title: Effective Suppression of Methane Emission by 2-Bromoethanesulfonate during Rice Cultivation.
abstract: 2-bromoethanesulfonate (BES) is a structural analogue of coenzyme M (Co-M) and potent inhibitor of methanogenesis. Several studies confirmed, BES can inhibit CH4 prodcution in rice soil, but the suppressing effectiveness of BES application on CH4 emission under rice cultivation has not been studied. In this pot experiment, different levels of BES (0, 20, 40 and 80 mg kg-1) were applied to study its effect on CH4 emission and plant growth during rice cultivation. Application of BES effectively suppressed CH4 emission when compared with control soil during rice cultivation. The CH4 emission rates were significantly (P<0.001) decreased by BES application possibly due to significant (P<0.001) reduction of methnaogenic biomarkers like Co-M concentration and mcrA gene copy number (i.e. methanogenic abunadance). BES significantly (P<0.001) reduced methanogen activity, while it did not affect soil dehydrogenase activity during rice cultivation. A rice plant growth and yield parameters were not affected by BES application. The maximum CH4 reduction (49% reduction over control) was found at 80 mg kg-1 BES application during rice cultivation. It is, therefore, concluded that BES could be a suitable soil amendment for reducing CH4 emission without affecting rice plant growth and productivity during rice cultivation.
authors.affiliation: Division of Applied Life Sciences (BK 21 PLUS program), Gyeongsang National University, Jinju 660-701, South Korea.
authors.forename: Tatoba R
authors.initials: TR
authors.lastname: Waghmode
authors.affiliation: Division of Applied Life Sciences (BK 21 PLUS program), Gyeongsang National University, Jinju 660-701, South Korea.
authors.forename: Md Mozammel
authors.initials: MM
authors.lastname: Haque
authors.affiliation: Netherlands Institute of Ecology (NIOO-KNAW), Department of Microbial Ecology, Wageningen, The Netherlands.
authors.forename: Sang Yoon
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Division of Applied Life Sciences (BK 21 PLUS program), Gyeongsang National University, Jinju 660-701, South Korea.|Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 660-701, South Korea.
authors.forename: Pil Joo
authors.initials: PJ
authors.lastname: Kim
mesh_terms: D000383:Agriculture / Q000379:methods; D017738:Alkanesulfonic Acids / Q000494:pharmacology*; D018533:Biomass; D004305:Dose-Response Relationship, Drug; D015080:Mesna / Q000378:metabolism; D008697:Methane / Q000037:antagonists & inhibitors* / Q000378:metabolism; D012275:Oryza / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D010088:Oxidoreductases / Q000235:genetics / Q000378:metabolism; D016133:Polymerase Chain Reaction; D012987:Soil / Q000737:chemistry; D012988:Soil Microbiology
chemical_list: D017738:Alkanesulfonic Acids; D012987:Soil; C018853:2-bromoethanesulfonic acid; D010088:Oxidoreductases; C021572:methyl coenzyme M reductase; D015080:Mesna; D008697:Methane