PT  - JOURNAL ARTICLE
AU  - Klein, Shimon
AU  - Katz, Esther
AU  - Neeman, Emma
TI  - Induction of δ-Aminolevulinic Acid Formation in Etiolated Maize Leaves Controlled by Two Light Systems
AID  - 10.1104/pp.60.3.335
DP  - 1977 Sep 01
TA  - Plant Physiology
PG  - 335--338
VI  - 60
IP  - 3
4099  - http://www.plantphysiol.org/content/60/3/335.short
4100  - http://www.plantphysiol.org/content/60/3/335.full
SO  - Plant Physiol.1977 Sep 01; 60
AB  - A short illumination of etiolated maize (Zea mays) leaves with red light causes a protochlorophyll(ide)-chlorophyll(ide) conversion and induces the synthesis of δ-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.