2,954 results match your criteria growth transpiration


Unravelling physiological signatures of tomato bacterial wilt and xylem metabolites exploited by Ralstonia solanacearum.

Environ Microbiol 2021 Apr 19. Epub 2021 Apr 19.

LIPM, Université de Toulouse, INRAE, CNRS, Castanet-Tolosan, France.

The plant pathogen Ralstonia solanacearum uses plant resources to intensely proliferate in xylem vessels and provoke plant wilting. We combined automatic phenotyping and tissue/xylem quantitative metabolomics of infected tomato plants to decipher the dynamics of bacterial wilt. Daily acquisition of physiological parameters such as transpiration and growth were performed. Read More

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Plant response to irrigation with water enriched with carbon dioxide.

New Phytol 1993 Oct;125(2):249-258

Department of Genetics and Ecology, University of Aarhus, Building 550, Ny Munkegade, DK-8000 Aarhus, Denmark.

The influence of irrigation with CO -enriched water on plant development and yield is reviewed. The reason for irrigation with CO -enriched water was - in most cases - to increase yield. The present evaluation considers results from over a hundred studies performed since the first experiment in 1866. Read More

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October 1993

Comparison of hydraulic architecture of woody plants of differing phylogeny and growth form with special reference to freestanding and hemi-epiphytic Ficus species from Panama.

New Phytol 1995 Jan;129(1):125-134

Smithsonian Tropical Research Institute, P.O. Box 2072, Balboa, Republic of Panama.

Hydraulic parameters were measured in seven species of Fiats (three free-standing and four hemi-epiphytic) on stem segments of 3-35 mm in wood diameter. Parameters measured included K (water flux per unit pressure gradient), K (leaf specific conductivity =K per unit leaf area), K (specific conductivity =H per unit wood cross section), and H (Huber value = wood cross section per unit leaf area). The hemi-epiphytes tended to have less conductive stems per unit leaf area (lower K and invested less wood cross section per unit leaf area (lower H ) than free-standing species. Read More

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January 1995

Influence of the host on three sub-Arctic annual facultative root hemiparasites: II. Gas exchange characteristics and resource use-efficiency.

Authors:
W E Seel M C Press

New Phytol 1994 May;127(1):37-44

School of Biological Sciences, Williamson Building University of Manchester, Oxford Road, Manchester, M13 9PL, UK.

Light saturated rates of photosynthesis (A ), water use-efficiency (WUE) and photosynthetic nitrogen use-efficiency (PNUE) were measured for three sub-Arctic annual root hemiparasites (Rhinanthus minor L., Euphrasia frigida L. and Melampyrum sylvaticum L. Read More

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Leaf age-structure effects on plant water use and photosynthesis of two wheat cultivars.

New Phytol 1994 Oct;128(2):331-337

Department of Plant Ecology and Evolutionary Biology, Utrecht University, PO Box 800.84, 3508 TB Utrecht, The Netherlands.

The wheat cultivars 'Katya Al' and 'Mexipak 65', grown in pots under field conditions in a Mediterranean climate, differed only slightly in growth and water use on a whole-plant basis, although Mexipak had a smaller leaf area. When expressed on a leaf area basis, plant biomass increase and transpiration were significantly greater in Mexipak. However, previous gas exchange measurements on the youngest fully expanded leaf showed only minor differences between the two cultivars. Read More

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October 1994

Drought acclimation and the morphology of mycorrhizal Rosa hybrida L. cv. 'Ferdy' is independent of leaf elemental content.

New Phytol 1990 Jul;115(3):503-510

Department of Horticultural Sciences, Texas A&M University, College Station, TX 77843, U.S.A.

Rosa hybrida L. cv. 'Ferdy' is a low maintenance landscape plant which is considered drought resistant. Read More

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Effect of nitrogen source on growth response to salinity stress in maize and wheat.

New Phytol 1989 Feb;111(2):155-160

Plant Adaptation Research Unit, The Jacob Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Sede Boqer Campus, Israel 84993.

