THE RELATIONSHIP BETWEEN PLAKTONIC AND SESSILE MICROBIAL POPULATION ADENOSINE TRIPHOSPHATE BIOBURDENS IN DIESEL FUEL MICROCOSMS

摘要

Fluid samples drawn from the fuel,interface and water phases of fuel over water microcosms were tested for cellular Adenosine triphosphate (cATP).Additionally,surface swab samples from steel corrosion coupon surfaces exposed to each of these three phases were collected and tested for total ATP (tATP).Relationships between planktonic and sessile population ATP concentrations were determined,as were relationships among ATP bioburdens in each of the three listed microcosm phases.This paper describes the relationship between planktonic and biofilm population ATP bioburdens in:1) the bottoms-water,2) interface,3) fuel phases,and 4) biofilms of the tested steel coupons;the relationships among planktonic ATP-bioburdens in each fluid phase and the relationship among biofilm bioburdens on each corrosion coupon zone.