紫外线照射对球形蓝绿藻的影响：生存、光合作用和光复活。
The effects of ultraviolet irradiation on a coccoid blue-green alga: survival, photosynthesis, and photoreactivation.
机构信息
University of Texas Marine Science Institute, Port Aransas, Texas 78373.
出版信息
Plant Physiol. 1968 Oct;43(10):1689-95. doi: 10.1104/pp.43.10.1689.
Abstract
The effects of UV irradiation (254 mmu) on a coccoid blue-green alga Agmenellum quadruplicatum, Strain PR-6, have been examined in terms of the survival curve and measurement of short time photosynthetic rates. From study of survival evidence has been found for a strong photoreactivation centered near 430 mmu. Measurements of photosynthetic rate suggest that there is a correlation between decay of photosynthesis and survival after UV exposure. The UV induced decay in photosynthetic activity is reversed by the identical photoreactivation conditions that increase the survival level. The photosynthetic data are interpreted as demonstrating a photoreactivation of photosynthesis in blue-green algae.
摘要
已从存活曲线和短时间光合作用率测量的角度，研究了 254nm 紫外线照射（254mmu）对四孢藻 Agmenellum quadruplicatum，PR-6 株的影响。从存活证据的研究中发现，在 430nmu 附近有一个强烈的光复活中心。光合作用率的测量结果表明，在紫外线照射后，光合作用的衰减与存活之间存在相关性。相同的光复活条件可以逆转光合作用活性的紫外线诱导衰减，从而提高存活水平。光合作用数据的解释表明，在蓝藻中存在光合作用的光复活。
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本文引用的文献
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Action spectra for photoreactivation of ultraviolet-irradiated Escherichia coli and Streptomyces griseus.紫外线照射的大肠杆菌和灰色链霉菌光复活作用的作用光谱。
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