Mycologia (2009) 101, 120-128

J.A. Davidson, D. Hartley, M. Priest, M. Krysinska-Kaczmarek, Herdina, A. McKay and E.S. Scott (2009)
A new species of Phoma causes ascochyta blight symptoms on field peas (Pisum sativum) in South Australia
Mycologia 101 (1), 120-128
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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jenny A. Davidson, Eileen S. Scott, Herdina

Research topic(s) for pests/diseases/weeds:
identification/taxonomy
general biology - morphology - evolution

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Ascochyta koolunga	Pea (Pisum sativum)	Australia (South+SE)