期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2014
卷号：3
期号：2
页码：9191
出版社：S&S Publications
摘要：Cyanobacteria has evolved the capacity to synthesize, mount up and metabolize scytonemin aphotoprotective pigment as a part of an overall tactic to taper the unswerving and oblique destructive effects ofenvironmental ultraviolet radiation (UVR) due to the deterioration of ozone layer attributable to the release of pollutioncontaining the chemicals chlorine and bromine. Scytonemin is an indole phenolic pigment found in the sheath of manycyanobacteria having a unique dimeric structure, ecological importance and novel pharmaceutical activity haveenthused substantial pursuit in its biosynthesis. This study includes the screening of scytonemin from 46 studiedcyanobacterial strains out of which 23 showed the presence of scytonemin. Aulosira fertilissima showed the maximumscytonemin. The effect of environmental factors, including Light intensity, photoperiod, UV-light was studied onscytonemin synthesis of A. fertilissima. A remarkable change in scytonemin synthesis was observed under UV-lightstress. Scytonemin increased under all stress conditions but it increased maximally under UV-light stress.
