Ultraviolet Induced Mutations in Chlamydomonas moewusii Gerloff

Abstract

Mutants (194) were isolated from among survivors of cells irradiated with u-v on the surface of agar plates. Slow-growing (65) and palmelloid (67) forms were not characterized further. Mutant strains also included 3 with recognized biochemical deficiencies (impaired photosynthesis and requirements for thiamine and p-amino-benzole acid,respec-tively). In several the cells were unable to swim, owing to paralysis (7) or absence of flagella (3). Others were distinguished by frequent misdivislon of cells (10) or the accumulation of large globules of volutin (5).