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Type: Journal article
Title: A new species of Phoma causes ascochyta blight symptoms on field peas (Pisum sativum) in South Australia
Author: Davidson, J.
Hartley, D.
Priest, M.
Herdina, M.
McKay, A.
Scott, E.
Citation: Mycologia, 2009; 101(1):120-128
Publisher: New York Botanical Garden
Issue Date: 2009
ISSN: 0027-5514
Statement of
J.A. Davidson, D. Hartley, M. Priest, M. Krysinska-Kaczmarek, Herdina, A. McKay and E.S. Scott
Abstract: Phoma koolunga sp. nov. is described, having been isolated from ascochyta blight lesions on field pea (Pisum sativum) in South Australia. The species is described morphologically and sequences of the internal transcribed spacer region compared with those of the accepted pathogens causing ascochyta blight of field peas. P. koolunga was distinct from Mycosphaerella pinodes (anamorph: Ascochyta pinodes), Phoma medicaginis var. pinodella and Ascochyta pisi. Under controlled conditions the symptoms on pea seedlings caused by P. koolunga were indistinguishable from those caused by M. pinodes, other than a 24 h delay in disease development. Isolates of P. koolunga differed in the severity of disease caused on pea seedlings.
Keywords: Ascochyta pisi, internal transcribed spacer (ITS), Mycosphaerella pinodes, Phoma medicaginis var. pinodella, systematics
Description: © 2009 by The Mycological Society of America
RMID: 0020090269
DOI: 10.3852/07-199
Appears in Collections:Agriculture, Food and Wine publications

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