Differential photosynthetic responses of marine planktonic and benthic diatoms to ultraviolet radiation under various temperature regimes
Differential photosynthetic responses of marine planktonic and benthic diatoms to ultraviolet radiation under various temperature regimes
复制标题
不同温度条件下海洋浮游和底栖硅藻对紫外线辐射的差异光合反应
DOI：
10.5194/bg-14-5029-2017
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发表时间：
2017-11
期刊：
影响因子：
4.9
通讯作者：
John Beardall
中科院分区：
文献类型：
--
作者：
Yaping Wu;Furong Yue;Juntian Xu;John Beardall
抽象。研究了两种硅藻对紫外线辐射的生理响应。两个物种表现出最高的敏感性，在相对较低的温度下，紫外辐射，而它们的抑制在适度增加的温度。在本研究中应用的最高温度下，底栖硅藻菱形藻对紫外线辐射的敏感性最低，而对浮游种，与生长温度下相比进一步增加。这些光化学反应与细胞内的修复和损伤过程的值有关;在次适温度下观察到亚丝藻的损伤率较高，修复率较低，而对于菱形藻，在所施加的温度范围内，修复率增加，损伤率稳定。研究结果表明，微藻对紫外辐射的响应与其生态位环境有关，周期性的极端温度暴露促进了底栖物种对高温和紫外辐射组合的抵抗能力。
Abstract. We studied the photophysiological responses to ultraviolet radiation (UVR) of two diatoms, isolated from different environmental niches. Both species showed the highest sensitivity to UV radiation under relatively low temperature, while they were less inhibited under moderately increased temperature. Under the highest temperature applied in this study, the benthic diatom Nitzschia sp. showed minimal sensitivity to UV radiation, while inhibition of the planktonic species, Skeletonema sp., increased further compared with that at the growth temperature. These photochemical responses were linked to values for the repair and damage processes within the cell; higher damage rates and lower repair rates were observed for Skeletonema sp. under suboptimal temperature, while for Nitzschia sp., repair rates increased and damage rates were stable within the applied temperature range. Our results suggested that the response of the microalgae to UV radiation correlated with their niche environments, the periodic exposure to extreme temperatures promoting the resistance of the benthic species to the combination of high temperature and UV radiation.
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影响因子：
2.5
作者：
LEVASSEUR, M;THERRIAULT, JC;LEGENDRE, L
通讯作者：
LEGENDRE, L
影响因子：
11
作者：
Barnett, Alexandre;Meleder, Vona;Lavaud, Johann
通讯作者：
Lavaud, Johann
影响因子：
3.5
作者：
K. Nitta;N. Suzuki;Daisuke Honma;Y. Kaneko;Hitoshi Nakamoto
通讯作者：
K. Nitta;N. Suzuki;Daisuke Honma;Y. Kaneko;Hitoshi Nakamoto
影响因子：
4.5
作者：
Lavaud, Johann;Strzepek, Robert F.;Kroth, Peter G.
通讯作者：
Kroth, Peter G.
DOI：
10.1016/0198-0149(88)90075-1
发表时间：
1988-06
期刊：
--
影响因子：
--
作者：
T. Villareal
通讯作者：
T. Villareal