Mating types of Phytophthora colocasiae from the Pacific region, India and South-east Asia
J. L. Tyson A C and R. A. Fullerton BA Biosecurity New Zealand, Ministry of Agriculture and Forestry, PO Box 2526, Wellington, New Zealand.
B HortResearch, Private Bag 92-169, Auckland, New Zealand.
C Corresponding author. Email: tysonj@maf.govt.nz
Australasian Plant Disease Notes 2(1) 111-112 https://doi.org/10.1071/DN07046
Submitted: 28 March 2007 Accepted: 13 July 2007 Published: 26 July 2007
Abstract
Mating type interactions were examined between 54 Phytophthora colocasiae isolates from the Pacific region, India and South-east Asia. Forty isolates were found to be A2 mating type and 14 did not form oospores with either mating type. No A1 or self-fertile isolates were found.
Acknowledgements
The authors thank L.W. Timmer for the P. nicotianae A1 and A2 tester isolates; J. Uchida for Hawaiian isolates and advice on methods; K. Engelberger, T. Gunua, D. Hunter, G. Wall, Y. R. Sharma, V. Lebot and M. Duchamp for P. colocasiae isolates from various countries. Additional isolates were collected by R.A. Fullerton. This research was funded by the New Zealand Ministry of Foreign Affairs and Trade.
Ann PJ,
Kao CW, Ko WH
(1986) Mating-type distribution of Phytophthora colocasiae in Taiwan. Mycopathologica 93, 193–194.
| Crossref | GoogleScholarGoogle Scholar |
Brenneman JA, Gallegly ME
(1967) Sexual patterns of seven species of Phytophthora. Phytopathology [Abstr.] 57, 805.
Chan E,
Milne M, Fleming E
(1998) The causes and consequences of taro leaf blight in Samoa and the implications for trade patterns in the South Pacific region. Tropical Agriculture (Trinidad) 75, 93–98.
Ho HH,
Yu Y,
Zhuang W, Liang Z
(1983) Mating types of heterothallic species of Phytophthora in China. I. Acta Mycologica Sinica 2, 187–191.
Ko WH
(1979) Mating-type distribution of Phytophthora colocasiae on the island of Hawaii. Mycologia 71, 434–437.
| Crossref | GoogleScholarGoogle Scholar |
Narula KL, Mehrotra RS
(1980) Occurrence of A1 mating type of Phytophthora colocasiae. Indian Phytopathology 33, 603–604.
Savage EJ,
Clayton CW,
Hunter JH,
Brenneman JA,
Laviola C, Gallegly ME
(1968) Homothallism, heterothallism, and interspecific hybridization in the genus Phytophthora. Phytopathology 58, 1004–1021.
Zhang KM,
Zheng FC,
Li YD,
Ann PJ, Ko WH
(1994) Isolates of Phytophthora colocasiae from Hainan Island in China: evidence suggesting an Asian origin of this species. Mycologia 86, 108–112.
| Crossref | GoogleScholarGoogle Scholar |