煙草 crown gall tumor 및 teratoma의 出現樣相

Formation pattern of crown gall tumor and teratoma in nicotiana tabacum L.

These studies were carried out to clarify the formation pattern of crown gall tumor and teratoma in Nicotiana tabacum L. and the effect of arginine on the growth of tumor callus. Infection of N. tabacum var. NC 2326, NC 82, and BY 4 by A. tumefaciens C 58 led to the crown gall tumor, and teratoma and secondary tumor were also observed. The tobacco tumor callus was formed profusely on the phytohormone free medium. And shoots were, also, formed from tobacco tumor callus cultured on the phytohormone free medium. As for the effect of a arginine, it was found that arginine did not arfect the growth of tobacco tumor callus.