Abscisic acid is involved in the response of Arabidopsis mutant sad2-1 to ultraviolet-B radiation by enhancing antioxidant enzymes
作者： M. Chen , W.H. Zhang , Z.W. Lv , S.L. Zhang , J. Hidema
DOI: 10.1016/J.SAJB.2012.11.006
关键词:
摘要: In this study, we examined the physiological mechanisms in responses of Arabidopsis mutant sensitive to ABA and drought 2–1 (sad2-1) ultraviolet-B radiation (UVB) treatments. The effects enhanced UVB on plant growth, concentration UV-absorbing compounds, photosynthesis, endogenous antioxidant system were investigated two types thaliana — sad2-1 wild type (WT, C24). Results indicated that, under radiation, showed a higher resistance than C24 through accumulating more UV absorption materials, maintaining bio-membrane balance photosynthesis efficiency, enhancing content activating ROS scavenging enzymes. It can be postulated that might participate complex signal crosstalk increasing tolerance UVB.
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