title: Callus formation and differentiation in tissue cultures of normal and cytoplasmic male sterile sorghum, pepper, sunflower, and tobacco.
mesh_terms: D002454:Cell Differentiation; D046508:Culture Techniques; D006368:Helianthus / Q000166:cytology; D059828:Plant Cells; D010944:Plants; D010947:Plants, Toxic; D006109:Poaceae / Q000166:cytology; D014026:Nicotiana / Q000166:cytology; D003313:Zea mays / Q000166:cytology