Effects of amendment application on structure and abundance of nitrogen-fixing microbial community in acidic tobacco-planting soil
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摘要: 【目的】研究不同改良剂对酸性植烟土壤固氮菌群落和丰度的影响,从固氮微生物角度为改良剂的筛选及其推广应用提供科学依据。【方法】采用田间单因素随机试验,设4个改良剂处理,分别为硅钙钾镁(T1)、白云石粉(T2)、硅钙钾镁+生物炭(T3)和白云石粉+生物炭(T4),以不施用改良剂为对照(CK)。烟叶旺长期进行烟株农艺性状调查并采集根际土壤样品,以nifH基因作为分子标记,应用荧光定量PCR和高通量测序技术,研究不同处理的土壤固氮菌丰度和群落结构变化特征,并分析土壤固氮菌群落结构变化的主要驱动因素。【结果】施用不同改良剂普遍提高了烟株农艺性状及土壤p H、有机碳含量和C/N。施用改良剂可显著提高土壤固氮菌nifH基因丰度(P<0.05,下同),T1、T2、T3和T4处理分别较CK提高2.97、3.32、4.68和3.81倍。施用改良剂也提高了土壤固氮菌群落α多样性,且Chao1、ACE、Shannon和Simpson指数均以T3处理最高。相关分析结果表明,固氮菌丰度、Chao1和ACE指数与土壤pH呈显著正相关。在门水平上,共获得5个类群,其中放线菌门(Actinobacteria)、蓝藻门(Cyanobacteria)和厚壁菌门(Firmicutes)为优势类群。改良剂施用对固氮菌群落结构有显著影响,优势门和属发生变化,硅钙钾镁+生物炭处理显著增加放线菌门、蓝藻门、慢生根瘤菌属(Bradyrhizobium)和固氮螺菌属(Azospirillum)相对丰度。冗余分析结果表明,土壤pH、有机碳、硝态氮和C/N是驱动固氮菌群落结构变化的主要因素。【结论】硅钙钾镁+生物炭混施处理对缓解土壤酸化、改善烟田环境、促进烟株生长及提高固氮菌nifH基因丰度、群落α多样性和优势类群相对丰度效果显著,适合在酸性植烟土壤中推广应用。Abstract: 【Objective】To study the abundance and structure of nitrogen-fixing microbial community in different amendment application in acidic tobacco-planting soils,and to provide a scientific basis for selecting the amendment and applied in flue-cured tobacco production from a microbiological point of view.【Method】Open-field random test involving a single factor was performed. Four soil conditioner treatments were set,namely,silicon-calcium-potassium-magnesium(T1),dolomite(T2),silicon-calcium-potassium-magnesium and biochar(T3),dolomite and biochar(T4). The treatment without soil conditioner was the control(CK). Agronomic traits were investigated during the exuberant growing period,and rhizosphere soil samples were collected. The fluorogenic quantitative real-time PCR technique was adopted in the experiments using the high-throughput sequencing platform to target the nifH gene. The abundance,nitrogen-fixing microbial community composition in acidic tobacco-planting soils werestudied under different treatments. The driving factors for structural changes in the diazotrophic communities of the soil were identified.【Result】The application of different soil conditioners generally improved the agronomic traits of tobacco plants and soil pH value,organic carbon content and C/N ratio. Soil conditioners significantly improved the nifH gene abundance in soil nitrogen-fixing bacteria(P<0.05,the same below). T1,T2,T3 and T4 treatments achieved 2.97,3.32,4.68 and 3.81 times increase compared with CK,respectively.Soil conditioners also increased the α-diversity index of the soil nitrogen-fixing bacterial community. Of all treatments,T3had the highest Chao1,ACE,Shannon and Simpson indexes. The results of correlation analysis showed that the abundance of nitrogen-fixing microbial community,Chao1 and ACE indexes were significant positively correlated with soil pH. On the phylum level,five phyla were identified. Proteobacteria,Cyanobacteria,and Firmicutes were dominant phyla.In contrast,the amendment addition altered the nitrogen-fixing microbial community structure with shifts in the phyla and dominant genus,with significantly higher Proteobacteria,Cyanobacteria,Bradyrhizobium and Azospirillum in the siliconcalcium-potassium-magnesium and biochar. Soil p H,organic carbon,nitrate nitrogen and C/N were the key factor correlated with change in nitrogen-fixing microbial community structure. The results from redundancy analysis showed that soil pH,organic carbon,nitrate nitrogen and C/N were the key factors correlated with change in nitrogen-fixing microbial community structure.【Conclusion】Mixed application of silicon-calcium-potassium-magnesium and biochar has multiple effects:alleviating soil acidification,improving tobacco field environment,promoting tobacco plant growth,and increasing nifH gene abundance,α-diversity index,and relative abundance of dominant species in soil nitrogen-fixing bacteria. This fertilizer combination is worthy of wider application in acidic tobacco-growing soils.
