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阳光紫外辐射对羊栖菜人工幼苗生长和光合电子传递速率的影响
引用本文:赵越剑,吴红艳,邹定辉,高坤山.阳光紫外辐射对羊栖菜人工幼苗生长和光合电子传递速率的影响[J].海洋通报,2009,28(6).
作者姓名:赵越剑  吴红艳  邹定辉  高坤山
作者单位:1. 汕头大学,海洋生物研究所,广东,汕头,515063
2. 厦门大学,近海海洋环境科学国家重点实验室,福建,厦门,361005
基金项目:国家高技术计划海洋“863”项目(No.2006AA10A416);;国家自然科学基金重点项目(No.90411018)资助
摘    要:为探讨经济褐藻羊栖菜人工幼苗对阳光紫外辐射变化的响应,在全波段阳光辐射省(PAB,280~700nm)、去除UV-B辐射(PA,320~700nm)和光合有效辐射PAR(P,400~700nm)三种辐射处理及不同辐射水平下培养羊栖菜幼苗,并测定了其生长与光合作用的变化。结果表明,无论在紫外辐射(UVR)存在情况下(PA,PAB)还是滤除UVR(PAR)时,高辐射水平条件下(55%),羊栖菜幼苗都具有较高的生长速率,而低辐射水平下羊栖菜的生长速率较低。在不同辐射处理之间,随着辐射水平的增高,UVR的抑制效应逐渐突显。UVR降低羊栖菜幼苗的光合电子传递速率。

关 键 词:羊栖菜  阳光紫外辐射  生长  光合作用  

Effects of solar UVR on the growth and photosynthetic electron transfer rate in artificially raised young seedlings of Hizikia fusiformis
ZHAO Yue-jian,WU Hong-yan,ZOU Ding-hui,GAO Kun-shan.Effects of solar UVR on the growth and photosynthetic electron transfer rate in artificially raised young seedlings of Hizikia fusiformis[J].Marine Science Bulletin,2009,28(6).
Authors:ZHAO Yue-jian  WU Hong-yan  ZOU Ding-hui  GAO Kun-shan
Institution:1. Marine Biology Institute;Shantou University;Shantou 515063;China;2. State Key Laboratory of Marine Environmental Science;Xiamen University;Xiamen 361005;China
Abstract:Effects of solar ultraviolet radiation (UVR) on the growth and photosynthesis of artificially raised young seedlings of Hizikia fusiformis were investigated while exposed to full spectrum solar radiation (PAB,280-700 nm),solar radiation depleted of UV-B (PA,320-700 nm) and solar radiation deprived of total UVR (P,400-700 nm) in order to understand its responses to changes in solar UVR. It was found that the young seedlings showed higher relative growth rate at 55% of solar irradiance level,regardless of the...
Keywords:Hizikia fusiformis  solar ultraviolet radiation  growth  photosynthesis  
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