Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 82, Issue -, Pages 218-228Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2014.06.006
Keywords
Bermudagrass (Cynodon dactylon (L). Pers.); Natural variation; Drought stress; Proteomic Differentially expressed protein
Categories
Funding
- the Hundred Talents Program
- Knowledge Innovative Key Program of Chinese Academy of Sciences [54Y154761001076, 29Y32963100263, 55Y45544600544]
- Youth Innovation Promotion Association of Chinese Academy of Sciences [29Y42937100437]
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Drought (water-deficit) stress is a serious environmental problem in plant growth and cultivation. As one of widely cultivated warm-season turfgrass, bermudagrass (Cynodon dactylon (L). Pers.) exhibits drastic natural variation in the drought stress resistance in leaves and stems of different varieties. In this study, proteomic analysis was performed to identify drought-responsive proteins in both leaves and stems of two bermudagrass varieties contrasting in drought stress resistance, including drought sensitive variety (Yukon) and drought tolerant variety (Tifgreen). Through comparative proteomic analysis, 39 proteins with significantly changed abundance were identified, including 3 commonly increased and 2 decreased proteins by drought stress in leaves and stems of Yukon and Tifgreen varieties, 2 differentially regulated proteins in leaves and stems of two varieties after drought treatment, 23 proteins increased by drought stress in Yukon variety and constitutively expressed in Tifgreen variety, and other 3 differentially expressed proteins under control and drought stress conditions. Among them, proteins involved in photosynthesis (PS), glycolysis, N-metabolism, tricarboxylicacid (TCA) and redox pathways were largely enriched, which might be contributed to the natural variation of drought resistance between Yukon and Tifgreen varieties. These studies provide new insights to understand the molecular mechanism underlying bermudagrass response to drought stress. (C) 2014 Elsevier Masson SAS. All rights reserved.
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