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. 2007 Jun 7;104(27):11145–11149. doi: 10.1073/pnas.0703860104

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© 2007 by The National Academy of Sciences of the USA

Freely available online through the PNAS open access option.

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Fig. 4. — QS occurs in V. cholerae^Cl strain O395 despite a nonfunctional HapR. (A) qrr-lux (left bars) and vca0939-lux (right bars) expression in V. cholerae^Cl monocultures. (B) V. cholerae^Cl CAI-1⁻, AI-2⁻ mutant carrying either qrr-lux (left bars) or vca0939-lux (right bars) in a 1:1 coculture with either a V. cholerae^Cl CAI-1⁻, AI-2⁻ strain (−AIs, open bars), or a V. cholerae^Cl CAI-1⁺, AI-2⁺ strain (+AIs, filled bars). Mean bioluminescence/OD (Lux/OD) and the standard deviations of triplicate cultures are shown.