Induction of δ-Aminolevulinic Acid Formation in Etiolated Maize Leaves Controlled by Two Light Systems | Zendy

Shimon Klein | Zendy; Esther Katz | Zendy; E. Ne’eman | Zendy

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Induction of δ-Aminolevulinic Acid Formation in Etiolated Maize Leaves Controlled by Two Light Systems

Author(s) -

Shimon Klein,

Esther Katz,

E. Ne’eman

Publication year - 1977

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.60.3.335

Subject(s) - etiolation , botany , chemistry , biology , biochemistry , biophysics , enzyme

A short illumination of etiolated maize (Zea mays) leaves with red light causes a protochlorophyll(ide)-chlorophyll(ide) conversion and induces the synthesis of delta-aminolevulinic acid (ALA) during a subsequent dark period. In leaves treated with levulinic acid, more ALA is formed in the dark than in control leaves. Far red light does not cause a conversion of protochlorophyll(ide) into chlorophyll(ide) and does not induce accumulation of ALA in the dark. Both red and far red preilluminations cause a significant potentiation of ALA synthesis during a period of white light subsequent to the dark period. The results indicate a dual light control of ALA formation. The possible role of phytochrome and protochlorophyllide as photoreceptors in this control system is discussed.

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