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| Web URL(s): | https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/142745
Last checked: 01/25/2023
Requires: JavaScript; HTML5
https://turf.rutgers.edu/wp-content/uploads/2023/03/symposium-2023.pdf#page=41
Last checked: 08/4/2023
Requires: PDF Reader
Notes: Item is within a single large file, Proceedings of the 32nd Annual Rutgers Turfgrass Symposium Reprint |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Rossi, Stephanie;
Huang, Bingru |
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| Author Affiliation: | Rossi: Presenting Author and Rutgers University; Huang: Rutgers University |
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| Title: | Morphactin-mediated amelioration of heat-induced leaf senescence associated with alterations in chlorophyll metabolism in creeping bentgrass |
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| Section: | Turfgrass Physiology, Molecular Biology, Microbiome, and Genetics Poster (includes student competition)
Other records with the "Turfgrass Physiology, Molecular Biology, Microbiome, and Genetics Poster (includes student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Baltimore, Maryland: November 6-9, 2022 |
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| Source: | ASA, CSSA, SSSA International Annual Meeting. 2022, p. 142745. |
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| Publishing Information: | [Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America] |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Heat stress is a major abiotic stress that hinders the growth and performance of cool-season turfgrasses, such as creeping bentgrass (Agrostis stolonifera), which experiences premature leaf senescence when exposure to high temperatures is prolonged. Morphactins are plant growth regulators that have been utilized as foliar treatments for the control of leaf senescence, but their effects under heat stress and in cool-season turfgrasses are not yet understood. The objectives of this study were to determine whether application of chlorflurenol-methyl (CM), a morphactin with senescence-inhibiting properties, can control leaf senescence in creeping bentgrass under heat stress and to examine the regulatory effects that CM may have on chlorophyll metabolism. Mature creeping bentgrass plants were subjected to heat stress (35/30 °C, day/night) or non-stress control (22/18 °C, day/night) temperatures for a duration of 25 d in climate-controlled growth chambers and were foliar-treated with 10 µM CM or water only every 7 d. Under heat stress, plants treated with CM had enhanced turf quality at 25 d, while chlorophyll content was significantly enhanced from 14 through 25 d of heat stress. Activity of the chlorophyll synthesis enzyme, porphobilinogen deaminase, was significantly higher in CM-treated plants from 21 through 25 d of heat stress, while activities of the chlorophyll degradation enzymes, chlorophyllase and chlorophyll-degrading peroxidase, were significantly lower from 14 through 25 d of heat stress. The activity of pheophytinase, another chlorophyll-degrading enzyme, was significantly lower in CM-treated plants at 7, 21, and 25 d of heat stress. The results of this study suggest that foliar application of CM inhibits heat-induced leaf senescence by suppressing chlorophyll degradation and enhancing chlorophyll synthesis." |
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| Language: | English |
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| References: | 0 |
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| Note: | Reprint appears in Proceedings of the Thirty-Second Annual Rutgers Turfgrass Symposium, March 16 2023, p. 42
This item is an abstract only!
"372" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rossi, S., and B. Huang. 2022. Morphactin-mediated amelioration of heat-induced leaf senescence associated with alterations in chlorophyll metabolism in creeping bentgrass. Agron. Abr. p. 142745. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/142745
Last checked: 01/25/2023
Requires: JavaScript; HTML5
https://turf.rutgers.edu/wp-content/uploads/2023/03/symposium-2023.pdf#page=41
Last checked: 08/4/2023
Requires: PDF Reader
Notes: Item is within a single large file, Proceedings of the 32nd Annual Rutgers Turfgrass Symposium Reprint |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
