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  • WJPPS APRIL ISSUE PUBLISHED
  • APRIL 2019 Issue has been successfully launched on 1 April 2019

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  • Its our Pleasure to Inform you that WJPPS Impact Factor has been increased from 6.647 to 7.421 due to high quality Publication at International Level

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Abstract

DIFFERENTIAL EFFECT OF UV-B RADIATION ON PHOTOSYNTHETIC ELECTRON TRANSPORT OF THE CYANOBACTERIUM SPIRULINA PLATENSIS

Praveena B.* and Murthy S.D.S.

ABSTRACT

In the present study an attempt has been made to study the effect of Ultraviolet-B (UV-B) radiation (0.7-2.8 Wm-2) for different time intervals of (15-60 min) on the electron transport activities (Whole chain electron transport activity, photosystem II catalysed electron transport activity, photosystem I catalysed electron transport activity) and lipid peroxidation in the cyanobacterium, Spirulina platensis. To know the inhibition in the electron transport activity various types of donor - acceptor systems are used. Our results clearly demonstrated that there is an inhibition in whole chain electron transport activity, photosystem II is more susceptible to UV-B radiation than that of photosystem I and also alterations in the membrane is cleared by the lipid peroxidation.

Keywords: Electron transport, Photosystem, Lipid peroxidation, Spirulina platensis.


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