Mechanical approach toward flagellar motility

1993 ◽  
pp. 103-121
Author(s):  
Masatoshi Murase
Keyword(s):  
Flagellar Motility ◽  
Mechanical Approach

Quantitative Prediction of Aggregation‐Induced Emission: A Full Quantum Mechanical Approach to the Optical Spectra

2020 ◽  
Vol 132 (28) ◽  
pp. 11647-11652
Author(s):  
Wei Zhang ◽  
Jinfeng Liu ◽  
Xinsheng Jin ◽  
Xinggui Gu ◽  
Xiao Cheng Zeng ◽  
...  
Keyword(s):  
Optical Spectra ◽  
Quantitative Prediction ◽  
Quantum Mechanical ◽  
Aggregation Induced Emission ◽  
Mechanical Approach ◽  
Quantum Mechanical Approach ◽  
Full Quantum

Autophagic elimination of ribosomes during spermiogenesis provides energy for flagellar motility

2021 ◽  
Vol 56 (16) ◽  
pp. 2313-2328.e7
Author(s):  
Yuqing Lei ◽  
Xueguang Zhang ◽  
Qingjia Xu ◽  
Shiyan Liu ◽  
Chunxia Li ◽  
...  
Keyword(s):  
Flagellar Motility

scholarly journals Flagellar Motility ofTrypanosoma cruziEpimastigotes

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
G. Ballesteros-Rodea ◽  
M. Santillán ◽  
S. Martínez-Calvillo ◽  
R. Manning-Cela
Keyword(s):  
Life Cycle ◽  
Trypanosoma Cruzi ◽  
Quantitative Description ◽  
Flagellar Motility ◽  
Parasite Life Cycle ◽  
Large Variability ◽  
Rotational Angle ◽  
Ciliary Beating ◽  
Parasite Motility ◽  
Parasite Behavior

The hemoflagellateTrypanosoma cruziis the causative agent of American trypanosomiasis. Despite the importance of motility in the parasite life cycle, little is known aboutT. cruzimotility, and there is no quantitative description of its flagellar beating. Using video microscopy and quantitative vectorial analysis of epimastigote trajectories, we find a forward parasite motility defined by tip-to-base symmetrical flagellar beats. This motion is occasionally interrupted by base-to-tip highly asymmetric beats, which represent the ciliary beat of trypanosomatid flagella. The switch between flagellar and ciliary beating facilitates the parasite's reorientation, which produces a large variability of movement and trajectories that results in different distance ranges traveled by the cells. An analysis of the distance, speed, and rotational angle indicates that epimastigote movement is not completely random, and the phenomenon is highly dependent on the parasite behavior and is characterized by directed and tumbling parasite motion as well as their combination, resulting in the alternation of rectilinear and intricate motility paths.

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