PHYSIOLOGY AND DINITROGEN FIXATION OF ACETOBACTER-DIAZOTROPHICUS
Stephan, SYMP; Oliveira, M; Teixeira, KRS; Martinezdrets, G; Dobereiner, J
| HERO ID | 4942247 |
|---|---|
| In Press | No |
| Year | 1991 |
| Title | PHYSIOLOGY AND DINITROGEN FIXATION OF ACETOBACTER-DIAZOTROPHICUS |
| Authors | Stephan, SYMP; Oliveira, M; Teixeira, KRS; Martinezdrets, G; Dobereiner, J |
| Journal | FEMS Microbiology Letters |
| Volume | 77 |
| Issue | 1 |
| Page Numbers | 67-72 |
| Abstract | The recently described species Acetobacter diazotrophicus isolated from sugar cane roots and stems was found capable of growth at pH 3.0 and showed high nitrogenase activity even at pH 2.5. No growth occurred at pH 7.5. Extracellular oxidation of glucose followed by gluconic acid formation was necessary for initiation of logarithmic growth, which proceeded with N2 as the sole nitrogen source. N2-dependent growth did not occur in N-free liquid medium under air, but starter doses of 0.6 to 1 mM (NH4)2SO4 led to active N2-fixing cultures after 34 h. Nitrogenase activity was only partially inhibited by 20 mM (NH4+)2SO4 and several amino acids showed similar effects. However, NO3- did not inhibit or repress nitrogenase activity. |
| Wosid | WOS:A1991EQ13100013 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Keyword | N2-DEPENDENT GROWTH; N2-FIXATION, IN SUGAR CANE; ACETOBACTER-DIAZOTROPHICUS |