Abstract/Details

Identification et analyse de marqueurs génétiques diagnostiques de deux champignons de rouille des pins durs (Cronartium comptoniae et Peridermium harknessii) et identification d'un hyperparasite de ces rouilles au Québec

St-Michel, Etienne.  Universite Laval (Canada). ProQuest Dissertations Publishing, 2004. MQ92222.

Abstract (summary)

Fungi responsible for rust of two-needle pines cause serious problems in the province of Québec because of their negative actions on tree growth and thus on the economic value of our forest. The development of molecular diagnostic tools for these pathogens should help us, in the future, to detect infected seedlings before symptoms become visible. This will help to avoid the sending of infected seedlings on the field and thus the propagation of rust pathogens. Two species of rust fungi are described in this study, the autoecious rust Peridermium harknessii and the heteroecious rust Cronartium comptoniae. Molecular markers diagnostic for each species were developed with the ribosomal DNA region ITS 1 and the coding gene of Actin. In the course of this investigation on rust DNA, another fungus was isolated and described since its DNA was found in several samples. This fungus, Cladosporium tenuissimum, is a hyperparasite of rust fungi and is described for the first time associated with rust fungi in North America.

Indexing (details)


Subject
Molecular biology;
Forestry;
Plant pathology
Classification
0307: Molecular biology
0478: Forestry
0480: Plant pathology
Identifier / keyword
Biological sciences; Cladosporium tenuissimum; French and English text
Title
Identification et analyse de marqueurs génétiques diagnostiques de deux champignons de rouille des pins durs (Cronartium comptoniae et Peridermium harknessii) et identification d'un hyperparasite de ces rouilles au Québec
Author
St-Michel, Etienne
Number of pages
119
Degree date
2004
School code
0726
Source
MAI 43/01M, Masters Abstracts International
Place of publication
Ann Arbor
Country of publication
United States
ISBN
978-0-612-92222-8
Advisor
Bernier, Louis
University/institution
Universite Laval (Canada)
University location
Canada
Degree
M.Sc.
Source type
Dissertation or Thesis
Language
English, French
Document type
Dissertation/Thesis
Dissertation/thesis number
MQ92222
ProQuest document ID
305083986
Copyright
Database copyright ProQuest LLC; ProQuest does not claim copyright in the individual underlying works.
Document URL
https://www.proquest.com/docview/305083986/abstract