par Servais, Pierre
Référence Fundamental and Applied Limnology, 37, page (73-81)
Publication Publié, 1992-09-01
Article révisé par les pairs
Résumé : Incorporation of 3H-thymidine and 3H-leucine have been measured in parallel over a large range of aquatic ecosystems (distribution water, seawater and river water) in order to compare the two methods. The bacterial activities cover a range of four orders of magnitude. A significant cor¬relation (r = 0.97 in log-log plot, n = 140) is observed between both incorporation rates. An average molar ratio of incorporation (leucine/thyrnidine) between 7 and 9.5 has been estimated. A good concordance is also observed between bacterial production calculated from thymidine incorporation (BPT) (using a conversion factor of 0.5 1018 bacteria per mole) and production estimated from leucine incorporation (BPL) (using a conversion factor of 1545 gC/mole).