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鲍士旦.2000.土壤农化分析[M].第3版.北京:中国农业出版社.[Bao S D.2000.Analysis of soil agrochemica[M].The 3rd Edition.Beijing:China Agriculture Press.] 邓小华,何铭钰,陈金,彭曙光,刘勇军,王振华,彭德元,符昌武,邓永晟,粟戈璇,夏振.2021.山地酸性土壤耕层重构的理化性状及酶活性动态变化[J].中国烟草科学,42(4):17-23.[Deng X H,He M Y,Chen J,Peng S G,Liu Y J,Wang Z H,Peng D Y,Fu C W,Deng Y S,Su G X,Xia Z.2021.Dynamic of soil physi-chemical properties and enzymatic activities after restructured arable layer of mountainous acidic soil[J].Chinese Tobacco Science,42(4):17-23.]doi: 10.13496/j.issn.1007-5119.2021.04.003. 杜倩,黄容,李冰,王昌全,文登鸿,谢云波,陈玉蓝,冯浪.2021.生物炭还田对植烟土壤活性有机碳及酶活性的影响[J].核农学报,35(6):1440-1450.[Du Q,Huang R,Li B,Wang C Q,Wen D H,Xie Y B,Chen Y L,Feng L.2021.Effect of biochar returning on labile organic carbon and enzyme activity in tobacco-growing soil[J].Journal of Nuclear Agricultural Sciences,35(6):1440-1450.]doi: 10.11869/j.issn.100-8551.2021.06.1440. 高雪峰,韩国栋.2021.短花针茅根系分泌物对荒漠草原土壤细菌群落及土壤养分的影响[J].中国草地学报,43(6):76-84.[Gao X F,Han G D.2021.Effects of Stipa breviflora root exudates on soil bacterial community and soil nutrients in desert steppe[J].Chinese Journal of Grassland,43(6):76-84.]doi: 10.16742/j.zgcdxb.20190310. 姜超强,董建江,徐经年,沈嘉,薛宝燕,祖朝龙.2015.改良剂对土壤酸碱度和烤烟生长及烟叶中重金属含量的影响[J].土壤,47(1):171-176.[Jiang C Q,Dong J J,Xu J N,Shen J,Xue B Y,Zu C L.2015.Effects of soil amendment on soil pH,plant growth and heavy metal accumulation of flue-cured tobacco in acid soil[J].Soils,47(1):171-176.]doi: 10.13758/j.cnki.tr.2015.01.027. 李春英,刘添毅,刘奕平,熊德中,邢世和,唐莉娜.2001.酸性植烟土壤施用石灰的后效探讨[J].烟草科技,(7):38-41.[Li C Y,Liu T Y,Liu Y P,Xiong D Z,Xing S H,Tang L N.2001.Discussion on after effects of applying lime in acidic tobacco planting soil[J].Tobacco Science&Technology,(7):38-41.]doi: 10.3969/j.issn.1002-0861.2001.07.018. 李旭,董炜灵,宋阿琳,李艳玲,卢玉秋,王恩召,刘雄舵,王萌,范分良.2021.秸秆添加量对土壤生物固氮速率和固氮菌群落特征的影响[J].中国农业科学,54(5):980-991.[Li X,Dong W L,Song A L,Li Y L,Lu Y Q,Wang E Z,Liu X T,Wang M,Fan F L.2021.Effects of straw addition on soil biological N2-fixation rate and diazotroph community properties[J].Scientia Agricultura Sinica,54(5):980-991.]doi: 10.3864/j.issn.0578-1752.2021.05.010. 李昱,何春梅,林新坚.2006.施用沸石、白云石对植烟土壤及烟叶品质的影响[J].烟草科技,(4):50-54.[Li Y,He CM,Lin X J.2006.Effects of zeolite and solomite application on tobacco growing soil and tobacco leaf quality[J].Tobacco Science&Technology,(4):50-54.]doi: 10.3969/j.issn.1002-0861.2006.04.014. 马存金.2020.硅钙钾镁肥不同用量对酸性土壤pH值及烟草根系发育的影响[J].江苏农业科学,48(19):83-86.[Ma C J.2020.Effects of different dosages of silicon-calciumpotassium-magnesium fertilizers on acid soil p H and tobacco root development[J].Jiangsu Agricultural Sciences,48(19):83-86.]doi: 10.15889/j.issn.1002-1302.2020.19.018. 孟颖,王宏燕,于崧,刘志华,赵成森,陶月.2014.生物黑炭对玉米苗期根际土壤氮素形态及相关微生物的影响[J].中国生态农业学报,22(3):270-276.