Role of Ethylene in Abscisic Acid-induced Callus Formation in Citrus Bud Cultures | Zendy

R. Gören | Zendy; Arie Altman | Zendy; Israel Giladi | Zendy

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Role of Ethylene in Abscisic Acid-induced Callus Formation in Citrus Bud Cultures

Author(s) -

R. Gören,

Arie Altman,

Israel Giladi

Publication year - 1979

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.63.2.280

Subject(s) - callus , abscisic acid , ethylene , explant culture , botany , orange (colour) , chemistry , tissue culture , biology , horticulture , biochemistry , in vitro , catalysis , gene

The induction of callus formation in cultured buds of Shamouti orange (Citrus sinensis [L.] Osbeck) by abscisic acid (ABA) is a multiphasic process. (Altman, and Goren 1974 Physiol Plant 32: 55.) A study of the mediation by ethylene on this effect of ABA was undertaken. It was found that: (a) ethylene and (2-chloroethyl) phosphonic acid, as well as ABA, induced callus formation; (b) callus induction is best attained when explants are exposed to ethylene during the 1st day after excision; and (c) ABA-induced callus formation is inhibited by rhizobitoxine analog, an inhibitor of ethylene biosynthesis. It is concluded that the effect of ABA on callus formation is mediated via ethylene.

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