2026-03-11 マックス・プランク研究所
<関連情報>
- https://www.mpg.de/26244963/friendly-fungi-hijack-plant-regulator-to-promote-symbiosis
- https://www.nature.com/articles/s41477-026-02247-2
界間RNA干渉はアーバスキュラー菌根の発達を促進する Cross-kingdom RNA interference promotes arbuscular mycorrhiza development
Annika Usländer,Manisha V. Haag,An-Po Cheng,Bernhard Lederer,Jin Yan Khoo,Florian Dunker,Ivan F. Acosta,Arne Weiberg & Caroline Gutjahr
Nature Plants Published:11 March 2026
DOI:https://doi.org/10.1038/s41477-026-02247-2

Abstract
Cross-kingdom RNA interference is an emerging concept in plant–pathogen interactions. Here we provide evidence that cross-kingdom RNA interference also occurs in a beneficial plant symbiosis called arbuscular mycorrhiza. The arbuscular mycorrhizal fungus Rhizophagus irregularis transfers small RNAs into plant cells, promoting the colonization of host roots. This finding establishes inter-organismal RNA communication as a new regulatory mechanism of this ancient and widespread symbiosis.


