English to Spanish Science Biology (-tech,-chem,micro-)

Hola a todos, mi consulta es sobre "syntethic drop-out (SD) media" en este contexto:

"A uracil auxotrophic strain of Saccharomyces cerevisiae producing phloretin, harbouring HaCHS (....), was transformed with the PGT2-2-containing vector or the empty vector according to Gietz and Schiestl (2007), plated in synthetic drop-out (SD) media (Sigma-Aldrich, Germany) without uracil and leucine (SD-U-L) and incubated at 30ºC for 3 days. Then, a single transformant colony was grown overnight in 5 mL SD-U-L at 30ºC, 200 rpm and used to inoculate 50 mL SD-U-L."

En otra entrada encontré que sugirieron "medios selectivos deficientes en algún aminoácido", habrá una forma más acotada?

Muchas gracias!