Proteomic analysis of Spirogyra varians mutant with high starch content and growth rate induced by gamma irradiation
2013
Yoon, Minchul | Choi, Jong-il | Kim, Gwang Hoon | Kim, Dong Ho | Park, Don-Hee
This study was conducted to develop a high-efficiency strain of Spirogyra varians for the production of biomass by radiation breeding. The characteristics of wild-type and mutant S. varians were analyzed through phenomenological and proteomic observations. The results of our phenomenological observations of the S. varians mutant demonstrated increases in growth rate and content of chlorophyll a, b, and a + b; in particular, a significant threefold increase was observed in starch accumulation. Proteomic analysis to investigate the differences in expression between wild-type and mutant proteins identified 18 proteins with significantly different expressions. From the literature review, it was confirmed that the up-regulated proteins were mainly involved in photosynthesis, carbohydrate biosynthesis, and energy metabolism. These results suggest the possibility of algae development by radiation breeding for the production of biofuel.
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