[1]吴婷婷,黄路婷,谢元贵*,等. 不同产地米槁根际菌群多样性及其影响因素[J].西北林学院学报,2023,38(2):185-192.[doi:10.3969/j.issn.1001-7461.2023.02.26]
　WU Ting-ting,HUANG Lu-ting,XIE Yuan-gui*,et al. Community Diversity and Influencing Factors of the Cinnamomum migao Rrhizosphere Fungi from Different Places of Origin[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(2):185-192.[doi:10.3969/j.issn.1001-7461.2023.02.26]
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 不同产地米槁根际菌群多样性及其影响因素()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第38卷
期数:
2023年第2期
页码:
185-192
栏目:
出版日期:
2023-03-31

文章信息/Info

Title:
 Community Diversity and Influencing Factors of the Cinnamomum migao Rrhizosphere Fungi from Different Places of Origin
文章编号:
1001-7461(2023)02-0185-08
作者:
 吴婷婷1; 黄路婷1; 谢元贵1; 2*; 刘济明1; 田秀1; 廖小锋2
 （1.贵州大学 林学院，贵州 贵阳 550025；2.贵州科学院，贵州 贵阳 550001）
Author(s):
 WU Ting-ting1; HUANG Lu-ting1; XIE Yuan-gui1; 2*; LIU Ji-ming1; TIAN Xiu1; LIAO Xiao-feng2
 (1.College Forestry of Guizhou University,Guiyang 550025,Guizhou,China; 2.Guizhou Academy of Sciences,Guiyang 550001,Guizhou,China)
关键词:
 ; 米槁; 根际; 可培养真菌; 菌群多样性; 土壤因子
Keywords:
Cinnamomum migao;  rhizosphere;  culturable fungus;  microbiota diversity;  edaphic factor
分类号:
S763.15
DOI:
10.3969/j.issn.1001-7461.2023.02.26
文献标志码:
A
摘要:
 以贵州省黔西南、黔南州3个产地（BP、LD、XL）的米槁根际土壤为研究对象，采用纯培养手段对米槁根际真菌进行纯化培养，探讨米槁根际土壤可培养真菌多样性和分离潜力，为后期促生真菌的筛选和功能验证提供基础依据。结果表明，从不同产地米槁根际土壤中共分离到真菌367株，鉴定为3门5纲17目38科57属。木霉属Trichoderma是3产地共有的优势属，占总菌株的20.98%。BP、LD和XL的共有属有9种且木霉属是BP（22.6%）和LD（27.3%）的绝对优势属，XL的绝对优势属为青霉菌属（16.7%）。在属水平上，BP的菌群多样性和丰富度最高，LD的菌群多样性最低，但其均匀度最高。不同产地米槁根际菌群的组成不同，其中除BP与XL之间中等不相似，其余产地间极不相似。菌群多样性与土壤化学性质及酶活性存在显著相关性，全氮、速效氮、有效钾和蔗糖酶活性是影响米槁根际菌群多样性的关键因子。
Abstract:
 The rhizosphere soils of Cinnamomum migao from three original places (Bapeng Villiage,BV; Naqing Villiage of Luodian County,LD; Xiangle Villiage,XL) of in Qianxinan and Qiannan prefectures of Guizhou Province were taken as the research objects.The soils were purified,and cultured to investigate the diversity and separation potential of rhizosphere soil culturable fungi to provide the basic information for screening growth-promoting fungi and functional verification.The results showed that a total of 367 strains of fungi were isolated from the soils,belonging to 3 phyla,5 classes,17 orders,38 families,and 57 genera.Trichoderma was the dominant genus shared by the three places of origin,accounting for 20.98% of the total bacterial strains.There were 9 common genera of BP,LD,and XL,and Trichoderma was the absolutely dominant genus of BP (22.6%) and LD (27.3%),and the absolute dominant genus of XL was Penicillium (16.7%).At the genus level,BP had the highest microbiota diversity and richness,while LD had the lowest microbiota diversity but the highest uniformity.The composition of the C.migao rhizosphere flora varied from different origins,the composition dissimilarity between BP and XL was in medium level,while between other origin pair,the dissimilarity was extremely high.There was a significant correlation between microbiota diversity and soil chemistry and enzyme activities.Total nitrogen,available nitrogen,available potassium,and S-SC activities were the key factors influencing the Cinnamomum migao microbiota diversity.

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备注/Memo

备注/Memo:
 收稿日期：2022-03-11修回日期：2022-04-21
基金项目：贵州省科技计划项目（黔科合支撑［2019］2774号）；贵州省土地绿色整治工程研究中心（黔发改投资［2019］号）；贵州科学院资助项目（黔科院科专合字［2019］06号、黔科院人才［2019］07号）； 贵阳国家高新区科技计划项目（GXYF-2018-003）。
第一作者：吴婷婷。研究方向：植物生态学。E-mail:1915472823@qq.com
*通信作者：谢元贵，研究员。研究方向：土地资源与生态修复。E-mail:yuangui_xie@163.com
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