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Cytokinins in Xanthium strumarium: A Rapid Response to Short Day Treatment
Author(s) -
HENSON I. E.,
WAREING P. F.
Publication year - 1974
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.1399-3054.1974.tb03751.x
Subject(s) - exudate , petiole (insect anatomy) , xanthium , cytokinin , bioassay , biology , callus , botany , horticulture , auxin , biochemistry , ecology , hymenoptera , gene
Following a single inductive short day, cytokinin activity in extracts of leaf laminae, buds and root exudate of Xanthium strumarium L. (as measured by the soybean callus bioassay) declined to between 10 and 25% of the level detected under long‐day conditions. Additional inductive cycles, up to five, produced little further change. Cytokinin activity of petiole extracts fluctuated and did not decline to the same extent as that of leaf laminae, buds or exudate.