Supported by National Basic Research Project (Grant No. 2003CB114205);Key Technologies R&D Programme (Grant No. 2004BA713B02-03)
Among eight components of avermectin, B1 fractions have the most effective antiparasitic activities and the lowest level of toxic side-effects and are used widely in veterinary and agricultural fields. In-traspecific ...
Supported by the National Basic Research Program of China (Grant No. 2003CB114205)
In Streptomyces griseus, AdpA, the key transcriptional activator in the A-factor regulatory cascade, switches on the transcription of multiple genes required for secondary metabolism and morphological differentiation....