Recent advances in the class Acidimicrobiia

Abstract:

Strains in class Acidimicrobiia belonging to phylum Actinobacteria, widely live in acid mine drainage (AMD), ocean, desert, freshwater and soil environments. Recently, the class Acidimicrobiia species receive more attentions because of their barely growth under the laboratory condition and typical physiological and biochemical characteristics, including acidophilic, moderately thermophilic, or capable to Fe2+ oxidation and Fe3+ reduction. Acidimicrobiia species have been used in bioleaching, acid mine wastewater treatment and chemical synthesis based on their capabilities to oxidize ores and synthesize new active substances. While some mesophilic Acidimicrobiia species are the dominant group in neutral and weak alkaline environments, such as soil, desert and freshwater etc. This review summarizes the studies on Acidimicrobiia, including the process of establishment and development, phylogenetic analysis, species diversity and geographical distribution, physiological characteristics, metabolites, genomic studies, and prospects their potential applications and research fields.