Morphotype plG1 ("Glomus
T3")
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distribution in root cortex
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both inner and outer cortex layers
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auxiliary cells
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absent
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hyphae at entry point
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prominently, multiple S-shaped arrangement
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intraradical hyphae
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3 - 6 um thick, usually with prominent knobs; older hyphae often
septate
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arbuscules
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typical Glomus-type, with two base branches, usually do not fill
entire cell; scattered to frequent
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vesicles
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large, 50 - 80 um long, usually lemon-shaped with one large central
vacuole
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Abundance of large vesicles is typical for this morphotype.
A typical feature of the runner hyphae is the abundance of "oil drops"
in the thicker hyphae.
Such high abundance of arbuscules is not typical, but sometimes occurs.
Typical shape of arbuscules and "oil drops" in hyphae are again seen
on the following image:
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This page last modified by Petr Šmilauer on 14 September 2000