The Colletotrichum orbiculare species complex: Important pathogens of field crops and weeds

Colletotrichum orbiculare causes anthracnose of Cucurbitaceae and is phylogenetically closely related to pathogens of several other herbaceous hosts belonging to the Asteraceae , Fabaceae and Malvaceae . Most of them are known for their hemibiotrophic infection strategy and as destructive pathogens...

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Bibliographic Details
Published in:Fungal diversity 2013-07, Vol.61 (1), p.29-59
Main Authors: Damm, Ulrike, Cannon, Paul F., Liu, Fang, Barreto, Robert W., Guatimosim, Eduardo, Crous, Pedro W.
Format: Article
Language:English
Subjects:
anthracnose fungus
Biodiversity
Biomedical and Life Sciences
f-sp malvae
infection process
Life Sciences
Medical Microbiology
Microbial Ecology
Microbiology
Mycology
north india
parasitic fungi
Pathogens
Plant pathology
Plant Physiology
primer sets
protein-kinase
round-leaved mallow
sequence-analysis
Weeds
xanthium-spinosum
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Summary:Colletotrichum orbiculare causes anthracnose of Cucurbitaceae and is phylogenetically closely related to pathogens of several other herbaceous hosts belonging to the Asteraceae , Fabaceae and Malvaceae . Most of them are known for their hemibiotrophic infection strategy and as destructive pathogens either of field crops or weeds. In order to study the phylogenetic relationships of these fungi, a multilocus analysis (ITS, GAPDH, CHS-1, HIS3, ACT, TUB2, GS) of 42 strains of C . orbiculare and related species was conducted. The analysis resulted in nine clades that confirmed the four species previously known as belonging to this species complex, C . lindemuthianum , C . malvarum , C . orbiculare and C . trifolii , and recognised four new species from weeds, namely C . bidentis , C . sidae , C . spinosum and C . tebeestii . The name C . orbiculare itself is widely used in plant pathology and science, but is invalid according to current nomenclatural rules. Therefore we described a new species with the same epithet and a type specimen that agrees with our current understanding of this species, and is linked to a living culture. Following the recent epitypification of C . lindemuthianum , we chose appropriate specimens with associated strains to serve as epitypes of C . malvarum and C . trifolii , and selected an authentic specimen of C . trifolii as lectotype.
ISSN:1560-2745
1878-9129
DOI:10.1007/s13225-013-0255-4