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Morphological aspects of mitospore secession in Cercosporella ugandensis

Published online by Cambridge University Press:  17 January 2001

Ninoska PONS  and
Brian C. SUTTON
Ninoska PONS
Affiliation:
Centro Nacional de Investigaciones Agropecuarias (CENIAP), Departamento de Protecion Vegetal, Apolo. 4653, Maracay 2101, Aragua, Venezuela Present address: El Milagro, Calle F, No 3, Maracay 2101, Aragua, Venezuela. E-mail: [email protected]
Brian C. SUTTON
Affiliation:
Apple Tree Cottage, Blackheath, Wenhaston, Suffolk IP19 9HD, UK
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Abstract

Results of a transmission and scanning electron microscopy study of the mitosporogenous process in Cercosporella ugandensis are given. The details hitherto deduced from light microscopy concerning mitospore initiation, maturation and secession are confirmed. In addition, an ultrastructural basis, in terms of wall layer deposition, is provided for mitospore maturation, scar structure and development, and mitospore secession. This implies a quite separate mode of delimitation and liberation in comparison to other fungi in the Cercospora-like generic assemblage.

Type
Research Article
Information
Mycological Research , Volume 104 , Issue 12 , December 2000 , pp. 1501 - 1506
Copyright
© The British Mycological Society 2000

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