Effect of enhanced solar UV-B radiation (280-320nm) on chloroplast polypeptide profile of some leguminous plants at different growing seasons

Abstract

UV-B radiation (280-320nm) is harmful to living organism and has detrimental effects on plants growth, development photosynthetic activity and chloroplast protein expression. In this work we examined response of some legume plants like Black gram and Cluster bean(V. mungo and C. tetragonoloba L) to enhanced UV-B radiation at two different growing seasons (summer and monsoon).we analyzed the impact of UV-B radiation chloroplast polypeptide profile in two seasons. The Cluster bean plants sensitive to enhanced UV-B radiation, which appeared in the decreases chloroplast polypeptide expression reduced gradually from low to high molecular protein from the early stage to later stage. Such reduction was very high in monsoon season than summer season. Where as in Black gram UVB radiation promote the polypeptide expression gradually from early to later stage in both the season.