Trees have a microbiome inside them? This is both obvious and profound

image via New Scientist

August 13, 2025, 6:00 PM

• •New research reveals that trees have a vast and diverse microbiome in their interiors.
• •The microbial communities in the sapwood and heartwood of trees are starkly different.
• •Researchers believe that these microbiomes play a role in supporting the health of trees and the wider forest.
• •A deeper understanding of tree microbiomes could help in the battle to save biodiversity and fix the climate.

Groundbreaking research reveals that trees possess a diverse and fascinating microbiome within their interiors, similar to the human body. This previously unknown microbial ecosystem inside trees is as essential to their biology as our own. The study found distinct microbial communities in the sapwood and heartwood of trees, highlighting the complexity of these internal ecosystems. Understanding tree microbiomes could be crucial in efforts to save biodiversity, combat climate change, and maintain the health of our forests.

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