Key points are not available for this paper at this time.
Gibberellins A(1), A(3), and iso-A(3) were identified from aseptic cultures of Azospirillum lipoferum strain op 33 by capillary gas chromatography-mass spectrometry (GC-MS) and GC-MS-selected ion monitoring. There were 20 to 40 picograms (in GA(3) equivalents, estimated from bioassay) of gibberellins A(1) and A(3) per milliliter of cell culture (containing 10(9) cells).
Bottini et al. (Mon,) studied this question.