[1]曹国奥,刘燕,曾维军.威宁短柱油茶根系内生真菌欧石楠无柄盘菌对油茶小苗生长和抗旱性的影响[J].江苏农业科学,2026,54(8):253-259.
 Cao Guoao,et al.Influences of inoculation with endophytic fungus Pezicula ericae isolated from Camellia weiningensii roots on growth and drought resistance of C. oleifera seedlings[J].Jiangsu Agricultural Sciences,2026,54(8):253-259.
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威宁短柱油茶根系内生真菌欧石楠无柄盘菌对油茶小苗生长和抗旱性的影响()

《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第54卷
期数:
2026年第8期
页码:
253-259
栏目:
干旱胁迫调控
出版日期:
2026-04-20

文章信息/Info

Title:
Influences of inoculation with endophytic fungus Pezicula ericae isolated from Camellia weiningensii roots on growth and drought resistance of C. oleifera seedlings
作者:
曹国奥1刘燕2曾维军2
1.贵州大学林学院,贵州贵阳 550009; 2.贵州省生物研究所,贵州贵阳 550009
Author(s):
Cao Guoaoet al
关键词:
威宁短柱油茶欧石楠无柄盘菌(Pezicula ericae)油茶小苗生长抗旱
Keywords:
-
分类号:
S182;S794.401
DOI:
-
文献标志码:
A
摘要:
为了探究来自威宁短柱油茶根系的内生真菌欧石楠无柄盘菌(Pezicula ericae)能否定植在油茶根系并在油茶抵御干旱胁迫的过程中发挥作用,通过离体培养、盆栽接种试验,研究欧石楠无柄盘菌菌株、接种小苗在干旱胁迫下的生长情况和生理响应。结果表明,与对照相比,低含量(5%~15%)聚乙二醇6000(PEG-6000)显著促进了菌株生长,高含量(20%~30%)PEG-6000对菌株生长的抑制作用较小,表明该菌株具有较强的耐旱性。盆栽试验结果显示,欧石楠无柄盘菌能侵染油茶根系(定植率为33.33%~44.44%),在干旱条件下接种欧石楠无柄盘菌能显著提高幼苗的生长指标(株高增加27.51%,根系生物量提高65.42%)和光合效率(净光合速率提升17.27%)。同时,接种欧石楠无柄盘菌增强了油茶苗的抗氧化酶[超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)]活性,减少了膜脂过氧化损伤(丙二醛含量降低44.07%)。此外,欧石楠无柄盘菌诱导了吲哚乙酸(IAA)、脱落酸(ABA)的积累,增加幅度分别为40.21%、13.57%,降低了赤霉素(GA)、玉米素(ZR)的水平。综上,欧石楠无柄盘菌可成功定植到油茶苗根系,并通过调控生理代谢、激素平衡有效提升油茶苗对干旱胁迫的适应性。
Abstract:
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相似文献/References:

[1]刘燕,曾维军,秦维,等.威宁短柱油茶丛枝菌根真菌和深色有隔内生真菌定殖特征及其与果实经济性状的相关性[J].江苏农业科学,2023,51(22):145.
 Liu Yan,et al.Colonization characteristics of arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE) of Camellia weiningensis and their correlations with economic characters of fruit[J].Jiangsu Agricultural Sciences,2023,51(8):145.
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备注/Memo

备注/Memo:
收稿日期:2025-07-25
基金项目:贵州省林业科技项目;贵州省林业科研项目[编号:合(2025)13号]。
作者简介:曹国奥(2001—),男,贵州六盘水人,硕士研究生,研究方向为森林培育。E-mail:2553383844@qq.com。
通信作者:刘燕,博士,研究员,研究方向土壤有益微生物。E-mail:472395057@qq.com。
更新日期/Last Update: 2026-04-20