Raffaella Cerana , Piera Lado , Mario Anastasia , Pierangela Ciuffreda , Piero Allevi
{"title":"Regulating Effects of Brassino Steroids and of Sterols on Growth and H+ Secretion in Maize Roots","authors":"Raffaella Cerana , Piera Lado , Mario Anastasia , Pierangela Ciuffreda , Piero Allevi","doi":"10.1016/S0044-328X(84)80014-8","DOIUrl":null,"url":null,"abstract":"<div><p>The effects of brassinosteroid, of twelve related sterols and of three sterols on maize root growth and on H<sub>+</sub> secretion were investigated. A number of steroids stimulated root segment elongation and H<sub>+</sub> secretion as brassinosteroid does. Defined structural requirements were found for the effect on growth; on the contrary, all the steroids tested, among which stigmasterol, cholesterol and ergosterol, were active on H<sub>+</sub> secretion. Cholesterol stimulated K<sub>+</sub> uptake and dark CO<sub>2</sub> fixation, two processes generally associated with the activity of the H<sup>+</sup> pump.</p></div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 3","pages":"Pages 221-225"},"PeriodicalIF":0.0000,"publicationDate":"1984-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80014-8","citationCount":"23","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Zeitschrift für Pflanzenphysiologie","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0044328X84800148","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 23
Abstract
The effects of brassinosteroid, of twelve related sterols and of three sterols on maize root growth and on H+ secretion were investigated. A number of steroids stimulated root segment elongation and H+ secretion as brassinosteroid does. Defined structural requirements were found for the effect on growth; on the contrary, all the steroids tested, among which stigmasterol, cholesterol and ergosterol, were active on H+ secretion. Cholesterol stimulated K+ uptake and dark CO2 fixation, two processes generally associated with the activity of the H+ pump.
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