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| DOI: | 10.21273/JASHS.140.1.19 |
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| Web URL(s): | https://journals.ashs.org/jashs/view/journals/jashs/140/1/article-p19.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/140/1/article-p19.xml
Last checked: 04/30/2020
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Chen, Yajun;
Yu, Jingjin;
Huang, Bingru |
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| Author Affiliation: | Chen: Horticulture College of Northeast Agricultural University, Harbin; Yu: College of Agro-Grassland Science, Nanjing Agricultural University, Nanjing, China; Huang: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ |
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| Title: | Effects of elevated CO2 concentration on water relations and photosynthetic responses to drought stress and recovery during rewatering in tall fescue |
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| Source: | Journal of The American Society for Horticultural Science. Vol. 140, No. 1, January 2015, p. 19-26. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Carbon dioxide; Drought resistance; Festuca arundinacea; Photosynthesis; Plant recovery; Relative water content; Water availability; Water relations
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| Abstract/Contents: | "Water availability for plant growth is becoming increasingly limited, whereas rising atmospheric carbon dioxide concentration may have interactive effects with drought stress. The objectives of this study were to determine whether elevated CO2 would mitigate drought-induced water deficit and photosynthesis inhibition and enhance recovery from drought damages on rewatering and to determine whether the mitigating effects during drought stress and the recovery in photosynthesis during rewatering by elevated CO2 were the result of the regulation of stomatal movement or carboxylation activities in tall fescue (Festuca arundinacea Schreb. cv. Rembrandt). Plants were grown in controlled-environment chambers with ambient CO2 concentration (400 μmol·mol-1) or elevated CO2 concentration (800 μmol·mol-1) and maintained well watered (control) or subjected to drought stress and subsequently rewatered. Elevated CO2 reduced stomatal conductance (gS) and transpiration rate of leaves during both drought stress and rewatering. Osmotic adjustment and soluble sugar content were enhanced by elevated CO2. Elevated CO2 enhanced net photosynthetic rate with lower gS but higher Rubisco and Rubisco activase activities during both drought and rewatering. The results demonstrated that elevated CO2 could improve leaf hydration status and photosynthesis during both drought stress and rewatering, and the recovery in photosynthesis from drought damages on rewatering was mainly the result of the elimination of metabolic limitation from drought damages associated with carboxylation enzyme activities." |
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| Language: | English |
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| References: | 50 |
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| Note: | Pictures, color
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Chen, Y., J. Yu, and B. Huang. 2015. Effects of elevated CO2 concentration on water relations and photosynthetic responses to drought stress and recovery during rewatering in tall fescue. J. Am. Soc. Hortic. Sci. 140(1):p. 19-26. |
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| DOI: 10.21273/JASHS.140.1.19 |
| Web URL(s):
https://journals.ashs.org/jashs/view/journals/jashs/140/1/article-p19.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/140/1/article-p19.xml
Last checked: 04/30/2020
Requires: PDF Reader |
| 
MSU catalog number: b2221587a |
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