The effect of ammonium and nitrate nutrition on maize and wheat grown hydroponically and salinity stressed was assessed from measurements of growth rate and gas exchange. In both maize and wheat the ammonium-grown plains were much more sensitive to salinity toxicity than nitrate-grown plants particularly when exposed to 60-80 mM salinity. Shoot growth was retarded to a far greater extent than root growth in salinity-stressed plants of both wheat and maize with either nitrogen source. Read More

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February 1989

Photosynthetic characteristics, stomatal responses and water relations of Fagus sylvatica: impact of air quality at a site in southern Britain.

New Phytol 1989 Nov;113(3):265-273

Department of Biological and Biomedical Science, University of Ulster, Northern Ireland, BT37 OQB.

Transplants of beech (Fagus sylvatcia L.) were grown in open-top chambers ventilated with either charcoal-filtered or unfiltered air. From May until September measurements of stomatal conductance to water vapour (g ) were made on trees in the chambers. Read More

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November 1989

WATER RELATIONS OF MYCORRHIZAL AND PHOSPHORUS-FERTILIZED NON-MYCORRHIZAL CITRUS UNDER DROUGHT STRESS.

New Phytol 1987 Mar;105(3):411-419

University of Florida, IFAS, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA.

Rootstock seedlings of Carrizo citrange (Poncirus trifoliata (L.) Raf. x C. Read More

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TANSLEY REVIEW No. 2: REGULATION OF PH AND GENERATION OF OSMOLARITY IN VASCULAR PLANTS: A COST-BENEFIT ANALYSIS IN RELATION TO EFFICIENCY OF USE OF ENERGY, NITROGEN AND WATER.

Authors:
John A Raven

New Phytol 1985 Sep;101(1):25-77

Department of Biological Sciences, University of Dundee, Dundee DD1 4HN, UK.

The benefits which this paper addresses are those of maintaining the intracellular acid-base balance during growth, and of generating osmolarity related to regulation of turgor in environments of low water potential. These benefits may incur costs in terms of the quantity of potentially growth-limiting resources (photons, water, nitrogen) which are needed to produce unit quantity of 'baseline' plant biomass. The direction (excess H or excess OH ) and magnitude of acid-base perturbation during growth depends on the nature of the N-source (NH , N or NO ), so that the costing of pH homoiostasis involves consideration of the costs of overall N-assimilation for comparison with the other costs of growth of a terrestrial C plant. Read More

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September 1985

Superoxide dismutase, catalase and peroxidase activities do not confer protection against oxidative damage in salt-stressed cowpea leaves.

New Phytol 2004 Sep;163(3):563-571

Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, CP 6020, CEP 60451-970, Fortaleza, Ceará, Brazil.

•  The aim of this study was to determine whether guaiacol peroxidase (POX), superoxide dismutase (SOD) and catalase (CAT) activities are effective in the protection and recovery of cowpea (Vigna unguiculata (L.) Walp.) leaves exposed to a salt-induced oxidative stress. Read More

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September 2004

A zinc-adapted fungus protects pines from zinc stress.

New Phytol 2004 Feb 1;161(2):549-555. Epub 2003 Dec 1.

Centre of Environmental Sciences, Environmental Biology Group, Limburgs Universitair Centrum, Universitaire Campus, B-3590 Diepenbeek, Belgium.

•  Here we investigated zinc tolerance of ectomycorrhizal Scots pine (Pinus sylvestris) seedlings. An ectomycorrhizal genotype of Suillus bovinus, collected from a Zn-contaminated site and showing adaptive Zn tolerance in vitro, was compared with a nonadapted isolate from a nonpolluted area. •  A dose-response experiment was performed. Read More

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February 2004

Comparative responses to water stress in stay-green, rapid- and slow senescing genotypes of the biomass crop, Miscanthus.

New Phytol 2002 May;154(2):335-345

Botany Department, Trinity College, University of Dublin, Dublin 2, Ireland.

•  Although hybrids of the perennial rhizomatous grass Miscanthus give high yields under irrigation, their use as a biomass crop in many locations is limited by inadequate water availability. Here, the effects of reduced water availability on growth are reported for three Miscanthus genotypes with differing responses to drought. •  In a controlled environment experiment during a drought treatment M. Read More

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Identification of drought-sensitive beech ecotypes by physiological parameters.

