[1]施竹丽,施竹凤,裴卫华,等.有机碳介导的油菜土壤可培养细菌多样性特征分析[J].江苏农业科学,2026,54(2):242-252.
 Shi Zhuli,et al.Analysis of culturable bacterial diversity characteristics in oilseed rape soil mediated by organic carbon[J].Jiangsu Agricultural Sciences,2026,54(2):242-252.
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有机碳介导的油菜土壤可培养细菌多样性特征分析()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第2期
页码:
242-252
栏目:
农业资源与环境
出版日期:
2026-01-20

文章信息/Info

Title:
Analysis of culturable bacterial diversity characteristics in oilseed rape soil mediated by organic carbon
作者:
施竹丽12施竹凤2裴卫华2普特2刘鑫12王宇12贾健鹏12何飞飞1杨佩文2
1.云南大学资源植物研究院,云南昆明 650504; 2.云南省农业科学院农业环境资源研究所,云南昆明 650205
Author(s):
Shi Zhuliet al
关键词:
有机碳油菜根肿病土壤可培养细菌Illumina MiSeq网络分析
Keywords:
-
分类号:
S154.3;S182;S634.306
DOI:
-
文献标志码:
A
摘要:
为了提升油菜产量,于2020年10月至2025年3月开展有机碳施用试验,分析有机碳对油菜根肿病土壤可培养细菌种群多样性的影响。以不施肥、单施化肥、腐熟牛粪与化肥配施、2倍腐熟牛粪与化肥配施、4倍腐熟牛粪与化肥配施为研究对象。在油菜收获期采集土壤样品,采用稀释涂布平板法,分别以NA、PCA、LB和R2A培养基进行分离培养获得可培养细菌种群。基于高通量测序技术,分析可培养细菌种群组成和多样性的差异。结果发现,不同施肥处理土壤可培养细菌OTU数量、α多样性和β多样性指数差异显著。施有机碳处理,在门水平,变形菌门的相对丰度分别为28.82%、38.18%和51.87%,均高于TCK(9.23%)和TS1(5.01%),拟杆菌门的相对丰度分别为907%、211%、14.14%,均高于TCK(0.23%)和TS1(0.03%);厚壁菌门和放线菌门的相对丰度较TCK处理分别减少3085%~62.41%和51.61%~72.73%。在纲水平,γ-变形菌纲、α-变形菌纲、β-变形菌纲、鞘氨醇杆菌纲的相对丰度均增加;杆菌纲的相对丰度较TCK减少31.61%~61.90%,较TS1减少36.12%~64.41%。在属水平,斯特诺氏菌属、肠杆菌属、鞘氨醇杆菌属和无色杆菌属的相对丰度增加;杆菌属、普里斯特氏菌属的相对丰度减少。LEfSe分析发现,有机碳处理富集的有益细菌种群具有生防、促生和抗逆等功能。共现网络分析发现,有机碳处理的网络拓扑特性,如平均度、边数和网络密度高于不施有机碳处理。由此得出,外源有机碳的添加显著提升了土壤微生物群落的多样性,并导致微生物群落结构发生明显改变,以施用69 000 kg/hm2腐熟牛粪+化肥187 kg/hm2为佳,可在油菜种植中推荐应用。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2025-04-14
基金项目:云南省教育厅科学研究基金(编号:2025Y0137);云南大学专业学位研究生实践创新基金(编号:ZC-24248686);云南省科技厅科技计划(编号:202301BD070001-131);云南省“兴滇英才”计划(编号:XDYCCYCX-2022-0071)。
作者简介:施竹丽(1991—),女,云南大理人,硕士研究生,研究方向为农田土壤微生物。E-mail:15969576820@139.com。
通信作者:杨佩文,博士,研究员,硕士生导师,主要从事作物病害生物防治研究。E-mail:peiwenyang@yaas.org.cn。
更新日期/Last Update: 2026-01-20