Zeitschrift für Pflanzenphysiologie最新文献_第5页

Effects of Metal Ions on Growth of and on Ion Absorption by Spirodela polyrhiza (L.) Schleiden Effects of Iron, Magnesium and Zinc 金属离子对多根螺旋藻生长及离子吸收的影响铁、镁、锌的施莱登效应

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80025-2

W.A.C. Schreinemakers

{"title":"Effects of Metal Ions on Growth of and on Ion Absorption by Spirodela polyrhiza (L.) Schleiden Effects of Iron, Magnesium and Zinc","authors":"W.A.C. Schreinemakers","doi":"10.1016/S0044-328X(84)80025-2","DOIUrl":"10.1016/S0044-328X(84)80025-2","url":null,"abstract":"<div>Fronds of Spirodela polyrhiza (L.) Schleiden (duckweed) were grown under axenic conditions. Three series of two-week experiments were performed. In each series the concentration of iron, magnesium or zinc was varied, but all other elements remained in a constant concentration. Thirty-five different concentrations of iron were used, the iron content varying from 0 to 0.72 mol·m-3. In the case of magnesium and zinc fifty concentrations of each metal were used, the metal content varying from 0 to 4.12 mol·m-3 for Mg and from 0 to 1.53 mol·m-3 for Zn. For each culture the frond multiplication rate and the rate of increase in biomass were measured. After two weeks the fronds were analysed for their Fe, Cu, Ca, Zn, Mn and Mg content. Whereas high concentrations of Fe and Zn resulted in decreased frond multiplication rates, high Mg concentrations did not affect this rate. Although the increase in biomass per unit time showed an optimum curve for each of the varied elements, the weight per frond remained quite constant with varying Fe, showed an optimum value for Mg and increased with increased Zn concentration.The data obtained point to the possible existence of coupled uptake mechanisms for Fe and Cu, Mg and Mn and for Zn and Ca.</div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 2","pages":"Pages 123-129"},"PeriodicalIF":0.0,"publicationDate":"1984-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80025-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83971099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 10

The Effect of Na2SO4 on the Lipid Composition of Sugar Beet Plants Na2SO4对甜菜植株脂质组成的影响

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80031-8

C.E.E. Stuiver, L.J. de Kok, J.M.O. Santens, P.J.C. Kuiper

引用次数: 9

Local Ionic Environment of Plant Membranes: Effects on Membrane Functions 植物膜局部离子环境对膜功能的影响

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80012-4

Jean-Baptiste Thibaud , Charles Romieu , Remy Gibrat , Jean-Pierre Grouzis , Claude Grignon

引用次数: 21

Plasmalemma Structure and Function in Endomycorrhizal Symbioses 菌根内共生的质膜结构与功能

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80011-2

V. Gianinazzi-Pearson , J. Dexheimer , S. Gianinazzi , C. Jeanmaire

引用次数: 17

H+-ATPase and Auxin-stimulated ATPase in Membrane Fractions from Zucchini (Cucurbita pepo L.) and Pumpkin (Cucurbita maxima L.) hypocotyls 西葫芦(Cucurbita pepo L.)和南瓜(Cucurbita maxima L.)下胚轴膜组分中H+- atp酶和生长素刺激的atp酶

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80016-1

G.F.E. Scherer

引用次数: 14

Evidence for the Contribution of Surface Potential to the Transtonoplast Potential Difference Measured on Isolated Vacuoles with Microelectrodes 用微电极在孤立液泡上测量表面电位对移植物体电位差贡献的证据

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80013-6

H. Barbier-Brygoo , C. Romieu , J.P. Grouzis , R. Gibrat , C. Grignon , J. Guern

引用次数: 9

Change in Fatty Acids Composition During Water stress in Cotton Plants. Relation With Drought Resistance Induced by Far Red Light 水分胁迫下棉花脂肪酸组成的变化远红光与抗旱性的关系

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80017-3

M. Ouedraogo, A. Tremolieres, C. Hubac

引用次数: 14

Isolation and Biochemical Characterization of a «Cytosolic Fraction» from Sweet Clover Protoplasts 甜三叶草原生质体“细胞质组分”的分离及生化特性研究

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80018-5

H. Canut, G. Alibert, A.M. Boudet

引用次数: 4

Pinitol and Other Solutes in Salt-stressed Sesbania aculeata 盐胁迫下野田葵中的碧尼醇和其他溶质

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80029-X

J. Gorham, E. McDonnell, R.G. Wyn Jones

引用次数: 50

Role of the Lutoidic Tonoplast in the Control of the Cytosolic Homeostasis within the Laticiferous Cells of Hevea 乳质体在橡胶树乳汁细胞胞浆内稳态控制中的作用

Zeitschrift für Pflanzenphysiologie Pub Date : 1984-04-01 DOI: 10.1016/S0044-328X(84)80021-5

H. Chrestin , X. Gidrol , B. Marin , J.L. Jacob , J. d'Auzac

{"title":"Role of the Lutoidic Tonoplast in the Control of the Cytosolic Homeostasis within the Laticiferous Cells of Hevea","authors":"H. Chrestin , X. Gidrol , B. Marin , J.L. Jacob , J. d'Auzac","doi":"10.1016/S0044-328X(84)80021-5","DOIUrl":"10.1016/S0044-328X(84)80021-5","url":null,"abstract":"<div>Lutoids, the vacuo-lysosomes of the Hevea latex cells, compartmentalize, in vivo, numerous ions such as H+, Mg++, Ca++, Pi, citrate, some of them strongly toxic for the cytosolic metabolism. Evidence is given for the correlation of the in vivo compartimentation of some of these ions inside the lutoids with the latex production by Hevea.Two opposing H+ pumps were localized on the lutoidic tonoplast; the one is a Mg++-dependent ATPase, the other a NADH-consuming redox system (cytochrome c: artificial acceptor). The functioning of these H+ pumps may account for a major part of the transtonoplastic ΔpH variations, and therefore the cytosolic pH control, which probably regulates the highly pH-dependent latex metabolism.The resulting proton-motive force energizes the accumulation and compartmentation of the inhibiting ions inside the lutoïds, and ensures the control of the «detoxification» and ionic equilibrium of the cytoplasm of the laticiferous cells.Treatment of Hevea bark with ethrel, an ethylene generator which «stimulates» latex production, induces an increase in the H+-pumping ATPase activity, resulting in the activation of the metabolism in the latex cells.All the results reviewed lead us to propose that the lutoids play a double role as a «biophysical pH-STAT and a «detoxicating trap», thus controlling the cytosolic homeostasis.</div>","PeriodicalId":23797,"journal":{"name":"Zeitschrift für Pflanzenphysiologie","volume":"114 3","pages":"Pages 269-277"},"PeriodicalIF":0.0,"publicationDate":"1984-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0044-328X(84)80021-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90699247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19