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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112499
Last checked: 11/19/2018
Requires: JavaScript |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Zhang, Xunzhong;
Goatley, James M.;
Ervin, Erik |
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| Author Affiliation: | Zhang and Goatley: School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA; Ervin: University of Delaware, Newark, DE |
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| Title: | Cytokinin, abscisic acid, and auxin alteration is associated with Kentucky bluegrass tolerance to drought |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass science - II poster
Other records with the "Turfgrass science - II poster" Section
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| Meeting Info.: | Baltimore, Maryland: November 4-7, 2018 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2018, p. 112499. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Plant hormones play an important role in plant adaptation to abiotic stress, but hormonal responses of cool-season turfgrass species to drought stress are not well documented. This study investigated hormonal responses and photochemical efficiency of Kentucky bluegrass (KBG, Poa pratensis L.) under drought stress and examined if drought stress induces hormone alterations that are associated with stress tolerance. The grass was grown in a growth chamber for six weeks and then subjected to drought stress [40%-50% evapotranspiration (ET) replacement)] for 28 d. Drought stress caused lipid peroxidation and cell membrane damage, resulting in declines in photosynthetic rate (Pn), chlorophyll content, and visual quality of KBG. Drought stress increased levels of leaf abscisic acid (ABA), reduced trans-zeatin riboside (ZR), isopentenyl adenosine (iPA), and indole-3-acetic acid (IAA). At the end of experiment (d 28), turf quality, Pn, and stomatal conductance were negatively correlated with ABA and ABA/(ZR+iPA) ratio, but positively correlated with ZR, iPA, IAA. The results of this study suggest drought stress may induce alteration in hormonal balance, resulting in gas exchange inhibition and oxidative damage of chlorophyll and photosynthetic function in KBG." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"332"
"Poster Number: 1223" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, X., J. M. Goatley, and E. Ervin. 2018. Cytokinin, abscisic acid, and auxin alteration is associated with Kentucky bluegrass tolerance to drought. Agron. Abr. p. 112499. |
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Last checked: 11/19/2018
Requires: JavaScript |
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