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根微生物组的动态有利于在松树苗发育过程中缓慢生长的策略

Chenyu Sun^1,2, Cong Wang^2,3, Huanhuan Zhu^2,3

¹College of Life Sciences, Shandong Agricultural University, Taian, 271018, Shandong, China.

ISME communications

|February 20, 2026

概括

松树根中的细菌特征在幼苗发育过程中从快速增长转变为缓慢增长的战略. 这种特征介导的组合会影响早期根微生物组的动态和生态系统的稳定性.

科学领域:

生态生态学生态生态学
微生物学微生物学
森林科学森林科学森林科学

背景情况:

微生物的功能特征对于森林生态系统的发展和稳定性至关重要,但在幼苗阶段人们对其了解甚少.
研究早期森林生态系统中的这些动态对于理解长期生态过程至关重要.

研究的目的:

在整个生长季节调查亚热带 *Pinus massoniana* 苗木的根和叶微生物组中的细菌基因组特征的动态.
了解特征介导组合在塑造早期根微生物组组成和功能中的作用.

主要方法:

在一个生长季节中,从 *Pinus massoniana* 苗木中长度取样叶子和根相关细菌.
细菌基因组特征的分析,包括基因组大小和核糖体RNA操作拷贝数 (RRN).
预测的固定潜力的比较与*nifH*基因的定量PCR (qPCR) 测量.

主要成果:

根相关细菌在基因组特征中表现出显著的时间转变,基因组大小增加和RRN拷贝数量减少,表明转向更慢的生长策略.
与叶子相关的细菌在其功能特征中表现出最小的时间变化.
添加气并没有影响根相关细菌的平均基因组大小的增加.
在预测和量化测量的固定潜力之间观察到差异,突出了功能推断方法的局限性.

结论:

特征介导组合是松树苗中早期根微生物组动态的重要驱动因素.
细菌特征的时间动态反映了具有不同生长策略和环境敏感性的分类种的连续性.
准确的微生物群落的功能推断需要暂时解决的数据和分子方法的基础验证.

关键词:

基因组特征的基因组特征添加的补充是的添加.种植苗的种子种子时间动态时间动态

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