ChileanJAR

As part of the development of standardized ecotoxicology tests, the effects of soil agrochemicals lindane and chlorpyrifos and their vehicle, pirofilite, were tested on the survival, growth, maturation (total fitness: corrected average value) and the inhibition of alkaline phosphatase activity of the nematode Panagrellus redivivus; the gross and net photosynthesis and respiration of the microalgae Chlorella vulgaris and the root growth inhibition on onion (Allium cepa). Panagrellus and Chlorella were more sensitive to chlorpyrifos, whereas onion roots were more sensitive to lindane. Both lindane and chlorpyrifos affected Panagrellus maturation. Panagrellus and Chlorella bioassays revealed similar results for both agrochemicals, and none ofthe bioassays showed a more consistent response to the evaluated compounds.