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| DOI: | 10.1016/j.envexpbot.2017.05.014 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0098847217301181
Last checked: 07/13/2017
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wang, Jinyu;
Juliani, Hector Rodolfo;
Jespersen, David;
Huang, Bingru |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University, New Brunswick, NJ |
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| Title: | Differential profiles of membrane proteins, fatty acids, and sterols associated with genetic variations in heat tolerance for a perennial grass species, hard fescue (Festuca tachyphylla) |
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| Source: | Environmental and Experimental Botany. Vol. 140, August 2017, p. 65-75. |
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| Publishing Information: | Elsevier |
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| # of Pages: | 11 |
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| Related Web URL: | http://ars.els-cdn.com/content/image/1-s2.0-S0098847217301181-mmc1_lrg.jpg
Last checked: 07/13/2017
Access conditions: Item is within a limited-access website
Notes: Supplementary graphs |
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| Keywords: | TIC Keywords: Cell membranes; Comparisons; Cool season turfgrasses; Differential assessment; Fatty acids; Festuca ovina subsp. duriuscula; Festuca brevipila; Genetic variability; Heat resistance; Heat stress; Proteins; Sterols
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| Cultivar Names: | Predator; Reliant IV |
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| Abstract/Contents: | "Cellular membrane composition controls membrane stability, affecting plant tolerance to abiotic stress. The objectives of this study were to examine differential changes in membrane constituents (sterol, fatty acid and membrane protein) in response to heat stress for a cool-season perennial grass species, hard fescue (Festuca trachyphylla) and identify major membrane constituents associated with the genetic variations in heat tolerance for two varieties contrasting in heat tolerance. Plants of heat-tolerant 'Reliant IV' and heat-sensitive 'Predator' were exposed to heat stress at 38/33° C (day/night) in growth chambers. Under heat stress, 'Reliant IV' showed better turf quality, greater membrane stability and higher photochemical efficiency compared to 'Predator'. Leaf membranes of 'Reliant IV' showed greater increase of ethyl sterols (fucosterol, stigmasterol, sitosterol and avenasterol), and two fatty acids [oleic acid (18:1) and linoleic acid (18:2)] under heat stress compared to those for 'Predator'. Several membrane proteins were less down-regulated or more up-regulated by heat stress in 'Reliant IV' than in 'Predator', including down-regulated proteins involved in electron transport of photosynthesis (ATP synthase subunits and cytochrome b6-f complex iron-sulfur subunit), signaling (lectin-domain containing receptor kinase A4.2), and protein modification (S-acyltransferase), and up-regulated proteins involved in carboxylation in photosynthesis (Rubisco activase beta form) and stress defense (disease resistance protein 1). These differentially accumulated sterols, fatty acids, and proteins in cellular membranes could contribute to the differential level of heat tolerance between the two varieties of hard fescues. These compounds could be used as biomarkers to select for heat-tolerant germplasm in hard fescues." |
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| Language: | English |
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| References: | 80 |
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| Note: | Flowcharts
Pictures, color & b/w
Figures
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, J., H. R. Juliani, D. Jespersen, and B. Huang. 2017. Differential profiles of membrane proteins, fatty acids, and sterols associated with genetic variations in heat tolerance for a perennial grass species, hard fescue (Festuca tachyphylla). Environ. Exp. Bot. 140:p. 65-75. |
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| DOI: 10.1016/j.envexpbot.2017.05.014 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0098847217301181
Last checked: 07/13/2017
Access conditions: Item is within a limited-access website |
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MSU catalog number: b4885055 |
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