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Journal articles on the topic 'Stomatal conductance'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Eensalu, Eve, Priit Kupper, Arne Sellin, Märt Rahi, Anu Sõber, and Olevi Kull. "Do stomata operate at the same relative opening range along a canopy profile of Betula pendula?" Functional Plant Biology 35, no. 2 (2008): 103. http://dx.doi.org/10.1071/fp07258.

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Stomatal density and size were measured along the light gradient of a Betula pendula Roth. canopy in relation to microclimatic conditions. The theoretical stomatal conductance was calculated using stomatal density and dimensions to predict to what degree stomatal conductance is related to anatomical properties and relative stomatal opening. Stomatal density was higher and leaf area smaller in the upper canopy, whereas epidermal cell density did not change significantly along the canopy light gradient, indicating that stomatal initiation is responsible for differences in stomatal density. Stoma

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2

Aasamaa, Krõõt, Anu Sõber, and Märt Rahi. "Leaf anatomical characteristics associated with shoot hydraulic conductance, stomatal conductance and stomatal sensitivity to changes of leaf water status in temperate deciduous trees." Functional Plant Biology 28, no. 8 (2001): 765. http://dx.doi.org/10.1071/pp00157.

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Some anatomical characteristics in leaves relating to hydraulic conductance and stomatal conductance were examined in six temperate deciduous tree species. The fourth power of the radius of the conducting elements in xylem (r4) and the area of mesophyll and epidermal cells per unit length of leaf cross-section (u) were high in leaves with high hydraulic conductance (L). Stomatal conductance (gs) and stomatal sensitivity to an increase in leaf water potential (si) correlated positively with the length of stomatal pore (l), but negatively with the guard cell width (z) and the length of the dorsa

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3

Shackel, K. A., V. Novello, and E. G. Sutter. "Stomatal Function and Cuticular Conductance in Whole Tissue-cultured Apple Shoots." Journal of the American Society for Horticultural Science 115, no. 3 (1990): 468–72. http://dx.doi.org/10.21273/jashs.115.3.468.

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The relative contribution of stomatal and cuticular conductance to transpiration from whole tissue-cultured apple shoots of Malus pumila Mill. M.26 was determined with a modified steady state porometer. When shoots were exposed to 90% RH and high boundary layer conductance, large (73%) and, in some eases, rapid (2 to 3 hours) reductions in leaf conductance occurred, indicating functional stomata. Stomatal closure was also observed microscopically. A maximum estimate for the cuticular conductance of these apple leaves was 18 to 40 mmol·m-2·s-1, which is lower than previous estimates and close t

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4

Munger, Philip H., James M. Chandler, and J. Tom Cothren. "Effect of Water Stress on Photosynthetic Parameters of Soybean (Glycine max) and Velvetleaf (Abutilon theophrasti)." Weed Science 35, no. 1 (1987): 15–21. http://dx.doi.org/10.1017/s0043174500026722.

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Greenhouse experiments were conducted to elucidate the effects of water stress on photosynthetic parameters of soybean [Glycine max(L.) Merr. ‘Hutton′] and velvetleaf (Abutilon theophrastiMedik. # ABUTH). Stomatal conductance of both species responded curvilinearly to reductions in leaf water potential. At leaf water potentials less negative than −2.5 MPa, stomatal conductance, net photosynthetic rate, and transpiration rate were greater in velvetleaf than in soybean. Soybean photosynthetic rate was linearly related to stomatal conductance. Velvetleaf photosynthetic rate increased linearly wit

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5

Ceulemans, R., I. Impens, and R. Imler. "Stomatal conductance and stomatal behavior in Populus clones and hybrids." Canadian Journal of Botany 66, no. 7 (1988): 1404–14. http://dx.doi.org/10.1139/b88-196.

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Responses of abaxial, adaxial, and total leaf conductance to incident photosynthetic photon flux density, solar irradiance, and changing leaf water potential, as well as diurnal and seasonal patterns of stomatal conductances, were examined under field conditions for six Populus clones. Clones belonged to the species P. trichocarpa and to different interspecific crossings including P. deltoides, P. nigra, and P. maximowiczii. Black Cottonwood clone Columbia River showed stomatal behavior different from other clones in many aspects: (i) it was the only clone with hypostomatous leaves; (ii) its s

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6

Monje, Oscar, and Bruce Bugbee. "Radiometric Method for Determining Canopy Stomatal Conductance in Controlled Environments." Agronomy 9, no. 3 (2019): 114. http://dx.doi.org/10.3390/agronomy9030114.

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Canopy stomatal conductance is a key physiological factor controlling transpiration from plant canopies, but it is extremely difficult to determine in field environments. The objective of this study was to develop a radiometric method for calculating canopy stomatal conductance for two plant species—wheat and soybean from direct measurements of bulk surface conductance to water vapor and the canopy aerodynamic conductance in controlled-environment chambers. The chamber provides constant net radiation, temperature, humidity, and ventilation rate to the plant canopy. In this method, stepwise cha

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7

Leuning, R. "Modelling Stomatal Behaviour and and Photosynthesis of Eucalyptus grandis." Functional Plant Biology 17, no. 2 (1990): 159. http://dx.doi.org/10.1071/pp9900159.

