不极其塑性:测试真菌菌中的形态塑性的极限,以应对土壤侵蚀者
Carlos A Aguilar-Trigueros1,2,3, Lynne Boddy4, Mark D Fricker5
1Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland.
Ecology letters
|December 4, 2025
概括
的形态表现出有限的,物种特异性的可塑性,以响应牧草动物,挑战模块化生物极端适应性的假设. 这一发现对理解真菌进化和生态功能预测产生了影响.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 菌类学 菌类学是指菌类学.
背景情况:
- 模块化生物,如真菌,被认为具有高的形态可塑性.
- 假设这种可塑性源于独立模块对环境变化的局部反应.
- 然而,对这种极端可塑性的实验证据,尤其是真菌的实验证据,仍然很少.
研究的目的:
- 实验测试真菌在暴露于牧草动物时的形态可塑性的程度.
- 调查真菌形态是否汇聚到一种常见的抗放牧形式或表现出特定物种的反应.
- 改进关于模块化生物的可塑性及其对生态功能的影响的假设.
主要方法:
- 在放牧压力下,不同真菌物种的量化形态可塑性.
- 评估了已知会影响真菌健康的食草动物对真菌形态的影响.
- 与两个假设对比观察到的塑性反应:一种耐放牧表型的融合进化与特定物种的塑性.
主要成果:
- 发现,真菌中草原诱导的形态可塑性是有限的,并且在物种之间存在显著的差异.
- 反驳了极端的假设,趋向于一种抗放牧的表型的融合可塑性.
- 证明了物种特异性反应比以前假设的更为具有真菌可塑性的特征.
结论:
- 的形态可塑性比人们通常认为的更细致,不那么极端,即使面对像放牧这样的强有力的选择性压力.
- 菌的模块化不一定转化为普遍的,高水平的表型可塑性.
- 由于有限的可塑性,真菌的形态特征可能不那么可靠,作为生态功能的直接预测因素.
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