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首页> 外文OA文献 >Alcanivorax hongdengensis sp. nov., an alkane-degrading bacterium isolated from surface seawater of the straits of Malacca and Singapore, producing a lipopeptide as its biosurfactant
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Alcanivorax hongdengensis sp. nov., an alkane-degrading bacterium isolated from surface seawater of the straits of Malacca and Singapore, producing a lipopeptide as its biosurfactant

机译：alcanivorax hongdengensis sp。 nov。，一种从马六甲和新加坡海峡表层海水中分离出的烷烃降解菌，产生脂肽作为生物表面活性剂

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摘要

A taxonomic study was carried out on strain A-11-3 T, which was isolated from an oil-enriched consortia from the surface seawater of Hong-Deng dock in the Straits of Malacca and Singapore. Cells were aerobic, Gram-negative, non-spore-forming irregular rods. The strain was catalase-and oxidase-negative. It grew on a restricted spectrum of organic compounds, including some organic acids and alkanes. 16S rRNA gene sequence comparisons showed that strain A-11-3 T was most closely related to the type strains of Alcanivorax jadensis (96.8% sequence similarity), Alcanivorax borkumensis (96.8 %), Alcanivorax dieselolei (94.8 %), Alcanivorax venustensis (94.2 %) and Alcanivorax balearicus (94.0 %). The predominant fatty acids were C 16:0 (31.2 %), C 18:1ω7c (24.8 %), C 18:0 (9.6 %), C 12:0 (8.3 %), C 16:1ω7c (8.3 %) and C 16:0 3-OH (5.1 %). The G+C content of the genomic DNA was 54.7 mol%. Moreover, the strain produced lipopeptides as its surface-active compounds. According to physiological and biochemical tests, DNA-DNA hybridization results and sequence comparisons of the 16S-23S internal transcribed spacer, the gyrB gene and the alkane hydroxylase gene alkB1, strain A-11-3 T was affiliated with the genus Alcanivorax but could be readily distinguished from recognized Alcanivorax species. Therefore strain A-11-3 T represents a novel species of the genus Alcanivorax for which the name Alcanivorax hongdengensis sp. nov. is proposed. The type strain is A-11-3 T (=CGMCC 1.7084 T=LMG 24624 T =MCCC 1A01496 T). © 2009 IUMS.
机译：对菌株A-11-3 T进行了分类学研究，该菌株是从马六甲海峡和新加坡海峡的洪登码头地表海水中富含石油的财团中分离出来的。细胞为需氧，革兰氏阴性，无芽孢的不规则杆。该菌株是过氧化氢酶和氧化酶阴性的。它在有限范围的有机化合物（包括一些有机酸和烷烃）中生长。 16S rRNA基因序列比较表明，菌株A-11-3 T与贾第氏菌（96.8％序列相似性），博氏Al氏菌（96.8％），柴胡氏油菌（94.8％），韦氏菌（94.2％）的类型菌株最相关。 ％）和Alcanivorax balearicus（94.0％）。主要脂肪酸为C 16：0（31.2％），C 18：1ω7c（24.8％），C 18：0（9.6％），C 12：0（8.3％），C 16：1ω7c（8.3％）和C 16：0 3-OH（5.1％）。基因组DNA的G + C含量为54.7mol％。此外，该菌株产生脂肽作为其表面活性化合物。根据生理和生化测试，DNA-DNA杂交结果和16S-23S内部转录间隔区，gyrB基因和烷烃羟化酶基因alkB1，菌株A-11-3 T属于Alcanivorax属，但可以容易与公认的Alcanivorax物种区分开。因此，菌株A-11-3T代表名称为Alcanivorax hongdengensis sp。的Alcanivorax属的新物种。十一月被提议。类型应变为A-11-3 T（= CGMCC 1.7084 T = LMG 24624 T = MCCC 1A01496 T）。 ©2009 IUMS。

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