Reversal of flagellar rotation in monotrichous and peritrichous bacteria: generation of changes in direction.
نویسندگان
چکیده
Reversal of flagellar rotation can explain both the "backing up" of monoflagellated Pseudomonas citronellolis and the tumbling of multiflagellated Salmonella typhimurium. Reversals occur spontaneously and can be induced by negative gradients of attractant and by high-intensity light.
منابع مشابه
The flagellar motor of Caulobacter crescentus generates more torque when a cell swims backward
Caulobacter crescentus, a monotrichous bacterium, swims by rotating a single right-handed helical filament. CW motor rotation thrusts the cell forward 1, a mode of motility known as the pusher mode; CCW motor rotation pulls the cell backward, a mode of motility referred to as the puller mode 2. The situation is opposite in E. coli, a peritrichous bacterium, where CCW rotation of multiple left-h...
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UNLABELLED Current knowledge regarding the mechanism that governs flagellar motor rotation in response to environmental stimuli stems mainly from the study of monotrichous and peritrichous bacteria. Little is known about how two polar flagella, one at each cell pole of the so-called amphitrichous bacterium, are coordinated to steer the swimming. Here we fluorescently labeled the flagella of Mag...
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Roberts, F. F., Jr. (University of Maryland, College Park), and R. N. Doetsch. Some singular properties of bacterial flagella, with special reference to monotrichous forms. J. Bacteriol. 91:414-421. 1966.-Heat (60 C for 30 min), 10 m acetamide, and 8 m urea all brought about rapid and complete dissolution of flagella from monotrichous bacteria; hence, these flagella respond similarly to those o...
متن کاملAntigenic Difference Between Polar Monotrichous and Peritrichous Flagella of Vibrio parahaemolyticus
Vibrio parahaemolyticus has peritrichous flagella in addition to polar monotrichous flagella (1, 3, 4, 16, 17; E. Yabuuchi, M. Arita, Y. Takeda, and T. Miwatani, Jap. J. Microbiol., in press), and some differences in the characteristics of these two types of flagella have been reported. Polar monotrichous flagella are a normal type, whereas peritrichous flagella are an atypical, curly type (16;...
متن کاملAntigenic difference between polar montrichous and peritrichous flagella of Vibrio parahaemolyticus.
Polar monotrichous and peritrichous flagella of Vibrio parahaemolyticus were isolated and purified separately. On hydroxylapatite column chromatography, the flagellins of polar monotrichous flagella were eluted with a higher concentration of phosphate than those of peritrichous flagella. Gel diffusion tests showed an antigenic difference between the flagellins of polar monotrichous and peritric...
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 119 2 شماره
صفحات -
تاریخ انتشار 1974