Premium
AUXIN, CYTOKININ AND GROWTH OF EXCISED ROOTS OF BRYOPHYLLUM CALYCINUM
Author(s) -
Robbins William J.,
Hervey Annette
Publication year - 1978
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1978.tb06180.x
Subject(s) - cytokinin , auxin , biology , botany , sucrose , 1 naphthaleneacetic acid , basal (medicine) , horticulture , biochemistry , gene , insulin , endocrinology
Excised roots 1 cm long of Bryophyllum calycinum required exogenous auxin (α‐naphthaleneacetic acid) for growth in still culture in a medium of sucrose, mineral salts and vitamins. Little or no growth occurred with the addition of cytokinin (6‐benzylaminopurine) alone to the basal medium. Best growth was obtained with combinations of 1 μg of auxin and 1 or 2 μg of cytokinin in 50 ml of medium. Larger amounts of the two phytohormones resulted in reduced growth.