Marine sponge-associated bacteria as a potential source for polyhydroxyalkanoates. (4th May 2017)

• Record Type: Journal Article
• Authors: Sathiyanarayanan, Ganesan; Saibaba, Ganesan; Kiran, George Seghal; Yang, Yung-Hun; Selvin, Joseph
• Is Part Of: Critical reviews in microbiology. Volume 43:Number 3(2017)
• Page Start: 294
• Page End: 312
• Publication Date: 2017-05-04
• Subjects: Marine sponge -- sponge-associated bacteria -- biopolymers -- polyhydroxyalkanoates -- polyhydroxybutyrate; Microbiology -- Periodicals; Microbiology -- Periodicals; Review Literature -- Periodicals; 579
• DOI: 10.1080/1040841X.2016.1206060
• Languages: English
• ISSNs: 1040-841X

Abstract

Abstract: Marine sponges are filter feeding porous animals and usually harbor a remarkable array of microorganisms in their mesohyl tissues as transient and resident endosymbionts. The marine sponge-microbial interactions are highly complex and, in some cases, the relationships are thought to be truly symbiotic or mutualistic rather than temporary associations resulting from sponge filter-feeding activity. The marine sponge-associated bacteria are fascinating source for various biomolecules that are of potential interest to several biotechnological industries. In recent times, a particular attention has been devoted to bacterial biopolymer (polyesters) such as intracellular polyhydroxyalkanoates (PHAs) produced by sponge-associated bacteria. Bacterial PHAs act as an internal reserve for carbon and energy and also are a tremendous alternative for fossil fuel-based polymers mainly due to their eco-friendliness. In addition, PHAs are produced when the microorganisms are under stressful conditions and this biopolymer synthesis might be exhibited as one of the survival mechanisms of sponge-associated or endosymbiotic bacteria which exist in a highly competitive and stressful sponge-mesohyl microenvironment. In this review, we have emphasized the industrial prospects of marine bacteria for the commercial production of PHAs and special importance has been given to marine sponge-associated bacteria as a potential resource for PHAs.