”GERMINATION TUBE” GROWTH IN ESCHERICHIA COLI MICROCULTURES

AUTOR(ES)

Hoffman, Heiner

RESUMO

Hoffman, Heiner (New York University, New York, N.Y.), and Michael E. Frank. ”Germination tube” growth in Escherichia coli microcultures. J. Bacteriol. 88:1151–1154. 1964.—Analysis of extensive time-lapse photomicrographic records of Escherichia coli microcultures uncovered two cases in which there occurred aberrant cell growth resembling a germination tube. Although previously observed by a number of investigators in gram-positive bacteria, the present observations appear to constitute the first time-lapse photomicrographic record concerning a gram-negative form. In the first case, with photographs taken at 15-sec intervals, the cell initially exhibited a clublike deformation, and the “germ tube” then issued from the club head. The “tube” had developed into a separate cell by the time the photographic record was concluded. In the second case, with the photographs taken at 1-min intervals over a longer period of time, the “germ tube” cell assumed a plastic dumbbell-like form after separation from its sister. It is suggested that the phenomenon results from a disturbance in cell-wall synthesis, while cytoplasmic growth continues unabated.

Documentos Relacionados

• PATTERNS OF FILAMENT FRAGMENTATION IN ESCHERICHIA COLI MICROCULTURES
• POLLEN GERMINATION AND POLLEN TUBE GROWTH, AS INFLUENCED BY PURE GROWTH SUBSTANCES1
• Steroid Hormones Stimulate Germination and Tube Growth of in Vitro Matured Tobacco Pollen.
• Latrunculin B has different effects on pollen germination and tube growth.
• Time-Lapse Photomicrography of Lashing, Flexing, and Snapping Movements in Escherichia coli and Corynebacterium Microcultures