Methanogen Diversity in Indigenous and Introduced Ruminant Species on the Tibetan Plateau.

IF 2.3 4区 生物学 Q3 MICROBIOLOGY
Archaea-An International Microbiological Journal Pub Date : 2016-04-28 eCollection Date: 2016-01-01 DOI:10.1155/2016/5916067
Xiao Dan Huang, Gonzalo Martinez-Fernandez, Jagadish Padmanabha, Ruijun Long, Stuart E Denman, Christopher S McSweeney
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引用次数: 58

Abstract

Host factors are regarded as important in shaping the archaeal community in the rumen but few controlled studies have been performed to demonstrate this across host species under the same environmental conditions. A study was designed to investigate the structure of the methanogen community in the rumen of two indigenous (yak and Tibetan sheep) and two introduced domestic ruminant (cattle and crossbred sheep) species raised and fed under similar conditions on the high altitude Tibetan Plateau. The methylotrophic Methanomassiliicoccaceae was the predominant archaeal group in all animals even though Methanobrevibacter are usually present in greater abundance in ruminants globally. Furthermore, within the Methanomassiliicoccaceae family members from Mmc. group 10 and Mmc. group 4 were dominant in Tibetan Plateau ruminants compared to Mmc. group 12 found to be highest in other ruminants studied. Small ruminants presented the highest number of sequences that belonged to Methanomassiliicoccaceae compared to the larger ruminants. Although the methanogen community structure was different among the ruminant species, there were striking similarities between the animals in this environment. This indicates that factors such as the extreme environmental conditions and diet on the Tibetan Plateau might have a greater impact on rumen methanogen community compared to host differences.

Abstract Image

Abstract Image

青藏高原本地和引进反刍动物甲烷菌多样性研究。
宿主因素被认为是塑造瘤胃中古细菌群落的重要因素,但很少有对照研究在相同环境条件下跨宿主物种证明这一点。以青藏高原为研究对象,研究了在相似饲养条件下饲养的两种本地家畜(牦牛和藏羊)和两种引进家畜(牛和杂交羊)瘤胃内产甲烷菌群落结构。尽管全球反刍动物中通常存在更多的甲烷预菌,但在所有动物中,甲基营养型methanomassiliicocccaceae是主要的古菌群。此外,在产甲烷菊科中,来自Mmc的成员。第10基团和Mmc。与Mmc相比,第4组在青藏高原反刍动物中占优势。第12组在其他反刍动物中被发现是最高的。与体型较大的反刍动物相比,体型较小的反刍动物具有最多的Methanomassiliicoccaceae序列。虽然不同反刍动物的产甲烷菌群落结构不同,但在这种环境下,动物之间存在着惊人的相似性。这表明青藏高原极端环境条件和饮食等因素对瘤胃产甲烷菌群落的影响可能大于宿主差异。
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来源期刊
CiteScore
7.50
自引率
0.00%
发文量
1
审稿时长
>12 weeks
期刊介绍: Archaea is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles dealing with all aspects of archaea, including environmental adaptation, enzymology, genetics and genomics, metabolism, molecular biology, molecular ecology, phylogeny, and ultrastructure. Bioinformatics studies and biotechnological implications of archaea will be considered. Published since 2002, Archaea provides a unique venue for exchanging information about these extraordinary prokaryotes.
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