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| DOI: | 10.21273/JASHS.137.4.221 |
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| Web URL(s): | https://journals.ashs.org/jashs/view/journals/jashs/137/4/article-p221.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/137/4/article-p221.xml
Last checked: 04/30/2020
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Yu, Jingjin;
Du, Hongmei;
Xu, Ming;
Huang, Bingru |
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| Author Affiliation: | Yu and Xu: Department of Ecology, Evolution and Natural Resources; Huang: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ; Yu: Horticulture College of Nanjing Agricultural University, Nanjing; Du: School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China; Xu: Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, Beijing, P.R. China |
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| Title: | Metabolic responses to heat stress under elevated atmospheric C02 concentration in a cool-season grass species |
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| Column Name: | Environmental stress phyisiology
Other records with the "Environmental stress phyisiology" Column
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| Source: | Journal of the American Society for HorticulturalScience. Vol. 137, No. 4, July 2012, p. 221-228. |
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| Publishing Information: | Geneva, New York: The American Society for Horticultural Science |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Amino acids; Carbohydrates; Carbon dioxide; Electrolyte leakage; Festuca arundinacea; Growth factors; Heat adaptation; Heat resistance; Heat stress; Metabolites; Organic acids; Quality evaluation; Shoot growth; Turfgrass quality
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| Cultivar Names: | Rembrandt |
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| Abstract/Contents: | "Heat is a major factor limiting growth of C3 grass species. Elevated CO2 may mitigate the adverse effects of heat stress or enhance heat tolerance. The objective of this study was to determine metabolic changes associated with improvement of heat tolerance by elevated atmospheric CO2 concentration in tall fescue (Festuca arundinacea). Plants (cv. Rembrandt) were exposed to ambient day/night temperature (25/20 °C) or heat stress (35/30 °C) and ambient CO2 concentration (400 ± 10 μmol·mol-1) or double ambient CO2 concentration (800 ± 10 μmol·mol-1) in growth chambers. Turf quality (TQ), shoot growth rate, and leaf electrolyte leakage results demonstrated that heat stress at ambient CO2 concentration inhibits turf growth and reduces cell membrane stability, whereas heat-stressed plants under elevated CO2 concentration exhibit improved TQ, shoot growth rate, and membrane stability. Plants exposed to heat stress under elevated CO2 exhibited a significantly greater amount of several organic acids (shikimic acid, malonic acid, threonic acid, glyceric acid, galactaric acid, and citric acid), amino acids (serine, valine, and 5-oxoproline), and carbohydrates (sucrose and maltose) compared with heat-stressed plants at ambient CO2. The increased production or maintenance of metabolites with important biological functions such as those involved in photosynthesis, respiration, and protein metabolism could play a role in elevated CO2 mitigation of heat stress damage. Therefore, elevated CO2 conditions may contribute to improved heat stress tolerance as exhibited by better TQ and shoot growth of heat-stressed plants. Practices to harness the power of CO2 may be incorporated into turfgrass management for plant adaptation to increasing temperatures, particularly during summer months." |
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| Language: | English |
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| References: | 52 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yu, J., H. Du, M. Xu, and B. Huang. 2012. Metabolic responses to heat stress under elevated atmospheric C02 concentration in a cool-season grass species. J. Am. Soc. Hortic. Sci. 137(4):p. 221-228. |
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| DOI: 10.21273/JASHS.137.4.221 |
| Web URL(s):
https://journals.ashs.org/jashs/view/journals/jashs/137/4/article-p221.xml
Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/137/4/article-p221.xml
Last checked: 04/30/2020
Requires: PDF Reader |
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MSU catalog number: b2221587a |
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