THE VIRGINIA ACADEMY OF SCIENCE
Virginia Journal of Science


Virginia Journal of Science. 2001.  Vol 52 (1) :57-65
Isolation and Fusion of Cotton Protoplasts
Michael H. Renfroe1, Ronald C. Hartwig2, and Roberta H. Smith2, 1Department of Biology, James Madison University, Harrisonburg, VA  22807, 2Department of Soil and Crop Sciences, Texas A&M University, College Station, TX  77843
ABSTRACT
   Protoplasts were isolated from five species of Gossypium.  Protoplast yield and viability were affected by incubation conditions, osmolarity, purification procedures, and cell source.  Using an optimized procedure, highly viable protoplasts were isolated from cell suspensions, callus cultures, and leaf tissue of G. hirsutum, G. arboreum, G. klotzschianum, G. harknessii, and G. herbaceum.  Protoplasts of G. harknessii were enucleated and successfully fused with protoplasts of G. hirsutum.