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Updated: Jun 24, 2026

Microscopy Techniques for Interpreting Fungal Colonization in Mycoheterotrophic Plants Tissues and Symbiotic Germination of Seeds
Published on: May 17, 2022
Arbuscular, ecto-related, orchid mycorrhizas--three independent structural lineages towards mycoheterotrophy:
1Spezielle Botanik und Mykologie, Fachbereich Biologie, Philipps-Universität, 35032, Marburg, Germany. imhof@staff.uni-marburg.de.
Abstract:
The classification of mycorrhizas in seven equally ranked types glosses over differences and similarities and, in particular, does not acknowledge the structural diversity of arbuscular mycorrhizas. This article emphasizes the parallel continua of ecto-related mycorrhizas and arbuscular mycorrhizas, exemplified within Ericaceae and Gentianales, respectively, as well as the proprietary development of orchid mycorrhizas, all three of which have independently developed mycoheterotrophic plants. A hierarchical classification according to structural similarities is suggested.
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