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Vegetos

Journal: Vegetos- An International Journal of Plant Research

Article DOI :
Year :2011, Volume : 24, Issue :1
First page : (120) Last page : (122)
Print ISSN : 0970-4078. Online ISSN : 2229-4473.


RESEARCH ARTICLE
A SOCIETY FOR PLANT RESEARCH PUBLICATION

Photoinhibition Induced Alterations in the Photosynthetic Electron Transport Activities of the Wheat Primary Leaves

Reddy H. Hanumantha, kumar B. Praveen1, Murthy S.D.S.*

Department of Chemistry and Biochemistry, Government Science College, Bangalore-Karnataka, India
1Department of Biochemistry, S.V. University, Tirupati-517502, Andhra Pradesh, India

*Corresponding author sdsmurthy@rediffmail.com

This article describes about the multiple effects of high light intensity on photosynthetic electron transport activities in wheat thylakoid membranes. High light (305–615 Wm−2) affects preferentially photosynthetic electron transport depending on the nature of applied intensity. Between two photosystems, photosystem II is more susceptible as compared to photosystem I. The possible reason for the inhibition in photosystem II catatalysed electron transport activity is the alteration of light harvesting complex of photosystem II as evidenced from the electron transport measurements at different illuminating conditions.




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