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Science 16 September 2005:
Vol. 309. no. 5742, p. 1828
DOI: 10.1126/science.1114756
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Characterization of a Phytophthora Mating Hormone

Jianhua Qi, Tomoyo Asano, Masashi Jinno, Kouhei Matsui, Keisuke Atsumi, Youji Sakagami, Makoto Ojika*

Water molds of the genus Phytophthora include many plant pathogens responsible for epidemics such as potato blight and sudden oak death, causing global economic damages. Sexual reproduction is of biological importance in Phytophthora and has been believed to be stimulated by unknown endogenous factors named a hormones. We describe here the chemical characterization of a Phytophthora mating hormone, a1, which was obtained from ~2 tons of culture fluid of one mating type of a species and which induced sexual spores on the counter-mating type at a nanogram level.

Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan.

* To whom correspondence should be addressed. E-mail: ojika{at}agr.nagoya-u.ac.jp

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Biologically active Phytophthora mating hormone prepared by catalytic asymmetric total synthesis.
S. R. Harutyunyan, Z. Zhao, T. d. Hartog, K. Bouwmeester, A. J. Minnaard, B. L. Feringa, and F. Govers (2008)
PNAS 105, 8507-8512
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Science. ISSN 0036-8075 (print), 1095-9203 (online)