Table VI.

Absolute areas of peak abundance for the M+ of [17,172H2]GA20(m/z 420) and [17,17-2H2]GA1 (m/z 508) obtained by GC-MS for dx seedlings (equal sample aliquots were injected; see “Materials and Methods” for details)

  Treatment (10−1 μg plant−1)M+ 420 Area × 103([2H2]GA20)M+ 508 Area × 103([2H2]GA1)Total Peak Areas × 103 of ([2H2]GA20) +([2H2]GA1)
[2H2]GA20-G withoutAzospirillum spp.74552
[2H2]GA20-GE withoutAzospirillum spp.12260272
[2H2]GA20-G + A. lipoferum strain USA5b2,1004102,510
[2H2]GA20-GE + A. lipoferum strain USA5b31078388
[2H2]GA20-G + A. brasilense strain Cd530110640
[2H2]GA20-GE + A. brasilense strain Cd24038278

Results represent a typical subsample from one replicate, injected several times without noticeable differences.