Lin L P, Teng Y P
Zhonghua Min Guo Wei Sheng Wu Xue Za Zhi. 1975 Jun;8(2):146-51.
Aspects of the external morphology of Azotobacter vinelandii cells during encystment and germination processes were observed with scanning electron microscopy. Most of the vegetative cells have a smooth surface but some have warty surfaces. The intact cysts have wrinkled surfaces and occasional small heaves. Mucoid materials are present on the surface of the cysts. During the encystment process, an extensive peeling-off of coat materials was noted, then the excretion and aggregation of new capsular materials was immediately followed. The germination process was initiated by an expansion of the central body (the cell), then the emerging of this cell from the cyst coats was observed.
利用扫描电子显微镜观察了棕色固氮菌细胞在包囊化和萌发过程中的外部形态特征。大多数营养细胞表面光滑，但有些细胞表面有疣状突起。完整的包囊表面有皱纹，偶尔还有小凸起。包囊表面存在黏液物质。在包囊化过程中，观察到包膜物质大量脱落，随后新的荚膜物质立即排出并聚集。萌发过程由中央体（细胞）的膨胀引发，随后观察到该细胞从包囊包膜中出现。
