UV-B induced stress responses in three rice cultivars
UV-B induced stress responses in three rice cultivars
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DOI：
10.1007/s10535-010-0102-3
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发表时间：
2010-09-01
影响因子：
1.5
通讯作者：
Nedeva, D.
中科院分区：
文献类型：
--
作者：
Fedina, I.;Hidema, J.;Nedeva, D.
三种水稻对UV-B的响应对具有不同光解酶活性的品种(Sasanishiki、Norin 1和Surjamkhi)进行了研究。二氧化碳同化数据支持Sasanishiki对UV-B的敏感性低于Norin 1和Surjamkhi。UV-B辐射显著降低了莲子中Rubisco蛋白的含量，而对Sasanishiki则没有影响。UV-B处理对光系统(PS)1和PS 2的光化学活性影响不大。UV-B处理后，叶片的过氧化氢含量和抗氧化酶、过氧化氢酶(CAT)、过氧化物酶(POX)、超氧化物歧化酶(SOD)活性均有所提高。UV-B辐射对Sasanishiki的过氧化氢酶(CAT)和过氧化物酶(POX)同工酶活性的影响大于Norin 1号和Surjamkhi。
UV-B responses of three rice (Oryza sativa L.) cultivars (Sasanishiki, Norin 1 and Surjamkhi) with different photolyase activity were investigated. Carbon dioxide assimilation data support that Sasanishiki was less sensitive to UV-B than Norin 1 and Surjamkhi. UV-B radiation sharply decreased the content of Rubisco protein in Surjamkhi and has no effect in Sasanishiki. The photochemical activities of photosystem (PS) 1 and PS 2 was slightly affected by UV-B treatment. The content of H2O2 and the activities of antioxidant enzymes, catalase (CAT), peroxides (POX) and superoxide dismutase (SOD) were enhanced after UV-B treatment. The activities of CAT and POX isoenzymes in Sasanishiki were more enhanced by UV-B radiation than those in Norin 1 and Surjamkhi.