Main Content

The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 4167

Suhama Mikio; Reproducing Singlets with an Inverted Oral Apparatus in Glaucoma scintillans (Ciliophora, Hymenostomatida). J.Protozool. 32(3):454-459, 1985

Reprint

In File

Notes

A fragment with only an abnormal oral apparatus (OA) was obtained by operation from a doublet of Glaucoma scintillans possessing one normal and one abnormal OA. This singlet could reproduce and produced a cell line. Singlets frequently possessed an inverted OA, whose antero-posterior axis was rotated 180 degrees. This inversion of the OA has been perpetuated through a considerable number of generations. Oral replacement commonly occurred in singlets with an abnormal OA regardless of growth phases of a culture. The position of the contractile vacuole pore, the direction of curvature of ciliary rows surrounding the OA, and the organization of postoral ciliary rows were mirror-images of those of a normal singlet.