Full TGIF Record # 317145
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/133663
    Last checked: 04/01/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Rossi, Stephanie; Huang, Bingru
Author Affiliation:Rossi: Plant Biology and Pathology, Rutgers University, New Brunswick, NJ; Huang: Plant Biology, Rutgers University, New Brunswick, NJ
Title:Improvement of heat tolerance in creeping bentgrass by sitosterol involving regulation of antioxidant metabolism
Section:Turfgrass physiology, molecular biology, and genetics poster (includes student competition)
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C05 turfgrass science
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Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 133663.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Cool-season turfgrasses, such as creeping bentgrass (Agrostis stolonifera L.) are adversely affected by prolonged periods of heat stress and experience loss of yield and performance resulting from premature leaf senescence. The objectives of this study included determining whether exogenous application of sitosterol, an organic membrane-stabilizing compound, could enhance heat tolerance in creeping bentgrass and to understand the manners in which sitosterol may affect antioxidant metabolism. Mature creeping bentgrass plants were placed under heat stress (35/30 Ā°C, day/night) or optimal (22/18 Ā°C, day/night) temperature conditions for a duration of 28 d within climate-controlled growth chambers and were foliar-treated on a weekly basis with 400 Ī¼M sitosterol. Plants treated with sitosterol had significantly higher turf quality and chlorophyll content than untreated controls at 21 and 28 d of heat stress, while EL was significantly lower at those dates. Additionally, malondialdehyde content was significantly lower in treated plants at 21 and 28 d of heat stress. The activities of four antioxidants, superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), and ascorbate peroxidase (APX) were significantly increased in response to sitosterol treatment from 14-28 d of heat stress. These findings indicate that application of sitosterol may improve heat tolerance in plants under heat stress mainly by decreasing lipid peroxidation of membranes and promoting antioxidant metabolism."
Note:This item is an abstract only!
"Poster #1251"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rossi, S., and B. Huang. 2021. Improvement of heat tolerance in creeping bentgrass by sitosterol involving regulation of antioxidant metabolism. Agron. Abr. p. 133663.
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    Last checked: 04/01/2022
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