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在不同年龄的果树中,内性树叶微生物群的组成和多样性

Jiyuan Pan¹, Qinglong Dong², Haibin Wen¹

¹College of Plant Protection, Hebei Agricultural University, No. 289 Lingyusi Street, Baoding, Hebei, China.

Molecular biotechnology

|July 31, 2023

概括

随着果树的老龄化,它们的内菌群体发生变化,可能导致衰老的有益微生物减少. 这项研究揭示了与树木年龄和健康相关的细菌属的变化.

科学领域:

植物病理学植物病理学
微生物生态学微生物生态学
农业科学农业科学

背景情况:

果树衰老是一个复杂的过程,机制不太清楚.
植物内生根球细菌在植物健康,生长和抗病能力方面发挥着至关重要的作用.
了解树木年龄对这些微生物群落的影响对于果园管理至关重要.

研究的目的:

调查果树年龄对社区结构和内菌根球细菌主导属的影响.
为了阐明与年龄相关的微生物转移在果树衰老中的作用.
提供关于老化果树中植物微生物相互作用的见解.

主要方法:

使用16SrRNA高通量测序来分析细菌群落.
采集了不同年龄 (2,8,16,22岁) 的果树样本.
社区结构,占主导地位的属和内生细菌的α多样性在各个年龄段进行了比较.

主要成果:

随着树木年龄的增加,细菌ASV数量下降,尽管α多样性保持稳定.
行动细菌的相对丰富性增加,而蛋白质细菌在类层面上减少.
像Mycobacterium和Chujaibacter这样的特定属增加了,而像Pseudomonas和Streptomyces这样的其他属的相对丰度随着树木的年龄而减少.

结论:

与植物生长和疾病耐药性相关的内性根球细菌的减少可能会导致果树衰老.
结核细菌群体中与年龄相关的变化是树木健康的重要因素.
这项研究为了解老年果树中的植物微生物相互作用提供了一个参考.

关键词:

果果果果果果果是什么意思组成构成构成多样性多样性多样性多样性固体植物性树枝球细菌树枝球细菌.树的年龄树的年龄

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