Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie最新文献_第2页

[Analysis of soil respiration-curves (author's transl)]. 土壤呼吸曲线分析(作者译)。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

H E Freytag

引用次数: 0

[Effect of plant residues on the parasitic activity of soil-borne pathogens and the saprophytic microflora of the soil. II. Influence of a second crop cultivation one the incidence of Rhizoctonia solani (author's transl]. 植物残体对土壤病原菌寄生活性和腐生菌群的影响。2二次栽培对茄枯丝核菌发病率的影响[作者译]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

K Naumann, M Lange-de la Camp

{"title":"[Effect of plant residues on the parasitic activity of soil-borne pathogens and the saprophytic microflora of the soil. II. Influence of a second crop cultivation one the incidence of Rhizoctonia solani (author's transl].","authors":"K Naumann, M Lange-de la Camp","doi":"","DOIUrl":"","url":null,"abstract":"In a more years-lasting field trial the influence of a second crop cultivation of rye and rape in winter time on the incidence of Rhizoctonia solani Kühn on potato or mustard as indicator plants was studied. The second crops were ploughed in during spring time. On part of the trial was artificially infested by this causal agent. Three crop rotations with different proportions of host plants (potato) were compared. The results obtained demonstrate the following: 1. On the part of experimental area arficially infested the incidence rate was higher for 3 till 4 years than on the control plots, but later it became equally to the control one, which also was very high (approximately 50). 2. In the last very dry year (1969) the disease developed only a little. 3. The second crop cultivation decreased the incidence of R. solani in 7 (rye) or 8 (rape) of 10 cases, but mostly the rate of decreasing was low. 4. A high weed density induced by a diminished mechanical cultivation increased the incidence of R. solani at the end of the experiment (1969), specially in the rotation with 80% host plants. 5. The number of soil bacteria, the respiration rate, and partly also the activity of dehydrogenase and the soil acidity were increased by green manuring of the second crop, however, the number of the actinomycetes, and the cellulolytic activity didn't be influenced remarkably. 6. The second crop cultivation ist nounced as a measure stimulating the soil fertiligy and discussed in connection with the microbial processes taking place in soil.","PeriodicalId":23868,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie","volume":"132 5-6","pages":"573-92"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11805032","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

[Gluconic acid forming enzymes in Aspergillus niger (author's transl)]. [黑曲霉中葡萄糖酸形成酶(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

H M Müller

{"title":"[Gluconic acid forming enzymes in Aspergillus niger (author's transl)].","authors":"H M Müller","doi":"","DOIUrl":"","url":null,"abstract":"At least three gluconic acid forming enzymes were identified in cell-free extracts of Aspergillus niger: glucose oxidase (EC 1.1.3.4), a glucose dehydrogenase (EC 1.1.99.10), and an enzyme or a mixture of enzymes catalyzing the cleavage of 6-phosphogluconate into gluconate and inorganic phosphate. 2,6-dichlorphenolindophenol was one of the hydrogen acceptors in vitro of the glucose dehydrogenase. Some properties of this enzyme (Km values, pH-dependence, substrate and hydrogen acceptor specificity), as determined in cell-free extracts, were found to be in good agreement with properties described in literature for a glucose dehydrogenase which has been purified from Aspergillus oryzae. The formation of Pi from 6-phosphogluconate and other phosphate esters was found to have an optimum between pH 7 and 8 , and another below pH 4. This suggests that it is catalyzed by an alkaline and an acid phosphomonoesterase (EC 3.1.3.1, 3.1.3.2), both enzymes exhibiting only low substrate specificity. The influence of extraction and assay buffers on the activity of gluconate forming enzymes was investigated. Loss of activity during preparation of cell-free extracts, as calculated from loss of activity storage of cell-free extracts at 4 degrees C, was found to be lower than 4%. Purified glucose oxidase added before homogenization was found in the extract almost quantitatively.","PeriodicalId":23868,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie","volume":"132 1","pages":"14-24"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11239794","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

[The action of selected herbicides on bacteriophages and Escherichia coli (author's transl)]. [选定除草剂对噬菌体和大肠杆菌的作用(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

