Skip to main content

3 Result(s)

within M. J. Sampaio Remove this filter

and

  1. No Access

    Article

    Identification of a potential transcriptional regulator of hydrogenase activity in free-living Bradyrhizobium japonicum strains

    In Bradyrhizobium japonicum, Tn5 insertions in a particular chromosomal DNA fragment result in a Hup− phenotype in free-living conditions without affecting hydrogenase (Hup) activity in the symbiotic state. By de...

    C. Van Soom, C. Verreth, M. J. Sampaio… in Molecular and General Genetics MGG (1993)

  2. No Access

    Chapter and Conference Paper

    Immunological Criteria in Kidney Allocation

    In Portugal, shortage of organs is the factor limiting the development of kidney transplantation. As the annual number of new hemodialysis patients acceptable to transplant largely exceeds the annual number of...

    A. Gomes da Costa, M. J. Sampaio, A. Sousa… in Organ Replacement Therapy: Ethics, Justice… (1991)

  3. No Access

    Chapter

    Nitrogen Fixation by Soil Algae of Temperate and Tropical Soils

    Blue-green algae are common components of the microbial flora of the soil in many parts of the world (7,8,18,30). In the tropics most attention has been paid to their role in rice paddy soils where, free-livin...

    W. D. P. Stewart, M. J. Sampaio… in Limitations and Potentials for Biological … (1978)