Biochemie und Physiologie der Pflanzen最新文献_第3页

Biochemie und Physiologie der Pflanzen Pub Date : 1993-04-01 DOI: 10.1016/S0015-3796(11)80147-2

K. Pistrick

引用次数: 0

The Chemical Interaction between Precarthamin and Cellular Components Precarthamin与细胞组分的化学相互作用

Biochemie und Physiologie der Pflanzen Pub Date : 1993-04-01 DOI: 10.1016/S0015-3796(11)80143-5

Koshi Saito , Masatoshi Katsukuka

引用次数: 4

Inhibition of Photosystem II in the Green Alga Scenedesmus obliquus by Nickel 镍对绿藻光系统II的抑制作用

Biochemie und Physiologie der Pflanzen Pub Date : 1993-04-01 DOI: 10.1016/S0015-3796(11)80139-3

Mostafa M. El-Sheekh

{"title":"Inhibition of Photosystem II in the Green Alga Scenedesmus obliquus by Nickel","authors":"Mostafa M. El-Sheekh","doi":"10.1016/S0015-3796(11)80139-3","DOIUrl":"10.1016/S0015-3796(11)80139-3","url":null,"abstract":"<div>The toxic effect of Ni2+ ions on photosynthetic electron transport was investigated by monitoring Hill activity, fluorescence, oxygen evolution and thermoluminescence properties in the green algae Scenedesmus obliquus 276-1. Nickel strongly inhibited 2,6-dichlorophenolindophenol (DCPIP) photoreduction in the broken cells of Scenedesmus, and the activity lost could not be restored by adding 1,5-diphenyl carbazide (DPC). Oxygen evolution both measured polarographically and under flash light conditions decreased by increasing the nickel concentration. Fluorescence intensity measured at room temperature decreased upon addition of nickel chloride, both in the presence and absence of DCMU. The maximum fluorescence could not be restored by addition of artificial electron donors. Thermoluminescence studies revealed that the S2QA- charge recombination, however, was inhibited with increasing concentrations of nickel chloride. The results suggest that Ni2+ does not block the electron flow between the primary and secondary quinone electron acceptor, but modify the QB site or interact with the non-heme iron between the QA and QB, leading to the impairment of photosystem II.</div>","PeriodicalId":8798,"journal":{"name":"Biochemie und Physiologie der Pflanzen","volume":"188 6","pages":"Pages 363-372"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0015-3796(11)80139-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85823849","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: 26

Biochemie und Physiologie der Pflanzen Pub Date : 1993-04-01 DOI: 10.1016/S0015-3796(11)80152-6

K. Müntz

引用次数: 0

Glucose Oxidase, a Potential Contributor towards Flower Colour Modification in the Capitula of Carthamus tinctorius L. 葡萄糖氧化酶在红花头状花序颜色修饰中的作用。

Biochemie und Physiologie der Pflanzen Pub Date : 1993-04-01 DOI: 10.1016/S0015-3796(11)80144-7

Koshi Saito

{"title":"Glucose Oxidase, a Potential Contributor towards Flower Colour Modification in the Capitula of Carthamus tinctorius L.","authors":"Koshi Saito","doi":"10.1016/S0015-3796(11)80144-7","DOIUrl":"10.1016/S0015-3796(11)80144-7","url":null,"abstract":"<div>Experiments were performed to demonstrate that glucose oxidase from Aspergillus niger conduces towards the flower colour modification in the capitula of Carthamus tinctorius L. For inducing the catalytic reaction, glucose oxidase displayed the absolute requirement for precarthamin, (β-D-glucose and atmospheric oxygen. The enzyme alone could also react with precarthamin to produce carthamin, however, the magnitude is very weak. No activity appeared in the reaction medium containing heat-inactivated enzyme sample even after the addition of glucose. The evidence was further corroborated in an incubation model, in which hydrogen peroxide and precarthamin is co-existent, instead of being added the enzyme and its substrate. The experimental model system showed a quite similar reaction pattern to that of the enzymatic process, indicating that a concomitant weight of red carthamin is accumulated as a major product of the hydrogen peroxide catalysis. On the basis of these assays, it was postulated that glucose oxidase may participate indirectly in the carthamin formation via the process of generating its by-product, hydrogen peroxide, which could react directly with precarthamin. The data are discussed in relation to flower colour modification induced characteristically in C. tinctorius capitula.</div>","PeriodicalId":8798,"journal":{"name":"Biochemie und Physiologie der Pflanzen","volume":"188 6","pages":"Pages 405-417"},"PeriodicalIF":0.0,"publicationDate":"1993-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0015-3796(11)80144-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73253817","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: 4

Comparisons of Photosynthetic Responses of Sunflower and Soybean to Mild Water Stress 向日葵和大豆对轻度水分胁迫的光合响应比较

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80127-7

Gian Franco Soldatini , Lucia Guidi

引用次数: 11

Phenolic Compounds in Needles of Norway Spruce Trees in Relation to Novel Forest Decline I. Studies on Trees from a Site in the Northern Black Forest 挪威云杉针叶中酚类物质与森林新衰退的关系[j] .北方黑森林样地树木的研究

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80126-5

Christine M. Richter , Aloysius Wild

引用次数: 25

On Heat-Shock Stimulation of Plant Cells Reparability 热休克刺激对植物细胞修复能力的影响

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80128-9

V.Ya. Alexandrov , I.S. Gorban', A.G. Lomagin

{"title":"On Heat-Shock Stimulation of Plant Cells Reparability","authors":"V.Ya. Alexandrov , I.S. Gorban', A.G. Lomagin","doi":"10.1016/S0015-3796(11)80128-9","DOIUrl":"10.1016/S0015-3796(11)80128-9","url":null,"abstract":"<div>The effect of heat shock (5 min at 45 °C) on the cytoplasmic streaming in the cells of Campanula persicifolia, Zebrina pendula and Tradescantia albiflora leaves and the chloroplast phototaxis in the cells of T. albiflora has been investigated. It has been shown that heat shock not only increases the thermostability of these functions but also stimulates the cell reparatory ability. Cells preliminarily subjected to heat shock after test heating more rapidly restore heat suppressed functions than control cells that underwent test heating only, provided the degree of initial inhibition of functions was equal both in hardened and in control cells. The reparation rate of hardened cells immediately after test heating exceeds many-fold that of control cells. Moreover, heat shock widens the reparatory zone, that is a region of temperatures under which heating of definite duration suppresses a given function fully but reversibly. Thus heat shock intensifies the activity of the cell reparatory apparatus, the structure and action mechanisms of which are still unknown.</div>","PeriodicalId":8798,"journal":{"name":"Biochemie und Physiologie der Pflanzen","volume":"188 5","pages":"Pages 333-342"},"PeriodicalIF":0.0,"publicationDate":"1992-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0015-3796(11)80128-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83097273","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: 1

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80135-6

R. Braun

引用次数: 0

Biochemical Components of Pearl Millet (Pennisetum glaucum L. R. Br.) Tissues in Healthy and Diseased State Induced by Sclerospora graminicola (Sacc.) Schroet. 珍珠粟(Pennisetum glaucum L. R. Br.)的生化成分graminicola (Sacc.)诱导的健康和病变组织Schroet。

Biochemie und Physiologie der Pflanzen Pub Date : 1992-12-01 DOI: 10.1016/S0015-3796(11)80130-7

J.N. Bhatia , D.P. Thakur

引用次数: 2