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Stomatal conductances, CO2 assimilation, transpiration and intercellular CO2 mol fractions of Eucalyptus grandis leaves were measured in the field using a portable, controlled environment cuvette. Test leaves were subjected to a range of temperatures, humidities, photon irradiances and external CO2 mol fractions. An empiral function, gsw = g0 + g1 Ahs/(cs-I'), was able to account for steady- state stomatal conductances g*sw, over a wide range of environmental conditions and leaf photosynthetic capacities. In this equation, termed the stomatal constraint function, A is CO2 assimilation rate, hs

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8

Brodribb, Tim, and Robert S. Hill. "Imbricacy and Stomatal Wax Plugs Reduce Maximum Leaf Conductance in Southern Hemisphere Conifers." Australian Journal of Botany 45, no. 4 (1997): 657. http://dx.doi.org/10.1071/bt96060.

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An examination of the relationship between theoretical maximum leaf conductance as calculated from stomatal dimensions, and measured maximum leaf conductance was undertaken in a group of Southern Hemisphere conifers. The relative effects of stomatal wax plugs, found in most species of conifers in the Southern Hemisphere, and imbricate leaf arrangement were expressed as a percentage inhibition of maximum leaf conductance (gmax) calculated from the ratio of measured gmax to theoretical gmax Because of the similar stomatal dimensions of all species, measured gmax was proportional to stomatal dens

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9

Zhang, Qiangqiang, Shaobing Peng, and Yong Li. "Increase rate of light-induced stomatal conductance is related to stomatal size in the genus Oryza." Journal of Experimental Botany 70, no. 19 (2019): 5259–69. http://dx.doi.org/10.1093/jxb/erz267.

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Abstract The rapid response of stomatal conductance (gs) to fluctuating irradiance is of great importance to maximize carbon assimilation while minimizing water loss. Smaller stomata have been proven to have a faster response rate than larger ones, but most of these studies have been conducted with forest trees. In the present study, the effects of stomatal anatomy on the kinetics of gs and photosynthesis were investigated in 16 Oryza genotypes. Light-induced stomatal opening includes an initial time lag (λ) followed by an exponential increase. Smaller stomata had a larger maximum stomatal con

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10

Zhang, Dandan, Caijuan Tian, Kangquan Yin, Wenyi Wang, and Jin-Long Qiu. "Postinvasive Bacterial Resistance Conferred by Open Stomata in Rice." Molecular Plant-Microbe Interactions® 32, no. 2 (2019): 255–66. http://dx.doi.org/10.1094/mpmi-06-18-0162-r.

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Stomata are leaf pores that regulate gas exchange and water transpiration in response to environmental cues. They also function in innate immunity by limiting pathogen entry through actively closing in so-called stomatal defense. However, roles of stomata in plant disease resistance are not fully elucidated, especially in monocots. Here, we report that non–race specific resistance of the rice abscisic acid-deficient mutant Osaba1 to Xanthomonas oryzae pv. oryzae is due to increased stomatal conductance. Reducing stomatal conductance in the Osaba1 mutant increases its susceptibility to X. oryza

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11

Meinzer, FC, DA Grantz, and B. Smit. "Root Signals Mediate Coordination of Stomatal and Hydraulic Conductance in Growing Sugarcane." Functional Plant Biology 18, no. 4 (1991): 329. http://dx.doi.org/10.1071/pp9910329.

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Root hydraulic conductance and total stomatal conductance on a per plant basis changed in parallel during growth of sugarcane. Changes in root system water and solute transport properties were evaluated to determine the role of changes in root xylem sap composition in this coordination of vapour and liquid phase conductances. Stomatal conductance of excised leaf strips supplied with root exudate declined with increasing leaf area of the exudate donor plants. Leaf strips from plants of different sizes responded similarly to exudate from each donor plant, indicating that there were no inherent d

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12

Lawson, Tracy, and Jack Matthews. "Guard Cell Metabolism and Stomatal Function." Annual Review of Plant Biology 71, no. 1 (2020): 273–302. http://dx.doi.org/10.1146/annurev-arplant-050718-100251.

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The control of gaseous exchange between the leaf and external atmosphere is governed by stomatal conductance ( gs); therefore, stomata play a critical role in photosynthesis and transpiration and overall plant productivity. Stomatal conductance is determined by both anatomical features and behavioral characteristics. Here we review some of the osmoregulatory pathways in guard cell metabolism, genes and signals that determine stomatal function and patterning, and the recent work that explores coordination between gs and carbon assimilation ( A) and the influence of spatial distribution of funct

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13

Büssis, Dirk, Uritza von Groll, Joachim Fisahn, and Thomas Altmann. "Stomatal aperture can compensate altered stomatal density in Arabidopsis thaliana at growth light conditions." Functional Plant Biology 33, no. 11 (2006): 1037. http://dx.doi.org/10.1071/fp06078.

