Recherche Agronomique
Volume 2, Numéro 3, Pages 1-8
1998-12-03
The Ecological Significance Of Toxin Production By Pseudomonas Syringae Pv. Tabaci In Soil And Rhizosphere.
Authors : Harzallah, D, . Larous, L. .
Abstract
Pseudomonas Syringae pv. tabaci is the causal agent of the wildfire disease of tobacco (Nicotiana spp.). It produces the clhorosis-inducing tabtoxin. The main aim of this research was to identify the role of tabtoxin production in the ecology and survira! of Pseudomonas Syringae pv. tabaci, in natural environ-ments. Experimental approach of this problem involved a comparison of the grow-th in soil and in the rhizosphere of wild-type strain of pv. tabaci [Tor ] with mutant that did not produce tabtoxin [Tor]. These strains are suitably marked with anti-biotic resistance. The Tox+ strain had no significant advantage over the Tor strain in sterile soi!, unsterile soil and in the rhizosphere.
Keywords
Pseudomonas syringae pv. tabaci, Soil, Rhizosphere, Tabtoxin.
Les articles similaires
بوسالم أحلام
.
عابد يوسف
.
ص 117-132.
Yahia Zeghoudi
.
pages 74-88.
Said Houari Amel
.
pages 257-268.
Benchouk A.
.
Chibani A.
.
pages 713-726.
Mekersi Nawal
.
Kadi Kenza
.
Addad Dalila
.
Amari Asma
.
Lekmine Sabrina
.
pages 17-22.
