Full TGIF Record # 214591
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DOI:10.21273/JASHS.138.1.24
Web URL(s):https://journals.ashs.org/jashs/view/journals/jashs/138/1/article-p24.xml
    Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/138/1/article-p24.xml
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Publication Type:
i
Refereed
Author(s):Yang, Zhimin; Xu, Lixin; Yu, Jingjin; DaCosta, Michelle; Huang, Bingru
Author Affiliation:Yang and Yu: Horticulture College of Nanjing Agricultural University, Nanjing; Xu: Turfgrass Institute, Beijing Forestry University, Beijing, P. R. China; Huang, Yang, Xu, and Yu: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ; DaCosta: Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA
Title:Changes in carbohydrate metabolism in two Kentucky bluegrass cultivars during drought stress and recovery
Section:Environmental stress physiology
Other records with the "Environmental stress physiology" Section
Source:Journal of The American Society for Horticultural Science. Vol. 138, No. 1, January 2013, p. 24-30.
Publishing Information:Alexandria, Virginia: American Society for Horticultural Science
# of Pages:7
Keywords:TIC Keywords: Cultivar evaluation; Cultural methods; Drought resistance; Drought stress; Electrolyte leakage; Metabolism; Poa pratensis; Relative water content; Sucrose; Turfgrass quality
Cultivar Names:Midnight; Brilliant
Abstract/Contents:"Carbohydrate metabolism is important for plant adaptation to drought stress. The objective of this study was to examine major forms of carbohydrates associated with superior drought tolerance and post-drought recovery in kentucky bluegrass (Poa pratensis) by comparing responses of different forms of carbohydrates with drought stress and re-watering in two cultivars contrasting in drought tolerance. Plants of drought-tolerant 'Midnight' and drought-sensitive 'Brilliant' were maintained well watered or subjected to drought stress for 10 days by withholding irrigation, and drought-stressed plants were re-watered for 3 days. Physiological analysis (turf quality, relative water content, and electrolyte leakage) confirmed the genetic variability of the two cultivars in drought tolerance. The two cultivars exhibited differential responses to drought stress and re-watering for the content of water-soluble sugars (sucrose, fructose, and glucose) and storage carbohydrates (starch and fructan), and 'Midnight' maintained higher sucrose content at 10 days of drought stress and more fructan at 3 days of re-watering. The greater accumulation of sucrose in 'Midnight' under drought stress corresponded with higher activities of two sucrose-synthesizing enzymes (sucrose phosphate synthase and sucrose synthase) but was not related to the sucrose-degrading enzyme activity (acid invertase). These results suggested that increased sucrose accumulation resulting from the maintenance of active sucrose synthesis could be associated with superior turf performance during drought stress, whereas increased fructan accumulation could contribute to rapid re-growth and post-drought recovery on re-watering in kentucky bluegrass."
Language:English
References:46
See Also:Other items relating to: Breeding for Drought
Note:Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Yang, Z., L. Xu, J. Yu, M. DaCosta, and B. Huang. 2013. Changes in carbohydrate metabolism in two Kentucky bluegrass cultivars during drought stress and recovery. J. Am. Soc. Hortic. Sci. 138(1):p. 24-30.
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DOI: 10.21273/JASHS.138.1.24
Web URL(s):
https://journals.ashs.org/jashs/view/journals/jashs/138/1/article-p24.xml
    Last checked: 04/30/2020
https://journals.ashs.org/jashs/downloadpdf/journals/jashs/138/1/article-p24.xml
    Last checked: 04/30/2020
    Requires: PDF Reader
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