New Phytol 2002 May;154(2):373-387

Institut für Forstbotanik und Baumphysiologie, Professur für Baumphysiologie, Georges-Köhler-Allee Geb. 053/054, D-79110 Freiburg im Breisgau, Germany.

•  The effects of drought on European beech (Fagus sylvatica) were assessed in a pot experiment under controlled conditions. •  Plants from 11 autochthonous provenances originating from regions in Germany, which differed in annual precipitation, were exposed to a 3-wk drought period in a glasshouse after the first stage of shoot growth had been completed. •  Drought reduced the water content to 97% of control in leaves and axes and to 92% in the roots. Read More

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Seasonal variations in water flux compositions controlled by leaf development: isotopic insights at the canopy-atmosphere interface.

Int J Biometeorol 2021 Apr 13. Epub 2021 Apr 13.

State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China.

Water-stable isotopes provide a valuable tool for tracing plant-water interactions, particularly evapotranspiration (ET) partitioning and leaf water dynamics at the plant-atmosphere interface. However, process-based investigations of plant/leaf development and the associated isotopic dynamics of water fluxes involving isotope enrichment at plant-atmosphere interfaces at the ecosystem scale remain challenging. In this study, in situ isotopic measurements and tracer-aided models were used to study the dynamic interactions between vegetation growth and the isotopic dynamics of water fluxes (ET, soil evaporation, and transpiration) involving isotope enrichment in canopy leaves in a multispecies grassland ecosystem. Read More

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He-Ne laser accelerates seed germination by modulating growth hormones and reprogramming metabolism in brinjal.

Sci Rep 2021 Apr 12;11(1):7948. Epub 2021 Apr 12.

Department of Plant Sciences, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.

A plant's ability to maximize seed germination, growth, and photosynthetic productivity depends on its aptitude to sense, evaluate, and respond to the quality, quantity, and direction of the light. Among diverse colors of light possessing different wavelengths and red light shown to have a high impact on the photosynthetic and growth responses of the plants. The use of artificial light sources where the quality, intensity, and duration of exposure can be controlled would be an efficient method to increase the efficiency of the crop plants. Read More

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Arbuscular Mycorrhizal Fungi Alleviate Drought Stress in Trifoliate Orange by Regulating H-ATPase Activity and Gene Expression.

Front Plant Sci 2021 25;12:659694. Epub 2021 Mar 25.

Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, Czechia.

A feature of arbuscular mycorrhiza is enhanced drought tolerance of host plants, although it is unclear whether host H-ATPase activity and gene expression are involved in the physiological process. The present study aimed to investigate the effects of an arbuscular mycorrhizal fungus (AMF), , on H-ATPase activity, and gene expression of trifoliate orange () seedlings subjected to well-watered (WW) and drought stress (DS), together with the changes in leaf gas exchange, root morphology, soil pH value, and ammonium content. Soil drought treatment dramatically increased H-ATPase activity of leaf and root, and AMF inoculation further strengthened the increased effect. Read More

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The Spectral Irradiance, Growth, Photosynthetic Characteristics, Antioxidant System, and Nutritional Status of Green Onion ( L.) Grown Under Different Photo-Selective Nets.

Front Plant Sci 2021 25;12:650471. Epub 2021 Mar 25.

College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an, China.

The active regulation of the plant growth environment is a common method for optimizing plant yield and quality. In horticulture today, light quality control is carried out using photo-selective nets or membranes to improve the yield and quality of cultivated plants. In the present study, with natural light as the control (CK), we tested different photo-selective nets (white, WN; blue, BN; green, GN; yellow, YN; and red, RN) with 30% shade for characteristics of growth, development, quality, yield, photosynthesis, and chlorophyll fluorescence, considering the antioxidant system, as well as the influence of element absorption and transformation of green onion ( L. Read More

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Effects of ectomycorrhizal fungi (Suillus variegatus) on the growth, hydraulic function, and non-structural carbohydrates of Pinus tabulaeformis under drought stress.

