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Ethylene production in habituated and auxin‐requiring tobacco callus cultures. Does ethylene play a role in the habituation?
Author(s) -
Köves Erzsébet,
Szabó Margit
Publication year - 1987
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.1399-3054.1987.tb04299.x
Subject(s) - callus , auxin , nicotiana tabacum , ethylene , habituation , botany , biology , chemistry , biochemistry , catalysis , neuroscience , gene
Ethylene production of habituated and auxin‐requiring tobacco ( Nicotiana tabacum L. cv. Xanthi) callus cultures were compared. More ethylene was produced by auxinrequiring i.e. auxin‐heterotrophic cultures than by habituated ones. Treatment with 2,4‐dichlorophenoxyacetic acid increased the ethylene evolution of habituated cultures over the range 10 −7 to 10 −4 M , which suggests that the higher ethylene production of auxin‐dependent callus is caused by the 2,4‐D in the medium. The IAA levels depended on the age of both types of callus cultures.