Journal
MYCOLOGIA
Volume 101, Issue 1, Pages 120-128Publisher
TAYLOR & FRANCIS INC
DOI: 10.3852/07-199
Keywords
Ascochyta pisi; internal transcribed spacer (ITS); Mycosphaerella pinodes; Phoma medicaginis var. pinodella; systematics
Categories
Funding
- South Australian Grains Industry Trust
- Plant Protection Services
- Malcolm Ryley Department. of Primary Industries
- Department of Agriculture and Food, Western Australia
- Pulse Breeding Australia [WAPEA221]
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Phoma koolunga sp. nov. is described, having been isolated from ascochyta blight lesions oil 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: Ascochyla pinodes), Phoma medicaginis var. pinodella and Ascochyta pisi. Under controlled conditions the symptoms Oil pea seedlings caused by R koolunga were indistinguishable from those caused by M. Pinodes, other than a 24 h delay in disease development. Isolates of R koolunga. differed ill (lie severity of disease caused Oil pea seedlings.
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