Imaging the invasion of rice roots by the bakanae agent Fusarium fujikuroi using a GFP-tagged isolate
Aragona, Maria (Council for Agricultural Research and Economics)
Campos-Soriano, Lidia (Centre de Recerca en Agrigenòmica)
Piombo, Edoardo (Università di Torino)
Romano, Elena (University of Rome Tor Vergata)
San Segundo, Blanca (Centre de Recerca en Agrigenòmica)
Spadaro, Davide (Università di Torino)
Infantino, Alessandro (Council for Agricultural Research and Economics)

Additional title:	Rice roots infection by gfp-tagged Fusarium fujikuroi
Date:	2021
Abstract:	Fusarium fujikuroi (teleomorph Gibberella fujikuroi) is the main seed-borne pathogen of rice, the causal agent of bakanae, a disease that in the last years has become of increasing economical concern in many Italian rice growing areas. A virulent F. fujikuroi isolate was tagged with the green fluorescent protein (gfp) gene using Agrobacterium tumefaciens mediated transformation, and the virulence of the GFP isolate has been confirmed. Little is known about the early interaction of the pathogen with its host, in this work fungal development during the F. fujikuroi/root interaction was analysed by Laser Scanning Confocal Microscopy (LSCM), by using the GFP isolate obtained. The infection of rice roots was investigated from 48 h to 8 days post-inoculation both in resistant and susceptible cultivars. Roots of resistant genotype seem to trigger a hypersensitive response at the infection site and LSCM analysis of root sections allowed the visualization of fungal growth within host tissues. Fungal growth occurred both in the resistant and the susceptible cultivar, even if it was less abundant in the resistant one. Expression analysis of Chitinase1, a gene involved in fungal pathogenesis, was investigated by qPCR on the F. fujikuroi infected rice roots. Chitinase1 expression increased greatly upon infection in the resistant cultivar Selenio.
Grants:	Ministerio de Ciencia e Innovación RTI2018-101275-B-I00 Ministerio de Economía y Competitividad SEV-2015-0533
Note:	Altres ajuts: Generalitat de Catalunya/CERCA Programme, AGER Foundation (Grant 2010-2369)
Rights:	Tots els drets reservats.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Published in:	European Journal of Plant Pathology, Vol. 161 (2021) , p. 25-36, ISSN 0929-1873

DOI: 10.1007/s10658-021-02301-z

Postprint 26 p, 1.4 MB

Supplementary material 1 11.1 KB

Supplementary material 2 10.0 KB

Supplementary material 3 2 p, 205.4 KB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
Articles > Published articles