文章摘要
袁荣荣,何文辉,张泽华,宋海燕.水温及其波动对海膜生长和生理生化的影响[J].上海海洋大学学报,2016,25(5):684-691.
YUAN Rongrong,HE Wenhui,ZHANG Zehua,SONG Haiyan.Effects of constant and fluctuating water temperature on growth and physiological and biochemical components of Halymenia sinesis[J].Journal of Shanghai Ocean University,2016,25(5):684-691.
水温及其波动对海膜生长和生理生化的影响
Effects of constant and fluctuating water temperature on growth and physiological and biochemical components of Halymenia sinesis
投稿时间:2016-03-14  修订日期:2016-05-16
DOI:10.12024/jsou.20160301686
中文关键词: 海膜  恒温  变温  色素  POD  SOD  MDA
英文关键词: Halymenia sinesis  constant temperature  fluctuating temperature  pigment  POD  SOD  MDA
基金项目:国家水体污染控制与治理科技重大项目(2014ZX07101-012)
作者单位E-mail
袁荣荣 上海海洋大学 水产与生命学院, 上海 201306  
何文辉 上海海洋大学 水产与生命学院, 上海 201306 whhe@shou.edu.cn 
张泽华 上海海洋大学 水产与生命学院, 上海 201306  
宋海燕 上海海洋大学 水产与生命学院, 上海 201306  
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中文摘要:
      研究了在不同水温(17、21、25、29、33 ℃)及不同变温幅度[(25±0)、(25±2)、(25±3)、(25±4)、(25±5) ℃]下海膜的生长及光合色素、POD、SOD、MDA随时间的动态变化。研究结果表明:(1)海膜在17~29 ℃范围内都能生长,在25 ℃以及±2 ℃变温下有最大的日相对生长率。当温度高于29 ℃时,藻体变软颜色变淡,高于33 ℃藻体局部变白溃烂。(2)海膜在低于25 ℃条件下生长,其POD、SOD和MDA值变化不明显;而29 ℃时,海膜的POD、SOD和MDA值随时间升高很快,33 ℃时海膜的POD、SOD和MDA值先升高,从第5天开始下降,可能是由于藻体受到胁迫较严重,发白溃烂,细胞受损。(3)与25 ℃恒温相比,±4和±5 ℃变温幅度下海膜的POD、SOD和MDA值整体呈上升趋势,且±5 ℃﹥±4 ℃,±2、±3 ℃变温幅度下海膜的POD、SOD和MDA值变化幅度不大,(25±2) ℃﹥(25±3) ℃﹥25 ℃,说明海膜对小范围的温度波动有一定适应性,变温幅度越大,对海膜的胁迫越大。
英文摘要:
      We studied the effects of different water temperature (17, 21, 25, 29, 33 ℃) and the fluctuating temperature (25±0, 25±2, 25±3, 25±4, 25±5 ℃) on the growth,pigment,POD,SOD and MDA of Halymenia sinesis. The results show:(1) the suitable temperature for H. sinesis growth was 17-29 ℃ with 25 ℃ and (±2, ±3 ℃) temperature fluctuation as the optimum growth temperature. When the temperature was above 29 ℃, the H. sinesis become soft and light color; above 33 ℃, the H. sinesis rotted locally.(2) The POD, SOD and MDA were stable when the temperature was below 25 ℃ and above 17 ℃.But they increased soon at 29 ℃or rise at first and decline from the fifth day at 33 ℃,which indicates that the H. sinesis suffered serious stress, so its cells damaged and decayed.(3) Compared with 25 ℃, the POD, SOD and MDA changes are stable in (±2, ±3 ℃) temperature range, and (25±3 ℃)﹥(25±2 ℃)﹥25 ℃.In addition, the change is severe in (±4, ±5 ℃) temperature range, and(25±5 ℃)﹥(25±4 ℃). To sum up, the H. sinesis can adapt to small temperature fluctuation. The greater the temperature difference, the greater the damage to H. sinesis.
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