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ScienceQuiet 8d · day 8

Max Planck researchers reveal fungi's sugar-based spruce defense neutralization

Fungi introduced by bark beetles deactivate spruce trees' chemical defenses by binding sugar molecules, enabling beetle infestations.

newest coverage 7d agosummary written 6d ago3 pieces MastodonNewswiresGoogle News

What to know

  • Fungi neutralize spruce trees' chemical defenses by binding the sugar ribose to toxic compounds, rendering them permanently harmless.
  • Bark beetles introduce these fungi into trees to overcome spruce's defensive barriers, enabling successful colonization and infestation.
  • The discovery could lead to new forest management strategies targeting microbial communities to prevent bark beetle damage in European forests.

Max Planck Institute for Chemical Ecology Research teamRuo Sun Study lead author

Max Planck researchers reveal fungi's sugar-based spruce defense neutralization
nachrichten.idw-online.de

How it unfolded 2 developments, newest first · click a bar or a number to jump articlesposts

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Sep 17Sep 18Sep 19Sep 20Sep 21Sep 22yesterdaynow · 4:44 AM ET
  1. 1

    Bark beetles exploit fungal colonization to penetrate spruce defenses

    The research shows that fungi introduced into trees by bark beetles successfully metabolize the trees' chemical defenses and spread rapidly through bark. The most effective fungi at neutralizing spruce defenses through ribosylation thrive particularly well in spruce bark, suggesting this ability provides a crucial survival advantage. The findings could lead to new forest management methods by selectively altering microbial communities within trees.

  2. 2

    Max Planck team discovers fungi's sugar-based spruce defense neutralization

    Researchers at the Max Planck Institute for Chemical Ecology identified a previously unknown detoxification strategy where fungi bind the sugar ribose to spruce defense compounds, rendering them harmless and stable. Two species of fungi employ this ribosylation technique, which prevents the toxic substances from being reactivated.

    “We wanted to understand the biochemical tricks these fungi use to overcome such a hostile chemical environment, especially since some of these fungi may contribute to massive bark beetle infestations destroying European forests.”
    — Ruo Sun
    1. 1 outlet Fungi neutralize spruce defense mechanisms with sugar

      first by Phys.org, 7d ago