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Response of <i>Nodularia spumigena</i> to <i>p</i>CO<sub>2</sub> – Part 2: Exudation and extracellular enzyme activities

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Table 1. Phosphatase activity characteristics: V max is the maximum rate achieved by the sys- sys-tem at saturating substrate concentrations in nmol per litre and hour; the specific alkaline  phos-phatase activity (sAPA) gives the hydrolysis rate of the su
Table 2. Correlation of alkaline phosphatase activity (APA) with biomass of filamentous cyanobacteria (POC, chl a), PO 4 , DOP, pCO 2 , pH, N 2 fixation, and bacterial cell counts (n = 36, except for PO 4 (n = 35) and N 2 fixation (n = 32); R = correlation
Table 3. Glucosidases and leucine aminopeptidase activities at different pCO 2 (V max in nmol per litre and hour and standard deviation; n = 3) on day 15 (= day of highest activities).
Table 4. Correlation of leucine aminopeptidase activity with biomass of filamentous cyanobac- cyanobac-teria (POC, chl a), dissolved inorganic and organic N, pCO 2 , pH, N 2 fixation and bacterial cell counts (n = 36, except for NO 3 , DON (n = 35) and N 2
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