Document Detail

Genetic variability of Cercospora coffeicola from organic and conventional coffee plantings, characterized by vegetative compatibility.
MedLine Citation:
PMID:  18943409     Owner:  NLM     Status:  MEDLINE    
Cercospora leaf spot is a destructive fungal disease that has become a threat to the coffee industry in Brazil. Nevertheless, little is known about populations of its causal agent, Cercospora coffeicola. We evaluated the potential of using nitrogen-nonutilizing (nit) mutants and vegetative compatibility groups (VCGs) to characterize the genetic variability of the C. coffeicola population associated with coffee plantings in Minas Gerais state (MG), Brazil. A total of 90 monosporic isolates were obtained from samples collected according to a hierarchical sampling scheme: (i) state geographical regions (Sul, Mata, and Triângulo), and (ii) production systems (conventional and organic). Nit mutants were obtained and 28 VCGs were identified. The 10 largest VCGs included 72.31% of all isolates, whereas each of the remaining 18 VCGs included 1.54% of the isolates. Isolates of the largest VCGs were found in the three regions sampled. Based on the frequencies of VCGs at each sampled level, we estimated the Shannon diversity index, as well as its richness and evenness components. Genetic variability was high at all hierarchical levels, and a high number of VCGs was found in populations of C. coffeicola associated with both conventional and organic coffee plantings.
R B Martins; L A Maffia; E S G Mizubuti
Related Documents :
23014859 - The influence of climate change on the global distribution and fate processes of anthro...
24650229 - Pharmacological importance of an ethnobotanical plant: capsicum annuum l.
24468329 - Interaction between forest biodiversity and people's use of forest resources in roviana...
23474799 - A case-study on the accuracy of mass balances for xenobiotics in full-scale wastewater ...
23380449 - Expression of a rice lambda class of glutathione s-transferase, osgstl2, in arabidopsis...
23639099 - A biomarker based on gene expression indicates plant water status in controlled and nat...
25408229 - Penicibilaenes a and b, sesquiterpenes with a tricyclo[,5)]dodecane skeleton f...
24414409 - Ecology and habitats of extremophiles.
23606589 - Iron oxidation stimulates organic matter decomposition in humid tropical forest soils.
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Phytopathology     Volume:  98     ISSN:  0031-949X     ISO Abbreviation:  Phytopathology     Publication Date:  2008 Nov 
Date Detail:
Created Date:  2008-10-23     Completed Date:  2009-03-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9427222     Medline TA:  Phytopathology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1205-11     Citation Subset:  IM    
Departamento de Fitopatologia, Unviersidade Federal de Viçosa, MG, Brazil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Ascomycota / genetics*,  isolation & purification,  pathogenicity
Coffea / microbiology*
Genetic Variation
Plant Diseases / microbiology*
Species Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Citrus viroid V: occurrence, host range, diagnosis, and identification of new variants.
Next Document:  Curly top survey in the Western United States.