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Transport of Kinetin‐8 14 C in Petioles
Author(s) -
Lagerstedt H. B.,
Langston R. G.
Publication year - 1966
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1966.tb07058.x
Subject(s) - petiole (insect anatomy) , kinetin , botany , chromosomal translocation , biology , leaflet (botany) , agar , horticulture , tissue culture , hymenoptera , biochemistry , genetics , gene , bacteria , in vitro
Several differences in the translocation pattern of radioactive kinetin in plant petioles were determined. Radioactivity from kinetin‐8‐ 14 C (Kn*) moved from donor agar blocks through petioles of bean and cocklebur but not of cotton. There was no difference in basipetal or acropetal movement of radioactivity from Kn* in cocklebnr petioles, but there was in bean petioles. In bean petioles this movement was preferentially basipetal, but it was influenced by the age of the petiole and by the presence of added indoleactic acid. The combination treatment accelerated the basipetal movement of radioactivity from Kn* in young bean petioles and not in old ones. All data is based on radioactivity translocated into receiver agar blocks which were assayed individually in a liquid scintillation spectrometer. The results show that plant species, direction of transport, age of tissue, and presence of IAA can all influence the translocation of Kn* in petioles.