The Site of Indole-3-acetic Acid Synthesis in Mesophyll Cells of Spinacia oleracea
نویسندگان
چکیده
Chloroplasts, Compartmental Analysis, Indole-3-acetic Acid (LAA), Spinach Mesophyll Cells, Tryptophan Uptake Using [14C]tryptophan as a precursor, the intracellular localization o f indole-3-acetic acid biosynthesis in spinach mesophyll cells was investigated. Chloroplasts as well as extraplastidic compartments were able to transform tryptophan into indole-3-acetic acid. The cofactor requirement of plastidic and extraplastidic indole-3-acetic acid synthesis is shown. Light and abscisic acid treatment inhibited preparations.
منابع مشابه
Subcellular Compartmentation of Indole-3-acetic Acid in Mesophyll Cells of Spinacia oleracea
Chloroplasts, Compartmental Analysis, Indole-3-acetic Acid (LAA), IAA Conjugation, Permeability A compartmental analysis of the distribution of the plant hormone indole-3-acetic acid (IAA) was performed with mesophyll cells of spinach leaves. The results indicated that up to about 45% of the total amount of free IAA in the laminae of spinach is localized within the chloroplasts, although these ...
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