May
2000
, Volume
84
, Number
5
Pages
510
-
512
Authors
Z. Q.
Yuan
,
School of Agricultural Science, University of Tasmania, GPO Box 252-54, Hobart, Tasmania 7001, Australia, and CSIRO Forestry and Forest Products, Tasmanian Research Centre, GPO Box 252-12, Hobart, Tasmania 7001, Australia
;
T.
Wardlaw
,
Forestry Tasmania, GPO Box 207B, Hobart, Tasmania 7001, Australia
; and
C.
Mohammed
,
School of Agricultural Science, University of Tasmania, GPO Box 252-54, Hobart, Tasmania 7001, Australia, and CSIRO Forestry and Forest Products, Tasmanian Research Centre, GPO Box 252-12, Hobart, Tasmania 7001, Australia
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Accepted for publication 28 December 1999.
Abstract
ABSTRACT
A mitosporic fungus with small conidia was frequently isolated from blighted shoots and leaves of young plantation trees and nursery seedlings of Eucalyptus nitens and E. globulus in Tasmania. Lesions on these shoots and leaves are purple to light brown, becoming necrotic with well-defined margins. The fungus is characterized by having acervular conidiomata, cylindrical to lageniform monophialidic conidiogenous cells, and spheroid to pyriform conidia that are hyaline, aseptate, and often produced in chains. The morphological characteristics fit the published description for the genus Gloeosporidina. This is the first record of a member in the genus from Australia and the first time a Gloeosporidina species has been found on eucalypts.
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© 2000 The American Phytopathological Society
