This Article Full Text Full Text (PDF) Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Ann, P.-J. Articles by Ko, W.-H. Search for Related Content PubMed Articles by Ann, P.-J. Articles by Ko, W.-H. Agricola Articles by Ann, P.-J. Articles by Ko, W.-H.

Pythiogeton zizaniae, a new species causing basal stalk rot of water bamboo in Taiwan

     Plant Pathology Division, Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan

Wen-Hsiung Ko

     Plant Pathology Division, Taiwan Agricultural Research Institute, Wufeng, Taichung, Taiwan, and Department of Plant Protection, National Pingtung University of Science and Technology, Pingtung, Taiwan

A new species, Pythiogeton zizaniae, was isolated from diseased water bamboo (Zizania latifolia) in central Taiwan. The organism formed a colony with scanty mycelia and mycelial aggregates on rye-water bamboo medium. Special treatments were required for production of sporangia which were terminal, noncaducous and mostly ovoid. Chlamydospores were absent. The fungus was homothallic. Oogonia produced on V-8 water bamboo medium in water were mostly globose to subglobose and each was attached with a club-shaped, monoclinous antheridium by the base of the oogonium stalk. Oospores were plerotic and globose to subglobose. Py. zizaniae caused death of water bamboo suckers but did not infect seedlings of corn, rice, wheat, sorghum, cucumber, tomato, soybean or water spinach. It also did not affect cucumber and tomato fruit, carrot roots or potato tubers.

Key words: Oomycetes, Pythiogeton, water mold, Zizania latifolia