Adhesion of Pseudomonas putida NCIB 9816-4 to a naphthalene-contaminated soil

Geelsu Hwang, Young Min Ban, Chang Ha Lee, Chan Hwa Chung, Ik Sung Ahn

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The effect of a soil contaminant on the initial adhesion to the soil of a contaminant-degrading soil microorganism in the exponential phase was investigated using naphthalene as the soil contaminant and Pseudomonas putida strain NCIB 9816-4 as the naphthalene-degrading bacteria. P. putida strain DK-1, which is not capable of degrading naphthalene, was used as a control. P. putida NCIB 9816-4 in the exponential phase showed the more adhesion to the soil than that in the stationary phase. In contrast, P. putida DK-1 showed the increased adhesion to the soil when it was in the stationary phase. P. putida NCIB 9816-4 in the exponential phase showed the preferred adhesion to the naphthalene-contaminated soil, whereas the adhesion of P. putida DK-1 was not affected by naphthalene. From the data of surface hydrophobicities of the cells and the soil, the microbial adhesion, especially the initial adhesion to the naphthalene-contaminated soil, takes place through the hydrophobic interaction. We suspect that the surface hydrophobicity of P. putida NCIB 9816-4 in the exponential phase might be increased during the uptake of naphthalene, which caused the preferred adhesion to the naphthalene-contaminated soil.

Original languageEnglish
Pages (from-to)91-96
Number of pages6
JournalColloids and Surfaces B: Biointerfaces
Volume62
Issue number1
DOIs
Publication statusPublished - 2008 Mar 15

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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