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| DOI: | 10.1016/j.envexpbot.2017.01.008 |
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| Web URL(s): | http://www.sciencedirect.com/science/article/pii/S0098847217300217
Last checked: 04/06/2017
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Wang, Xiuyun;
Huang, Bingru |
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| Author Affiliation: | Wang: College of Agro-grassland Science, Nanjing Agricultural University, Nanjing, People's Republic of China; Huang: Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ |
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| Title: | Lipid- and calcium-signaling regulation of HsfA2c-mediated heat tolerance in tall fescue |
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| Source: | Environmental and Experimental Botany. Vol. 136, April 2017, p. 59-67. |
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| Publishing Information: | Elsevier |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Calcium; Festuca arundinacea; Foliar feeding; Heat shock proteins; Heat stress; Phosphatidic acids; Transcription factors
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| Abstract/Contents: | "Heat stress transcription factor A2c (HsfA2c) is known for its positive roles in conferring heat tolerance. The objectives of this study were to examine the effectiveness of selected signaling molecules for improving heat tolerance of a cool-season grass species, tall fescue (Festuca arundinacea Schreb.) and to determine the signal transduction pathways regulated by those molecules through the activation of HsfA2c and heat shock proteins (HSP). Foliar application of phosphatidic acid (PA), calcium chloride (CaCl2,) hydrogen peroxide (H2O2), salicylic acid (SA) and trans-zeatin riboside (t-ZR) all activated expression of HsfA2c and several HSP genes, and enhanced tall fescue tolerance to prolonged periods of heat stress (38/33 °C, day/night temperature). Exogenous application of all the molecules increased photosynthetic activities and membrane stability of tall fescue exposed to heat stress, with PA (25 μM) and CaCl2 (10 μM) having more pronounced effects than other treatments. PA- and Ca2+-mediated heat tolerance was associated with the regulation of HsfA2c all HSPs (Hsp18) during short-term heat stress and with large HSPs (Hsp70 and Hsp90) during prolonged heat stress, involving genes in PA-synthesis and catabolism, and the downstream genes of the Ca2+ signaling pathways. These results suggest the transcriptional regulation of HsfA2c-mediated heat tolerance involving lipid and calcium signaling pathways in tall fescue." |
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| Language: | English |
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| References: | 46 |
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| Note: | Pictures, color
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wang, X., and B. Huang. 2017. Lipid- and calcium-signaling regulation of HsfA2c-mediated heat tolerance in tall fescue. Environ. Exp. Bot. 136:p. 59-67. |
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| DOI: 10.1016/j.envexpbot.2017.01.008 |
| Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0098847217300217
Last checked: 04/06/2017
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b4885055 |
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