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Stomatal density of transgenic Arabidopsis thaliana plants over-expressing the SDD1 (stomatal density and distribution) gene was reduced to 40% and in the sdd1-1 mutant increased to 300% of the wild type. CO2 assimilation rate and stomatal conductance of over-expressers and the sdd1-1 mutant were unchanged compared with wild types when measured under the light conditions the plants were exposed to during growth. Lower stomatal density was compensated for by increased stomatal aperture and conversely, increased stomatal density was compensated for by reduced stomatal aperture. At high light int

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14

Pezeshki, S. R., and J. L. Chambers. "Stomatal and photosynthetic response of drought-stressed cherrybark oak (Quercusfalcata var. pagodaefolia) and sweet gum (Liquidambarstyraciflua)." Canadian Journal of Forest Research 16, no. 4 (1986): 841–46. http://dx.doi.org/10.1139/x86-148.

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The effects of water stress on stomatal conductance and net photosynthesis of cherrybark oak (Quercusfalcata var. pagodaefolia Ell.) and sweet gum (Liquidamberstyraciflua L.) seedlings were studied under controlled environment conditions during the 1983 growing season. Drought stress induced stomatal closure and significant declines in net photosynthesis for both species. Stomatal conductance declined by as much as 43% in cherrybark oak and 82% in sweet gum compared with predrought levels. Net photosynthetic rates also declined 85% from predrought levels in sweet gum and fell below zero in che

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15

Hernández, María J., Sven Mutke, Fernando Montes, and Pilar Pita. "Early testing for improving growth under water shortage in Eucalyptus globulus Labill." Forest Systems 33, no. 1 (2024): e01. http://dx.doi.org/10.5424/fs/2024331-20868.

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Aim of study: We aimed at identifying differences in the response to water shortage between Eucalyptus globulus clones. Area of study: The greenhouse experiment was performed in SW Spain. Material and methods: Potted plants from six clones were grown in a greenhouse for 53 days under two watering regimes. Two clones were F0 genotypes and the other four were F1 (hybrid) genotypes, including one inbred clone. Differences in stomatal conductance, hydraulic traits, growth and specific leaf area (SLA) were analyzed. Main results: Water shortage decreased SLA, growth in height and

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16

Paoletti, Elena, Nancy E. Grulke, and Rainer Matyssek. "Ozone Amplifies Water Loss from Mature Trees in the Short Term But Decreases It in the Long Term." Forests 11, no. 1 (2019): 46. http://dx.doi.org/10.3390/f11010046.

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We measured whole-tree transpiration of mature Fagus sylvatica and Picea abies trees exposed to ambient and twice-ambient O3 regimes (1xO3 and 2xO3 free-air fumigation). After eight years, mean daily total transpiration did not vary with the O3 regime over the 31 days of our study, even though individual daily values increased with increasing daily O3 peaks in both species. Although the environmental parameters were similar at 1xO3 and 2xO3, the main factors affecting daily transpiration were vapour pressure deficit in 2xO3 spruce and O3 peaks in beech. For a mechanistic explanation, we measur

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17

Goknur, Atilla B., and Theodore W. Tibbitts. "Association of Dark Opening of Stomata with Air Pollution Sensitivity of Irish Potatoes." Journal of the American Society for Horticultural Science 126, no. 1 (2001): 37–43. http://dx.doi.org/10.21273/jashs.126.1.37.

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The magnitude of dark opening of stomata on leaves of Irish potato (Solanum tuberosum L.) was studied to determine if this opening was related to the high sensitivity of these plants to air pollutants. Stomatal opening was studied over diurnal periods both in the field and in controlled environments. In both environments, stomatal conductance decreased rapidly at the initiation of dark to 0.1 cm·s-1 but then increased to 0.2 cm·s-1 over the dark period. However conductance was always less in the dark than in the light (0.3 to 0.9 cm·s-1). During the early part of the dark period, stomatal cond

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18

Lloyd, J., and H. Howie. "Salinity, Stomatal Responses and Whole-Tree Hydraulic Conductivity of Orchard 'Washington Navel' Orange, Citrus sinensis (L.) Osbeck." Functional Plant Biology 16, no. 2 (1989): 169. http://dx.doi.org/10.1071/pp9890169.

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Diurnal patterns in stomatal conductance and bulk water potentials were measured over a 6-month period for spring flush leaves on 24-year-old Washington Navel orange trees that had been irrigated with water containing either 5 mol m-3 NaCl or 20 mol m-3 NaCl for 5 years prior to measurements. During summer and autumn, at early morning measurement times, stomatal conductances of leaves on trees irrigated with 20 mol m-3 were significantly below those on trees irrigated with 5 mol m-3 NaCl. Lower values on high salinity trees were not attributable to more negative water potentials or lower turgo

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19

Kimura, Haruki, Mimi Hashimoto-Sugimoto, Koh Iba, Ichiro Terashima, and Wataru Yamori. "Improved stomatal opening enhances photosynthetic rate and biomass production in fluctuating light." Journal of Experimental Botany 71, no. 7 (2020): 2339–50. http://dx.doi.org/10.1093/jxb/eraa090.

