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Rhodotorula mucilaginosa BPT1 can form arthrospore in response to cold-temperature

Journal of Coastal Life Medicine 2014年第2期2卷 141-145页

作者： Sahay Sanjay Abdul Mazid Khan Majid Butt tekram sahu Ravinder S Rana Deepak Chouhan Kamlesh Ranjan Burhan Hamid Government Science and Commerce College BenazirBhopalIndia

Objective:To study carbon and nitrogen utilization pattern and arthrospore formation in a psychrotolerant yeast isolate Rhodotorula mucilaginosa(***)***:Growth of the yeast on minimal synthetic medium supplemented with various carbon and nitrogen compounds as sole carbon or nitrogen source has been *** physico-chemical parameters such as pH,restricted oxygen supply,temperatures,media composition and presence of methionine were tested to examine their effect on arthrospore formation by this known opportunistic ***:The psychrotolerant isolate BPT1 identified on the basis of D1/D2 domain of large rDNA sequence characteristics as *** showed some deviation in carbon and nitrogen utilization patterns from those of other strains of *** in the CBS data ***,the isolate produced sub-surface hyphal rays around its colony at lower temperatures(4℃and 20℃)on PDA medium;the ray was found to be linearly arranged *** arthrospore was not produced in liquid medium,or in presence of methionine or under micro-aerobic condition or at higher ***:The investigation showed a novel feature *** was formed by this yeast isolate under specific set of *** results reiterated that only physiological and morphological characteristics were not sufficient to identify a *** ability of *** to form arthrospores seems to be an adaptive feature in response to extreme environmental condition,and represents adaptive ability having something to do with its ubiquity.

关键词： Rhodotorula mucilaginosa Psychrotolerance Sub-surface hyphal ray Arthrospore

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