Characterization of fungal microbial diversity in Tibetan sheep, Tibetan gazelle and Tibetan antelope in the Qiangtang region of Tibet.

IF 1.5 4区 生物学 Q4 MYCOLOGY Mycoscience Pub Date : 2022-01-01 DOI:10.47371/mycosci.2022.05.004
Zhenda Shang, Zhankun Tan, Qinghui Kong, Peng Shang, Honghui Wang, Wangjie Zhaxi, Ciren Zhaxi, Suozhu Liu
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引用次数: 2

Abstract

Due to the high crude fiber content, straw of various crops is difficult to become a high quality forage resource. The degradation of cellulose in nature mainly depends on the cellulase secreted by microbes, which degrade cellulose into small molecular substances through chemical action, and the microbes that secrete cellulase mainly include some bacteria, fungi and actinomycetes, etc. The large and diverse microbial population contained in the mammalian gastrointestinal tract plays an important role in nutrient digestion. At present, many cellulose-degrading strains have been screened and obtained from animal digestive system and feces, such as Bacillus subtilis from the feces of Panda, Bacillus amyloliquefaciens from the cecum of goose. In this study, the fungal diversity was analysed in the fresh faeces of Tibetan sheep, Tibetan gazelle and Tibetan antelope in Qiangtang, Tibet. Results showed that the structure and species of gut fungi are different in three animals, which may be related to the different physiological functions among different animals, e.g., Tibetan antelope and Tibetan gazelle have stronger tolerance to rough feeding than Tibetan sheep. This study will lay a foundation for cellulose-degrading fungal development and provides technical support for improving rough feeding tolerance of Tibetan sheep.

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西藏羌塘地区藏羊、藏瞪羚和藏羚羊真菌微生物多样性特征
由于各种作物秸秆粗纤维含量高,难以成为优质的饲料资源。自然界中纤维素的降解主要依靠微生物分泌的纤维素酶,通过化学作用将纤维素降解成小分子物质,而分泌纤维素酶的微生物主要包括一些细菌、真菌和放线菌等。哺乳动物胃肠道中庞大而多样的微生物种群在营养物质消化中起着重要作用。目前,已经从动物消化系统和粪便中筛选获得了许多纤维素降解菌株,如从熊猫粪便中提取的枯草芽孢杆菌,从鹅盲肠中提取的解淀粉芽孢杆菌。本研究对西藏羌塘地区藏羊、藏羚羊和藏羚羊新鲜粪便中的真菌多样性进行了分析。结果表明,三种动物肠道真菌的结构和种类不同,这可能与不同动物的生理功能不同有关,如藏羚羊和藏羚羊对粗饲料的耐受性强于藏羊。本研究将为纤维素降解真菌的发育奠定基础,为提高藏羊的粗饲耐受性提供技术支持。
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来源期刊
Mycoscience
Mycoscience MYCOLOGY-
CiteScore
3.00
自引率
7.10%
发文量
32
审稿时长
3 months
期刊介绍: Mycoscience is the official English-language journal of the Mycological Society of Japan and is issued bimonthly. Mycoscience publishes original research articles and reviews on various topics related to fungi including yeasts and other organisms that have traditionally been studied by mycologists. The research areas covered by Mycoscience extend from such purely scientific fields as systematics, evolution, phylogeny, morphology, ecology, physiology, biochemistry, genetics, and molecular biology, to agricultural, medical, and industrial applications. New and improved applications of well-established mycological techniques and methods are also covered.
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