PMID- 31854886 OWN - NLM STAT- MEDLINE DCOM- 20200106 LR - 20200108 IS - 0250-3301 (Print) IS - 0250-3301 (Linking) VI - 40 IP - 9 DP - 2019 Sep 8 TI - [Effects of Rice Straw Addition on Methanogenic Archaea and Bacteria in Two Paddy Soils]. PG - 4202-4212 LID - 10.13227/j.hjkx.201901195 [doi] AB - Rice straw (RS) returning has an important effect on CH(4) emission in rice paddy soil. In the present study, two paddy soil types from Jiangxi (JX) and Guangdong (GD), respectively, with different amounts of added RS were incubated through microcosmic anaerobic incubation experiments to investigate the responses of methanogenic archaea and bacteria communities after relatively long-term incubation. The different amounts of added RS affected methanogenic archaea community structures in the JX soil to some extent but did not affect the GD soil. The mcrA gene copy number increased with an increase in RS amount in both soils. Under the same amount of RS, the copy number of this gene in the JX soil was greater than that in the GD soil. In addition, significant positive correlations were shown between the RS amount and the copy number of the mcrA gene, and the response of the copy number was more sensitive to the RS amount in the JX soil. Obvious differences in methanogenic archaea community structures were shown between two soils. Methanosarcinaceae, Methanocellaceae, Methanomicrobiaceae, Methanobacteriaceae, and unknown microorganism (494 bp) were detected in the JX soil, and Methanobacteriaceae, Methanosarcinaceae, and Methanocellaceae were observed in the GD soil. The bacterial communities exhibited obvious differences between the two soil types after 180 days of incubation. The bacterial diversity in the GD soil was higher than that in the JX soil, although the amounts of dominant bacteria in the JX soil, including Bacillus, Desulfovirgula, Thermosporothrix, Acidobacteria/Gp1, Acidobacteria/Gp3, and Ktedonobacter, were higher than those of the GD soil, including Longilinea, Acidobacteria/Gp6, Bellilinea, and Thermosporothrix. RS application promoted the growth of methanogenic archaea as important substrates. Moreover, different structures of methanogens and bacteria were shown between the two soil types after relatively long-term incubation. FAU - Bao, Qiong-Li AU - Bao QL AD - Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjing 300191, China. FAU - Wang, Feng-Hua AU - Wang FH AD - Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 100101, China. FAU - Bao, Wan-Kui AU - Bao WK AD - Institute of Agricultural Resource and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China. FAU - Huang, Yi-Zong AU - Huang YZ AD - Agro-Environmental Protection Institute, Ministry of Agriculture, Tianjing 300191, China. LA - chi PT - Journal Article PL - China TA - Huan Jing Ke Xue JT - Huan jing ke xue= Huanjing kexue JID - 8405344 RN - 0 (RNA, Ribosomal, 16S) RN - 0 (Soil) RN - OP0UW79H66 (Methane) SB - IM MH - *Archaea MH - Bacteria MH - Methane MH - *Oryza MH - RNA, Ribosomal, 16S MH - Soil MH - *Soil Microbiology OTO - NOTNLM OT - bacteria OT - methanogenic archaea OT - microcosmic anaerobic culture OT - paddy soil OT - rice straw EDAT- 2019/12/20 06:00 MHDA- 2020/01/07 06:00 CRDT- 2019/12/20 06:00 PHST- 2019/12/20 06:00 [entrez] PHST- 2019/12/20 06:00 [pubmed] PHST- 2020/01/07 06:00 [medline] AID - 10.13227/j.hjkx.201901195 [doi] PST - ppublish SO - Huan Jing Ke Xue. 2019 Sep 8;40(9):4202-4212. doi: 10.13227/j.hjkx.201901195.