Skip to Main content Skip to Navigation
Journal articles

Sl-IAA27 gene expression is induced during arbuscular mycorrhizal symbiosis in tomato and in Medicago truncatula

Abstract : Aux/IAA genes play a pivotal role in auxin transcriptional regulation. Their functions were mainly studied in Arabidopsis through analysis of gain-of-function mutants. In the tomato, the Solanaceae reference species, different studies on Sl-IAA down-regulated lines showed specific role for Sl-IAA genes. Our recent work revealed that the Sl-IAA 27 gene displays a distinct behavior compared with most Aux/IAA genes, being down-regulated by auxin. Interestingly, the silencing of Sl-IAA27 leads to altered chlorophyll accumulation in leaves, reduced fertilization, altered fruit development and altered root formation. Here we report that IAA27 could be a key auxin signaling gene involved in AM in tomato and also in Medicago model plant. Indeed both Sl-IAA27 and its closest homolog in Medicago truncatula, Mt-IAA27, are overexpressed in mycorrhized roots. These data are in line with the putative role of auxin in arbuscular mycorrhization.
Complete list of metadatas

Cited literature [20 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-00983027
Contributor : Open Archive Toulouse Archive Ouverte (oatao) <>
Submitted on : Thursday, April 24, 2014 - 4:24:46 PM
Last modification on : Tuesday, August 25, 2020 - 9:34:02 AM
Long-term archiving on: : Thursday, July 24, 2014 - 11:36:47 AM

File

Bassa_11382.pdf
Files produced by the author(s)

Identifiers

Collections

Citation

Carole Bassa, Mohammad Etemadi, Jean-Philippe Combier, Mondher Bouzayen, Corinne Audran-Delalande. Sl-IAA27 gene expression is induced during arbuscular mycorrhizal symbiosis in tomato and in Medicago truncatula. Plant Signaling and Behavior, Taylor & Francis, 2013, vol. 8 (10), pp. e25637-1-e25637-3. ⟨10.4161/psb.25637⟩. ⟨hal-00983027⟩

Share

Metrics

Record views

321

Files downloads

233