✦ LIBER ✦
Relative levels of guanosine 5′-diphosphate 3′-diphosphate (ppGpp) in some N2fixing bacteria during derepression and repression of nitrogenase
✍ Scribed by D. Kleiner; S. Phillips
- Book ID
- 104769118
- Publisher
- Springer
- Year
- 1981
- Tongue
- English
- Weight
- 413 KB
- Volume
- 128
- Category
- Article
- ISSN
- 0302-8933
No coin nor oath required. For personal study only.
✦ Synopsis
Addition of ammonium to N 2 fixing cultures of Azotobacter vinelandii, Klebsiella pneumoniae and Clostridium pasteurianum rapidly reduced the intracellular levels of guanosine 5'-diphospbate 3'-diphosphate (ppGpp) by 70-90 ~. This change might reflect a regulatory role of ppGpp in nitrogen metabolism.