[Meng Y,Wang HY,Yu S,Liu Z H,Zhao C S,Tao Y.2014.Effect of biochar on nitrogen forms and related microorganisms of rhizosphere soil of seedling maize[J].Chinese Journal of EcoAgriculture,22(3):270-276.]doi: 10.3724/SP.J.1011.2014.30750. 欧阳延生,徐桂花,于徐根,李翔宏,叶德胜,刘水华.2007.施用根瘤菌及石灰对紫花苜蓿生长的影响[J].江西农业学报,19(3):29-30.[Ouyang Y S,Xu G H,Yu X G,Li XH,Ye D S,Liu S H.2007.Efects of nodule bacteria and lime on growth of alfalfa[J].Acta Agriculturae Jiangxi,19(3):29-30.]doi: 10.19386/j.cnki.jxnyxb.2007.03.010. 田丽丽,王鑫.2020.地杆菌属微生物在厌氧污水处理中的应用潜力[J].给水排水,46(S):201-206.[Tian L L,Wang X.2020.Potential applications of Geobacter in anaerobic wastewater treatment[J].Water&Wastewater Eegineering,46(S):201-206.]doi: 10.13789/j.cnki.wwe1964.2020.S2.030. 王磊,王静,张爱君,张辉,张永春.2020.小麦-甘薯轮作长期增施有机肥对碱性土壤固氮菌群落结构及多样性的影响[J].生态学报,40(16):5771-5782.[Wang L,Wang J,Zhang A J,Zhang H,Zhang Y C.2020.Effects of longterm organic fertilization on soil diazotrophic community structure and diversity under wheat-sweet potato rotation system[J].Acta Ecologica Sinica,40(16):5771-5782.]doi: 10.5846/stxb201907231551. 王宇龙.2021.减氮配施腐植酸、生物炭对土壤理化性质及玉米养分吸收的影响[D].哈尔滨:东北农业大学.[Wang Y L.2021.Effects of nitrogen reduction combined with humic acid and biochar on soil physical and chemical properties and nutrient absorption of maizet[D].Harbin:Northeast Agricultural University.]doi: 10.27010/d.cnki.gdbnu.2021.000544. 吴愉萍,王明湖,席杰君,潘洁,陈玲瑜,连瑛,孙辉,周萍.2019.不同农业废弃物生物炭及施用量对土壤pH值和保水保氮能力的影响[J].中国土壤与肥料,(1):87-92.[Wu Y P,Wang M H,Xi J J,Pan J,Chen L Y,Lian Y,Sun H,Zhou P.2019.The effects of different agricultural waste biochars and application rates on soil pH,water holding capacity and N adsorption[J].Soil and Fertilizer Sciences in China,(1):87-92.]doi: 10.11838/sfsc.1673-6257.18094. 武晓桐.2020.生物炭对牛粪堆肥中固氮微生物多样性及功能的影响[D].哈尔滨:东北农业大学.[Wu X T.2020.Effect of biochar on the diversity and function of diazotrophs in cattle manure composting[D].Harbin:Northeast Agricultural University.]doi: 10.27010/d.cnki.gdbnu.2020.000782. 杨亚东,冯晓敏,胡跃高,任长忠,曾昭海.2017.豆科作物间作燕麦对土壤固氮微生物丰度和群落结构的影响[J].应用生态学报,28(3):957-965.[Yang Y D,Feng X M,Hu Y G,Ren C Z,Zeng Z H.2017.Effects of legumeoat intercropping on abundance and community structure of soil N2-fixing bacteria[J].Chinese Journal of Applied Ecology,28(3):957-965.]doi: 10.13287/j.1001-9332.201703.007. 张国,朱启法,郭熙盛,相智华,王世济,沈思灯,季学军.2014.皖南烟区白云石粉对酸性植烟土壤的改良研究[J].土壤,46(3):534-538.[Zhang G,Zhu Q F,Guo XS,Xiang Z H,Wang S J,Shen S D,Ji X J.2014.Amelioration of dolomite on acidity of flue-cured tobacco soil in south Anhui[J].Soils,46(3):534-538.]doi: 10.13758/j.cnki.tr.2014.03.023. Chen J,Wang P F,Wang C,Wang X,Miao L Z,Liu S,Yuan Q S.2019.Dam construction alters function and community composition of diazotrophs in riparian soils across an environmental gradient[J].Soil Biology and Biochemistry,132:14-23.doi: 10.1016/j.soilbio.2019.01.020.
