Investigations on epiphytic living Pseudomonas species from Malus domestica with an antagonistic effect to Venturia inaequalis on isolated plant cuticle membranes.
Environ Microbiol
; 6(11): 1149-58, 2004 Nov.
Article
em En
| MEDLINE
| ID: mdl-15479248
ABSTRACT
In order to understand better the survival and mutual interaction of epiphytic bacteria and fungi on apple plants, bacteria collected from these plants were cultivated on intact adaxial, stoma free cuticle membranes originally obtained from apple. The bacteria were labelled with luciferase genes from Vibrio harveyi in order to follow up their development and activity on the isolated cuticles. Our finding was that the epiphytic bacteria can have access to nutrients below the cuticle without causing damage to these cuticular membranes. Bacterial proteins may enable this nutrient mobilization and we found, indeed, that more than 46 proteins that must have been delivered by the bacteria in response to interaction with the cuticles as they could be found below the cuticle membrane. Eight major representatives of this group of external proteins have been sequenced with electron spray quadrupole time of flight mass spectrometry and subsequently identified by data base homology search as a flagellin, a porin type protein and proteins that are involved in amino acid recruitment and metabolism.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pseudomonas
/
Ascomicetos
/
Malus
/
Antibiose
Tipo de estudo:
Prognostic_studies
Idioma:
En
Ano de publicação:
2004
Tipo de documento:
Article