|本期目录/Table of Contents|

[1]杨艳伶,程亮,朱海霞,等.出芽短梗霉菌株PA-2侵染下藜光合作用和防御相关基因的表达分析[J].江苏农业科学,2025,53(6):56-63.
 Yang Yanling,et al.Expression analysis of quinoa photosynthesis and defense-related genes under infestation of Mycosphaerella galloprovincialis strain PA-2[J].Jiangsu Agricultural Sciences,2025,53(6):56-63.
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出芽短梗霉菌株PA-2侵染下藜光合作用和防御相关基因的表达分析(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第53卷
期数:
2025年第6期
页码:
56-63
栏目:
生物技术
出版日期:
2025-03-20

文章信息/Info

Title:
Expression analysis of quinoa photosynthesis and defense-related genes under infestation of Mycosphaerella galloprovincialis strain PA-2
作者:
杨艳伶12程亮12朱海霞12李娟12王信1刘晓芳12郭青云12
1.青海大学,青海西宁 810016; 2.青海省农业有害生物综合治理重点实验室,青海西宁 810016
Author(s):
Yang Yanlinget al
关键词:
出芽短梗霉菌株实时荧光定量PCR表达分析光合作用
Keywords:
-
分类号:
S182;S451
DOI:
-
文献标志码:
A
摘要:
为了研究出芽短梗霉菌株PA-2侵染藜过程中光合作用和防御相关基因表达的变化规律,揭示出芽短梗霉菌的侵染机制,以藜幼苗为试验材料,通过喷雾接种出芽短梗霉菌株PA-2的孢子悬浮液(含有孢子106~108个/mL),分别于侵染0、24、72、120、168 h(侵染对象为藜叶片及空白对照的根、茎、叶)后取样,用qRT-PCR技术检测藜光合作用(psaA、psaL、psaN、psaG)和防御(SOD、PAL、PPO、CAT)相关基因的表达情况。结果表明,侵染藜后,藜光合相关基因、防御相关基因在不同组织中的表达水平存在明显差异,4个光合基因成员在叶中均有大量表达,表达量显著高于茎、根。而防御相关的基因在藜叶片、茎中表达量最高的基因是CAT,显著高于其在根中的表达量。在根中表达量最高的基因是PAL、PPO,两者表达量相差不大,SOD基因在茎中的表达量最低。与CK相比,随着PA-2侵染时间的延长,psaA、psaL、psaN基因的表达水平均显著下调,且在整个侵染周期内保持低水平表达,而psaG基因表达水平呈“下降—上调”的趋势,在处理168 h时相对表达量略有回升。与CK相比,CAT、PPO基因表达水平均显著下调,PAL基因表达水平显著上调,SOD基因在整个侵染周期的波动较大,呈现“下降—上调—下降”表达的趋势。由研究结果可知,藜能通过诱导光合作用、防御相关基因的差异表达来调控光合活性及防御活性,以响应PA-2的侵染。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2024-04-09
基金项目:青海省自然科学基金面上项目(编号:2022-ZJ-911)。
作者简介:杨艳伶(1997—),女,贵州遵义人,硕士研究生,研究方向为植物保护。E-mai:2485400630@qq.com。
通信作者:郭青云,硕士,研究员,主要从事农田杂草生物防治工作。E-mail:guoqingyunqh@163.com。
更新日期/Last Update: 2025-03-20