• AbstTact: P. tricomutum was grown in batch cultures under 2rC temperature and continuous irradiance of 183 ,uE.m-2. sol, provided by fluorescent light tubes. Cultures growth were followed by cell countings, "in vivo" fluorescence and cellular proteio, carbohydrate and ch1orophyll-a contento The maximum value of protein/carbohydrate ratio was found at tbe exponential phase and tbe minimum value at tbe stationary phase. This ratio characterizes the physiological stage of the culture. Cell uptake rates for nitrate, ammonium and phosphate from the media were higher during the lag-phase. Nitrite excretion by tbe cells were detected following nitrate uptake.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.