Photo-oxidative stress in symbiotic and aposymbiotic strains of the ciliate Paramecium bursaria.

Abstract

We tested the hypothesis that photo-oxidative stress is greater in symbiotic representatives of the freshwater ciliate Paramecium bursaria than in aposymbiotic (i.e., without Chlorella) ones. The level of oxidative stress was determined by assessing reactive oxygen species (ROS) with two fluorescent probes (hydroethidine and dihydrorhodamine123) by flow… (More)

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