Protein Profiling.

Int J Mol Sci 2020 Dec 19;21(24). Epub 2020 Dec 19.

Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA.

Drought is the largest stress affecting agricultural crops, resulting in substantial reductions in yield. Plant adaptation to water stress is a complex trait involving changes in hormone signaling, physiology, and morphology. Sorghum ( (L. Read More

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December 2020

An increase in dietary lipid content from different forms of double-low rapeseed reduces enteric methane emission in Datong yaks on the Qinghai-Tibetan Plateau.

Anim Sci J 2020 Jan;91(1):e13489

Key Laboratory of Plateau Grazing Animal Nutrition and Feed Science of Qinghai Province, The Academy of Animal and Veterinary Sciences, State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China.

Enteric methane (CH ) emission in cattle generally decreases by approximately 1 g/g dry matter intake (DMI) with an increase in dietary lipids of 10 g/kg dry matter (DM). The effect of dietary lipids on CH emission in yaks has not been reported and is the subject of this study. Four Datong yaks were used in a 4 × 4 Latin-square design in which the four treatments included restricted intakes of double-low rapeseed differing in form and lipid (ether extract-EE) content: (a) rapeseed meal (EE 32. Read More

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January 2020

Comparative transcriptome profiling reveals that brassinosteroid-mediated lignification plays an important role in garlic adaption to salt stress.

Plant Physiol Biochem 2021 Jan 24;158:34-42. Epub 2020 Nov 24.

Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetics Improvement of Horticultural Crops, Ministry of Agriculture, Beijing, 100081, China. Electronic address:

Garlic (Allium sativum L.) is an economically important vegetable crop which is used worldwide for culinary and medicinal purposes. Soil salinity constrains the yield components of garlic. Read More

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January 2021

Comparative transcriptome analysis of two rice genotypes differing in their tolerance to saline-alkaline stress.

PLoS One 2020 1;15(12):e0243112. Epub 2020 Dec 1.

State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, the Chinese Academy of Sciences, Beijing, China.

Saline-alkaline stress is an abiotic stress that suppresses rice plant growth and reduces yield. However, few studies have investigated the mechanism by which rice plants respond to saline-alkaline stress at a global transcriptional level. Dongdao-4 and Jigeng-88, which differ in their tolerance to saline-alkaline stress, were used to explore gene expression differences under saline-alkaline stress by RNA-seq technology. Read More

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January 2021

Differential mechanisms between traditionally established and new highbush blueberry (Vaccinium corymbosum L.) cultivars reveal new insights into manganese toxicity resistance.

Plant Physiol Biochem 2021 Jan 23;158:454-465. Epub 2020 Nov 23.

Center of Plant, Soil Interaction, and Natural Resources Biotechnology, Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile; Departamento de Ciencias Químicas y Recursos Naturales, Facultad de Ingeniería, Ciencias y Administración, Universidad de La Frontera, P.O. Box 54-D, Temuco, Chile. Electronic address:

In acid soils, manganese (Mn) concentration increases, becoming toxic to plants. Mn toxicity differentially affects physiological processes in highbush blueberry (Vaccinium corymbosum L.) cultivars. Read More

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January 2021

Stable isotope fractionation of cadmium in the soil-rice-human continuum.

Sci Total Environ 2021 Mar 12;761:143262. Epub 2020 Nov 12.

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

Consumption of rice (Oryza sativa) grain is a major pathway by which humans are exposed to Cd, especially in non-smoking Asian populations. Although the stable isotope signatures of Cd offer a potential tool for tracing its sources, little is known about the isotopic fractionation of Cd across the entire soil-rice-human continuum. Cadmium isotope ratios were determined in field soils, rice grain, and human urine collected from two Cd-contaminated regions in southern China. Read More

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Early metabolic priming under differing carbon sufficiency conditions influences peach fruit quality development.

Plant Physiol Biochem 2020 Dec 9;157:416-431. Epub 2020 Nov 9.

Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, 80523, USA. Electronic address:

Crop load management is an important preharvest factor to balance yield, quality, and maturation in peach. However, few studies have addressed how preharvest factors impact metabolism on fruit of equal maturity. An experiment was conducted to understand how carbon competition impacts fruit internal quality and metabolism in 'Cresthaven' peach trees by imposing distinct thinning severities. Read More

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December 2020

Glandular trichomes of Robinia viscosa Vent. var. hartwigii (Koehne) Ashe (Faboideae, Fabaceae)-morphology, histochemistry and ultrastructure.

Planta 2020 Nov 12;252(6):102. Epub 2020 Nov 12.

