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Batcheloromyces species occurring on Proteaceae in South Africa

Published online by Cambridge University Press:  01 November 1999

J. E. TAYLOR ,
P. W. CROUS  and
M. J. WINGFIELD
J. E. TAYLOR
Affiliation:
Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
P. W. CROUS
Affiliation:
Department of Plant Pathology, University of Stellenbosch, Private Bag X1, Matieland 7602, South Africa
M. J. WINGFIELD
Affiliation:
Forestry and Agricultural Biotechnology Institute (F.A.B.I.), University of Pretoria, Pretoria 0002, South Africa
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Abstract

Batcheloromyces spp. are dematiaceous hyphomycetes which cause leaf spots on members of the Proteaceae in South Africa. The leaf spots are non-necrotic and composed of numerous sporodochial conidiomata. Conidiogenesis is holoblastic with percurrent, enteroblastic proliferation producing conidiogenous cells with ragged and irregular annellations. Brown, verrucose, aseptate and multiseptate conidia are produced. Conidia produced percurrently, can remain adhered to each other in fragile chains, disarticulating to produce aseptate conidia or, in some cases, they remain as multiseptate conidia where further schizolytic cleavage, at the delimiting septa, may or may not occur. This paper compares Batcheloromyces with the morphologically similar Stigmina, discusses the current members of Batcheloromyces and introduces the new species B. leucospermi.

Type
Research Article
Information
Mycological Research , Volume 103 , Issue 11 , November 1999 , pp. 1478 - 1484
Copyright
The British Mycological Society 1999

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