Table 3.

In situ rates of product formation after microinjection of H14CO3 into the major gut sections of agarose-embedded hindguts of Cubitermes spp. incubated under air or an H2 atmospherea

Termite speciesIncubation atmosphereProductFormation rate (nmol gut−1 h−1)
P1P3/4aP4b
C. umbratusH2Acetateb0.650.31
Formate
C. orthognathusAirAcetate0.12
Formate0.09
H2Acetate0.050.690.22
Formate0.360.18
  • a C. orthognathus was fed with fresh soil 24 h before the measurements. C. umbratusguts did not form any products when incubated under air (see text).

  • b —, below the detection limit (0.02 nmol section−1 h−1).