Four hundred-million-year-old vesicular arbuscular mycorrhizae.

DOI Web Site 被引用文献37件
  • W Remy
    Forschungsstelle für Paläobotanik, Westfälische Wilhelms-Universität, Münster, Germany.
  • T N Taylor
    Forschungsstelle für Paläobotanik, Westfälische Wilhelms-Universität, Münster, Germany.
  • H Hass
    Forschungsstelle für Paläobotanik, Westfälische Wilhelms-Universität, Münster, Germany.
  • H Kerp
    Forschungsstelle für Paläobotanik, Westfälische Wilhelms-Universität, Münster, Germany.

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<jats:p>The discovery of arbuscules in Aglaophyton major, an Early Devonian land plant, provides unequivocal evidence that mycorrhizae were established >400 million years ago. Nonseptate hyphac and arbuscules occur in a specialized meristematic region of the cortex that continually provided new cells for fungal infection. Arbuscules are morphologically identical to those of living arbuscular mycorrhizae in consisting of a basal trunk and repeatedly branched bush-like tuft within the plant cell. Although interpretations of the evolution of mycorrhizal mutualisms continue to be speculative, the existence of arbuscules in the Early Devonian indicates that nutrient transfer mutualism may have been in existence when plants invaded the land.</jats:p>

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