Expression and Purification of the Diphtheria Toxin Variant CRM197 in Corynebacterium diphtheriae Small Ubiquitin-Like Modifier Conjugating Enzyme with Active Site Mutation Acts as Dominant Negative Inhibitor of SUMO Conjugation in Arabidopsis The Construction of the Gene Transfer System of Strain Streptomyces sp. 211726 Producing Azalomycin F Labeling of Pseudomonas fluorescens P303 strain with green fluorescent protein and monitoring of its survival ability