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Ethylene and light act through specific signal transduction mechanisms to coordinate the development of higher plants. Application of 1-aminocyclopropane-1-carboxylic acid (ACC, an ethylene precursor) suppresses the hypocotyl elongation of Arabidopsis seedlings in dark, but stimulates it in light. However, the mechanisms of opposite effects of ethylene on hypocotyl elongation in light and dark remain...
Silica-supported tungstophosphoric acid (SPW) with Keggin structure in liquid phase alkylation of benzene with ethylene and transalkylation of benzene with diethylbenzene was studied. The structures of SPW were characterized by nitrogen adsorption, FT-IR, and XRD; and the acidic properties characterized by pyridine adsorption FT-IR, NH 3 -TPD, and Hamett indicators. Tungstophosphoric acid...
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