DeLuca T H,Zackrisson O,Nilsson M C,Sellstedt A.2002.Quantifying nitrogen-fixation in feather moss carpets of boreal forests[J].Nature,419(6910):917-920.doi: 10.1038/nature01051.
Favero V O,de Carvalho R H,Leite A B C,dos Santos D MT,de Freitas K M,Boddey R M,Urquiaga S.2022.Bradyrhizobium strains from Brazilian tropical soils promote increases in nodulation,growth and nitrogen fixation in mung bean[J].Applied Soil Ecology,175:104461.doi: 10.1016/j.apsoil.2022.104461.
Fujihara S.2008.Biogenic amines in rhizobia and legume root nodules[J].Microbes and Environments,24(1):1-13.doi: 10.1264/jsme2.ME08557.
Gao L,Wang R,Shen G,Zhang J,Meng G,Zhang J.2017.Effects of biochar on nutrients and the microbial community structure of tobacco-planting soils[J].Journal of Soil Science and Plant Nutrition,17(4):884-896.doi: 10.4067/S0718-95162017000400004.
Hu X J,Liu J J,Zhu P,Wei D,Jin J,Liu X B,Wang G H.2018.Long-term manure addition reduces diversity and changes community structure of diazotrophs in a neutral black soil of northeast China[J].Journal of Soils and Sediments,18(5):2053-2062.doi: 10.1007/s11368-018-1975-6.
KarelováE,HarichováJ,Stojnev T,Pangallo D,Ferianc P.2011.The isolation of heavy-metal resistant culturable bacteria and resistance determinants from a heavy-metalcontaminated site[J].Biologia,66(1):18-26.doi: 10.2478/s11756-010-0145-0.
Kunhikrishnan A,Thangarajan R,Bolan N S,Xu Y,Mandal S,Gleeson D B,Naidu R.2016.Functional relationships of soil acidification,liming,and greenhouse gas flux[J].Advances in Agronomy,139:1-71.doi: 10.1016/bs.agron.2016.05.001.
Li C J,Ahmed W,Li D F,Yu L,Xu L J,Xu L,Xu T Y,Zhao Z X.2022.Biochar suppresses bacterial wilt disease of flue-cured tobacco by improving soil health and functional diversity of rhizosphere microorganisms[J].Applied Soil Ecology,171:104314.doi: 10.1016/j.apsoil.2021.104314.
Liu X Y,Liu C,Gao W H,Xue C,Guo Z H,Jiang L,Liu Y.2019.Impact of biochar amendment on the abundance and structure of diazotrophic community in an alkaline soil[J].Science of the Total Environment,688:944-951.doi: 10.1016/j.scitotenv.2019.06.293.
Mia S,Van Groenigen J W,Van de Voorde T F J,Oram N J,Bezemer T M,Mommer L,Jeffery S.2014.Biochar application rate affects biological nitrogen fixation in red clover conditional on potassium availability[J].Agriculture,Ecosystems&Environment,191:83-91.doi: 10.1016/j.agee.2014.03.011.
Niu J J,Chao J,Xiao Y H,Chen W,Zhang C,Liu X D,Rang Z W,Yin H Q,Dai L J.2017.Insight into the effects of different cropping systems on soil bacterial community and tobacco bacterial wilt rate[J].Journal of Basic Microbiology,57(1):3-11.doi: 10.1002/jobm.201600222.
Pereira e Silva M C,Semenov A V,van Elsas J D,Salles J F.2011.Seasonal variations in the diversity and abundance of diazotrophic communities across soils[J].FEMS Microbiology Ecology,77(1):57-68.doi: 10.1111/j.1574-6941.2011.01081.x.