Department of Botany, Warsaw, University of Life Sciences, Nowoursynowska 159, 02-776, Warsaw, Poland.

Main Conclusion: Permanent glandular trichomes of Robinia viscosa var. hartwigii produce viscous secretion containing several secondary metabolites, as lipids, mucilage, flavonoids, proteins and alkaloids. Robinia viscosa var. Read More

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November 2020

Two cytotype niche shifts are of different magnitude in Solidago gigantea.

Am J Bot 2020 11 4;107(11):1567-1576. Epub 2020 Nov 4.

Department of Biological Sciences, Wichita State University, 537 Hubbard Hall, Wichita, Kansas, 67260, USA.

Premise: Polyploidy may serve to contribute to range size if autopolyploid cytotypes are adapted to differing ecological conditions. This study aims to establish the geographic distribution of cytotypes within the giant goldenrod (Solidago gigantea), and to assess whether cytotypes exhibit differing ecological tolerances and morphology.

Methods: A range-wide set of 629 Solidago gigantea individuals was obtained through field collecting, sampling from herbarium specimens, and incorporating existing chromosome counts. Read More

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November 2020

Assessment of the effects of novel insecticides on green peach aphid (Myzus persicae) feeding and transmission of Turnip mosaic virus (TuMV).

Pest Manag Sci 2021 Mar 22;77(3):1482-1491. Epub 2020 Nov 22.

Vineland Research Farm, Agriculture and Agri-Food Canada, Vineland, Canada.

Background: Laboratory bioassays using treated leaf disks of peach were conducted to determine the efficacy of nine insecticides against the green peach aphid (GPA), Myzus persicae (Sulzer). The effects of these insecticides on aphid feeding behaviors and rates of transmission of Turnip mosaic virus (TuMV) to potted rutabaga plants were also determined.

Results: Median lethal concentration (LC ) values after 48 h feeding varied considerably, ranging from lows of 1. Read More

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Effects of genomic and functional diversity on stand-level productivity and performance of non-native Arabidopsis.

Proc Biol Sci 2020 10 21;287(1937):20202041. Epub 2020 Oct 21.

Department of Biology, Pennsylvania State University, USA.

Biodiversity can affect the properties of groups of organisms, such as ecosystem function and the persistence of colonizing populations. Genomic data offer a newly available window to diversity, complementary to other measures like taxonomic or phenotypic diversity. We tested whether native genetic diversity in field experimental stands of affected their aboveground biomass and fecundity in their colonized range. Read More

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October 2020

Trade-offs between xylem water and carbohydrate storage among 24 coexisting subtropical understory shrub species spanning a spectrum of isohydry.

Tree Physiol 2021 Mar;41(3):403-415

Qianyanzhou Ecological Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.

Hydraulic capacitance and carbohydrate storage are two drought adaptation strategies of woody angiosperms. However, we currently lack information on their associations and how they are associated with species' degree of isohydry. We measured total stem xylem nonstructural carbohydrate (NSC) concentration in the dry and wet seasons, xylem hydraulic capacitance, native leaf water potentials, pressure-volume curve parameters and photosynthetic performance in 24 woody understory species differing in their degree of isohydry. Read More

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Phylogenetic diversity shapes salt tolerance in Phragmites australis estuarine populations in East China.

Sci Rep 2020 10 19;10(1):17645. Epub 2020 Oct 19.

Department of Biology, Aarhus University, Ole Worms Allé 1, 8000, Aarhus C, Denmark.

Estuaries are dynamic and selective environments that provide frequent opportunities for the turnover of Phragmites australis populations. We studied Phragmites genetic diversity patterns in three of the major deltas of China, viz. the Yellow River, the Yangtze and the Liaohe, in relation to Phragmites global phylogeography and soil salinity. Read More

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October 2020

Persistent pollutants in Northern Gannet Morus bassanus eggs in Ireland: Levels and colony differences.

Environ Pollut 2021 Jan 5;268(Pt A):115723. Epub 2020 Oct 5.

Marine and Freshwater Research Centre, Galway-Mayo Institute of Technology, Dublin Road, Co. Galway, Ireland.

Seabird eggs are considered a favourable matrix for monitoring marine pollutants and are widely used as higher trophic level indicators. Persistent organic pollutants such as polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and other organochlorine compounds (OCs) as well as metals have been shown to have deleterious impacts on seabirds. The Northern Gannet Morus bassanus is an avian sentinel; the largest breeding seabird in Ireland and an obligate piscivore. Read More

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January 2021