Agar-degrading bacteria isolated from Antarctic macroalgae

被引：12

作者：

Alvarado, Roxana ^{[1
]}

Leiva, Sergio ^{[1
]}

机构：

[1] Univ Austral Chile, Inst Bioquim & Microbiol, Fac Ciencias, Casilla 567, Valdivia, Chile

来源：

FOLIA MICROBIOLOGICA | 2017年 / 62卷 / 05期

关键词：

GREAT SALT PLAINS; BETA-AGARASE; MARINE-BACTERIA; SP NOV; HETEROTROPHIC BACTERIA; ACTIVE ENZYMES; DIVERSITY; MICROORGANISMS; PURIFICATION; IDENTIFICATION;

D O I：

10.1007/s12223-017-0511-1

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

This study describes the taxonomic diversity of pigmented, agar-degrading bacteria isolated from the surface of macroalgae collected in King George Island, Antarctica. A total of 30 pigmented, agarolytic bacteria were isolated from the surface of the Antarctic macroalgae Adenocystis utricularis, Monostroma hariotii, Iridaea cordata, and Pantoneura plocamioides. Based on the 16S rRNA data, the agarolytic isolates were affiliated to the genera Algibacter, Arthrobacter, Brachybacterium, Cellulophaga, Citricoccus, Labedella, Microbacterium, Micrococcus, Salinibacterium, Sanguibacter, and Zobellia. Isolates phylogenetically related to Cellulophaga algicola showed the highest agarase activity in culture supernatants when tested at 4 and 37 A degrees C. This is the first investigation of pigmented agar-degrading bacteria, members of microbial communities associated with Antarctic macroalgae, and the results suggest that they represent a potential source of cold-adapted agarases of possible biotechnological interest.

引用

页码：409 / 416

页数：8

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