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Metabolites

Title:		Taxonomic and Metabolite Diversities of Moss-Associated Actinobacteria from Thailand
Author(s):		Insuk C; Pongpamorn P; Forsythe A; Matsumoto A; Omura S; Pathom-Aree W; Cheeptham N; Xu J;
Address:		"Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada. National Omics Center, National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand. Kitasato Institute for Life Sciences, Kitasato University, Minato-ku, Tokyo 108-8641, Japan. Research Center of Microbial Diversity and Sustainable Utilization, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand. Department of Biological Sciences, Faculty of Science, Thompson Rivers University, Kamloops, BC V2C 0C8, Canada"
Journal Title:		Metabolites
Year:		2021
Volume:		20211227
Issue:		1
Page Number:		-
DOI:		10.3390/metabo12010022
ISSN/ISBN:		2218-1989 (Print) 2218-1989 (Electronic) 2218-1989 (Linking)
Abstract:		"Actinobacteria are a group of ecologically important bacteria capable of producing diverse bioactive compounds. However, much remains unknown about the taxonomic and metabolic diversities of actinobacteria from many geographic regions and ecological niches. In this study, we report the isolation of actinobacteria from moss and moss-associated rhizosphere soils in Thailand. Among the 89 isolates analyzed for their bioactivities, 86 strains produced indole-3-acetic acid (IAA, ranging from 0.04 to 59.12 mg/L); 42 strains produced hydroxamate type of siderophore; 35 strains produced catecholate type of siderophore; 21 strains solubilized tricalcium phosphate; and many strains exhibited antagonistic activities against one to several of the seven selected plant, animal, and human pathogens. Overall, actinobacteria from the rhizosphere soil of mosses showed greater abilities to produce IAA and siderophores and to solubilize tricalcium phosphate than those from mosses. Among these 89 isolates, 37 were analyzed for their 16S rRNA gene sequences, which revealed their diverse phylogenetic distributions among seven genera, Streptomyces, Micromonospora, Nocardia, Actinoplanes, Saccharothrix, Streptosporangium, and Cryptosporangium. Furthermore, gas chromatography-mass spectrometry analyses of ethyl acetate crude extracts of three selected isolates with inhibitory effects against a methicillin-resistant Staphylococcus aureus strain revealed diverse metabolites with known antimicrobial activities. Together, our results demonstrate that actinobacteria from mosses in Thailand are taxonomically diverse and capable of producing a range of metabolites with plant-growth-promoting and microbial pathogen-inhibiting potentials"
Keywords:		GC-MS (gas chromatography-mass spectrometry) MRSA (methicillin-resistant Staphylococcus aureus) VOCs (volatile organic compounds) actinobacteria moss plant growth promotion selective isolation white-nose syndrome;
Notes:		"PubMed-not-MEDLINEInsuk, Chadabhorn Pongpamorn, Pornkanok Forsythe, Adrian Matsumoto, Atsuko Omura, Satoshi Pathom-Aree, Wasu Cheeptham, Naowarat Xu, Jianping eng 2019-01/Development and Promotion of Science and Technology Talents Project/ 2019-02/Canada-ASEAN Scholarships and Educational Exchanges for Development/ GSC2020-3/McMaster University/ Switzerland 2022/01/21 Metabolites. 2021 Dec 27; 12(1):22. doi: 10.3390/metabo12010022"