Characterization and identification of Weissella species isolated from Kobresia littledalei growing in alpine meadows

doi:10.11686/cyxb20140132

Abstract

Abstract: To isolate and screen optimal lactic acid bacteria (LAB) in alpine zones,conventional identification methods and 16S rRNA sequence analysis were used to identify isolated lactic acid bacteria attached to Kobresia littledalei in the Qinghai-Tibetan Plateau. A total number of 17 lactic acid bacterial strains were isolated in this study,of which 6 strains were identified as Weissella confusa and 11 strains as Weissella cibaria. The isolated strains grew well at 4℃. From 17 strains,five were able to grow at pH 3. With the exception of one strain,the other W. confusa strains could utilize arabinose for fermentation,and all W. cibaria could ferment galactose. The characteristics of Weissella in alpine zones included low temperature resistance,high acid resistance and utilization of a wide variety of carbon sources during fermentation.

CLC Number:

S812.3

YANG Yang,SHI Chao,GUO Xu-sheng. Characterization and identification of Weissella species isolated from Kobresia littledalei growing in alpine meadows[J]. Acta Prataculturae Sinica, 2014, 23(1): 266-275.

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