Quilliam R S,DeLuca T H,Jones D L.2013.Biochar application reduces nodulation but increases nitrogenase activity in clover[J].Plant and Soil,366(1):83-92.doi: 10.1007/s11104-012-1411-4.
Rösch C,Mergel A,Bothe H.2002.Biodiversity of denitrifying and dinitrogen-fixing bacteria in an acid forest soil[J].Applied and Environmental Microbiology,68(8):3818-3829.doi: 10.1128/AEM.68.8.3818-3829.2002.
Steenhoudt O,Vanderleyden J.2000.Azospirillum,a free-living nitrogen-fixing bacterium closely associated with grasses:Genetic,biochemical and ecological aspects[J].FEMS Microbiology Reviews,24(4):487-506.doi: 10.1016/S0168-6445(00)00036-X.
Veresoglou S D,Menexes G.2010.Impact of inoculation with Azospirillum spp.on growth properties and seed yield of wheat:A meta-analysis of studies in the ISI Web of Science from 1981 to 2008[J].Plant and Soil,337(1):469-480.doi: 10.1007/s11104-010-0543-7.
Wang C,Zheng M M,Hu A Y,Zhu C Q,Shen R F.2018.Diazotroph abundance and community composition in an acidic soil in response to aluminum-tolerant and aluminum-sensitive maize (Zea mays L.)cultivars under two nitrogen fertilizer forms[J].Plant and Soil,424(1):463-478.doi: 10.1007/s11104-017-3550-0.
Wang C,Zheng M M,Song W F,Wen S L,Wang B R,Zhu CQ,Shen R F.2017a.Impact of 25 years of inorganic fertilization on diazotrophic abundance and community structure in an acidic soil in southern China[J].Soil Biology&Biochemistry,113:240-249.doi: 10.1016/j.soilbio.2017.06.019.
Wang Y S,Li C N,Kou Y P,Wang J J,Tu B,Li H,Li X Z,Wang C T,Yao M J.2017b.Soil pH is a major driver of soil diazotrophic community assembly in Qinghai-Tibet alpine meadows[J].Soil Biology&Biochemistry,115:547-555.doi: 10.1016/j.soilbio.2017.09.024.
Wang Z Y,Chen L,Sun F L,Luo X X,Wang H F,Liu G C,Hu Z H,Jiang Z X,Pan B,Zheng H.2017c.Effects of adding biochar on the properties and nitrogen bioavailability of an acidic soil[J].European Journal of Soil Science,68(4):559-572.doi: 10.1111/ejss.12436.
Xun W B,Li W,Huang T,Ren Y,Xiong W,Miao Y Z,Ran W,Li D C,Shen Q R,Zhang R F.2018.Long-term agronomic practices alter the composition of asymbiotic diazotrophic bacterial community and their nitrogen fixation genes in an acidic red soil[J].Biology and Fertility of Soils,54(3):329-339.doi: 10.1007/s00374-018-1264-y.
Zehr J P,Jenkins B D,Short S M,Steward G F.2003.Nitrogenase gene diversity and microbial community structure:A cross-system comparison[J].Environmental Microbiology,5(7):539-554.doi: 10.1046/j.1462-2920.2003.00451.x.
Zhang J,Huang Y,Lin J,Chen X,Li C,Zhang J.2020.Biochar applied to consolidated land increased the quality of an acid surface soil and tobacco crop in Southern China[J].Journal of Soils and Sediments,20(8):3091-3102.doi: 10.1007/s11368-019-02531-z.
Zhang J X,Zhang Z F,Shen G M,Wang R,Gao L,Kong FY,Zhang J G.2016.Growth performance,nutrient absorption of tobacco and soil fertility after straw biochar application[J].International Journal of Agriculture&Biology,18(5):983-989.doi: 10.17957/IJAB/15.0197.
Zhang Y G,Cong J,Lu H,Yang C Y,Yang Y F,Zhou J Z,Li D Q.2014.An integrated study to analyze soil microbial community structure and metabolic potential in two forest types[J].PLoS One,9(4):e93773.doi: 10.1371/journal.pone.0093773.
Zhang Y T,He X H,Liang H,Zhao J,Zhang Y Q,Xu C,Shi X J.2016.Long-term tobacco plantation induces soil acidification and soil base cation loss[J].Environmental Science and Pollution Research,23(6):5442-5450.doi: 10.1007/s11356-015-5673-2.
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