目的考察槲寄生对光合细菌生长的促进作用。方法通过光合细菌培养液中不同槲寄生浓度及常规培养基浓度对光合细菌活菌数的影响、不同浓度槲寄生对光合细菌生长曲线的影响及槲寄生提取液对光合细菌脱氢酶活性的影响来考察槲寄生对光合细菌生长的促进作用。结果培养液中添加槲寄生最高可使光合细菌活菌数增加达8倍以上;而且可以使光合细菌不经过延迟期直接进入指数期,缩短光合细菌的生长周期;且使光合细菌脱氢酶活性提高8.4倍。结论培养液中添加槲寄生提取物可促进光合细菌生长,提高光合细菌的活力。

Objective To study the improvement effects of Viscum coloratum on growth of photosynthetic bacteria (PSB). Methods Improvement effect of V. coloratum on growth of PSB was researched by observing the effects of various V. coloratum concentrations and general culture medium concentration on the number of alive bacteria, observing the effects of V. coloratum on growth curve of PSB and dehydrogenase activity. Results Adding V. coloratum into culture medium was able to increase the number of alive PSB in 8 times to act PSB directly entering exponential period without delay period which shortened the growth period of PSB, and to improve dehydrogenase activation of PSB in 8.4 times. Conclusion Adding V. coloratum into culture medium is able to improve both the growth and the activity of PSB.

国家科技攻关项目(2001BA540C)