细胞壁半乳糖呋喃和半乳甘露聚糖作为克拉维氏菌属及其种的化学分类学特征

IF 1.3 4区 生物学 Q4 MICROBIOLOGY
E. M. Tul’skaya, D. Kim, N. V. Potekhina, A. S. Shashkov, S. N. Senchenkova, L. V. Dorofeeva, L. I. Evtushenko
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引用次数: 0

摘要

摘要 在两种植物病原菌 Clavibacter insidiosus VKM Ac-1402T 和 Clavibacter nebraskensis VKM Ac-1404T (微细菌科,放线菌属)的模式菌株中发现了两种不同结构的细胞壁糖聚合物。第一种类型的代表是以前未曾描述过的新型(1→6)-连接β-D-半乳糖呋喃,在所研究的菌株中,其侧寡糖链的结构各不相同(结构见正文)。第二种聚糖(一种含丙酮酸的半乳甘露聚糖)在两种菌株中的结构相同。这项研究以及之前发表的研究结果表明,含丙酮酸半乳甘露聚糖和半乳呋喃聚糖(核心结构相同,侧寡糖取代基不同)的存在可被视为克拉维氏菌属的化学分类学特征,而具有不同组成和结构的二糖、三糖或四糖取代基的半乳呋喃聚糖可作为物种的化学分类学标记。所获得的数据扩展了我们对天然糖聚合物结构多样性和不同类群细菌细胞壁结构特征的了解,可能对分类学研究和旨在阐明细菌与植物细胞之间相互作用的分子机制的研究有意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Cell Wall Galactofuranans and Galactomannan as Chemotaxonomic Characteristics of the Clavibacter Genus and its Species

Cell Wall Galactofuranans and Galactomannan as Chemotaxonomic Characteristics of the Clavibacter Genus and its Species

Abstract

Two types of cell wall glycopolymers of different structure were found in the type strains of two species of phytopathogenic bacteria, Clavibacter insidiosus VKM Ac-1402T and Clavibacter nebraskensis VKM Ac-1404T (family Microbacteriaceae, class Actinomycetes). The first type was represented by new, previously undescribed (1→6)-linked β-D-galactofuranans, which in the studied strains differed in the structure of side oligosaccharide chains (the structures are given in the text). The structure of the second glycopolymer, a pyruvate-containing galactomannan, was identical in both strains. The results obtained in this work, together with those published previously, indicate that the presence of the pyruvate-containing galactomannan and galactofuranans (with an identical core structure and different side oligosaccharide substituents) can be considered as a chemotaxonomic trait of the genus Clavibacter, and galactofuranans with di-, tri-, or tetrasaccharide substituents of different composition and structures can serve as chemotaxonomic markers of the species. The data obtained expand our understanding of the structural diversity of natural glycopolymers and structural features of the bacterial cell walls in various taxa and may be of interest for taxonomic studies and the studies aimed at elucidating the molecular mechanisms of interaction between bacteria and plant cells.

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来源期刊
Microbiology
Microbiology 生物-微生物学
CiteScore
2.40
自引率
13.30%
发文量
60
审稿时长
6-12 weeks
期刊介绍: Microbiology is an is an international peer reviewed journal that covers a wide range of problems in the areas of fundamental and applied microbiology. The journal publishes experimental and theoretical papers, reviews on modern trends in different fields of microbiological science, and short communications with descriptions of unusual observations. The journal welcomes manuscripts from all countries in the English or Russian language.
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