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ENDOGENOUS BETA IRRADIATION AND TUMOR PRODUCTION IN AN AMPHIPLOID NICOTIAN A HYBRID
Author(s) -
Conklin Marie E.,
Smith Harold H.
Publication year - 1968
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.1537-2197.1968.tb07401.x
Subject(s) - biology , endogeny , kinetin , meristem , seedling , growth regulator , botany , biochemistry , tissue culture , in vitro , shoot
The amphiploid Nicotiana suaveolens × N. langsdorffii , which is genetically constituted to produce tumors spontaneously late in development, can be induced to form them in the early seedling stage by treatment of the apical meristem with kinetin and indoleacetic acid. Application of H 3 ‐or C 14 ‐labeled plant‐growth regulators resulted in most plants and notably with C 14 ‐labeled indoleacetic acid in a significant increase in the rate of tumor production over growth‐regulator treatment alone. Endogenous radiation alone was shown to be tumefacient since radioactive nucleosides, tritiated water, and C 14 ‐sodium carbonate also enhance tumorization.