|本期目录/Table of Contents|

[1]曹超逸,潘义宏,冀新威,等.不同连作年限烤烟根际红壤微生物多样性比较[J].江苏农业科学,2022,50(19):211-219.
 Cao Chaoyi,et al.Comparison of microbial diversity in rhizosphere red soil of flue-cured tobacco with different continuous cropping years[J].Jiangsu Agricultural Sciences,2022,50(19):211-219.
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第50卷
期数:
2022年第19期
页码:
211-219
栏目:
资源与环境
出版日期:
2022-10-05

文章信息/Info

Title:
Comparison of microbial diversity in rhizosphere red soil of flue-cured tobacco with different continuous cropping years
作者:
曹超逸1潘义宏1冀新威2黄坤2李柘锦2张加研1
1.西南林业大学化学工程学院,云南昆明 650224; 2.云南省烟草公司红河州公司,云南弥勒 652300
Author(s):
Cao Chaoyiet al
关键词:
烤烟连续种植红壤细菌群落真菌群落
Keywords:
-
分类号:
S572.06;S182
DOI:
-
文献标志码:
A
摘要:
为探究不同种植年限现蕾期烤烟根际土壤微生物多样性的规律及差异,以云南红河不同种植年限根际红壤为研究对象,采用16S rRNA和ITS序列进行高通量测序,对比分析不同种植年限烤烟根系细菌和真菌多样性、群落分布规律及与种植年限的相关性。结果表明,根际土壤细菌和真菌群落的α多样性(ACE和Chao1)随种植0年—种植1年—连续种植2年、3年—连续种植4年—连续种植5年呈升高—降低—升高—降低的变化趋势,且轮作处理细菌群落ACE和Chao1多样性最高,撂荒处理真菌群落ACE和Chao1多样性最高;6个处理间根际土壤细菌和真菌群落β多样性均存在极显著差异(R2=0.732,P<0.01;R2=0.520,P<0.01),短期连续种植年限(SCC2和SCC3)能使土壤具有明显的细菌群落结构,撂荒处理(SCK)能使土壤具有明显的真菌群落结构;优势细菌中的酸杆菌门和绿弯菌门与种植年限呈显著负相关(P<0.05);疣微菌门与种植年限呈显著正相关(P<0.05)。细菌属水平中的苔藓杆菌属、RB41菌属与种植年限呈显著负相关(P<0.05)。真菌门和属水平类群与种植年限均无显著相关性(P>0.05)。其中,6个处理优势真菌均为子囊菌门,属水平的镰刀菌属在连续种植5年处理丰度最高,达到10.01%,可能会引起真菌病害,导致连作障碍的发生。说明不同耕作方式对土壤微生物群落结构均有影响,连续种植对烤烟根际土壤微生物多样性有负向影响,研究中筛选的关键菌群,可为连作烤烟红壤微环境健康的判断提供科学依据。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2022-05-10
基金项目:中国烟草总公司云南省公司科技计划(编号:2019530000241036);云南省教育厅科学研究基金(编号:2020Y0415)。
作者简介:曹超逸(1994—),男,河北石家庄人,硕士研究生,研究方向为烟叶配套生产技术。E-mail:caochaoyi123@163.com。
通信作者:张加研,博士,教授,主要从事林产化学、烟草原料化学以及烤烟配套种植技术研究工作。E-mail:zhangjiayan@swfu.edu.cn。
更新日期/Last Update: 2022-10-05