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Bonnie Bassler

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Adapted from the English Wikipedia article Bonnie Bassler, available under CC BY-SA 4.0Updated 10 August 2025
Bonnie Lynn Bassler
Born1962
Chicago, Illinois, U.S.
Occupation(s)Molecular biologist, professor
Years active1990–present
Known forResearch on bacterial quorum sensing
Notable workBacterial Quorum-Sensing Network Architectures; Bacterially Speaking; Bacterial Small-Molecule Signaling Pathways

Bonnie Lynn Bassler (born 1962) is a distinguished American molecular biologist, currently holding the position of Squibb Professor and chair of Molecular Biology at Princeton University, as well as serving as an Investigator for the Howard Hughes Medical Institute. She has been a trailblazer in the study of bacterial chemical communication, known as quorum sensing, uncovering mechanisms with significant implications for developing antimicrobial treatments.

Bassler’s groundbreaking research has been recognized with numerous esteemed honors, including the Princess of Asturias Award in 2023, the Paul Ehrlich and Ludwig Darmstaedter Prize in 2021, the Pearl Meister Greengard Prize in 2016, the L'Oreal-UNESCO award in 2012, the Richard Lounsbery Award in 2011, the Wiley Prize in Biomedical Sciences in 2009, and a MacArthur Fellowship awarded in 2002.

She holds election to several prestigious bodies such as the National Academy of Sciences since 2006 and was named a Foreign Member of the Royal Society in 2012. Bassler also served as president of the American Society for Microbiology in 2011 and was a member of the National Science Board until 2016. From 2012 through 2017, she was editor of the Annual Review of Genetics.

Early life and education

Born in Chicago and raised in Danville, California, Bassler’s scientific journey began early at age thirteen when she worked as an assistant to veterinarians at both the Miami Zoo and a local veterinary clinic.

She started her higher education at the University of California, Davis, initially focusing on veterinary sciences before transitioning to studies in genetics and biochemistry, ultimately earning a Bachelor of Science degree in biochemistry. During her time at UC Davis, she conducted research on bacterial enzymes under professor Frederic Troy, specifically studying an enzyme from E. coli that cleaves sugars from membrane glycoproteins. Bassler has referred to prokaryotes as "ideal subjects for research." She completed her doctoral studies with a PhD in biochemistry at Johns Hopkins University in 1990.

Her postdoctoral tenure at the Agouron Institute (1990–1994), working alongside Michael R. Silverman, who originally identified quorum sensing in the marine bacterium Vibrio fischeri, profoundly influenced her career trajectory. Building upon this foundation, Bassler revealed that bacteria communicate through multiple chemical signals, effectively functioning as "multilingual" organisms.

Bassler’s research established that quorum sensing allows bacteria to differentiate between self and non-self—a trait previously believed exclusive to more complex life forms—and demonstrated that viruses, host cells, and bacteria all employ quorum sensing mechanisms. She connected this process to bacterial virulence and pioneered anti-quorum-sensing approaches capable of preventing infections caused by major bacterial pathogens in animal studies.

In 1994, Bassler joined Princeton University, where she now leads as chair of molecular biology and holds the Squibb Professorship. Her laboratory focuses on bacterial quorum sensing, a discipline that has transformed scientific perspectives on microbial behavior. The practical applications derived from her discoveries have inspired novel therapeutic approaches to combat bacterial diseases.

Her exceptional contributions have been acknowledged through accolades such as the MacArthur Fellowship awarded in 2002 and the Gruber Genetics Prize received in 2020, underscoring her influence on both foundational science and clinical innovation.

Research

During her postdoctoral studies, Bassler engineered bioluminescent genes in V. harveyi bacteria, leading to the identification of several quorum sensing molecules. She established that these bacteria use quorum sensing to regulate a wide array of genes, enabling coordinated activities both within their own species and with others, functioning similarly to multicellular organisms. Her work uncovered the critical role of boron binding as a co-factor in this signaling process, notable given boron's prevalence in the marine environments inhabited by V. harveyi.

The research conducted in Bassler's laboratory focuses on bacterial communication systems, including mechanisms for distinguishing self from non-self, interactions between ligands and receptors, the influence of small RNAs on quorum sensing regulation, biofilm formation and behavior, strategies for manipulating quorum sensing, and signaling across different kingdoms within microbiomes.

Awards and honors

Selected works

  • Ng, Wai-Leung; Bassler, Bonnie L. Bacterial Quorum-Sensing Network Architectures. Annual Review of Genetics, December 1, 2009, 43(1):197–222.
  • Bassler, Bonnie L.; Losick, Richard. Bacterially Speaking. Cell, April 2006, 125(2):237–246.
  • Camilli, Andrew; Bassler, Bonnie L. Bacterial Small-Molecule Signaling Pathways. Science, February 24, 2006, 311(5764):1113–1116.
  • Waters, Christopher M.; Bassler, Bonnie L. Quorum sensing: Cell-to-Cell Communication in Bacteria. Annual Review of Cell and Developmental Biology, November 1, 2005, 21(1):319–346.
  • Lenz, Derrick H.; Mok, Kenny C.; Lilley, Brendan N.; Kulkarni, Rahul V.; Wingreen, Ned S.; Bassler, Bonnie L. The Small RNA Chaperone Hfq and Multiple Small RNAs Control Quorum Sensing in Vibrio harveyi and Vibrio cholerae. Cell, July 9, 2004, 118(1):69–82.
  • Chen, Xin; Schauder, Stephan; Potier, Noelle; Van Dorsselaer, Alain; Pelczer, István; Bassler, Bonnie L.; Hughson, Frederick M. Structural identification of a bacterial quorum-sensing signal containing boron. Nature, January 2002, 415(6871):545–549.
  • Miller, Melissa B.; Bassler, Bonnie L. Quorum Sensing in Bacteria. Annual Review of Microbiology, October 1, 2001, 55(1):165–199.
  • Schauder, Stephan; Shokat, Kevan; Surette, Michael G.; Bassler, Bonnie L. The LuxS family of bacterial autoinducers: biosynthesis of a novel quorum-sensing signal molecule. Molecular Microbiology, December 21, 2001, 41(2):463–476.
  • Surette, Michael G.; Miller, Melissa B.; Bassler, Bonnie L. Quorum sensing in Escherichia coli, Salmonella typhimurium, and Vibrio harveyi: A new family of genes responsible for autoinducer production. Proceedings of the National Academy of Sciences, February 16, 1999, 96(4):1639–1644.
  • Bassler, Bonnie L. How bacteria talk to each other: regulation of gene expression by quorum sensing. Current Opinion in Microbiology, December 1999, 2(6):582–587.
  • Bassler, Bonnie L.; Wright,Miriam; Silverman,M.R. Multiple signalling systems controlling expression of luminescence in Vibrio harveyi : sequence and function of genes encoding a second sensory pathway. Molecular Microbiology July 1994;13(2):273–286.
  • Bassler,B.L.; Wright,Miriam; Showalter,R.E.; Silverman,M.R. Intercellular signalling in Vibrio harveyi: sequence and function of genes regulating expression of luminescence. Molecular Microbiology August1993;9(4):773–786.

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