Nitrogenase

01/01/2023 - "loti did not affect the early stages of symbiosis, i.e., infection and nodulation, with Lotus japonicus, it reduced the nitrogenase activity of nodules and induced their early senescence. "
01/01/2023 - "It is well known that salt stress inhibits root nodule symbiosis by decreasing rhizobial growth, rhizobial infection, nodule number, and nitrogenase activity in diverse legumes. "
05/01/2021 - "Here, we demonstrate that NopP is secreted through T3SS-I of GS0123 during the early stages of infection, and its deficiency decreases nodule nitrogenase activity of R. "
01/01/2021 - "The transconjugant showed delayed infection and higher nitrogenase activity in mature nodules than the wild type, whereas nodule senescence was normal. "
06/01/2019 - "OE-LjTHIC plants exhibited an increase in the number of infection threads and also developed more nodules, which were of smaller size but unchanged nitrogenase activity compared to the wildtype. "

01/01/2021 - "Pi starvation and NO3 - application both reduce symbiotic N fixation via similar changes in the nodule gene expression and invoke local and long-distance, systemic responses, of which N-compound feedback regulation of rhizobial nitrogenase activity appears to operate under both conditions. "
01/01/2022 - "The study of the influence of various concentrations of Mo and Fe on photosynthetic and nitrogenase activities under conditions of nitrogen starvation revealed the optimal concentrations of metals that have a stimulating effect on the studied parameters."
01/01/2022 - "This study sought, isolated, and investigated nitrogen-fixing cyanobacterial strains in rice fields, and evaluated the effect of Mo and Fe on photosynthetic and nitrogenase activities under nitrogen starvation. "
01/01/2022 - "This in turn induces an iron-starvation response in rhizobia that results in iron import, which itself is required for nitrogenase activity. "
01/01/2022 - "Influence of Mo and Fe on Photosynthetic and Nitrogenase Activities of Nitrogen-Fixing Cyanobacteria under Nitrogen Starvation."

04/01/1996 - "Antibody response to nitrogenase-positive and -negative Klebsiella pneumoniae strains in juvenile-onset ankylosing spondylitis patients and their first degree relatives: lack of differential recognition of the bacterial nitrogenase."
06/01/1989 - "Studies of humoral and cell-mediated immunity to peptides shared by HLA-27.1 and Klebsiella pneumoniae nitrogenase in ankylosing spondylitis."
04/01/1989 - "Cross-reactive epitope with Klebsiella pneumoniae nitrogenase in articular tissue of HLA-B27+ patients with ankylosing spondylitis."
01/01/1990 - "Failure to detect cross-reacting antibodies to HLA-B27.5 and Klebsiella pneumoniae nitrogenase in sera from patients with ankylosing spondylitis and Reiter's syndrome."
04/01/1996 - "In the search for the pathogenic consequences of the molecular mimicry between the Klebsiella pneumoniae nitrogenase and the HLA-B27 antigen, sera from individuals belonging to 16 kindreds with juvenile-onset ankylosing spondylitis cases, were analyzed for antibodies against nitrogenase-positive and -negative K. "

01/01/2017 - "Salinity shock also did not affect nitrogenase activity. "
09/01/1981 - "If nitrogenase was inactivated by O(2) shock, filaments catalyzed H(2) uptake to an unidentified endogenous acceptor in the light. "
08/24/1976 - "Nitrogenase activity of a continuous culture was repressed by NH+4; the apparent half-life was about 90 min. Cells of 32H1 from a continuous culture growing at between 30 and 100 muM dissolved O2 possessed a protective mechanism which permitted respiration to increase following exposure to a rapid increase in O2 concentration from low levels (O2 shock). "
08/01/2007 - "Both Rhodobacter capsulatus PII homologs GlnB and GlnK were found to be necessary for the proper regulation of nitrogenase activity and modification in response to an ammonium shock. "
12/01/2005 - "In cells over-expressing the PZ protein the nitrogenase reactivation after an ammonium shock was delayed indicating that the PZ protein is involved in regulation of DraG activity."

01/01/1990 - "Failure to detect cross-reacting antibodies to HLA-B27.5 and Klebsiella pneumoniae nitrogenase in sera from patients with ankylosing spondylitis and Reiter's syndrome."
04/01/1992 - "Similar results were obtained regarding antibody response to Klebsiella nitrogenase derived synthetic peptide included in the panel of controls; the response was not restricted to patients with reactive arthritis nor was it specifically directed against the sequence shared by HLA-B27 and Klebsiella pneumoniae nitrogenase. "
01/01/1987 - "Autoimmune pathogenesis for ankylosing spondylitis (AS) and Reiter's syndrome (RS): autoantibodies against an epitope shared by HLA B27 and Klebsiella pneumoniae nitrogenase in sera of HLA B27 patients with AS and RS."
07/01/1992 - "An octadecapeptide encompassing the shared hexamer between HLA-B 27 and KP nitrogenase residue was synthesized and autoantibodies against this short peptide were detected in sera of patients with AS and Reiter's syndrome (RS) and other related disease and normal controls. "
06/01/1992 - "Absence of autoantibodies to peptides shared by HLA-B27.5 and Klebsiella pneumoniae nitrogenase in serum samples from HLA-B27 positive patients with ankylosing spondylitis and Reiter's syndrome."