Piriformospora indica, a cultivable plant-growth-promoting root endophyte - PubMed (original) (raw)

Piriformospora indica, a cultivable plant-growth-promoting root endophyte

A Varma et al. Appl Environ Microbiol. 1999 Jun.

Abstract

Piriformospora indica (Hymenomycetes, Basidiomycota) is a newly described cultivable endophyte that colonizes roots. Inoculation with the fungus and application of fungal culture filtrate promotes plant growth and biomass production. Due to its ease of culture, this fungus provides a model organism for the study of beneficial plant-microbe interactions and a new tool for improving plant production systems.

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Figures

FIG. 1

FIG. 1

Plant colonization by P. indica. Maize plants were inoculated with P. indica. Roots were harvested 4 (A), 7 (B), and 16 (C and D) days after inoculation, stained, and observed by light microscopy. Bars, 10 μm. (A) A fungal appressorium attached to the root surface. Arrow 1 indicates a hypha leading to the appressorium; arrow 2 indicates a hypha leading away from the appressorium into the plant. (B) A root segment showing intercellular hyphae. Arrows indicate plant cell walls. (C) Cortical cells with coiled and branched intracellular hyphae. (D) Cortical cells showing round bodies.

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