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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Novel hosts of the Eucalyptus canker pathogen Chrysoporthe cubensis and a new Chrysoporthe species from Colombia
Mycological Research, Volume 110, No. 7, Year 2006
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Description
The pathogen Chrysoporthe cubensis (formerly Cryphonectria cubensis) is best known for the important canker disease that it causes on Eucalyptus species. This fungus is also a pathogen of Syzygium aromaticum (clove), which is native to Indonesia, and like Eucalyptus, is a member of Myrtaceae. Furthermore, C. cubensis has been found on Miconia spp. native to South America and residing in Melastomataceae. Recent surveys have yielded C. cubensis isolates from new hosts, characterized in this study based on DNA sequences for the ITS and β-tubulin gene regions. These hosts include native Clidemia sericea and Rhynchanthera mexicana (Melastomataceae) in Mexico, and non-native Lagerstroemia indica (Pride of India, Lythraceae) in Cuba. Isolates from these hosts and areas group in the sub-clade of C. cubensis accommodating the South American collections of the fungus. This sub-clade also includes isolates recently collected from Eucalyptus in Cuba, which are used to epitypify C. cubensis. New host records from Southeast Asia include exotic Tibouchina urvilleana from Singapore and Thailand and native Melastoma malabathricum (Melastomataceae) in Sumatra, Indonesia. Consistent with their areas of occurrence isolates from the latter collections group in the Asian sub-clade of C. cubensis. DNA sequence comparisons of isolates from Tibouchina lepidota in Colombia revealed that they represent a new sub-clade within the greater Chrysoporthe clade. Isolates in this clade are described as Chrysoporthe inopina sp. nov., based on distinctive morphological differences. © 2006.
Authors & Co-Authors
Gryzenhout, Marieka
South Africa, Pretoria
Tree Protection Co-operative Programme
Rodas, Carlos A.
Colombia, Cali
Smurfit Cartón de Colombia, Investigación Forestal
Mena-Portales, Julio
Cuba, Rancho Boyeros
Instituto de Ecología y Sistemática, Rancho Boyeros, cu
Clegg, P. A.
Unknown Affiliation
Wingfield, Brenda D.
South Africa, Pretoria
Tree Protection Co-operative Programme
Wingfield, Michael J.
South Africa, Pretoria
Tree Protection Co-operative Programme
Statistics
Citations: 53
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.mycres.2006.02.010
ISSN:
09537562
e-ISSN:
14698102
Research Areas
Cancer
Genetics And Genomics
Study Design
Cross Sectional Study