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Abstract It has been reported that stomatal conductance often limits the steady-state photosynthetic rate. On the other hand, the stomatal limitation of photosynthesis in fluctuating light remains largely unknown, although in nature light fluctuates due to changes in sun position, cloud cover, and the overshadowing canopy. In this study, we analysed three mutant lines of Arabidopsis with increased stomatal conductance to examine to what extent stomatal opening limits photosynthesis in fluctuating light. The slac1 (slow anion channel-associated 1) and ost1 (open stomata 1) mutants with stay-ope

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20

Anderegg, William R. L. "Quantifying seasonal and diurnal variation of stomatal behavior in a hydraulic-based stomatal optimization model." Journal of Plant Hydraulics 5 (December 22, 2018): e001. http://dx.doi.org/10.20870/jph.2018.e001.

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Plant responses to drought occur across many time-scales, with stomatal closure typically considered to be a critical short-term response. Recent theories of optimal stomatal conductance linked to plant hydraulic transport have shown promise, but it is not known if stomata update their hydraulic “shadow price” of water use (marginal increase in carbon cost with a marginal drop in water potential) over days, seasons, or in response to recent drought. Here, I estimate the hydraulic shadow price in five species – two semi-arid gymnosperms, one temperate and two tropical angiosperms – at daily tim

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21

Israel, Walter Krystler, Alexander Watson-Lazowski, Zhong-Hua Chen, and Oula Ghannoum. "High intrinsic water use efficiency is underpinned by high stomatal aperture and guard cell potassium flux in C3 and C4 grasses grown at glacial CO2 and low light." Journal of Experimental Botany 73, no. 5 (2021): 1546–65. http://dx.doi.org/10.1093/jxb/erab477.

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Abstract We compared how stomatal morphology and physiology control intrinsic leaf water use efficiency (iWUE) in two C3 and six C4 grasses grown at ambient (400 µmol mol–1) or glacial CO2 (180 µmol mol–1) and high (1000 µmol m–2 s–1) or low light intensity (200 µmol m–2 s–1). C4 grasses tended to have higher iWUE and CO2 assimilation rates, and lower stomatal conductance (gs), operational stomatal aperture (aop), and guard cell K+ influx rate relative to C3 grasses, while stomatal size (SS) and stomatal density (SD) did not vary according to the photosynthetic type. Overall, iWUE and gs depen

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22

Hunt, Lena, Michal Fuksa, Karel Klem, et al. "Barley Genotypes Vary in Stomatal Responsiveness to Light and CO2 Conditions." Plants 10, no. 11 (2021): 2533. http://dx.doi.org/10.3390/plants10112533.

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Changes in stomatal conductance and density allow plants to acclimate to changing environmental conditions. In the present paper, the influence of atmospheric CO2 concentration and light intensity on stomata were investigated for two barley genotypes—Barke and Bojos, differing in their sensitivity to oxidative stress and phenolic acid profiles. A novel approach for stomatal density analysis was used—a pair of convolution neural networks were developed to automatically identify and count stomata on epidermal micrographs. Stomatal density in barley was influenced by genotype, as well as by light

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23

Buckley, Thomas N. "Modeling Stomatal Conductance." Plant Physiology 174, no. 2 (2017): 572–82. http://dx.doi.org/10.1104/pp.16.01772.

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24

A. Baqasi, Laila, Huda A. Qari, Nihal Al-Nahhas, et al. "Effects of Low Concentrations of Ozone (O3) on Metabolic and Physiological Attributes in Wheat (Triticum aestivum L.) Pants." Biomedical and Pharmacology Journal 11, no. 2 (2018): 929–34. http://dx.doi.org/10.13005/bpj/1450.

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Growth, yield, protein content, net photosynthetic rates, stomatal conductance and amino acid profiles were determined in wheat (Triticum aestivum L) plants in response to 50 ppb O3 during the growing season. This concentration is similar to the concentrations of O3 in ambient air. O3 decreased photosynthetic rates (24%) and stomatal conductance (25%), which were reflected in lower growth and yield in terms of number of grains and 100 grain weight. Scanning electron microscopy showed a collapse in the epidermal cells adjacent to stomata that led to stomatal closure and consequently reductions

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25

Passos, Edson Eduardo Melo, and Jorge Vieira Da Silva. "Fonctionnement des stomates de Cocotier (Cocos nucifera) au champ." Canadian Journal of Botany 68, no. 2 (1990): 458–60. http://dx.doi.org/10.1139/b90-059.

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The behavior of coconut (Cocos nucifera L.) stomata was studied under field conditions in adult plants. Hourly determination of relative stomatal opening and of stomatal conductance values revealed that coconut stomata were opened maximally between 0800 and 1600; by the end of this period, the stomata closed rapidly as solar radiation decreased. Changes in temperature and relative humidity of the air did not affect stomatal behavior. The maximum relative stomatal opening occurred at midday, when the water potential of the leaf is at its lowest point, showing that stomatal behavior depends most

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26

Mott, Keith A., and Thomas N. Buckley. "Patchy stomatal conductance: emergent collective behaviour of stomata." Trends in Plant Science 5, no. 6 (2000): 258–62. http://dx.doi.org/10.1016/s1360-1385(00)01648-4.

