两种橄树品种的年度发育周期中的地面和地下微生物群
Myrsini Kakagianni1,2, Myrto Tsiknia3, Maria Feka1
1Department of Biochemistry and Biotechnology, Laboratory of Plant and Environmental Biotechnology, University of Thessaly, Larissa 41500, Greece.
FEMS microbes
|June 19, 2023
概括
橄树在根部与地面部分之间拥有独特的微生物群落,根部微生物群体表现出特定位置和季节稳定的特征. 分享的微生物可能会增强橄树的耐压力.
科学领域:
- 微生物学 微生物学
- 植物科学 植物科学
- 农业科学 农业科学
背景情况:
- 橄种植在地中海地区至关重要,具有不同的基因型和位置.
- 了解橄树微生物组对于植物健康和生产力至关重要,但缺乏全面的知识.
- 微生物群落是植物健康和生产力的关键决定因素.
研究的目的:
- 描述橄树中的原生菌,真菌和树状菌根真菌 (AMF) 微生物群.
- 调查不同植物区 (地下和地表) 和发育阶段的微生物群变异.
- 为了比较两个橄品种 ("Koroneiki"和"Chondrolia Chalkidikis") 在希腊不同地区之间的微生物群.
主要方法:
- 从两种橄品种的五个发育阶段采集了根球土壤,根,花球和肉球的样本.
- 分析不同植物区和地点的 prokaryotic,真菌和 AMF 社区.
- 对微生物群落结构和稳定性在时间和品种/位置之间进行比较分析.
主要成果:
- 在地面上方和地下植物部位中发现了不同的微生物群落.
- 地下微生物组是特定于地点的,而地面微生物组在品种/地点之间是相似的.
- 根微生物组季节性稳定,而其他区块显示时间变化.
- 橄根表现出一种AMF特有的过效应,导致同质的AMF社区.
- 确定了具有潜在耐压功能的共享细菌和真菌种群.
结论:
- 橄树微生物组的组成在地表和地底两部分之间存在很大差异,并受到位置和季节的影响.
- 根源对AMF社区施加选择性压力,导致专门的内部社区.
- 鉴定的共享微生物成员可能在增强橄树对环境压力的抵抗力方面发挥作用.
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