About this Research Topic
Actinobacteria are highly diverse prokaryotes that are ubiquitous in soil, freshwater and marine ecosystems. Although various studies have focused on the ecology of this phylum, data are still scant on the diversity, abundance and ecology of actinobacteria endemic to special and extreme environments, such as gut, plant, alkaline saline soil, deep sea sediments, hot springs and other habitats. Actinobacteria are well-known producers of a vast array of secondary metabolites, many of which have useful applications in medicine and agriculture. Furthermore, actinobacteria also have diverse functions in different environments apart from antibiotic production. For example, actinobacteria are reported to contribute to the break-down and recycling of organic compounds. They play a significant role in fixation of nitrogen, improvement plant growth, biodegradation, bioremediation and environmental protection. Therefore, understanding the actinobacterial diversity and distribution in such special environments is important in deciphering the ecological roles of these microorganisms and for biotechnological bioprospecting.
Recent advances in cultivation, DNA sequencing technologies and -omics (metagenomics, metaproteomics etc) methods have greatly contributed to the rapid advancement of our understanding of microbial diversity, function and they interactions with environment. Furthermore, comparative genomic studies can provide overall information about actinobacterial speciation, evolution, metabolism and environment adaptation mechanisms. With this proposed research topic we aim to report on the recent advances in our understanding of the diversity, function and environmental adaptations of actinobacteria in various special and extreme habitats.
In this Research Topic, we welcome contributions of original research articles, reviews or opinions that related to the proposed topic. Submissions that reveal unexpectedly diverse/rare group of actinobacteria with special selective isolation methods or culture-independent methods are encouraged. Application of –omics methods to bring new visions towards understanding the ecological function and environment adaptation of actinobacteria in such habitats are particularly welcomed.
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