I M Touré, E Stenz

{"title":"[The action of selected herbicides on bacteriophages and Escherichia coli (author's transl)].","authors":"I M Touré, E Stenz","doi":"","DOIUrl":"","url":null,"abstract":"The effect of eight herbicides on the multiplication of bacteria and bacteriophages was tested with Escherichia coli, strains W1665F+ and C600, and with the RNA-phage M12 and the DNA-phage lambda in turbidimetric investigations and one-step growth experiments. E. coli is inhibited by seven of the herbicides investigated in concentrations of 10(-3)M, partly of 10(-4)M, too, and is promoted by some compounds in weaker concentrations. Naphthylacetic acid, (NES) largely independent of its concentration, causes increased density of bacteria in fluid culture. The multiplication of the M12 phage is inhibited in sometimes wide ranges of concentration by 2,4-D, MCPA, 2,4-DP, and CMPP but it is stimulated by NES and amitrole. The lambda-phage multiplication is inhibited only by CMPP, MCPA, MCPB, and phenylacetic acid interfere with the lysogenization of the bacteria and increase the lytic activity of the lambda-phages as 2,4-DP and NES do. 2,4-D strongly inhibits the plaque-forming ability of M12 phages already prior to their contact with the host cells, whereas MCPA and CMPP are inhibitory in the first phases and 2,4-DP in all phases of the phage replication. In the lambda-phage replication, too, CMPP is effective only in the first phases. Aspects of the mode of action of the herbicides in the procaryoute virus system are discussed.","PeriodicalId":23868,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie","volume":"132 2","pages":"163-77"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11540164","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

[The effect of biocides on the microflora of soils and their degradation. II. Correlations between a changed population of micro-organisms and the degradation of straw (author's transl)]. 杀菌剂对土壤微生物区系的影响及其降解。2微生物种群变化与秸秆降解之间的相关性[作者译]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

G Höflich

{"title":"[The effect of biocides on the microflora of soils and their degradation. II. Correlations between a changed population of micro-organisms and the degradation of straw (author's transl)].","authors":"G Höflich","doi":"","DOIUrl":"","url":null,"abstract":"Fungi are of precedent importance for the decomposition of straw in comparison with bacteria and actinomycetes. Several genera and species are able to replace one another. For the fungi, by biocides easier reduced than other kinds of organisms, an inhibition of the decomposition of straw by application of fungicides is possible. An unrestricted or promoted flora of bacteria is not able to replace a restricted flora of fungi. The decomposition of straw cannot be stopped completely. Certain types of fungi locate in higher quantities as a result of the elimination of the competition by bacteria and in dependence on the used antibiotic. Then the special intensity of the decomposition of straw depends on the cellulase-activity of the in each case located fungi. In order to stop the decomposition of straw completely it is necessary to inhibit both the physiologically active bacteria (pseudomonads and bacteria) and the fungi for a longer period of time. Combinations of bactericides and fungicides can bring about synergistic decomposition retarding effects. A persistent stimulation of the straw-decomposition by application of active substances was not successful.","PeriodicalId":23868,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie","volume":"132 1","pages":"67-74"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"12042951","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

[Moulds of bakery dusts (author's transl)]. [面包房粉尘的霉菌(作者译)]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

H Gemeinhardt, I Bergman

引用次数: 0

[A contribution to the study of respiration in soil and in the rhizosphere of winter wheat (author's transl)]. [对冬小麦土壤和根际呼吸作用研究的贡献[作者简介]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

D Marendiak

引用次数: 0

[Influence of N-serve on mineral nitrogen forms and microorganisms of the soil (author's transl)]. [N-serve对土壤矿质氮形态和微生物的影响[作者译]。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

B Hickisch, L Kopcanova

{"title":"[Influence of N-serve on mineral nitrogen forms and microorganisms of the soil (author's transl)].","authors":"B Hickisch, L Kopcanova","doi":"","DOIUrl":"","url":null,"abstract":"In a model experiment with soil, 2 stages of nitrogen (without additional N and with 200 kg N/ha in the form of ammonia) and 3 N-Serve stages (without inhibitor and with 0.25 per cent and 1 per cent of inhibitor, relative to 200 kg of N/ha) were followed up over a period of 3 and 6 weeks, respectively, with respect to the dynamics of the nitrification process, the saprophytic soil microorganisms, and the autotrophic nitrifiers. In a second experiment, the ammonia form of nitrogen was substituted by the nitrate and nitrite form, respectively. No serious influence on the heterotrophic soil micro-organisms could be detected in any experimental variant; N-Serve was slightly stimulating, the autotrophic nitrifiers were noticeably depressed by N-Serve. The nitrification process could clearly be proved after 3 weeks already; by N-Serve it was remarkably delayed. Nitrite that had been added to the soil was scarcely transformed into nitrate, whereas it was somewhat more ammonified. The high loss of nitrogen in the nitrite variant cannot be caused by denitrification alone. When nitrate was used, the nitrification was not delayed.","PeriodicalId":23868,"journal":{"name":"Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie","volume":"132 5-6","pages":"497-504"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11805026","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

The influence of fertilization on nitrogen transformations in a grassland soil. 施肥对草地土壤氮素转化的影响。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

B Ulehlová

引用次数: 0

[Spontaneous hosts of broad bean wilt virus. Communication]. 蚕豆枯萎病毒的自发寄主。沟通)。

Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite naturwissenschaftliche Abt.: Allgemeine, landwirtschaftliche und technische Mikrobiologie Pub Date : 1977-01-01

K Schmelzer, P Stahl

引用次数: 0