Visualization of sialic acid produced on bacterial cell surfaces by lectin staining

Hitomi Kajiwara, Munetoyo Toda, Toshiki Mine, Hiroshi Nakada, Hiroyuki Wariishi, Takeshi Yamamoto

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Oligosaccharides containing N-acetylneuraminic acid on the cell surface of some pathogenic bacteria are important for host-microbe interactions. N-acetylneuraminic acid (Neu5Ac) plays a major role in the pathogenicity of bacterial pathogens. For example, cell surface sialyloligosaccharide moieties of the human pathogen Haemophilus influenzae are involved in virulence and adhesion to host cells. In this study, we have established a method of visualizing Neu5Ac linked to a glycoconjugate on the bacterial cell surface based on lectin staining. Photobacterium damselae strain JT0160, known to produce α-2,6-sialyltransferase, was revealed to possess Neu5Ac by HPLC. Using the strain, a strong Sambucus sieboldiana lectin-binding signal was detected. The bacteria producing α-2,6-sialyltransferases could be divided into two groups: those with a lot of α-2,6-linked Neu5Ac on the cell surface and those with a little. In the present study, we developed a useful method for evaluating the relationship between Neu5Ac expression on the cell surface and the degree of virulence of marine bacteria.

Original languageEnglish
Pages (from-to)152-155
Number of pages4
JournalMicrobes and Environments
Volume25
Issue number3
DOIs
Publication statusPublished - Sep 30 2010

Fingerprint

sialic acids
lectins
visualization
acid
virulence
bacterium
cells
pathogen
bacteria
Photobacterium damselae
influenza
pathogenicity
Haemophilus influenzae
glycoconjugates
adhesion
pathogens
acids
oligosaccharides
staining
microorganisms

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Soil Science
  • Plant Science

Cite this

Visualization of sialic acid produced on bacterial cell surfaces by lectin staining. / Kajiwara, Hitomi; Toda, Munetoyo; Mine, Toshiki; Nakada, Hiroshi; Wariishi, Hiroyuki; Yamamoto, Takeshi.

In: Microbes and Environments, Vol. 25, No. 3, 30.09.2010, p. 152-155.

Research output: Contribution to journalArticle

Kajiwara, Hitomi ; Toda, Munetoyo ; Mine, Toshiki ; Nakada, Hiroshi ; Wariishi, Hiroyuki ; Yamamoto, Takeshi. / Visualization of sialic acid produced on bacterial cell surfaces by lectin staining. In: Microbes and Environments. 2010 ; Vol. 25, No. 3. pp. 152-155.
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