Comparison of IAA-Induced and Low Temperature-Induced GA3 Responsiveness and α-Amylase Production by GA3 Insensitive Dwarf Wheat Aleurone | Zendy

Surinder Singh | Zendy; Leslie G. Paleg | Zendy

Open Access

Comparison of IAA-Induced and Low Temperature-Induced GA₃ Responsiveness and α-Amylase Production by GA₃ Insensitive Dwarf Wheat Aleurone

Author(s) -

Surinder Singh,

Leslie G. Paleg

Publication year - 1986

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.82.3.685

Subject(s) - aleurone , amylase , production (economics) , biology , agronomy , botany , chemistry , endosperm , enzyme , biochemistry , macroeconomics , economics

Rht3-containing gibberellic acid (GA(3)) insensitive deembryonated wheat (Triticum aestivum L. var Cappelle Desprez x Minister Dwarf) aleurone, that can be made responsive to GA(3) by low temperature, can also be rendered GA(3) sensitive by preincubation with indoleacetic acid (IAA). The IAA-induced response of the dwarf selection is concentration-dependent, relatively sensitive, and similar in magnitude to that induced by low temperature. Other auxins also induce GA(3) responsiveness to a greater or lesser degree. IAA has no apparent effect on the wild type (rht, tall) selection.

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