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Scientific article
English

First report of the inhibition of arbuscular mycorrhizal infection of Pisum sativum by specific and irreversible inhibition of polyamine biosynthesis or by gibberellic acid treatment

Published inFEBS letters, vol. 385, no. 3, p. 189-192
Publication date1996
Abstract

DFMO (alpha-DL-difluoromethylornithine), a specific irreversible inhibitor of ornithine decarboxylase (ODC), a polyamine biosynthetic pathway enzyme, strongly inhibits root growth and arbuscular mycorrhizal infection of Pisum sativum (P56 myc+, isogenic mutant of cv. Frisson). This inhibition is reversed when exogenous polyamine (putrescine) is included in the DFMO treatment, showing that the effect of DFMO on arbuscular mycorrhizal infection is indeed due to putrescine limitation and suggesting that ODC may have a role in root growth and mycorrhizal infection. However, treatment with gibberellic acid (GA3) which increased root titers of polyamines strongly inhibited arbuscular mycorrhizal development. The possible role of polyamines in the regulation of the development of arbuscular mycorrhizal infection is discussed.

Keywords
  • Arbuscular mycorrhizal infection
  • Putrescine
  • Polyamine biosynthesis inhibitor
  • Gibberellic acid
  • Pisum sativum
  • Glomus mosseae
Affiliation Not a UNIGE publication
Citation (ISO format)
EL GHACHTOULI, Naïma et al. First report of the inhibition of arbuscular mycorrhizal infection of Pisum sativum by specific and irreversible inhibition of polyamine biosynthesis or by gibberellic acid treatment. In: FEBS letters, 1996, vol. 385, n° 3, p. 189–192. doi: 10.1016/0014-5793(96)00379-1
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ISSN of the journal0014-5793
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