ArticleMicrobes and environments2024
Methanotrophic Communities and Cultivation of Methanotrophs from Rice Paddy Fields Fertilized with Pig-livestock Biogas Digestive Effluent and Synthetic Fertilizer in the Vietnamese Mekong Delta.
Article in Microbes and environments, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed.
- Isolation of Methanotrophic Consortium from Chernevaya Taiga Soil and Laboratory Research on Its Introduction into Agro-Soil.Microorganisms · 2025Article
- Advances in mitigating methane emissions from rice cultivation: past, present, and future strategies.Environmental science and pollution research international · 2025Review
- The Rice-Microbe Nexus: Unlocking Productivity Through Soil Science.Rice (New York, N.Y.) · 2025Review
- Straw type governs methane-cycling microbiomes and CHFrontiers in microbiology · 2025Article
- Methane and nitrous oxide emissions in the rice-shrimp rotation system of the Vietnamese Mekong Delta.Heliyon · 2024Article
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7 authors.
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Abstract
Biogas digestive effluent (BDE) has been applied to rice fields in the Vietnamese Mekong Delta (VMD). However, limited information is available on the community composition and isolation of methanotrophs in these fields. Therefore, the present study aimed (i) to clarify the responses of the methanotrophic community in paddy fields fertilized with BDE or synthetic fertilizer (SF) and (ii) to isolate methanotrophs from these fields. Methanotrophic communities were detected in rhizospheric soil at the rice ripening stage throughout 2 cropping seasons, winter-spring (dry) and summer-autumn (wet). Methanotrophs were isolated from dry-season soil samples. Although the continued application of BDE markedly reduced net methane oxidation potential and the copy number of pmoA genes, a dissimilarity ordination ana-lysis revealed no significant difference in the methanotrophic community between BDE and SF fields (P=0.167). Eleven methanotrophic genera were identified in the methanotrophic community, and Methylosinus and Methylomicrobium were the most abundant, accounting for 32.3-36.7 and 45.7-47.3%, respectively. Type-I methanotrophs (69.4-73.7%) were more abundant than type-II methanotrophs (26.3-30.6%). Six methanotrophic strains belonging to 3 genera were successfully isolated, which included type I (Methylococcus sp. strain BE1 and Methylococcus sp. strain SF3) and type II (Methylocystis sp. strain BE2, Methylosinus sp. strain SF1, Methylosinus sp. strain SF2, and Methylosinus sp. strain SF4). This is the first study to examine the methanotrophic community structure in and isolate several methanotrophic strains from BDE-fertilized fields in VMD.
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