1. 海南西海岸真红树内生细菌多样性及其延缓衰老活性研究.
- Author
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李 蜜, 高程海, 姜 舒, 韦 娟, 刘思萍, 戴恩枝, and 易湘茜
- Abstract
The bacteria were isolated and purified from 46 tissues of 14 true mangrove plants used nine kinds of isolation media by dilution coating method. The bacteria were isolated from strains, and the species and genus diversities were analyzed by bacteria morphological characteristics and 16S rRNA gene sequences. The anti-aging activities of the bacteria were tested by Caenorhabditis elegans screening models. The results were as follows:(1)The 32 marine bacteria were obtained from 46 tissues of true mangrove plants without repeatitions. The 32 bacteria to comparison of 16S rRNA gene sequences which could be classified into 12 families and 17 genera. The dominant genus were Bacillus. It was discovered that a novel strain of suspected genus Aurantimonas, which 16S rRNA gene sequence similarities were less than 97%;(2)The three cultured marine bacteria could significantly delay Caenorhabditis elegans developing and had dominant anti-aging activities(P<0.05). All the above results indicate that the true mangrove plants collected from the west coast of Hainan have high species diversity and part strains are rich in anti-aging activity. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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