Search Results - (Author, Cooperation:A. Kohen)

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  1. 1
    T. V. Mishanina ; L. Yu ; K. Karunaratne ; D. Mondal ; J. M. Corcoran ; M. A. Choi ; A. Kohen
    American Association for the Advancement of Science (AAAS)
    Published 2016
    Staff View
    Publication Date:
    2016-01-30
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Bacterial Proteins/*chemistry ; Catalysis ; Catalytic Domain ; *DNA Methylation ; Flavins/chemistry ; Folic Acid/chemistry ; Folic Acid Transporters/chemistry ; Humans ; Kinetics ; Thermotoga maritima/enzymology ; Thymidine Monophosphate/*biosynthesis/chemistry ; Thymidylate Synthase/*chemistry
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Kohen, A. ; Berkovich, R. ; Belakhov, V. ; Baasov, T.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0960-894X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/S0960-894X(00)80021-9

    Articles: DFG German National Licenses
  3. 3
    Kohen, A. ; Belakhov, V. ; Baasov, T.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0040-4039
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Chemistry and Pharmacology
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)76861-4

    Articles: DFG German National Licenses
  4. 4
    Rouhier, H. ; Billès, G. ; Kohen, A. ; Mousseau, M. ; Bottner, P.
    Springer
    Published 1994
    Staff View
    ISSN:
    1573-5036
    Keywords:
    Castanea sativa ; 14C-labelled ; carbon allocation ; CO2 enrichment ; nitrogen supply ; root derived material
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes:
    Abstract Two-year-old sweet chestnut trees were grown outside in normal or double CO2 atmospheric concentration. In spring and in autumn of two growing seasons, a six day labelling pulse of14C labelled CO2 was used to follow the carbon assimilation and distribution in the plant-soil system. Doubling atmospheric CO2 had a significant effect on the tree net carbon uptake. A large proportion of the additional C uptake was ‘lost’ through the root system. This suggests that increased C uptake under elevated CO2 conditions increases C cycling without necessarily increasing C storage in the plant. Total root derived material represented a significant amount of the ‘extra-assimilated’ carbon due to the CO2 treatment and was strongly correlated with the phenological stage of the tree. Increasing root rhizodeposition led to a stimulation of microbial activity, particularly near the end of the growing season. When plant rhizodeposition was expressed as a function of the root dry weight, the effect of increasing CO2 resulted in a higher root activity. The C to N ratios were significantly higher for trees grown under elevated CO2 except for the fine root compartment. An evaluation of the plant-soil system nitrogen dynamics showed, during the second season of CO2 treatment, a decrease of soil N mineralization rate and total N uptake for trees grown at elevated CO2 levels.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01347715

    Articles: DFG German National Licenses