scholarly journals Pre-conditioning the epigenetic response to high vapor pressure deficit increases the drought tolerance ofArabidopsis thaliana

2013 ◽  
Vol 8 (10) ◽  
pp. e25974 ◽  
Author(s):  
Penny J Tricker ◽  
Carlos M Rodríguez López ◽  
P Hadley ◽  
C Wagstaff ◽  
Mike J Wilkinson
Keyword(s):  
Drought Tolerance ◽  
Vapor Pressure ◽  
Vapor Pressure Deficit ◽  
High Vapor Pressure ◽  
Ofarabidopsis Thaliana ◽  
High Vapor

scholarly journals Mucilage Polysaccharide Composition and Exudation in Maize From Contrasting Climatic Regions

2020 ◽  
Vol 11 ◽  
Author(s):  
Meisam Nazari ◽  
Sophie Riebeling ◽  
Callum C. Banfield ◽  
Asegidew Akale ◽  
Margherita Crosta ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Vapor Pressure Deficit ◽  
Genetic Material ◽  
Root Tips ◽  
High Vapor Pressure ◽  
Climatic Regions ◽  
Randomized Field Experiment ◽  
Neutral Sugars ◽  
High Vapor ◽  
Polysaccharide Composition

Mucilage, a gelatinous substance comprising mostly polysaccharides, is exuded by maize nodal and underground root tips. Although mucilage provides several benefits for rhizosphere functions, studies on the variation in mucilage amounts and its polysaccharide composition between genotypes are still lacking. In this study, eight maize (Zea mays L.) genotypes from different globally distributed agroecological zones were grown under identical abiotic conditions in a randomized field experiment. Mucilage exudation amount, neutral sugars and uronic acids were quantified. Galactose (∼39–42%), fucose (∼22–30%), mannose (∼11–14%), and arabinose (∼8–11%) were the major neutral sugars in nodal root mucilage. Xylose (∼1–4%), and glucose (∼1–4%) occurred only in minor proportions. Glucuronic acid (∼3–5%) was the only uronic acid detected. The polysaccharide composition differed significantly between maize genotypes. Mucilage exudation was 135 and 125% higher in the Indian (900 M Gold) and Kenyan (DH 02) genotypes than in the central European genotypes, respectively. Mucilage exudation was positively associated with the vapor pressure deficit of the genotypes’ agroecological zone. The results indicate that selection for environments with high vapor pressure deficit may favor higher mucilage exudation, possibly because mucilage can delay the onset of hydraulic failure during periods of high vapor pressure deficit. Genotypes from semi-arid climates might offer sources of genetic material for beneficial mucilage traits.

High vapor pressure deficit drives salt-stress-induced rice yield losses in India

2015 ◽  
Vol 21 (4) ◽  
pp. 1668-1678 ◽  
Author(s):  
Jesse Tack ◽  
Rakesh K. Singh ◽  
Lawton L. Nalley ◽  
Basavaraj C. Viraktamath ◽  
Saraswathipura L. Krishnamurthy ◽  
...  
Keyword(s):  
Salt Stress ◽  
Vapor Pressure ◽  
Vapor Pressure Deficit ◽  
Rice Yield ◽  
Yield Losses ◽  
High Vapor Pressure ◽  
High Vapor

Limited-transpiration response to high vapor pressure deficit in crop species

Plant Science ◽  
2017 ◽  
Vol 260 ◽  
pp. 109-118 ◽  
Author(s):  
Thomas R. Sinclair ◽  
Jyostna Devi ◽  
Avat Shekoofa ◽  
Sunita Choudhary ◽  
Walid Sadok ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Vapor Pressure Deficit ◽  
Crop Species ◽  
High Vapor Pressure ◽  
High Vapor

scholarly journals Measurement of transpiration restriction under high vapor pressure deficit for sorghum mapping population parents

