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Effect of Different Cytokinins on Ethylene Production by Mung Bean Hypocotyls in the Presence of Indole‐3‐Acetic Acid or Calcium Ion
Author(s) -
LAU OILIM,
JOHN WILLIAM W.,
YANG SHANG F.
Publication year - 1977
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.1399-3054.1977.tb09275.x
Subject(s) - kinetin , hypocotyl , xanthine , ethylene , cytokinin , calcium , chemistry , phaseolus , epicotyl , biochemistry , zeatin , auxin , botany , biology , explant culture , organic chemistry , in vitro , enzyme , gene , catalysis
Kinetin has been shown to act synergistically with indole‐3‐acetic acid (IAA) or calcium ion (Ca 2+ ) to stimulate ethylene production. Several commercially available cytokinins (kinetin, kinetin‐riboside, benzyladenine, benzyladenine‐riboside, isopentenyladenine, isopentenyladenine‐riboside, and zeatin) as well as noncytokinin bases (adenine and xanthine) were administered to mung bean ( Phaseolus aureus Roxb.) hypocotyls to study their effects, alone or in combination with IAA or Ca 2+ , on ethylene production. In the presence of IAA or Ca 2+ , all cytokinins tested synergistically stimulated ethylene production and were as effective or nearly as effective as kinetin. Noncytokinin bases (adenine and xanthine) were, however, inactive in this system.