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| Web URL(s): | https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/112552
Last checked: 11/21/2018
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): | Katuwal, Krishna;
Xiao, Bo;
Jespersen, David |
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| Author Affiliation: | Katuwal: University of Georgia-Griffin, Griffin, GA; Xiao: College of Horticulture and Gardening, Yangtze University, Jingzhou, China; Jespersen: University of Georgia, Griffin, GA |
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| Title: | Osmotic adjustment as a common pathway to tolerate both drought and salt induced osmotic stress in seashore paspalum |
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| Section: | C02 crop physiology and metabolism
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C-2 graduate student poster competition
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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. 112552. |
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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: | "Seashore paspalum (Paspalum vaginatum) is a warm season grass species which tolerates multiple abiotic stresses including high salinity stress. Salinity and drought stresses are two major constraints to turfgrass production that cause severe damage each year. Both stresses induce an osmotic stress and inhibit plant water uptake. Plants might use common responsive mechanisms to tolerate both salt and drought induced osmotic stress. The objective of this study is to understand the common responsive mechanisms of seashore paspalum to drought and salt induced osmotic stress. Individual tiller of seashore paspalum was grown in ½ strength Hoagland's nutrient solution within a growth chamber. Three different treatments, salt stress with addition of NaCl, osmotic stress with addition of Polyethylene glycol and control with no external addition in Hoagland's solution, were applied. Both salt and osmotic stress treatments had equal osmotic potential of - 0.4 MPa. Results showed greater reduction in relative water content and chlorophyll fluorescence of osmotic stressed plants compared to salt stressed ones. Leaf and root osmotic potentials increased in both salt and osmotic stress treatments compared to control. Osmotic adjustments were 66 and 43% in roots and leaves of osmotic stressed plants and 80 and 51% in roots and leaves of salt stressed plants compared to control plants, respectively. Sodium content was higher in both roots and leaves of salt stress treatment while potassium content was higher in root and leaves of osmotic stress treatment. Higher contents of these inorganic ions in stress treatments indicated their roles in osmotic adjustment of plants to survive stressful conditions." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"113"
"Poster Number: 1208" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Katuwal, K., B. Xiao, and D. Jespersen. 2018. Osmotic adjustment as a common pathway to tolerate both drought and salt induced osmotic stress in seashore paspalum. Agron. Abr. p. 112552. |
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Last checked: 11/21/2018
Requires: JavaScript |
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