Abnormal basal-body number, location, and orientation in a striated fiber-defective mutant of Chlamydomonas reinhardtii.
نویسندگان
چکیده
منابع مشابه
Abnormal basal-body number, location, and orientation in a striated fiber-defective mutant of Chlamydomonas reinhardtii
We describe a mutant of Chlamydomonas reinhardtii in which basal body associated striated fibers are absent or incomplete. Basal body spacing, angle, and relative rotational orientation are abnormal and extremely variable. Abnormal partitioning of cellular contents at cytokinesis is also evident. Mating, maintenance of flagellar length equality, and backward swimming response are normal. Geneti...
متن کاملMolecular studies of linkage group XIX of Chlamydomonas reinhardtii: evidence against a basal body location
Linkage group XIX (also known as the UNI linkage group) in the green alga, Chlamydomonas reinhardtii, exhibits a number of unusual properties that have lead to the suggestion that it represents a basal body-associated chromosome. To begin a molecular analysis of this linkage group, we have identified DNA sequences from it and used them to determine the copy number of linkage group XIX within th...
متن کاملDefective temporal and spatial control of flagellar assembly in a mutant of Chlamydomonas reinhardtii with variable flagellar number
Wild-type Chlamydomonas reinhardtii carry two flagella per cell that are used for both motility and mating. We describe a mutant, vfl-1, in which the biflagellate state is disrupted such that the number of flagella per cell ranges from 0 to as many as 10. vfl-1 cells possess the novel ability to assemble new flagella throughout the G1 portion of the cell cycle, resulting in an average increase ...
متن کاملIdentification and molecular characterization of a novel Chlamydomonas reinhardtii mutant defective in chlorophyll biosynthesis
The green micro-alga Chlamydomonas reinhardtii is an elegant model organism to study all aspects of oxygenic photosynthesis. Chlorophyll (Chl) and heme are major tetrapyrroles that play an essential role in energy metabolism in photosynthetic organisms and are synthesized via a common branched tetrapyrrole biosynthetic pathway. One of the enzymes in the pathway is Mg chelatase (MgChel) which in...
متن کاملA Photorespiratory Mutant of Chlamydomonas reinhardtii.
A mutant strain of Chlamydomonas reinhardtii, designated 18-7F, has been isolated and characterized. 18-7F requires a high CO(2) concentration for photoautrophic growth in spite of the apparent induction of a functional CO(2) concentrating mechanism in air-adapted cells. In 2% O(2) the photosynthetic characteristics of 18-7F and wild type are similar. In 21% O(2), photosynthetic O(2) evolution ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1983
ISSN: 0021-9525,1540-8140
DOI: 10.1083/jcb.96.6.1697