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H2S and OAS/OAH SHLase activity in transformed strains of UCD522 (○, ●) and UCD713 (□, ■). Solid symbols, H2S production; open symbols, OAS/OAH SHLase activity. (A) High nitrogen, strains transformed with vector; (B) low nitrogen, strains transformed with vector; (C) high nitrogen, strains transformed with pMET17; (D) low nitrogen, strains transformed with pMET17. OAS/OAH SHLase activity is measured in arbitrary units.
