Jackson Estuarine Laboratory


The marine slime mold Labyrinthula zosterae, the causative agent of wasting disease of eelgrass Zostera marina, has been isolated from both 2. marina and 2. caulescens on the south coast of Japan. In addition, wasting-disease symptoms were produced in disease tests on leaves of Z. japonica and 2. marina using axenic cultures of L. zosterae isolated from Z. caulescens and Z. marina. Thus, the known host species of L. zosterae are expanded to include 3 species of Zostera. Although symptomatic necrotic lesions were observed in field-collected seagrass leaves, widespread die-off from wasting disease was not evident on the south coast of Japan.

Publication Date


Journal Title

Diseases of Aquatic Organisms


Inter-Research Science Center

Document Type



This is an article published by Inter-Research Science Center in Diseases of Aquatic Organisms, in 1993, available online: https://www.int-res.com/articles/dao/16/d016p073.pdf