ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    World journal of microbiology and biotechnology 12 (1996), S. 639-641 
    ISSN: 1573-0972
    Keywords: Bradyrhizobium japonicum ; Nitrogen fixation ; rhizobia ; soybeans
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Four local rhizobia isolates selected after two screening experiments and five USDA Bradyrhizobium japonicum strains were estimated for N2 fixation in soybean using the 15N isotope dilution technique. Strain USDA 110 was superior to the local isolates in nodulation and N2 fixation when inoculated onto soybean cv TGX 1497-ID in a Nigerian soil and could therefore be used as an inoculant for enhanced N2 fixation in soybean in Nigeria.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    World journal of microbiology and biotechnology 3 (1987), S. 201-210 
    ISSN: 1573-0972
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Description / Table of Contents: Résumé Dans le Sud du Nigéria, le maïs, le manioc et la patate douce sont les récoltes alimentaires majeures, et celles-ci constituent une source importante d'hydrates de carbone dans l'alimentation des habitants locaux. Il y a plusieurs méthodes traditionnelles pour le stockage de ces récoltes et toutes ont révélé conduire à des pertes tant quantitatives que qualitatives par stockage. Les microorganismes, particulièrement les moisissures, sont d'importants agents de détérioration et d'avarie de ces récoltes pendant le stockage. De nombreux facteurs influencent l'infection par et la croissance des microorganismes dans ces récoltes durant le stockage, particulièrement l'humidité. Pour améliorer leur conservation, le manioc et la patate douce sont en général transformées en produits stables à conserver en rayonnage comme le ‘garri’ et le ‘fufu’ de manioc ou encore les chips et la farine de patate douce. Tous ces produits transformés, malgré leur aptitude à la conservation en rayannage, sont néanmoins sujets à l'infection microbienne lorsqu'ils sont manipulés et conservés de manière impropre. Il faut en conclure que beaucoup de travail reste à faire au Nigéria pour améliorer les conditions de stockage. El maíz, la mandioca y el ñame son los cultivos, destinados a la alimentación, más importantes del sur de Nigeria, constituyendo la principal fuente de carbohidratos para los habitantes del area. Todos los métodos de almacenamiento tradicionales de estos cultivos producen perdidas tanto cuantitativas como cualitativas. Los microorganismos, especialmente los hongos, son agentes importantes de este deterioro. Son muchos los factores que influyen en la infestación y crecimiento de los microorganismos durante el almacenamiento de dichas cosechas, siendo la húmedad especialmente importante. Para mejorar su conservación la mandioca y el ñame se transforman en productos más estables tales como fufu y garri en el caso de la mandioca, y harina y rodajas cocinadas (‘chips’) en del ñame. Todos estos productos transformados, a pesar de su naturaleza relativamente estable, están todavía sujetos a infección microbiana si se manipulan o almacenan de forma inadecuada. Se concluye que restan por hacer muchos trabajos para poder mejorar las condiciones de almacenamiento en Nigeria.
