DPX 1840-induced Organogenesis in Xanthi-nc Tobacco Plants | Zendy

Werner J. Meudt | Zendy; Howard W. Bennett | Zendy

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DPX 1840-induced Organogenesis in Xanthi-nc Tobacco Plants

Author(s) -

Werner J. Meudt,

Howard W. Bennett

Publication year - 1975

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.56.4.474

Subject(s) - abscission , biology , organogenesis , pedicel , anthesis , nicotiana tabacum , callus , meristem , shoot , botany , solanaceae , biochemistry , cultivar , gene

The synthetic growth regulant DPX 1840 (3,3a-dihydro-2-(p-methoxyphenyl)-8H-pyrazolo[5, 1-a]isoindol-8-one) induced callus growth and subsequent tissue differentiation on cut surfaces of decapitated Xanthi-nc tobacco plants (Nicotiana tabacum). Callus formation and organogenesis induced by DPX 1840 depended on the presence of leaves. The adventitious meristems developed into either vegetative or flowering shoots. Pedicels that bore single flower buds developed two abscission zones that caused the buds to abscise before anthesis. The various morphological and physiological processes affected by DPX 1840 suggests that this growth regulator affects the endogenous hormonal distribution and/or activity.

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