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Published on: October 24, 2016
Variation of xylanosomal subunit composition of Streptomyces olivaceoviridis by nitrogen sources
Wei Deng1, Zheng-Qiang Jiang, Li-Te Li
1College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing, 100083, China.
Abstract:
Besides affecting the xylanases production, different nitrogen sources present in the media also caused changes in the xylanosomal subunit composition of Streptomyces olivaceoviridis E-86. Four xylanosome fractions, purified from the culture supernatant of S. olivaceoviridis E-86 grown on different nitrogen sources, exhibited high specificity towards different xylans and were composed of different subunits. Thus, S. olivaceoviridis E-86 regulates the expression of xylanase activity and varies the xylanosome composition according to the nitrogen sources possibly through the action of the secreted proteases.

