کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5504771 | 1400253 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Implications of coordinated cell-body rotations for Leptospira motility
ترجمه فارسی عنوان
اثرات چرخش بدن هماهنگ شده برای حرکت لپتوسپیا
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
چکیده انگلیسی
The spirochete Leptospira has a coiled cell body and two periplasmic flagella (PFs) that reside beneath the outer sheath. PFs extend from each end of the cell body and are attached to the right-handed spiral protoplasmic cylinder (PC) via a connection with the flagellar motor embedded in the inner membrane. PFs bend each end of the cell body into left-handed spiral (S) or planar hook (H) shapes, allowing leptospiral cells to swim using combined anterior S-end and posterior H-end gyrations with PC rotations. As a plausible mechanism for motility, S- and H-end gyrations by PFs and PC rotations by PF countertorque imply mutual influences among the three parts. Here we show a correlation between H-end gyration and PC rotation from the time records of rotation rates and rotational directions of individual swimming cells. We then qualitatively explain the observed correlation using a simple rotation model based on the measurements of motility and intracellular arrangements of PFs revealed by cryo-electron microscopy and electron cryotomography.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 491, Issue 4, 30 September 2017, Pages 1040-1046
Journal: Biochemical and Biophysical Research Communications - Volume 491, Issue 4, 30 September 2017, Pages 1040-1046
نویسندگان
Kyosuke Takabe, Akihiro Kawamoto, Hajime Tahara, Seishi Kudo, Shuichi Nakamura,