植物内微生物异质的时间模式在不同的生态区内,在种植的森林砍伐后,在Panax人参的根系内
Zhenting Shi1, Limin Yang1, Meiling Yang1
1Cultivation Base of State Key Laboratory for Ecological Restoration and Ecosystem Management, College of Traditional Chinese Medicine, Jilin Agricultural University, Changchun, China.
Frontiers in microbiology
|May 17, 2024
概括
人参根微生物群落,特别是纤维根中的细菌,随着种植年龄的变化而变化,影响植物生长,并可能为农业提供有益的微生物. 这项研究揭示了内植物植物的变化及其与土壤条件的关系.
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:
- 人参根中的微生物群落显著影响产量和质量.
- 了解根内生菌微生物群落在种植期间的动态是至关重要的,但仍然未被充分探索.
研究的目的:
- 在第四年和第五年的种植期间,调查人参树叶,花叶和纤维根中的微生物社区变异.
- 确定关键的微生物变化及其与土壤特性和植物代谢物相关.
主要方法:
- 使用高通量测序 (16S rDNA和ITS) 来分析细菌和真菌群落的特征.
- 评估了土壤的物理化学特性和酶活性.
- 进行了9种单独的氨酸的量化.
主要成果:
- 栽培年显著影响纤维根的内菌细菌多样性,在第五年观察到的多样性更高.
- 主导细菌包括蛋白质细菌和菌; 主导的真菌是阿斯科米科塔和巴西迪奥米科塔.
- 像Bradyrhizobium,Agrobacterium和Bacillus这样的特定品种随着种植年数的增加而增加,显示出作为有益微生物的潜力.
结论:
- 人参根中的微生物群落结构随着长期栽培而发生变化,特别是在纤维根中.
- 土壤的物理化学特性 (AN,TK,OP,SWC,EC) 是内生植物群的关键驱动因素.
- 鉴定了诸如Bradyrhizobium,Agrobacterium和Bacillus等有益细菌,为人参种植增强提供了潜在的潜力.
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