首页 | 本学科首页   官方微博 | 高级检索  
     


Induction of synchronous differentiation (encystment) in Physarum polycephalum myxamoebae
Authors:Annegret Haars  Kurt Zaar  Aloys Hüttermann
Affiliation:(1) Forstbotanisches Institut der Universität Göttingen, Büsgenweg 2, D-3400 Göttingen, Germany;(2) Institut für Biologie II der Universität Freiburg, Germany
Abstract:Encystment of Physarum polycephalum myxamoebae, grown under nearly identical physiological conditions as plasmodia is induced by transfer to a salts medium containing 0.5 M mannitol or mannose. After 24 h induction approximately 50% of amoebae had differentiated to cells which were identified to be young cysts by light and electron microscopy. Several other polyols, sugars, biogenic amines, and a starvation period from 24 h to one week caused no reproducible cyst formation. In contrast to the formation of dormant forms in the plasmodial stage of the life cycle, the induction of cysts and their germination to amoebae are not inhibited neither by actinomycin C nor by cycloheximide. In addition, the isoenzyme spectra of aminopeptidases and acid proteases remain nearly identical in growing and differentiating amoebae.Abbreviations SD semi-defined BSS basal salts solutionThe investigation is a part of the Ph. D. thesis of A. Haars, Göttingen, 1976
Keywords:Physarum polycephalum  Myxamoebae  Encystment  Differentiation  Induction  Mannose  Aminopeptidases  Acid proteases
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号