Effect of inoculating three strains of arbuscular mycorhizal fungi on potato (Solanum tuberosum) vitroplant acclimatization

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Yakelín Rodríguez

Abstract

The influence of three strains of arbuscular
mycorrhizal fungi (Glomus claroideum, Glomus mosseae and
Glomus sp) on potato vitroplant acclimatization, clon 6-457,
was studied. The percentages of mycorrhizal colonization and
fungal density, as well as the growth variables: plant height,
leaf number, nodal cutting number, and plant survival, were
determined. Besides, leaf peroxidase and polyphenoloxidase
activities and their isoenzyme expression were analyzed. In
general, a positive effect of Glomus sp and G. claroideum strains
on potato vitroplants was observed, Glomus sp-inoculated
treatment being remarkable for the superior values recorded in
fungal and growth variables evaluated. Indeed, enzymatic
activities were repressed by Glomus sp, suggesting a minor
stress of potato plants inoculated with this strain, as well as a
better acclimatization in this stage. Isoenzymatic patterns did
not show mycorrhization effect, due to differences among
treatments were not detected and a new symbiosis-specific
isoform was not expressed either.

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How to Cite
Rodríguez, Y. (2013). Effect of inoculating three strains of arbuscular mycorhizal fungi on potato (Solanum tuberosum) vitroplant acclimatization. Cultivos Tropicales, 27(1), 19–24. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/393
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Original Article

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