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| Web URL(s): | https://scisoc.confex.com/crops/2019am/meetingapp.cgi/Paper/122653
Last checked: 01/31/2020
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): | Lu, Jefferson;
Tharayil, Nishanth;
DaCosta, Michelle |
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| Author Affiliation: | Lu: Plant Biology, University of Massachusetts-Amherst, Amherst, MA; Tharayil: Department of Plant & Environmental Sciences, Clemson University, Clemson, SC; DaCosta: Stockbridge, University of Massachusetts-Amherst, Amherst, MA |
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| Title: | Effects of synthetic priming compounds on turfgrass primary and secondary metabolism under drought stress |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turf ecology and management oral III: Culture, stress & rhizosphere ecology
Other records with the "Turf ecology and management oral III: Culture, stress & rhizosphere ecology" Section
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| Meeting Info.: | San Antonio, Texas: November 10-13, 2019 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2019, p. 122653. |
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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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| Keywords: | TIC Keywords: Acibenzolar-S-methyl; Agrostis stolonifera; Cultivar evaluation; Drought resistance; Drought stress; Horticultural oils; Metabolism; Plant activators
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| Cultivar Names: | Penncross; 007 |
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| Abstract/Contents: | "Turfgrass systems are challenged by biotic and abiotic stresses that affect their growth and function. In the summer months cool season grasses are effected by periods of heat and drought that impact overall turfgrass health and can result in death or damage from secondary stresses. Efforts to mitigate damage caused by these stresses have mainly relied on cultural practices and use of adapted cultivars or species. In recent years, an additional tool to improve turf health during stress is through the application of synthetic priming compounds, also known as plant health activators. Two common priming agents include petroleum-derived spray oils (PDSO) and acibenzolar-S-methyl (ASM), which are reported to activate induced systemic resistance and systemic acquired resistance, respectively. In turfgrasses there is some evidence that these compounds function by altering metabolic pathways. Adaptation to drought involves changes in both primary and secondary metabolic pathways including photosynthesis, respiration, and the biosynthesis of osmolytes and antioxidants. The objectives of this study were to determine how these priming compounds regulates shifts in metabolism to improve drought tolerance and to compare these impacts between two creeping bentgrass cultivars varying in drought tolerance. The experiment consisted of 12 treatments, including two irrigation levels, two cultivars 'Penncross' and '007', and three priming treatments. Plants were pretreated three times with either PDSO or ASM prior to reducing irrigation, and two additional treatments were made during reduced irrigation period. Samples for metabolic analysis were taken at 3 time points corresponding to different stages of priming and stress exposure. When treated with ASM 'Penncross' showed 20 significant primary metabolic features changed in response to priming or stress whereas '007' showed only 1. Only secondary metabolites of 'Penncross' treated with ASM were examined over the three time points, which we identified 764 unique compounds which responded to either ASM or irrigation." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"310-8" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lu, J., N. Tharayil, and M. DaCosta. 2019. Effects of synthetic priming compounds on turfgrass primary and secondary metabolism under drought stress. Agron. Abr. p. 122653. |
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| Web URL(s):
https://scisoc.confex.com/crops/2019am/meetingapp.cgi/Paper/122653
Last checked: 01/31/2020
Requires: JavaScript |
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