    Notes: Summary In the southern part of Nigeria, maize, cassava, and yam are the major food crops grown, and they constitute an important source of carbohydrate in the diet of the inhabitants of the area. There are various traditional methods for storage of these crops and all have been shown to lead to storage losses both quantitatively and qualitatively. Micro-organism, especially the fungi, are important as agents of deterioration and spoilage of these crops during storage. Factors that influence the infestation and growth of micro-organisms in these crops during storage are many with moisture being especially significant. To aid in their preservation, cassava and yams are usually processed into more shelf-stable products such as garri and fufu from cassava as well as yam chips and fluor from yam. All these processed products, in spite of their relatively shelf-stable nature, are still subject to microbial infection if improperly handled and stored. It is concluded that much work needs to be done in Nigeria to improve storage conditions.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    World journal of microbiology and biotechnology 8 (1992), S. 171-174 
    ISSN: 1573-0972
    Keywords: Nitrogen fixation ; nodulation ; rhizobia ; soybean
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract Eighty soybean cultivars were assessed for their potential for nodulation and nitrogen fixation with indigenous rhizobia in a Nigerian soil. Seventy-six days after planting (DAP) 87%, 3% and 10% of the soybean cultivars had from 0 to 30, 31 to 60 and over 61 nodules/plant, respectively. Only 8% had a nodule dry weight of 600 to 1100 mg/plant. At 84 DAP the proportion of nitrogen derived from the atmosphere (Ndfa) ranged from 0 to 65% 16% of the cultivars derived 51 to 65% of their N2 from the atmosphere. The diversity of soybean germplasm and the variation in nodulation and N2 fixation permitted the selection of the five best cultivars in terms of their compatibility with indigenous rhizobia, % Ndfa and the amount of N2 which they fixed.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 81 (1984), S. 421-428 
    ISSN: 1573-5036
    Keywords: Acetylene inhibition ; Denitrifiers ; Electron acceptor ; Incubation ; Nitrate ; Nitrous oxide ; Nitrogen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A total of 81 strains isolated by T. N. Gamble from soils from eight countries, fresh water lake sediments and nitrified poultry manure were examined for their ability to grow on N2O as their electron acceptor, as well as for their tendency to produce N2O from NO 3 − in the absence and presence of acetylene. Seventy-seven of the 81 strains were confirmed as denitrifiers. Fifty-nine of the 77 strains grew on N2O, while 12 strains produced N2O but could not utilize it. Six strains reduced NO 3 − to N2 but could not grow on N2O, suggesting that even if N2O is always an intermediate product of denitrification, it is not always a freely diffusible intermediate. The organisms, however, would consume N2O that accumulated early in growth and accumulated N2O in the presence of acetylene. Thus the total number of N2O users was 65 strains or 83% of the total tested. This implies that the N2O reducing capacity of denitrifiers occur widely in nature. A high proportion ofPseudomonas fluorescens biotype II reduced N2O. The accumulation of N2O from NO 3 − in the presence of acetylene provides strong evidence that N2O is generally an intermediate in denitrification as well as provides additional support for the usefulness of this chemical as a general inhibitor of N2O reduction.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Plant and soil 80 (1984), S. 295-296 
    ISSN: 1573-5036
    Keywords: Denitrifier ; Most probable number
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract N2O when used in most probable number tubes as the only electron acceptor was not consumed at dilutions, down to 10−3 per gram. Additions of fresh carbon source and NO3 after growth did not stimulate N2O reduction. Since pure cultures of denitrifiers grew well under the same conditions this result was unexpected, the explanation has not been found. This approach, if successful, has the advantage that only denitrifiers can reduce N2O to N2. Further work in designing a method to use N2O as an electron acceptor in MPN tubes is suggested.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    Springer
    World journal of microbiology and biotechnology 9 (1993), S. 59-62 
    ISSN: 1573-0972
    Keywords: Alcaligenes ; denitrification ; electron acceptors ; nitrous oxide ; Paracoccus ; Pseudomonas
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Abstract The molar yields (g cell/mol) forAlcaligenes faecalis, Pseudomonas stutzeri, Paracoccus denitrificans andPseudomonas perfectomarinus batch cultures, under nitrous oxide (N2O) as the electron acceptor, were 11.2, 8.2, 6.1 and 4.4, respectively.Paracoccus denitrificans andPseudomonas perfectomarinus, which had the slowest growth rates, gave the lowest yields. Large maintenance energy costs may be partially responsible for this. The growth efficiencies ofA. faecalis andPs. perfectomarinus on N2O indicate that the numbers of sites for oxidative phosphorylation in the electron transport system associated with N2O reduction are about 49% and 39% of those in the electron transport system associated with O2 respiration, respectively.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 7
    Publication Date: 2001-01-17
    Print ISSN: 0178-2762
    Electronic ISSN: 1432-0789
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 8
    Publication Date: 1984-10-01
    Print ISSN: 0032-079X
    Electronic ISSN: 1573-5036
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 9
    Publication Date: 1984-06-01
    Print ISSN: 0032-079X
    Electronic ISSN: 1573-5036
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 10
    Publication Date: 1985-08-01
    Print ISSN: 0038-075X
    Electronic ISSN: 1538-9243
    Topics: Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Published by Ovid Technologies
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...