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琥珀聚糖的乙酰取代基对于苜蓿中华根瘤菌Rm1021侵染苜蓿根瘤并非必需。

The acetyl substituent of succinoglycan is not necessary for alfalfa nodule invasion by Rhizobium meliloti Rm1021.

作者信息

Reuber T L, Walker G C

机构信息

Department of Biology, Massachusetts Institute of Technology, Cambridge 02139.

出版信息

J Bacteriol. 1993 Jun;175(11):3653-5. doi: 10.1128/jb.175.11.3653-3655.1993.

DOI:10.1128/jb.175.11.3653-3655.1993
PMID:8501069
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC204767/
Abstract

Rhizobium meliloti Rm1021 requires a Calcofluor-binding exopolysaccharide, termed succinoglycan or EPS I, to invade alfalfa nodules. We have determined that a strain carrying a mutation in the exoZ locus produces succinoglycan that lacks the acetyl substituent. The exoZ mutant nodules alfalfa normally.

摘要

苜蓿中华根瘤菌Rm1021需要一种与荧光增白剂结合的胞外多糖（称为琥珀聚糖或EPS I）来侵入苜蓿根瘤。我们已经确定，在exoZ基因座携带突变的菌株产生的琥珀聚糖缺乏乙酰取代基。exoZ突变体能够正常地使苜蓿结瘤。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f63e/204767/e21ebc8ebdcc/jbacter00053-0420-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f63e/204767/e21ebc8ebdcc/jbacter00053-0420-a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f63e/204767/e21ebc8ebdcc/jbacter00053-0420-a.jpg

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