The osmoprotective effect of L-carnitine factor on the bacterial growth of Streptococcus agalactiae and Escherichia coli

Meltem M., Yildiz A., Erkan Y., Tulin G.

AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH, cilt.4, sa.16, ss.1708-1712, 2010 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 4 Sayı: 16
  • Basım Tarihi: 2010
  • Dergi Adı: AFRICAN JOURNAL OF MICROBIOLOGY RESEARCH
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.1708-1712
  • Çukurova Üniversitesi Adresli: Evet

Özet

In response to osmotic stress, gram positive bacteria Streptococcus agalactiae and enterobacteria Escherichia coli accumulates compatible solutes from the medium, stress response systems may enable bacteria to adapt cellular response and survival systems to a variety of stress conditions. S. agalactiae and E. coli strains have a transporter for carnitine that can respond to osmotic stress by regulating its own activity. Brain heart infusion (BHI) broth medium with 1 mM L-carnitine was the medium with the highest growth to be observed. The growth of the E. coli strain was faster than the growth of S. agalactiae strain. S. agalactiae and E. coli are known as bacteria being hard to grow at the laboratory tests for making clinical diagnosis. The medium with L-carnitine factor used in laboratory tests accelerates the bacterial growth.