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Manure application maintained the CO2 fixation activity of soil autotrophic bacteria but changed its ecological characteristics in an entisol of China
Science of the Total Environment ( IF 8.2 ) Pub Date : 2023-12-27 , DOI: 10.1016/j.scitotenv.2023.169630 Wanling Wei 1 , Xiaojun Shi 2 , Mingxia Wang 3 , Zhifeng Zhou 3
Science of the Total Environment ( IF 8.2 ) Pub Date : 2023-12-27 , DOI: 10.1016/j.scitotenv.2023.169630 Wanling Wei 1 , Xiaojun Shi 2 , Mingxia Wang 3 , Zhifeng Zhou 3
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The response of soil autotrophs to anthropogenic activities has attracted increasing attention against the background of global change. Here, three entisol plots under different fertilizing regimes, including no fertilization (CK), manure (M), and a combined application of chemical fertilizer and manure (NPKM) were selected, and then the soil RubisCO (ribulose-1,5-bisphosphate carboxylase/oxygenase) activity and (gene encoding the large subunit of RubisCO) composition were measured to indicate the activity and community of autotrophic bacteria, respectively. The results revealed that the RubisCO activity of CK showed no difference from that of M but was significantly higher than that of NPKM. The CK and M had the lowest and highest soil abundance, respectively. The -diversity of soil -carrying bacteria showed no significant difference among these treatments, whereas they showed significantly different community structures of -carrying bacteria. Meanwhile, compared with CK, M had significantly lower abundances of bacterial species with the functions of nitrogen fixation ( sp.KH32C) or detoxification (), indicating that manure application might have an inhibiting potential to some beneficial autotrophic bacterial species in this entisol.
中文翻译：
施肥维持了土壤自养细菌的CO2固定活性，但改变了其生态特征
在全球变化的背景下，土壤自养生物对人类活动的响应越来越受到人们的关注。在此选取不同施肥方案（包括不施肥（CK）、粪肥（M）和化肥与粪肥配施（NPKM））下的三个 entisol 地块，然后将土壤 RubisCO（核酮糖-1,5-二磷酸）测量羧化酶/加氧酶）活性和（编码 RubisCO 大亚基的基因）组成，分别指示自养细菌的活性和群落。结果表明，CK的RubisCO活性与M无差异，但显着高于NPKM。 CK和M分别具有最低和最高的土壤丰度。不同处理间土壤携带细菌的多样性没有显着差异，但携带细菌的群落结构却存在显着差异。同时，与CK相比，M具有固氮（sp.KH32C）或解毒（）功能的细菌种类丰度显着降低，表明施肥可能对该物质中一些有益的自养细菌种类具有抑制潜力。
更新日期：2023-12-27
中文翻译：
施肥维持了土壤自养细菌的CO2固定活性，但改变了其生态特征
在全球变化的背景下，土壤自养生物对人类活动的响应越来越受到人们的关注。在此选取不同施肥方案（包括不施肥（CK）、粪肥（M）和化肥与粪肥配施（NPKM））下的三个 entisol 地块，然后将土壤 RubisCO（核酮糖-1,5-二磷酸）测量羧化酶/加氧酶）活性和（编码 RubisCO 大亚基的基因）组成，分别指示自养细菌的活性和群落。结果表明，CK的RubisCO活性与M无差异，但显着高于NPKM。 CK和M分别具有最低和最高的土壤丰度。不同处理间土壤携带细菌的多样性没有显着差异，但携带细菌的群落结构却存在显着差异。同时，与CK相比，M具有固氮（sp.KH32C）或解毒（）功能的细菌种类丰度显着降低，表明施肥可能对该物质中一些有益的自养细菌种类具有抑制潜力。
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