However, lab experiments quantifying symbiont choice in A. texana suggest that choice may be a comparatively weak mechanism, as workers do not show a strong and consistent cultivation-bias between closely-related Attamyces strains presented to the ants in laboratory experiments [22, R. Sen & U.G. Mueller unpublished].
Reproducible cultivation with low variance ensures consistent performance of the fermenting microorganism and reduces the technological risk.
This observation suggested strong recovery by strain D5A+H from introduced toxic by-products after the third feed, especially in light of the final ethanol titres recorded in this culture, whereas the behaviour of strain TMB3400 remained more consistent throughout the cultivation.
In contrast, NAD+-ICDH activity was remained consistent throughout the cultivation period under respective nitrogen treatments except NaNO3.
On many catheters the DGGE results, especially the external site, were consistent with the cultivation data.
Consistent with the cultivation data, Salmonella sequences decreased in relative abundance with time and were almost entirely absent by 21d.
The CD271 surface marker was not expressed at any stage during UC MSC cultivation, consistent with the loss observed in BM MSCs.
This study contributes important information for crop protection in algae systems, and demonstrates the complex ecosystems that need to be understood for consistent, successful industrial algae cultivation.
The researchers say that this early date for banana cultivation is consistent with the findings of another team working at the site of Nkang, in southern Cameroon, which previously found evidence of banana cultivation dating back about 2500 years ago--a finding that was controversial at the time but which now, they say, seems much less so.
Enzyme kinetic studies during the cultivation indicated consistent production of the three heterologous enzymes in E. coli, i.e., Buk, Ptb and AdhE2.
