Four chemotypes of the terrestrial cyanobacterium Nostoc commune characterized by differences in the mycosporine‐like amino acids
Four chemotypes of the terrestrial cyanobacterium Nostoc commune characterized by differences in the mycosporine‐like amino acids
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陆生蓝藻发菜公社的四种化学型，其特征是类菌孢素氨基酸的差异
DOI：
10.1111/pre.12333
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发表时间：
2018
影响因子：
1.5
通讯作者：
S. Matsugo
中科院分区：
文献类型：
--
作者：
T. Sakamoto;Akane Hashimoto;Minami Yamaba;Naoki Wada;Takayuki Yoshida;Kaori Inoue;T. Nishiuchi;S. Matsugo
蓝细菌普通念珠藻适应于陆地环境，并具有世界性分布。4种基因型N.根据其16 S rRNA基因的差异，可以鉴定出这些基因型，这些基因型分布在日本各地，没有区域特异性。类菌孢菌素氨基酸（MAA）是紫外吸收色素，在N.公社。在本研究中，我们研究了MAA组成与N。公社基因型MAA的组成在基因型特异性的方式不同，这表明类型的MAA衍生物可以作为可行的化学分类标记，以表征N。公社。新的756-Da MAA被鉴定为1050-Da MAA的糖苷配基，并命名为念珠藻-756，发生在N的C基因型中。公社。念珠藻-756在体外起自由基清除剂的作用。最后，N.将普通念珠藻分成代表遗传上不同的化学型的四组，即，阿拉伯糖结合的卟啉-334生产者（化学型A）、糖基化念珠藻-756生产者（化学型B）、念珠藻-756生产者（化学型C）和糖基化的palythine-threonine生产者（化学型D）。无论是分子分类学方法还是特征次生代谢产物的化学分析都足以鉴定N。公社;然而，没有明显的生理生态差异，使我们能够区分它们。
The cyanobacterium Nostoc commune is adapted to terrestrial environments and has a cosmopolitan distribution. Four genotypes of N. commune can be identified based on differences in their 16S rRNA genes, and these genotypes are distributed throughout Japan without regional specificity. Mycosporine‐like amino acids (MAAs) are UV‐absorbing pigments, and novel glycosylated MAA derivatives with radical scavenging activities have been identified in N. commune. In this study, we investigated the consistency of the relationship between MAA compositions and N. commune genotypes. The MAA compositions were different in a genotype‐specific manner, suggesting that the types of MAA derivatives can feasibly be used as chemotaxonomic markers to characterize N. commune. The novel 756‐Da MAA, which was identified as an aglycone of the 1050‐Da MAA and named nostoc‐756, occurred in genotype C of N. commune. Nostoc‐756 functioned as a radical scavenger in vitro. In conclusion, N. commune is classified into four groups representing genetically different chemotypes, namely, the arabinose‐bound porphyra‐334 producer (chemotype A), the glycosylated nostoc‐756 producer (chemotype B), the nostoc‐756 producer (chemotype C) and the glycosylated palythine‐threonine producer (chemotype D). Either the molecular taxonomical method or chemical analysis of a characteristic secondary metabolite is sufficient to identify the types of N. commune; however, there are no obvious ecophysiological differences that allow us to distinguish them.
DOI：
10.2323/jgam.54.243
发表时间：
2008-10
期刊：
The Journal of general and applied microbiology
影响因子：
--
作者：
F. Morsy;S. Kuzuha;Yayoi Takani;T. Sakamoto
通讯作者：
F. Morsy;S. Kuzuha;Yayoi Takani;T. Sakamoto
影响因子：
4.4
作者：
Tamaru, Y;Takani, Y;Sakamoto, T
通讯作者：
Sakamoto, T