The effect of selected plant hormones on in vitro proliferation of hyphae of Glomus fistulosum |
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Authors: | M Gryndler H Hršelová I Chvátalová J Jansa |
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Institution: | (1) Academy of Sciences of the Czech Republic, Vídeňská 1083, Institute of Microbiology, CZ-142 20 Prague 4, Czech Republic |
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Abstract: | Effects of N6-benzyladenine, kinetin, zeatin, N6-benzyladenosine, kinetin riboside, zeatin riboside, jasmonic acid, indole-3-acetic acid, indole-3-butyric acid, indole-3-propionic
acid, abscisic acid and gibberellic acid on proliferation of hyphae of arbuscular mycorrhizal (AM) fungus Glomus fistulosum
were studied under axenic conditions in vitro. The growth of intraradical hyphae of G. fistulosum was fully suppressed by
30 μM indole-3-acetic acid, but a perceptible decrease in the proliferation of the hyphae was observed already at 3 μM. Because
such concentration is near the concentrations common in root tissues in vivo, the effect may be biologically significant.
Similar effect was also observed for Glomus mosseae. Inhibitory effects of abscisic acid and cytokinins occurred only at very
high, non-physiological concentrations. Ribosylated cytokinins showed stronger inhibition effects than their non-ribosylated
counterparts. No stimulation of proliferation of hyphae by any plant hormone tested was observed.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | abscisic acid N6-benzyladenosine gibberellic acid indole-3-acetic acid indole-3-butyric acid jasmonic acid kinetin riboside maize Zea mays zeatin riboside |
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