2019 ◽  
Vol 24 (1) ◽  
pp. 74-85 ◽  
Author(s):  
Gunasekaran Karthika ◽  
Jana Kholova ◽  
Seeyedmajid Alimagham ◽  
Meenakshi Ganesan ◽  
Keerthi Chadalavada ◽  
...  
Keyword(s):  
Vapor Pressure ◽  
Vapor Pressure Deficit ◽  
Mapping Population ◽  
High Vapor Pressure ◽  
High Vapor

High vapor pressure deficit constrains GPP and the light response of NEE at a Southern Hemisphere bog

2015 ◽  
Vol 203 ◽  
pp. 54-63 ◽  
Author(s):  
J.P. Goodrich ◽  
D.I. Campbell ◽  
M.J. Clearwater ◽  
S. Rutledge ◽  
L.A. Schipper
Keyword(s):  
Vapor Pressure ◽  
Southern Hemisphere ◽  
Vapor Pressure Deficit ◽  
Light Response ◽  
High Vapor Pressure ◽  
High Vapor

Variation Among Maize Hybrids in Response to High Vapor Pressure Deficit at High Temperatures

Crop Science ◽  
2016 ◽  
Vol 56 (1) ◽  
pp. 392-396 ◽  
Author(s):  
Avat Shekoofa ◽  
Thomas R. Sinclair ◽  
Carlos D. Messina ◽  
Mark Cooper
Keyword(s):  
Vapor Pressure ◽  
High Temperatures ◽  
Vapor Pressure Deficit ◽  
High Vapor Pressure ◽  
Maize Hybrids ◽  
High Vapor

scholarly journals Genome‐wide miRNAs profiles of pearl millet under contrasting high vapor pressure deficit reveal their functional roles in drought stress adaptations

2021 ◽  
Author(s):  
Sudhakar Reddy Palakolanu ◽  
Saurabh Gupta ◽  
Richa K. Yeshvekar ◽  
Navajeet Chakravartty ◽  
Sivasakthi Kaliamoorthy ◽  
...  
Keyword(s):  
Drought Stress ◽  
Vapor Pressure ◽  
Pearl Millet ◽  
Vapor Pressure Deficit ◽  
High Vapor Pressure ◽  
Functional Roles ◽  
Genome Wide ◽  
High Vapor

scholarly journals High Plant Density of Cucumber (Cucumis sativus L.) Seedlings Mitigates Inhibition of Photosynthesis Resulting from High Vapor-pressure Deficit

HortScience ◽  
2009 ◽  
Vol 44 (6) ◽  
pp. 1796-1799 ◽  
Author(s):  
Toshio Shibuya ◽  
Akihito Sugimoto ◽  
Yoshiaki Kitaya ◽  
Makoto Kiyota
Keyword(s):  
Vapor Pressure ◽  
Cucumis Sativus ◽  
Plant Community ◽  
Vapor Pressure Deficit ◽  
Plant Density ◽  
Leaf Surface ◽  
Area Index ◽  
High Vapor Pressure ◽  
High Plant Density ◽  
High Vapor

To evaluate the effects of plant density on gas exchanges under water stress resulting from high vapor-pressure deficit (VPD), we measured net photosynthetic rate (Pn), transpiration rate, and leaf conductance (gl) of cucumber (Cucumis sativus L.) seedlings before and after raising the VPD at different plant densities. Measurements were conducted continuously using a chamber and weighing method. Five, nine, or 12 seedlings with leaf area index (LAI) of 0.39, 0.73, and 1.10, respectively, were placed in the assimilation chamber. The average VPD in the chamber was raised from 1.1 to 3.7 kPa 30 min after the starting measurement. The Pn and gl decreased after raising the VPD above the plant community from 1.1 to 3.7 kPa. The VPD near the leaf surface (measured with 3-mm diameter humidity sensors) decreased with increasing LAI of the plant community, whereas average VPD in the whole chamber did not change with LAI. We noted significant negative correlations between the VPD near the leaf surface and Pn and gl. These results indicate that higher plant density mitigates the inhibition of photosynthesis resulting from high VPD by maintaining a lower VPD near the leaf surface with the development of a thicker boundary layer above the canopy.

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