Microbiologia (Madrid, Spain)最新文献_第5页

[Latin American science form the clinical perspective]. [从临床角度看拉丁美洲科学]。

Microbiologia (Madrid, Spain) Pub Date : 1997-06-01

J E Allende

引用次数: 0

Macrolife and beyond. 宏观生物及其他。

Microbiologia (Madrid, Spain) Pub Date : 1997-06-01

R D Richards

引用次数: 0

Extracellular bacterial mineralization within the context of geomicrobiology. 地球微生物学背景下的细胞外细菌矿化。

Microbiologia (Madrid, Spain) Pub Date : 1997-06-01

N Ben Omar, J M Arias, M T González-Muñoz

{"title":"Extracellular bacterial mineralization within the context of geomicrobiology.","authors":"N Ben Omar, J M Arias, M T González-Muñoz","doi":"","DOIUrl":"","url":null,"abstract":"In the biosphere, bacteria can function as geochemical agents, promoting the dispersion, fractionation and/or concentration of matter. These processes, which are being more and more valued from the point of view of various scientific disciplines, have given rise to the field of geomicrobiology. At the same time, microbial processes resulting in the concentration of matter and thus inducing the formation of minerals, constitute an area of research of growing interest known as biomineralization. In this review a succinct summary of various aspects of both disciplines has been offered together with a more detailed review of those aspects related to extracellular bacterial mineralization. The significance of the role played by the metabolism of bacteria is discussed along with the results of recent research on the role of dead bacteria and bacterial remains that act as heterogeneous nuclei of crystallization. The role played by the membranes of bacteria has also been considered to be highly relevant, and a discussion concerning their possible value as models for both the study of more complex biomineralization processes as well as application in the field of biomimetic materials is put forward.","PeriodicalId":77263,"journal":{"name":"Microbiologia (Madrid, Spain)","volume":"13 2","pages":"161-72"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20195964","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: 0

Use of Percoll gradient centrifugation for the isolation of diatoms from Wadden Sea sediments; diatom yields, species recoveries and population diversity. Percoll梯度离心法分离瓦登海沉积物中的硅藻硅藻产量、物种恢复和种群多样性。

Microbiologia (Madrid, Spain) Pub Date : 1997-06-01

S Sevecke, T Morawietz, W E Krumbein, E Rhiel

{"title":"Use of Percoll gradient centrifugation for the isolation of diatoms from Wadden Sea sediments; diatom yields, species recoveries and population diversity.","authors":"S Sevecke, T Morawietz, W E Krumbein, E Rhiel","doi":"","DOIUrl":"","url":null,"abstract":"The technique of Percoll gradient centrifugation was applied to samples from Wadden Sea sediments of the shoreside near Dangast (German Bight). Experiments were also performed with Wadden Sea sediment inoculated with diatoms and with axenic and mixed diatom cultures. For axenic and mixed cultures, total recoveries ranged from 6 to 70% of the diatoms loaded onto the gradients, whereas the yields were less than 5% in most of the experiments with Wadden Sea sediments. The extraction of diatoms from mixed cultures and from sediment samples was not quantitative, neither in terms of biodiversity nor of total individuals extracted, because the rates of recovery varied for the different species. Diatom cells extracted by Percoll gradient centrifugation were devoid of sand grains and debris. The obtained material was suitable to be used in biochemical experiments, in cultural studies and for electron microscopy. The overall cell morphology and subcellular organelle organization was excellent and appeared to be unaffected by the purification procedure. The results and advantages and disadvantages of the technique are discussed.","PeriodicalId":77263,"journal":{"name":"Microbiologia (Madrid, Spain)","volume":"13 2","pages":"173-84"},"PeriodicalIF":0.0,"publicationDate":"1997-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20195965","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: 0

Patarroyo and the strategies to develop a malaria vaccine. 巴达罗约和开发疟疾疫苗的战略。

Microbiologia (Madrid, Spain) Pub Date : 1997-03-01

G Caba

引用次数: 0

[The challenges to science in Latin America]. [拉丁美洲科学面临的挑战]。

Microbiologia (Madrid, Spain) Pub Date : 1997-03-01

A Lazcano

引用次数: 0

[Enrique Montoya (1928-1996), a life dedicated to teaching and research]. 恩里克·蒙托亚(1928-1996)，一生致力于教学和研究。

Microbiologia (Madrid, Spain) Pub Date : 1997-03-01

J M Arias