BMC Plant Biol 2021 Apr 10;21(1):171. Epub 2021 Apr 10.

College of Forestry, Northwest A&F University, Yangling, 712100, People's Republic of China.

Background: A better understanding of non-structural carbohydrate (NSC) dynamics in trees under drought stress is critical to elucidate the mechanisms underlying forest decline and tree mortality from extended periods of drought. This study aimed to assess the contribution of ectomycorrhizal (ECM) fungus (Suillus variegatus) to hydraulic function and NSC in roots, stems, and leaves of Pinus tabulaeformis subjected to different water deficit intensity. We performed a continuous controlled drought pot experiment from July 10 to September 10, 2019 using P. Read More

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Soil tillage affects soybean growth and promotes heavy metal accumulation in seeds.

Ecotoxicol Environ Saf 2021 Apr 5;216:112191. Epub 2021 Apr 5.

Department of Biology, Federal University of Santa Maria, Natural Science Centre, Roraima Avenue, 1000, 97105-900, Santa Maria, RS, Brazil.

When soybean is grown in soils with high heavy metal concentrations, it may introduce those contaminants into the human food chain, posing risks to human health. This study evaluated the effect of tilling the soil with high Cu, Zn, and Mn levels on soybean physiology and metal accumulation in seeds. Disturbed and undisturbed soil samples were collected in two different sites: a vineyard with high heavy metal concentration and a grassland area, containing natural vegetation. Read More

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Physiological and biochemical responses of Kinnow mandarin grafted on diploid and tetraploid Volkamer lemon rootstocks under different water-deficit regimes.

PLoS One 2021 8;16(4):e0247558. Epub 2021 Apr 8.

Department of Food and Tourism Engineering and Management, Transilvania University of Brasov, Brasov, Romania.

Water shortage is among the major abiotic stresses that restrict growth and productivity of citrus. The existing literature indicates that tetraploid rootstocks had better water-deficit tolerance than corresponding diploids. However, the associated tolerance mechanisms such as antioxidant defence and nutrient uptake are less explored. Read More

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Different ABA-deficient mutants show unique morphological and hydraulic responses to high air humidity.

Physiol Plant 2021 Apr 7. Epub 2021 Apr 7.

Lancaster Environment Centre, Lancaster University, Lancaster, UK.

High relative humidity (RH) perturbs plant growth, stomatal functioning and ABA homeostasis, but the role of ABA in this physiological regulation is equivocal. To determine the role(s) of ABA in plant responses to high RH, wild-type (WT) tomato and barley plants and their respective ABA-deficient mutants flacca and Az34 (which are mutated in the same locus of the ABA biosynthesis pathway) were grown in contrasting RHs (60 and 90%) to measure biomass partitioning, stomatal traits and water relations. Surprisingly, growth RH did not affect foliar ABA levels in either species. Read More

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Understanding the mechanistic basis of adaptation of perennial Sarcocornia quinqueflora species to soil salinity.

Physiol Plant 2021 Apr 7. Epub 2021 Apr 7.

Tasmanian Institute of Agriculture, University of Tasmania, Hobart, Tasmania, Australia.

Succulent halophytes can be used as convenient models for understanding the mechanistic basis of plant adaptation to salt stress. In this work, the effects of salinity (0 - 1000 mM NaCl range) on growth, ion accumulation and stomatal features were investigated in the succulent halophyte Sarcocornia quinqueflora. Elevated salinity levels up to 400 mM NaCl largely promoted dry matter yield, succulence, shoot surface area and stomatal characteristics. Read More

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Aeroponic systems: A unique tool for estimating plant water relations and NO uptake in response to salinity stress.

Plant Direct 2021 Apr 29;5(4):e00312. Epub 2021 Mar 29.

French Associates Institute for Agriculture and Biotechnology of Drylands Jacob Blaustein Institutes for Desert Research Ben-Gurion University of the Negev Midreshet Ben-Gurion Israel.