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27

Santrucek, J., and RF Sage. "Acclimation of Stomatal Conductance to a CO2-Enriched Atmosphere and Elevated Temperature in Chenopodium album." Functional Plant Biology 23, no. 4 (1996): 467. http://dx.doi.org/10.1071/pp9960467.

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Acclimation of stomatal conductance to different CO2 and temperature regimes was determined in Chenopodium album L. plants grown at one of three treatment conditions: 23�C and 350 μmol CO2 mol-1 air; 34�C and 350 μmol mol-1; and 34�C and 750 μmol mol-1. Stomatal conductance (gs) as a function of intercellular CO2 (Ci) was determined for each treatment at 25 and 35�C, and these data were used to estimate gains of the feedback loops linking changes in intercellular CO2 with stomatal conductance and net CO2 assimilation. Growth temperature affected the sensitivity of stomata to measurement temper

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28

Sun, Ruifeng, Juanjuan Ma, Xihuan Sun, Shijian Bai, Lijian Zheng, and Jiachang Guo. "Study on a Stomatal Conductance Model of Grape Leaves in Extremely Arid Areas." Sustainability 15, no. 10 (2023): 8342. http://dx.doi.org/10.3390/su15108342.

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Stomata are essential for regulating the exchange of water and energy between plants and the atmosphere. In the context of climate warming, especially in extremely arid regions, the knowledge of stomatal conductance variation patterns is fundamental to the study of crop evapotranspiration, productivity and drought resistance characteristics. The accurate simulation of stomatal conductance in this region is an important prerequisite for the optimal regulation of the crop growth environment. In this study, a two-year field experiment was carried out in vineyards in an extremely arid region. The

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29

Tang, Zhenmin, and Samuel B. Land. "Photosynthesis and Leaf Water Relations in Four American Sycamore Clones." Forest Science 41, no. 4 (1995): 729–43. http://dx.doi.org/10.1093/forestscience/41.4.729.

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Abstract Photosynthesis, transpiration, stomatal conductance, and xylem pressure potential were studied to examine clonal variation and clone-by-season interactions in rooted cuttings of four sycamore clones (Platanus occidentalis L.). These physiological parameters were measured during June through November of the second and third growing seasons in the field. Stomatal conductance, xylem pressure potential, and photosynthesis were higher in June-July than in August-November. The four clones did not differ significantly in yearly average photosynthetic rates, but clone 11 tended to have higher

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Maroco, João P., João S. Pereira, and M. Manuela Chaves. "Stomatal Responses to Leaf-to-Air Vapour Pressure Deficit in Sahelian Species." Functional Plant Biology 24, no. 3 (1997): 381. http://dx.doi.org/10.1071/pp96062.

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Stomatal response to leaf-to-air vapour pressure deficit (LAVPD) was studied in the annual arid zone C4 grasses Schoenefeldia gracilis, Dactyloctenium aegyptium and Eragrostis tremula and in the C3 species, convolvulus, Ipomoea pes-tigridis and Ipomoea vagans. Stomatal responses to LAVPD were consistent with the drought survival strategies adopted by the different species. In drought resistant species (S. gracilis, I. vagansand I. pes-tigridis) stomatal conductance showed a negative response to increasing LAVPD whereas, in drought escaping species (D. aegyptium and E. tremula), stomatal conduc

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Espinoza, Sergio, Samuel Ortega-Farías, and Luis Ahumada-Orellana. "Characterization of stomatal density and size of different vitis vinifera L. cultivars growing in Mediterranean climate conditions." Ciência e Técnica Vitivinícola 39, no. 1 (2024): 196–208. http://dx.doi.org/10.1051/ctv/ctv2024390114.

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The stomatal traits of 13 red and white grapevine cultivars of Vitis vinifera L. established in a cultivar collection garden in central Chile were characterized in this study. The cultivars examined were ‘Cabernet Franc’, ‘Cabernet Sauvignon’, ‘Carmenere’, ‘Cot’, ‘Grenache’, ‘Merlot’, ‘Mourvedre’, ‘Pinot Noir’, ‘Syrah’, ‘Chardonnay’, ‘Marzanne’, ‘Roussane’, and ‘Sauvignon Blanc’. Transparent nail polish peel prints in four adult leaves per vine were obtained and examined under a light microscope at 10 ×. The number of stomata in 0.196 mm2 was counted, and their length and width were measured u

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Hart, Miranda, E. H. Hogg, and V. J. Lieffers. "Enhanced water relations of residual foliage following defoliation in Populus tremuloides." Canadian Journal of Botany 78, no. 5 (2000): 583–90. http://dx.doi.org/10.1139/b00-032.

