Articles
ROOT AND BASAL STEM ROT CAUSED BY PHYTOPHTHORA NICOTIANAE ON THYME IN LIGURIA
Article number
723_69
Pages
477 – 480
Language
English
Abstract
Root and basal stem rot caused by the soil-borne pathogen Phytophthora nicotianae v.
Breda de Haan was recently observed on both Thymus vulgaris L. and T. x citriodorus (Pers.) Schreb. ex Schwei. (cvs.
Bertram Anderson, Doone Valley, Silver King and Silver Queen). In Liguria, these species are usually grown in pot and used as ornamental as well as officinal plants.
On thyme, P. nicotianae causes collar and root rot, a progressive withering of the branches and wilting of the entire plant.
The pathogen was isolated from infected tissues on a selective medium and was identified by morphological, biochemical (i.e. electrophoretic patterns of total mycelial proteins and isozymes on polyacrylamide gels) and molecular characters (i.e.
RFLP and sequence analysis if ITS regions of rDNA). Pathogenicity tests and re-isolation of P. nicotianae were carried out to fulfil Kochs postulates
Breda de Haan was recently observed on both Thymus vulgaris L. and T. x citriodorus (Pers.) Schreb. ex Schwei. (cvs.
Bertram Anderson, Doone Valley, Silver King and Silver Queen). In Liguria, these species are usually grown in pot and used as ornamental as well as officinal plants.
On thyme, P. nicotianae causes collar and root rot, a progressive withering of the branches and wilting of the entire plant.
The pathogen was isolated from infected tissues on a selective medium and was identified by morphological, biochemical (i.e. electrophoretic patterns of total mycelial proteins and isozymes on polyacrylamide gels) and molecular characters (i.e.
RFLP and sequence analysis if ITS regions of rDNA). Pathogenicity tests and re-isolation of P. nicotianae were carried out to fulfil Kochs postulates
Publication
Authors
P. Martini, S.O. Cacciola, S. Savona, G. Bozzano
Keywords
Thymus vulgaris, T. x citriodorus, identification, isozymes, rDNA ITS sequences
Online Articles (69)