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Pollen Growth Regulator, Fusanolide A, and a Related Metabolite from Fusarium sp.

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Pollen Growth Regulator, Fusanolide A, and a Related Metabolite from Fusarium sp.

A. Shimada

a

, M. Kusano

b

, K. Matsumoto

b

, M. Nishibe

b

, T. Kawano

b

, and Y. Kimura

b

a Department of Environmental Chemistry, Faculty of Engineering, Kyushu Kyoritsu University, 1Ð8 Jiyugaoka, Yahatanishi, Kitakyushu 807Ð8585, Japan

b Department of Agricultural Chemistry, Faculty of Agriculture, Tottori University, Koyama, Tottori 680Ð8553, Japan

Reprint requests to Dr. A. Shimada. Fax: (+81) 93-693-3201. E-mail: jun@kyukyo-u.ac.jp Z. Naturforsch.57 b,239Ð242 (2002); received September 19, 2001

Fusanolide, Pollen, Growth Regulator

Fusanolides A (1) and B (2) were isolated from cultures of the fungusFusarium sp. as pollen growth regulators and their structures were established by spectroscopic evidence.1 completely inhibited pine pollen germination and tea pollen tube growth at a concentration of 300 mg/l, but2showed no inhibitory effect on them at the same concentration.

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