The study of transpiration, water, and nutrient uptake during abiotic stress in the root zone is hindered because of the hidden nature of the root zone. In this study, a modified aeroponic system was used to evaluate whole plant transpiration, nitrate and water uptake in the growth and development of tomato plants in response to salinity. Tomato seedlings were exposed to three levels of salinity (1. Read More

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Prunus Hexokinase 3 genes alter primary C-metabolism and promote drought and salt stress tolerance in Arabidopsis transgenic plants.

Sci Rep 2021 Mar 29;11(1):7098. Epub 2021 Mar 29.

Instituto de Investigaciones Agropecuarias CRI Rayentué, Av. Salamanca s/n, Sector Los Choapinos, Rengo, Chile.

Hexokinases (HXKs) and fructokinases (FRKs) are the only two families of enzymes in plants that have been identified as able to phosphorylate Glucose (Glc) and Fructose (Fru). Glc can only be phosphorylated in plants by HXKs, while Fru can be phosphorylated by either HXKs or FRKs. The various subcellular localizations of HXKs in plants indicate that they are involved in diverse functions, including anther dehiscence and pollen germination, stomatal closure in response to sugar levels, stomatal aperture and reducing transpiration. Read More

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Metabolome profiling reveals impact of water limitation on grain filling in contrasting rice genotypes.

Plant Physiol Biochem 2021 May 25;162:690-698. Epub 2021 Feb 25.

Department of Crop Physiology, University of Agricultural Sciences, Bengaluru, India. Electronic address:

Drought significantly decreases crop productivity, especially in high water consuming crops like rice. Grain filling is one of the important critical growth phases in rice and drought during this phase leads to significant reduction in yield. In this study, a comparison was made between IR64 (drought susceptible) and Apo (drought tolerant) rice genotypes to capture the response to water limitation (50% field capacity (FC)) compared with the control (100%FC) during grain filling. Read More

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Zinc affects the physiology and medicinal components of Dendrobium nobile Lindl.

Plant Physiol Biochem 2021 May 23;162:656-666. Epub 2021 Mar 23.

Department of Landscape Plants, Sichuan Agricultural University, Chengdu, 611130, China. Electronic address:

The growth of Dendrobium nobile is often influenced by zinc. Here, D. nobile was regularly sprayed with different concentrations (0, 50, 100, 200, 400, 800, 1000, 2000 μmol L) of zinc to study its effect on the growth and biosynthesis of medicinal components. Read More

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Arbuscular Mycorrhiza Improves Photosynthesis and Restores Alteration in Sugar Metabolism in L. Grown in Arsenic Contaminated Soil.

Front Plant Sci 2021 11;12:640379. Epub 2021 Mar 11.

Department of Botany, University of Delhi, New Delhi, India.

Contamination of agricultural soil by arsenic (As) is a serious menace to environmental safety and global food security. Symbiotic plant-microbe interaction, such as arbuscular mycorrhiza (AM), is a promising approach to minimize hazards of As contamination in agricultural soil. Even though the potential of AM fungi (AMF) in redeeming As tolerance and improving growth is well recognized, the detailed metabolic and physiological mechanisms behind such beneficial effects are far from being completely unraveled. Read More

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Dissection of Drought Tolerance in Upland Cotton Through Morpho-Physiological and Biochemical Traits at Seedling Stage.

Front Plant Sci 2021 12;12:627107. Epub 2021 Mar 12.

Soil and Environmental Sciences Division, Nuclear Institute for Agriculture and Biology, Faisalabad, Pakistan.

Cotton is an important fiber and cash crop. Extreme water scarceness affects the growth, quality, and productivity of cotton. Water shortage has threatened the future scenario for cotton growers, so it is imperative to devise a solution to this problem. Read More

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Different Waterlogging Depths Affect Spatial Distribution of Fine Root Growth for Seedlings.

Front Plant Sci 2021 10;12:614764. Epub 2021 Mar 10.

Laboratory of Silviculture, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.

The increase of waterlogged environments at forests and urban greenery is of recent concern with the progress of climate change. Under waterlogging, plant roots are exposed to hypoxic conditions, which strongly affect root growth and function. However, its impact is dependent on various factors, such as waterlogging depth. Read More

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