Temperature-dependent augmentation of ciliary motility by the TRP2 channel in Chlamydomonas reinhardtii.
Cytoskeleton (Hoboken)
; 2024 Mar 01.
Article
in En
| MEDLINE
| ID: mdl-38426808
ABSTRACT
Temperature is a critical factor for living organisms. Many microorganisms migrate toward preferable temperatures, and this behavior is called thermotaxis. In this study, the molecular and physiological bases for thermotaxis are examined in Chlamydomonas reinhardtii. A mutant with knockout of a transient receptor potential (TRP) channel, trp2-3, showed defective thermotaxis. The swimming velocity and ciliary beat frequency of wild-type Chlamydomonas increase with temperature; however, this temperature-dependent enhancement of motility was almost absent in the trp2-3 mutant. Wild-type Chlamydomonas showed negative thermotaxis, but mutants deficient in the outer or inner dynein arm showed positive thermotaxis and a defect in temperature-dependent increase in swimming velocity, suggesting involvement of both dynein arms in thermotaxis.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Cytoskeleton (Hoboken)
Year:
2024
Document type:
Article
Affiliation country:
Japón
Country of publication:
Estados Unidos