Effects of antidepressant exposures on a stream detrital food chain: Microbial decomposers and invertebrate detritivores.

Antidepressants are often found in freshwater ecosystems, yet their potential impacts on ecological processes and species interactions remain poorly understood. This study assessed the ecological influence of fluoxetine and amitriptyline at environmentally realistic levels (1-100 ng L) on a detritus-based food chain that encompasses microbial decomposers and freshwater snails. In the experiment, we monitored the responses of microbial decomposers (biomass and enzyme activity), and Cipangopaludina cathayensis (consumption rates and antioxidant capacity), as well as leaf litter traits (decomposition rate and nutrient content).

Transcriptome Analysis Reveals POD as an Important Indicator for Assessing Low-Temperature Tolerance in Maize Radicles during Germination.

Low-temperature stress (TS) limits maize ( L.) seed germination and agricultural production. Exposure to TS during germination inhibits radicle growth, triggering seedling emergence disorders.