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首页> 外文期刊>Applied and Environmental Microbiology >New naphthalene-degrading marine Pseudomonas strains.
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New naphthalene-degrading marine Pseudomonas strains.

机译：新的降解萘的海洋假单胞菌菌株。

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Over 100 strains that utilized naphthalene as the only carbon and energy source were isolated from samples of marine sediments taken from a heavily polluted area. The isolates were characterized taxonomically and physiologically. Most of these strains belonged to the genus Pseudomonas, and seven of them did not fit any previous taxonomic description. They differed from type strains in a few biochemical characteristics and in the utilization of aromatic compounds. None had catechol 1,2-dioxygenase activity, and catechol 2,3-dioxygenase was responsible for the aromatic ring cleavage. DNA hybridization demonstrated a close relationship between two isolates and the Pseudomonas stutzeri type strain, and between five isolates and the Pseudomonas testosteroni type strain. On the basis of nutritional and enzymatic characteristics, it was assumed that the seven isolates represent new biovars belonging to the species P. testosteroni and P. stutzeri that are able to degrade aromatic hydrocarbons.
机译：从污染严重的海洋沉积物样本中分离出了100多种利用萘作为唯一碳源和能源的菌株。分离物的分类学和生理学特点。这些菌株大多数属于假单胞菌属，其中七个不符合任何先前的分类学描述。它们在某些生化特性和芳香化合物利用方面与类型菌株不同。没有人具有儿茶酚1,2-二加氧酶活性，而儿茶酚2,3-二加氧酶负责芳香环的裂解。 DNA杂交表明两个分离株与斯氏假单胞菌型菌株之间以及五个分离株与睾丸假单胞菌型菌株之间存在密切关系。根据营养和​​酶学特征，假设这七个分离物代表属于新生物变种，属于能够降解芳香烃的睾丸假单胞菌和斯图氏假单胞菌。

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