RT Conference Proceedings
T1 Virulence and adaptation of Pseudomonas savastanoi to woody hosts
A1 Caballo-Ponce, Eloy
A1 Aragón Cortés, Isabel María
A1 Ramos-Rodríguez, Cayo Juan
K1 Olivo - Enfermedades y plagas
AB Pseudomonas savastanoi pv. savastanoi (Psv) is a tumour-inducing pathogen of woody hosts, causing olive (Olea europaea) knot disease. During epiphytic colonization, Psv can multiply on the surface of healthy olive leaves, and these large epiphytic populations can spread by rain, wind, insects and cultural practices, entering the plant through wounds. During the last few years, our work focused on the molecular mechanisms governing the transition from the epiphytic to the endopathogenic lifestyle in Psv. Besides confirmation of several virulence factors previously associated to P. savastanoi infections, such as the phytohormones indole-3-acetic acid and cytokinins and the type-III secretion system, we have identified several novel virulence genes and metabolic pathways required for full fitness of Psv in olive knots. Here, we will present our recent results concerning i) the characterization of a genomic region of the Psv chromosome that is absent in all sequenced P. syringae and P. savastanoi strains infecting herbaceous plants (non-lignified), but it is shared with other pathovars infecting woody hosts (lignified) and, ii) the role in virulence of two enzymes involved in the metabolism of cyclic diguanylate-GMP (c-di-GMP), which are also encoded by other Pseudomonas spp.
YR 2015
FD 2015-10-29
LK http://hdl.handle.net/10630/10624
UL http://hdl.handle.net/10630/10624
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 4 mar 2026