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Stomatal conductance and leaf water potential of aspen (Populus tremuloides Michx.) were measured in response to defoliation intensity, both in the field and under controlled conditions. There was evidence of increased stomatal conductance in trees with 50 and 98% defoliation, but no change in leaf water potential. Under controlled conditions, stomatal conductance and rate of photosynthesis were measured under high and low vapour pressure deficits (VPD). Under high VPD, overall stomatal conductance and rates of photosynthesis were greatly reduced. However, in both VPD treatments, there was evi

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Han, Tuo, Qi Feng, Tengfei Yu, Xiaomei Yang, Xiaofang Zhang, and Kuan Li. "Characteristic of Stomatal Conductance and Optimal Stomatal Behaviour in an Arid Oasis of Northwestern China." Sustainability 14, no. 2 (2022): 968. http://dx.doi.org/10.3390/su14020968.

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Stomatal conductance (gs), the process that governs plant carbon uptake and water loss, is fundamental to most Land Surface Models (LSMs). With global change accelerating, more attention should be paid to investigating stomatal behavior, especially in extremely arid areas. In this study, gas exchange measurements and environmental/biological variables observations during growing seasons in 2016 and 2017 were combined to investigate diurnal and seasonal characteristics of gs and the applicability of the optimal stomatal conductance model in a desert oasis vineyard. The results showed that the r

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Buchholcerová, Anna, Peter Fleischer, Dušan Štefánik, Svetlana Bičárová, and Veronika Lukasová. "Specification of Modified Jarvis Model Parameterization for Pinus cembra." Atmosphere 12, no. 11 (2021): 1388. http://dx.doi.org/10.3390/atmos12111388.

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The high ambient ozone concentrations cause impairing effects on vegetation leading to plant injuries. The potential ozone uptake to vegetation through open stomata can be quantified using stomatal conductance measurements under the local environmental conditions. This study compares the ozone stomatal conductance to vegetation obtained with a modified Jarvis formula adopted from the Vegetation Manual of United Nations Economic Commission for Europe, and experimental field measurements’ data. The stomatal conductance was measured by a portable photosynthesis and gas exchange analyzer system Li

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Costa, Marcus Vinicius de Lima, Pedro Antônio de Lima Félis, Kelvin Jean Santos Masselani, Túlio Lopes Marinho Linard, Luis Alberto Bucci, and Willyam de Lima Vieira. "Organization of leaf vascular system and gas exchange in seedlings of Guazuma ulmifolia Lam. in different light conditions." Scientific Electronic Archives 14, no. 7 (2021): 68–73. http://dx.doi.org/10.36560/14720211366.

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In tropical forests, different physiological characteristics of leaves in tree species are evidenced by variations in different incident light conditions. We aim to evaluate gas exchange and organization of leaf vascular system in Guazuma ulmifolia Lam. seedlings under different light conditions. Seedlings were obtained from seeds germinated under greenhouse conditions with controlled environment. Ninety days after germination, seedlings in 8kg pots were transferred to the experimental site to allow acclimatization under sun and shade conditions. The experimental design was completely randomiz

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Susilo, Agung Wahyu, Sobir Sobir, Adinda Wuriandani, and Desta Wirnas. "Seedling performance of cocoa genotypes (Theobroma cacao L.) in Drought Stress Condition." Pelita Perkebunan (a Coffee and Cocoa Research Journal) 35, no. 3 (2019): 167–76. http://dx.doi.org/10.22302/iccri.jur.pelitaperkebunan.v35i3.375.

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Drought stress can affect changes in physiological, morphological, biochemical,and molecular of plant. Plant in drought stress showed slower growthand development than in normal condition. This research aimed to determine the response of cocoa genotypes in seedling phase to drought stress in morphological and stomata character. This research conducted with split-plot design with main plot were water regimes (25% and 100% available water content). Eleven genotypes were used in this research consisted of six genotypes crosses and five genotypes parents. Variables observed were stem diameter, roo

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Iacobelli, Antonio, and J. Harry McCaughey. "Stomatal conductance in a northern temperate deciduous forest: temporal and spatial patterns." Canadian Journal of Forest Research 23, no. 2 (1993): 245–52. http://dx.doi.org/10.1139/x93-033.

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Stomatal conductance measurements were obtained in the summer of 1989 in a deciduous forest near Chalk River, Ontario. Seasonal changes in stomatal conductance of trembling aspen (Populustremuloides Michx.) and white birch (Betulapapyrifera Marsh.) were related to changes in soil water content. Rehydration of water stores in trees following each of the two major rain events observed over the growing season likely influenced the magnitude of stomatal conductance. Diurnal changes in stomatal conductance were found to be related primarily to changes in solar radiation, vapour-pressure deficit, an

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Carter, Gregory A., and Alan H. Teramura. "Nonsummer stomatal conductance for the invasive vines kudzu and Japanese honeysuckle." Canadian Journal of Botany 66, no. 12 (1988): 2392–95. http://dx.doi.org/10.1139/b88-325.

