Orpin C G
J Gen Microbiol. 1977 Mar;99(1):107-17. doi: 10.1099/00221287-99-1-107.
The rumen flagellat Piromonas communis is the zoospore of a phycomycete fungus inhabiting the rumen. Zoosporogenesis was stimulated by a dietary component (the inducer), and inhibited by compounds affecting membrane structure and function, but not by inhibitors of protein synthesis. The zoospores showed taxis towards the tissues surrounding the inflorescence of Lolium perenne L. in the rumen, invading principally the stomata and damaged tissues. The zoospores germinated on this substratum and the rhizoids of the developing vegetative stage penetrated the tissue, taking up C14 from labelled plant material, which was incorporated into the fungal cells. The conditions for maximum flagellate production (39 degrees C, pH 6-0 to 7-0, high concentration of CO2, absence of O2) resembled those found in the rumen. The organism was cultured in an undefined medium in vitro in the absence of other flagellates.
瘤胃鞭毛虫普通梨形鞭毛虫是一种栖居于瘤胃的藻状菌纲真菌的游动孢子。游动孢子的形成受一种饮食成分（诱导物）刺激，受影响膜结构和功能的化合物抑制，但不受蛋白质合成抑制剂抑制。游动孢子对瘤胃中黑麦草花序周围的组织表现出趋化性，主要侵入气孔和受损组织。游动孢子在该基质上萌发，发育中的营养阶段的假根穿透组织，从标记的植物材料中摄取C14，并将其整合到真菌细胞中。产生最大量鞭毛虫的条件（39摄氏度、pH值6.0至7.0、高浓度二氧化碳、无氧）与瘤胃中的条件相似。该生物体在无其他鞭毛虫的情况下于体外在一种成分不明确的培养基中培养。
