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Cytokinins in germinating maize caryopses
Author(s) -
Staden J.
Publication year - 1981
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.1399-3054.1981.tb04499.x
Subject(s) - endosperm , zeatin , germination , radicle , embryo , caryopsis , zea mays , scutellum , biology , botany , biochemistry , microbiology and biotechnology , cytokinin , agronomy , auxin , gene
The transport and metabolism of 8[ 14 C]t‐zeatin applied to the embryonic axis and radicle tip of Zea mays L. caryopses was studied. As in the endosperm side‐chain oxidation rather than side‐chain modification (glucosylation) was the predominant way in which applied zeatin was metabolised in the metabolically more active embryonic axis. Within this tissue there was also evidence for a second form of metabolism which involved modifications to the adenine ring. No clear evidence for an embryo‐endosperm interactions of cytokinins during the course of germination process could be found.