Structure-Activity Relationship in the Auxin Activity of Mono-Substituted Phenylacetic Acids | Zendy

Robert Muir | Zendy; Toshio Fujita | Zendy; Corwin Hansch | Zendy

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Structure-Activity Relationship in the Auxin Activity of Mono-Substituted Phenylacetic Acids

Author(s) -

Robert Muir,

Toshio Fujita,

Corwin Hansch

Publication year - 1967

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.42.11.1519

Subject(s) - phenylacetic acid , coleoptile , auxin , elongation , chemistry , substituent , reactivity (psychology) , stereochemistry , biochemistry , gene , medicine , materials science , alternative medicine , pathology , ultimate tensile strength , metallurgy

The analysis of substituent constants for the lipophilic and electronic factors in the auxin activity of substituted phenylacetic acids in elongation of coleoptile segments shows that these factors parallel those for the phenoxyacetic acids but assign reactivity in growth promotion to the meta position of phenylacetic acid. The inhibitory effects with supra-optimal concentrations are highly dependent on the lipophilic character of the molecules.

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