Reference

Studies on abscisic acid

Studies on abscisic acid. Part XI. Synthesis and physiological activity of monodemethyl abscisic acids and methyl 5-(1',6'-epoxy-2',2'-dimethylcyclohexyl)-3-methyl-(2Z,4E)-2,4-pentadien oate. Nanzyo, Masami; Oritani, Takayuki; Yamashita, Kyohei (Fac. Agric., Tohoku Univ.Several substances like 21293-29-8 may be metioned in this study., Sendai, Japan). Agric. Biol. 21293-29-8 which is the cas registry number is also used here. Chem., 41(9), 1711-20 (English) 1977. CODEN: ABCHA6. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) Section cross-reference(s): 24 For the elucidation of the role of Me substituents on the cyclohexene ring of abscisic acid (I) [21293-29-8], on the physiol. activity, 2'-demethyl-I [65133-92-8], the 2 stereoisomers (cis [65167-19-3] and trans [65167-20-6]) of 6'-demethyl-I and Me 5-(1',6'-epoxy-2',2'-dimethylcyclohexyl)-3-methyl-(2Z,4E)-2,4-pentadien oate (II) [65133-75-7] were synthesized. Rice seedling assay showed that 2'-Me group of I was indispensable for strong growth inhibitory activities and that at least one of the 6'-gem-di-Me groups was unnecessary for growth inhibition. ..

The effect of kinetin on stomata of the grass Anthephora pubescens Nees

The effect of kinetin on stomata of the grass Anthephora pubescens Nees. Incoll, L. D.; Whitelam, G. C. (Dep. Plant Sci., Univ. Leeds, Leeds, Engl.). Planta, 137(3), 243-5 (English) 1977. CODEN: PLANAB. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemicals) One and 10 mmol kinetin (I) [525-79-1]/m3 stimulated transpiration of excised leaves of the title grass by 23-33 and 69-79%, resp., whereas 100 mmol abscisic acid (II) [21293-29-8]/m3 decreased the transpiration by 52-3%. Stomatol opening in isolated epidermal strips of A. pubescens in CO2-fra atm. and in the absence of K+ was enhanced by 10 mmol/m3 I.