flagellum


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flagellum

1. Biology a long whiplike outgrowth from a cell that acts as an organ of locomotion: occurs in some protozoans, gametes, spores, etc.
2. Botany a long thin supple shoot or runner
3. Zoology the terminal whiplike part of an arthropod's appendage, esp of the antenna of many insects
References in periodicals archive ?
Because the flagellum is tied to a bacteria's ability to move, an understanding of the controls on the flagellar system could help researchers learn how to immobilize harmful bacteria, and to hamper the flagellum-like systems that some bacteria use to infect host cells.
It consists of rapid, alternating downward and upward movements of the aesthetasc-bearing flagellum, resetting the sensitivity of the fast-adapting chemore-ceptors by continuously exposing them to novel aliquots of the odor-containing fluid.
Due to the results obtained in growth curves, a second hypothesis was tested based on the fact that epinephrine and self'inducers could interfere with the expression of genes related to the flagellum assembly.
27-30) The synchronous sliding is associated with the bend growth at the base of the flagellum while the metachronal sliding is associated with the propagation of bends of constant angle.
Plumose setae and aesthetascs are present on the peduncle, and simple setae on the antennular flagellum were noted, from stage I larvae to adults.
When the robot is subjected to an oscillating field of less than five millitesla - about the strength of a decorative refrigerator magnet - it experiences a magnetic torque on its head, which causes its flagellum to oscillate and propel it forward.
9-10) slightly bulbous at base, elongate, apical process of median lobe short and not bifid, flagellum well sclerotized and developed, moderate in length and curved subapically; paramere (Fig.
The second part discusses the relationship with the host in detail, including such topics as mucosal influence, siderophores, biofilms, oxidative stress, the role of the flagellum, and the difference between infection in humans and colonization in other host species.
The data in Table 3 indicate that the most encountered morphological violations of boars sperm cells when growing them in the southern subzone of the Chuvash Republic are the loop form of the flagellum end, an uneven contour of the middle part, and a cytoplasmic droplet on the flagellum.
Masticophis flagellum Often six feet or longer and very fast.
The initial infection-spreading cells of the fungus, called zoospores, swim by lashing a hair-like flagellum and don't have a cell wall.
They were long, slender and constantly rotating by flickering their anterior flagellum.