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A field study was conducted in Maryland to estimate nonsummer stomatal conductances on clear days for two invasive woody vine species common to the southeastern United States. Before the first frost in late October, stomatal conductances were similar for kudzu (Pueraria lobata) and Japanese honeysuckle (Lonicera japonica). When minimum predawn air temperature fell to −0.6 °C, kudzu leaves were irreversibly damaged, whereas maximum daily conductance in honeysuckle was unaffected. Maximum conductances in honeysuckle increased to 14 mm s−1 in late November and mid-December, similar to late-spring

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Kangur, Ott, Kathy Steppe, Jeroen D. M. Schreel, Jonas S. von der Crone, and Arne Sellin. "Variation in nocturnal stomatal conductance and development of predawn disequilibrium between soil and leaf water potentials in nine temperate deciduous tree species." Functional Plant Biology 48, no. 5 (2021): 483. http://dx.doi.org/10.1071/fp20091.

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It is widely acknowledged that many plant species can keep stomata open during night. We examined how nocturnal stomatal conductance differs among potted saplings of nine temperate tree species from diverse native habitats in wet and dry soil conditions, and how it affects plant predawn water status. Nocturnal stomatal conductance in dry soil conditions was low in all the species (with a maximum value of 14.6 mmol m–2 s–1); in wet conditions, it was the highest in Populus tremula L., a fast-growing and anisohydric pioneer species, and the lowest in Quercus robur L., a late-successional and iso

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Drake, Paul L., Ray H. Froend, and Peter J. Franks. "Smaller, faster stomata: scaling of stomatal size, rate of response, and stomatal conductance." Journal of Experimental Botany 64, no. 2 (2013): 495–505. http://dx.doi.org/10.1093/jxb/ers347.

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Yuza, Steve C., Art L. Youngman, and John C. Pair. "Leaf Conductance and Xylem Water Potential of Ecotypes and Cultivars of Acer saccharum and A. nigrum." HortScience 31, no. 4 (1996): 649a—649. http://dx.doi.org/10.21273/hortsci.31.4.649a.

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This study examined physical factors and physiological responses of five different ecotypes and cultivars of Acer saccharum and A. nigrum. The objective was to determine variations in leaf conductance and xylem water potential and correlations associated with their natural geographic distribution. Compared were two ecotypes of sugar maple, Caddo and Wichita Mountains, native to Oklahoma with cultivars Green Mountain and Legacy, plus black maple seedlings from Iowa. Measurements taken included leaf conductance, xylem water potential and soil water potential in a replicated block of 15-year-old

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Wang, Tiange, Linna Zheng, Dongliang Xiong, et al. "Stomatal Ratio Showing No Response to Light Intensity in Oryza." Plants 12, no. 1 (2022): 66. http://dx.doi.org/10.3390/plants12010066.

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Stomata control carbon and water exchange between the leaves and the ambient. However, the plasticity responses of stomatal traits to growth conditions are still unclear, especially for monocot leaves. The current study investigated the leaf anatomical traits, stomatal morphological traits on both adaxial and abaxial leaf surfaces, and photosynthetic traits of Oryza leaves developed in two different growth conditions. Substantial variation exists across the Oryza species in leaf anatomy, stomatal traits, photosynthetic rate, and stomatal conductance. The abaxial stomatal density was higher tha

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Li, Ting-Yu, Qi Shi, Hu Sun, Ming Yue, Shi-Bao Zhang, and Wei Huang. "Diurnal Response of Photosystem I to Fluctuating Light Is Affected by Stomatal Conductance." Cells 10, no. 11 (2021): 3128. http://dx.doi.org/10.3390/cells10113128.

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Upon a sudden transition from low to high light, electrons transported from photosystem II (PSII) to PSI should be rapidly consumed by downstream sinks to avoid the over-reduction of PSI. However, the over-reduction of PSI under fluctuating light might be accelerated if primary metabolism is restricted by low stomatal conductance. To test this hypothesis, we measured the effect of diurnal changes in stomatal conductance on photosynthetic regulation under fluctuating light in tomato (Solanum lycopersicum) and common mulberry (Morus alba). Under conditions of high stomatal conductance, we observ

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Lu, Zhenmin, Miguel A. Quiñones, and Eduardo Zeiger. "Temperature dependence of guard cell respiration and stomatal conductance co-segregate in an F2 population of Pima cotton." Functional Plant Biology 27, no. 5 (2000): 457. http://dx.doi.org/10.1071/pp98128.

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In Pima cotton (Gossypium barbadense L.), stomatal conductance shows a strong response to temperature. At high temperature (40˚C), the stomatal conductance of greenhouse- and growth chamber-grown leaves is three and four times higher than that measured at lower temperature (25&ordm;C), respectively. The segregation of stom-atal conductance observed in an F2 population obtained from a cross between a primitive cotton (B368) and a modern Pima line (Pima S-6) increased substantially with temperature in both light and darkness. Furthermore, F2 segregants with high stomatal conductance at high

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RAHMAN, H. U. "Genetic analysis of stomatal conductance in upland cotton (Gossypium hirsutum L.) under contrasting temperature regimes." Journal of Agricultural Science 143, no. 2-3 (2005): 161–68. http://dx.doi.org/10.1017/s0021859605005186.

