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- Title
REGENERATION ND SEXUAL DIFFERENTIATION OF <em>GRIFFITHSIA JAPONICA</em> (CERAMIACEAE, RHODOPHYTA) THROUGH SOMATIC CELL FUSION.
- Authors
Mi Sook Hwang; Hyung-Seop Kim; In Kyu Lee
- Abstract
Hybrid cells were obtained from somatic cell fusion among male, female, and tetrasporangial plants in Griffithsia japonica Okamura by a wound-healing process. Isolated fusion cells regenerated new mature plants with mixed reproductive structures. The plants regenerated from hybrid cells between male and female plants developed into 1) spermatangiate, 2) carpogonial, 3) bisexual with spermatangia and carpogonial branches, 4) mixed-phase with spermatangia and tetrasporangia, or 5) bisexual/mixed phase plants with spermatangia, carpogonial branches, and tetrasporangia. About 70% of the plants regenerated from hybrid cells between male and female plants produced tetrasporangia that were always formed with spermatangia on a single cell. Some of those tetrasporangia released tetraspores, six of which gave rise to mature plants. The plants regenerated from hybrid cells between male and tetrasporangial plants developed into spermatangiate, tetrasporangiate, or mixed-phase plants with spermatangia and tetrasporangia. The plants regenerated from hybrid cells between female and tetrasporangial plants developed into carpogonial, tetrasporangiate, or mixed-phase plants with carpogonial branches and tetrasporangia. All types of reproductive structures were functional.
- Subjects
CELLS; SEX differentiation (Embryology); CERAMIACEAE; RED algae
- Publication
Journal of Phycology, 1991, Vol 27, Issue 3, p441
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.0022-3646.1991.00441.x