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The toxic dinoflagellate Alexandrium minutum disrupts daily rhythmic activities at gene transcription, physiological and behavioral levels in the oyster Crassostrea gigas
The toxic algae Alexandrium minutum disrupts daily gene activity, body functions, and behavior in the oyster Crassostrea gigas
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Abstract
Exposure to the harmful alga Alexandrium minutum disrupts daily rhythms in oysters, impacting gene activity and physiological functions.
- Daily activity in the oyster Crassostrea gigas is synchronized by light:dark cycles at the gene level.
- A daily rhythm of valve activity and variations in crystalline style length were observed under normal conditions.
- Exposure to A. minutum resulted in constant low levels of gene transcription across the daily cycle.
- In affected oysters, valve opening duration remained consistently high and variations in crystalline style length diminished.
- The disruption of rhythmic activities indicates potential negative impacts on the molecular, physiological, and behavioral functions of oysters.
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