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多头绒泡菌的生活史 被引量:6

Life cycle of Physarum polycephlum
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摘要 利用燕麦-琼脂培养、基物培养及扫描电镜技术研究了多头绒泡菌的个体发育过程,在燕麦琼脂培养基上完成了从孢子到孢子的生活史.结果表明,多头绒泡菌生活史包括单核的黏变形体或游动胞、多核的营养体原质团以及孢子的形成等阶段.孢子球形,表面具细小疣点;孢子萌发为裂式,释放黏变形体.原质团类型为显型;成熟原质团亮黄色,可形成多个孢囊.琼脂培养基上获得的多头绒泡菌孢子与野生型相似,并具有可育性. The life history of myxomycetes is of importance to study diversity of nutritive modes and phylogenesis of these organisms.Until now the reports concered were few.Oat-agar culture method,moist chamber culture method and scanning electron microscopy were used to study the process of the ontogeny of Physarum polycephlum.The life cycle of spore-to-spore were completed in agar culture in Petri dish.The result shows that the life cycle of Physarum polycephlum comprises a unicellular amoeboid or swarm cell stage,a multinucleate plasmodium stage and a sporulation stage.The spore is globose and the spore surface is minutely spiny.The spore germinates by means of a cracked open and releases a single myxamoeba.The plasmodial type is of phaneroplasmodium.The mature plasmodium is bright yellow,which can form many sprangia.Spores developed on agar are fertile and resemble those on natural substrate.
作者 史立平 李玉
出处 《东北师大学报(自然科学版)》 CAS CSCD 北大核心 2010年第4期106-110,共5页 Journal of Northeast Normal University(Natural Science Edition)
基金 国家自然科学基金资助项目(30770005)
关键词 黏菌 燕麦琼脂培养 原质团 孢子形成 myxomycetes oat-agar culture plasmodium sporulation
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