|
ИСТИНА |
Войти в систему Регистрация |
ИПМех РАН |
||
Дорченкова Ю.А., стажировка в International Atomic Energy Agencyстажировка в организации
- Сотрудник: Дорченкова Юлия Андреевна
- Отправляющая организация: МГУ имени М.В. Ломоносова
- Принимающая организация: International Atomic Energy Agency, Австрия
- Отправляющее подразделение: Факультет почвоведения
- Направление: Стажировка сотрудника подразделения во внешней организации
- Дата начала: 1 мая 2023 г.
- Дата окончания: 31 августа 2023 г.
- Цель стажировки: The study of antibiotic resistance and the behavior of antibiotics in soil. Training on use the nuclear technique the compound specific stable isotope analysis (CSIA). The main objective of the research was to assess the fate and environmental impact of antibiotic sulfamethoxazole (SMX) in agricultural soils using stable isotope approach. Specifically, the following five tasks were addressed: 1) Determining the rate of SMX mineralization in soil at different concentrations and application of mineral fertilizers; we obtained new data on the effect of nitrogen and phosphoric fertilizers on SMX decomposition. 2) Estimating the ratio of final gaseous products of SMX degradation (CO2/CH4) at different environmental conditions. 3) Determining the role of bacteria in SMX mineralization. With GC-IRMS we determine 13C incorporation into phospholipid-derived fatty acids (PLFAs), allowing estimating the proportion of SMX-C assimilated either by bacterial biomass. 4) Estimating the role of microbial biomass in retaining C and N derived from SMX. 5) Revealing the impact of SMX on soil C processes.