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Stomatal conductance plays an important role in the heat avoidance mechanism of crop plants. Stomatal conductance in cotton is genetically determined and has been shown to be associated with heat resistance and higher yields. Experiments were carried out with six generations (parental, F1, F2 and back crosses) of three upland cotton crosses under heat-stressed and non-stressed greenhouse and field regimes, to understand the inheritance pattern of stomatal conductance as affected by contrasting temperature regimes. The results revealed significant variation for stomatal conductance due to gener

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Ramos-Vázquez, Alfredo, and Víctor L. Barradas. "El effecto del microambiente en la conductividad estomática de Buddleia cordata H. B. K., en la Reserva del Pedregal de San Ángel." Botanical Sciences, no. 62 (May 20, 2017): 63. http://dx.doi.org/10.17129/botsci.1551.

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Precipitation seasonality and substratum in Pedregal de San Angel can play a key role on plant water status. Therefore, stomatal conductance (g), water potential (Ψ h), photosynthetically photon flux density (Q), air temperature (Ta) and leaf-air vapour pressure difference (VPD), were measured on leaves of Buddleia cordata H.B.K., because its perennial character and its dominance in the Pedregal. These measurements were carried out during the wet and dry seasons in the Pedregal which is a plant community developing in a lava substratum. The highest values of stomatal conductance were registere

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Young, Donald R. "Crown architecture, light interception, and stomatal conductance patterns for sympatric deciduous and evergreen species in a forest understory." Canadian Journal of Botany 63, no. 12 (1985): 2425–29. http://dx.doi.org/10.1139/b85-346.

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Within a mixed deciduous forest in central Virginia, daily patterns of light interception and stomatal conductance were related to crown architecture for the deciduous Asimina triloba and the evergreen Ilex opaca. For A. triloba, branches were up to 54% longer, the bifurcation ratio was 15% lower, branch internode lengths were 15% greater, and leaf angles were closer to the horizontal plane (9 vs. 22°) than for I. opaca, possibly contributing to a greater percentage of sunlit leaves for A. triloba at 1100 and 1400 (22.4 vs. 10.0 and 30.0 vs. 10.1%, respectively). Maximum stomatal conductances

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48

Gándara, José, Silvia Ross, Gastón Quero, et al. "Differential water-use efficiency and growth among Eucalyptus grandis hybrids under two different rainfall conditions." Forest Systems 29, no. 2 (2020): e006. http://dx.doi.org/10.5424/fs/2020292-16011.

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Aim of the study: To analyze the course of leaf water status, water-use efficiency and growth in Eucalyptus grandis and hybrids throughout seasons with different rainfall.Area of study: The study was conducted in northern Uruguay.Methods: A randomized block trial was established containing E. grandis (ABH17), E. grandis × Eucalyptus camaldulensis (GC172), E. grandis × Eucalyptus tereticornis (GT529), and E. grandis × Eucalyptus urophylla (GU08). Predawn leaf water potential (Ψpd) and midday leaf water potential (Ψmd) were measured every six weeks from the age of 16 months, throughout two growi

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Henson, IE, CR Jensen, and NC Turner. "Leaf Gas Exchange and Water Relations of Lupins and Wheat. III. Abscisic Acid and Drought-Induced Stomatal Closure." Functional Plant Biology 16, no. 5 (1989): 429. http://dx.doi.org/10.1071/pp9890429.

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Changes in the content of endogenous abscisic acid (ABA) were followed in glasshouse experiments during stomatal closure induced by drought in leaves of lupin (Lupinus cosentinii Guss. cv. Eregulla) and wheat (Triticum aestivum L. cvv. Gamenya and Warigal), species which differ in stomatal sensitivity to changes in leaf water potential. Increases in bulk leaf ABA concentration were closely correlated with decreases in leaf conductance in both species. In lupin, substantial increases in ABA and decreases in conductance occurred over a very narrow range of leaf water potential. ABA concentration

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Robinson, SP, WJR Grant, and BR Loveys. "Stomatal Limitation of Photosynthesis in Abscisic Acid-Treated and in Water-Stressed Leaves Measured at Elevated CO2." Functional Plant Biology 15, no. 4 (1988): 495. http://dx.doi.org/10.1071/pp9880495.

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Feeding 10-5M (�)-abscisic acid (ABA) via the petioles of detached leaves of apricot (Prunus armeniaca) or sunflower (Helianthus annuus) decreased stomatal conductance and assimilation rate but not the calculated intercellular CO2 concentration (Ci) suggesting non-stomatal as well as stomatal inhibition of photosynthesis. Evidence for non-stomatal inhibition was not observed in spinach (Spinacia oleracea). There was no significant decrease in rates of electron transport nor ribulosebisphosphate carboxylase (Rubisco) activity in intact chloroplasts isolated from ABA-treated sunflower leaves. Ox

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