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光照对噬藻体AS-1附着于集胞藻的影响。

Effect of light on the attachment of cyanophage AS-1 to Anacystis nidulans.

作者信息

Cséke C S, Farkas G L

出版信息

J Bacteriol. 1979 Jan;137(1):667-9. doi: 10.1128/jb.137.1.667-669.1979.

Abstract

The effect of illumination on the extent and kinetics of the adsorption of cyanophage AS-1 to the blue-green alga (cyanobacterium) Anacystis nidulans was studied by using 32P-labeled phage. The initial rate of adsorption was not significantly affected by light. However, at Na+ levels used ordinarily to culture the alga ([Na+] = 11.7 mM), the total amount of phage adsorbed was doubled in the illuminated cultures, as compared with the dark-grown ones, over a wide range of multiplicities of infection (0.05 to 20). Upon a 10-fold increase in Na+ concentration in the medium ([Na+] = 0.11 M), the dark adsorption of the phage increased to the level of light adsorption found in low Na+ medium. The effects on phage adsorption of high Na+ concentration and light were not additive.

摘要

利用³²P标记的噬菌体,研究了光照对噬藻体AS - 1吸附蓝绿藻(蓝细菌)集胞藻的程度和动力学的影响。吸附的初始速率不受光照的显著影响。然而,在通常用于培养藻类的Na⁺水平([Na⁺]=11.7 mM)下,在广泛的感染复数范围(0.05至20)内,与黑暗培养的相比,光照培养中吸附的噬菌体总量增加了一倍。当培养基中Na⁺浓度增加10倍([Na⁺]=0.11 M)时,噬菌体的黑暗吸附增加到低Na⁺培养基中发现的光照吸附水平。高Na⁺浓度和光照对噬菌体吸附的影响不是相加的。

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