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Table 6 pH dependend Li+-sensitivity of E. coli DH5α

From: NhaD type sodium/proton-antiporter of Halomonas elongata: a salt stress response mechanism in marine habitats?

MM Na+/mM Li+ pH 7 pH 7.5 pH 8 pH 8.5 pH 9
pUC18 control      
500/0 +++ +++ ++ + -
400/100 ++ ++ + + -
300/200 + + + (+) -
200/300 - - - - -
pUCHelNhaD      
500/0 +++ +++ ++ + -
400/100 ++ ++ + (+) -
300/200 + + (+) - -
200/300 - - - - -
  1. Growth of E. coli strains DH5α pUC18 and DH5α pUCHelNhaD on solid and in liquid MM63 minimal medium, low-phosphate version supplemented with NaCl and LiCl as indicated. Growth quality judged from colony size and microscopic behaviour: +++ very good, ++ good, + poor, (+) mere survival of cells, - no growth.