Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY)   SPRING-SUMMER 2006 , Volume 6 , Number 1-2; Page(s) 675 To 684.
 
Paper: 

STUDY OF POLYGALACTURONASE ACTIVITY AND GENETIC DIVERSITY OF FORTY-TWO IRANIAN ISOLATES OF ASCOCHYTA RABIEI

 
 
Author(s):  HOSSEINZADEH KOLAGAR A., ZAMANI M.R., MOTALEBI M.
 
* 
 
Abstract: 

Ascochyta rabiei is one of the devastaining fungi pathogens of chick-pea (Cicer arietinum L.) crops. In the present investigation, forty-two Iranian isolates of Ascochyta rabiei fungi (including highly, weakly and moderate virulent isolates), whose pathogenisities were determined previously, were studied.
Polygalacturonase is a main factor in the initiation of Ascochyta blight disease: Therefore fungi were cultured in Pectic Zymogram/ PZ (with pH 4.5) medium for six days. PG presence in culture media confirmed by test plate. Polygalactoronase/ PG activity assayed by Collmer methods. Clustring of isolates based on PG activity were performed by UPGMA (Unweighted pair grouped method by arithmatic average) method. Results indicated that PG activity differentiated RV from WV isolates from any province.
Another study, DNA were extracted from mycelium by Dellaporta method, RAPD (Random Amplified Polymorphic DNA) reactions were performed by twelve arbitrary 9-10-mer primers. DNA polymorphism was studied in PCR products of the isolates using UPGMA method. Results showed that, the DNA amplification by RAPD (Ar171 and Ar082 primers) obtained high polymorphic pattern. On the other hand, genetic variability between isolates of A. rabiei was detectable but polymorphic pattern of these primers did not differentiate RV from WV isolates.

 
Keyword(s): 
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 69
 
Latest on Blog
Enter SID Blog