Effect of Light of Several Spectral Bands on the Metabolism of Radioactive IAA in Bean Seedlings | Zendy

R. A. Fletcher | Zendy; Saul Zalik | Zendy

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Effect of Light of Several Spectral Bands on the Metabolism of Radioactive IAA in Bean Seedlings

Author(s) -

R. A. Fletcher,

Saul Zalik

Publication year - 1965

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.40.3.549

Subject(s) - red light , metabolism , elongation , blue light , botany , plant metabolism , horticulture , chemistry , biology , biochemistry , physics , optics , materials science , rna , gene , metallurgy , ultimate tensile strength

In a study on the effect of light quality on plant growth we found a direct relationship between IAA content and plant height (1). Of the several spectral regions used the red produced plants which were the shortest and had the least IAA. Using low intensity radiation Meijer (3) also obtained inhibition of elongation in red light but was able to obtain some reversal by the addition of IAA and related compounds. Although we did not obtain reversal, a marked difference in the metabolism of exogenously applied IAA in plants exposed to blue and red light was observed. Therefore, this study to compare the metabolism of labeled IAA by plants grown in different regions of the spectrum was undertaken.

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