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次生代谢物阻遏蛋白(Repressor of seconda~,metabolite，Rsm)A是一种全局性调控因子，与mRNA的RBS结合，转录后水平上抑制基因翻译：运用同源重组技术，构建了假单胞茵(Pseudomonas sp．)M—l8的rsntA突变菌株M—l8R。在37℃ 、28℃恒温和短期升温(37℃ 、4h培养，转28℃继续培养)条件下，比较野生株M一18和突变株M—l8R生物合成藤...
Community Structure of Macrobenthos of a Southeast Texas Sand-Pit Lake Related to Water Temperature, pH and Dissolved Oxygen Concentration
macrobenthos sand-pit lake temperature dissolved oxygen and community structure
2010/3/30
Water temperature (°C), pH, dissolved oxygen concentration (mg/l) and the community structure of the macrobenthos of a small southeast Texas sand-pit (Barry's) lake were studied from June 1995 to Febr...