多头绒泡菌的生活史  

Life cycle of Physarum polycephlum

作　　者：史立平[1] 李玉[2] 

机构地区：[1]沈阳师范大学实验中心,辽宁沈阳110034 [2]吉林农业大学菌物研究所,吉林长春130118

出　　处：《东北师大学报（自然科学版）》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)

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.

关 键 词：黏菌 燕麦琼脂培养 原质团 孢子形成 

分 类 号：Q949.32[生物学—植物学]