Structure of Some Cyclohexyl Compounds as Related to Their Ability to Stimulate Plant Growth

D. J. Wort, K. M. Patel
1974 Plant Physiology  
Aqueous solution, 10 mM, of cyclohexanecarboxylic, cyclohexylacetic, cyclohexylpropionic, cyclohexylbutyric acids (all components of naphthenic acid); cis-1,2-, and trans-1,4-cyclohexyldicarboxylic acids; 3-cyclohexene-1-carboxylic and cyclohexylsulfamic acids; and cyclohexyl mercaptan were applied to 14-day-old bush bean plants, Phaseolus vulgaris L. cv. Top Crop. Only cyclohexanecarboxylic and cyclohexylacetic acid resulted in a statistically significant (P = 0.05) increase in pod production
more » ... er plant in all experiments. The stimulation by the first four monocarboxylic acids decreased as the number of methylene groups in the side chain increased from 0 to 3. The effective compounds possessed an H-saturated 6-carbon ring with a single carboxyl group attached directly to the ring or separated from it by no more than one methylene group. 2Abbreviations: CHC: cyclohexanecarboxylic acid, Cdi1ICOOH; CHAc: cyclohexylacetic acid, CJIauCH2COOH; CHP: cyclohexylpropionic acid, CRH1,(CH2)2COOH; CHB: cyclohexylbutyric acid, C6Hll(CH2)3COOH; cis-CHDC: cis-1,2-cyclohexyldicarboxylic acid, C6H,o(COOH)2; trans-CHDC: trans-1,4-cyclohexyldicarboxylic acid, C6Hio(COOH)2; CHM: cyclohexyl mercaptan (cyclohexanethiol), CaH11SH; CHS: cyclohexylsulfamic acid, CGHnNHSO3H; CHeC: 3cyclohexene-1-carboxylic acid, C6H9COOH. 656 on July 22, 2018 -Published by Downloaded from
doi:10.1104/pp.54.4.656 pmid:16658947 fatcat:yicesmzajravpbajuhcshddaou