Data di Pubblicazione:
2008
Citazione:
Endophytic bacterial community in yellows infected and recovered grapevine plants / P. Casati, D. Bulgari, L. Brusetti, F. Quaglino, D. Daffonchio, G. Belli, P.A. Bianco. - In: JOURNAL OF PLANT PATHOLOGY. - ISSN 1125-4653. - 90:Suppl. 2(2008), pp. 460-461. (Intervento presentato al 9. convegno International Congress of Plant Pathology tenutosi a Torino nel 2008).
Abstract:
Flavescence dorée (FD) and Bois Noir (BN) are grapevine yellows
(GY) diseases that cause severe crop losses. FD is caused by
“Candidatus Phytoplasma vitis”, transmitted by the leafhopper
Scaphoideus titanus and BN is caused by “Candidatus Phytoplasma
solani” and transmitted by Hyalesthes obsoletus. Up to now,
FD control is based on chemical treatments against the insect
vector and eradication of diseased plants. Recently, great importance
has been placed on recovery, the spontaneous remission of
symptoms in GY-diseased grapevines. Its causes are still little
known although cytochemical and biochemical studies suggest
that systemic acquired resistance (SAR) might be involved. Also,
it is known that some species of bacteria are able to protect
plants against pathogens. This work has aimed to identify the endophytic
bacterial community present in Vitis vinifera L. and to
examine the possible correlation between recovery and endophytic
microrganisms. Endophytic bacteria were identified and
characterized by screening the 16S rDNA library. The sequence
data showed the presence of bacterial species belonging to the
Gamma-proteobacteria, family Enterobacteriaceae. Among them,
Pantoea agglomerans, Pantoea ananatis, Ewingella americana and
Erwinia persicina were frequently identified. In the same samples,Bacillus, Enterococcus and Curtobacterium were obtained using
cultivation-based methods. Further studies done to examine their
possible involvement in phytoplasma recovery in grapevine.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
P. Casati, D. Bulgari, L. Brusetti, F. Quaglino, D. Daffonchio, G. Belli, P.A. Bianco
Link alla scheda completa: