Department of Biological Sciences, Wright State University, Dayton, Ohio 45435.
Appl Environ Microbiol. 1987 Aug;53(8):1819-21. doi: 10.1128/aem.53.8.1819-1821.1987.
Phototaxis appears to be a factor that influences the dispersal of zoospores of the marine fungus Rhizophydium littoreum. By using a quantitative method to study phototaxis, zoospores were found to be positively phototactic toward blue wavelengths of light. White light in the range of 20 to 6,000 microeinsteins m s and blue light in the range of 1 to 300 microeinsteins m s gave positive responses in the laboratory. Results of field studies confirmed the ability of zoospores to respond to light under natural conditions. Phototaxis may be an important adaptive mechanism which influences vertical migration of zoospores in the photic zone where plant products are available as nutrients.
趋光性似乎是影响海洋真菌 Rhizophydium littoreum 游动孢子扩散的一个因素。通过使用定量方法研究趋光性，发现游动孢子对蓝光具有正趋光性。在实验室中，范围在 20 到 6000 微爱因斯坦·米·秒之间的白光和范围在 1 到 300 微爱因斯坦·米·秒之间的蓝光都给出了正响应。野外研究的结果证实了游动孢子在自然条件下对光作出反应的能力。趋光性可能是一种重要的适应机制，影响着游动孢子在有植物产物作为营养物质的光区中的垂直迁移。
