Response of Isozymes in Allium to Thermal and Aerobic Stress

Abstract

Screening for tolerance to stress can be an expensive and time consuming process and can be difficult to accurately assess. If molecular markers could be identified that are linked to tolerance to a specific stress, selection would be more exact. We tested two species of onion using 18 enzyme systems to ascertain utility of the isozymes as markers for stress tolerance. Only alcohol dehydrogenase exhibited promise of differential expression under different stress conditions. Inducibility, however, was not consistent.