%0 Journal Article
%T Changes in antioxidative defense systems of Aphanothece halophytica in response to salt stresses<br>盐度胁迫下盐生隐杆藻抗氧化防御系统的变化
%A ZHOU Ya-wei
%A YAN Ting-ting
%A LI Peng-fu
%A LIU Zhi-li
%A <br>周亚维
%A 焉婷婷
%A 李朋富
%A 刘志礼
%J 海洋科学
%D 2010
%I 
%X Aphanothece halophytica is a unique halotolerant cyanobacterium, which can grow even in saturated NaCl. In this study, we investigated the effect of salt stress on the levels of malondialdehyde, two non-enzymatic antioxidants and four antioxidant enzymes in A. halophytica. As compared to control salinity condition, an exposure to hyposaline or hypersaline conditions inhibited the growth of A. halophytica. With the increase of salt stresses, malondialdehyde content, levels of non-enzymatic antioxidants, and antioxidant enzymes increased continuously with the exception of catalase. These results suggest that the levels of non-enzymatic antioxidants and antioxidant enzymes in A. halophytica are increased to counteract the enhanced oxidative stress under salt stresses, and the antioxidant defense system may play an important role in the tolerance mechanism of salt stress.
%K Aphanothece halophytica
%K malondialdehyde
%K antioxidative Enzyme
%K non-enzymatic antioxidant
%K salt stress<br>盐生隐杆藻(Aphanothece
%K )
%K 丙二醛
%K 抗氧化酶
%K 非酶抗氧化剂
%K 盐度胁迫
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=2D9C75573FA3E416&jid=DFE7B94EB76B8F26135C9890832CEF6A&aid=AE39A903476A170A790660BA622D6B86&yid=140ECF96957D60B2&vid=339D79302DF62549&iid=9CF7A0430CBB2DFD&sid=340AC2BF8E7AB4FD&eid=6209D9E8050195F5&journal_id=1000-3096&journal_name=海洋科学&referenced_num=0&reference_num=0