2023 Early Hearing Detection & Intervention Conference

March 5-7, 2023 • Cincinnati, OH

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5/26/2021 | 8:30 AM - 10:30 AM | WINOGRADSKY COLUMNS USED TO STUDY EFFECTS OF ROUND-UP ON BENTHIC MICROBIAL ASSEMBLAGES: PORTABLE RESEARCH FOR HYBRID COURSES | Virtual Platform

WINOGRADSKY COLUMNS USED TO STUDY EFFECTS OF ROUND-UP ON BENTHIC MICROBIAL ASSEMBLAGES: PORTABLE RESEARCH FOR HYBRID COURSES

Satisfying our students’ need for intellectual stimulation after six months of remote interaction is important however difficult while following COVID-19 safety guidelines. Students must be ready to return to remote learning at a moment’s notice greatly limits research options, especially within the context of a course. Winogradsky columns make physically spaced research possible and allows for locational flexibility. Daemen College’s Ecotoxicology course created Winogradsky columns of local wetland materials and examined the effects of different concentrations of Round-Up (source of glyphosate) on benthic microbial development and habitat nutrient cycling. Twenty-four columns were amended with 0x – 3x typical Round-Up application concentrations. For 8 weeks, regular measurements of pH, NH4+, NO3-, PO43-, and bacterial colony abundance were recorded. In all columns, pH gradually increased over time. All columns with added Round-Up experienced increases in NH4+ over time, however within the 3x treatment, these levels peaked after five weeks and then declined. Furthermore, bacterial abundance was significantly decreased in all columns with added Round-Up. Results for NO3- and PO43- are ongoing. Round-Up significantly affects the microbial community by decreasing abundance and hampering their ability to process nutrient influxes resulting from glyphosate metabolism.

Microbial ecology
Nutrient cycling
Anthropogenic

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Presenters/Authors

Sarah Whorley (), Daemen College, swhorley@daemen.edu;