Presence and Possible Mode of Action of a Proteinaceous Gonadotropin-like Growth Regulating Factor in Plant Systems | Zendy

Amir Leshem | Zendy; R. R. Avtalion | Zendy; Mónica Schwarz | Zendy; Sarit Kahana | Zendy

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Presence and Possible Mode of Action of a Proteinaceous Gonadotropin-like Growth Regulating Factor in Plant Systems

Author(s) -

Amir Leshem,

R. R. Avtalion,

Mónica Schwarz,

Sarit Kahana

Publication year - 1969

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.44.1.75

Subject(s) - antiserum , biology , mode of action , auxin , human chorionic gonadotropin , peroxidase , gonadotropin , chrysanthemum morifolium , endogeny , cutting , botany , enzyme , antibody , biochemistry , microbiology and biotechnology , hormone , immunology , gene

Antiserum to human chorionic gonadotropin (HCG) caused marked inhibition of adventitious rooting of Begonia semperflorens and Chrysanthemum morifolium stem cuttings. Immuno-absorption of crude protein extract from chrysanthemum foliage through a column of polymerized and unsolubilized HCG antibodies resulted in a significant reduction in adventitious root promoting activity of the extract. These results are discussed in the light of a hypothesis that an endogenous protein growth regulating substance which immunologically resembles HCG exists in plant systems. Further experimentation with HCG suggests that its mode of action is possibly via the regulation of peroxidase enzymatic control of auxin levels.

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