Adaptation of Aspergillus niger to short-term salt strees

Jong Chul Park, Yasuyuki Nemoto, Tomoo Homma, Weimin Jing, Yuansong Chen, Hideaki Matsuoka, Hirokazu Ohno, Kosuke Takatori, Hiroshi Kurata

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Abstract

Adaptation of filamentous fungi to short-term salt stress has been analysed by a continuous measurement system. Spores of Aspergillus niger were immobilized on the polylysine-coated glass bottom of a culture vessel, which enabled the exchange of a medium containing salt (NaCl) without disturbing continuous observation. Repeated contacts with 0.75% NaCl produced hypha insensitive to this concentration of NaCl. When the NaCl concentration was increased stepwise, the tolerated concentration increased up to 1.25%. The acquisition of such a tolerance to 0.75% NaCl required about 10 min prior contact with 0.5% NaCl. Based on these results, the adaptation mechanism is discussed.

Original languageEnglish
Pages (from-to)394-398
Number of pages5
JournalApplied Microbiology and Biotechnology
Volume40
Issue number2-3
DOIs
Publication statusPublished - 1993 Nov 1

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Applied Microbiology and Biotechnology

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    Park, J. C., Nemoto, Y., Homma, T., Jing, W., Chen, Y., Matsuoka, H., Ohno, H., Takatori, K., & Kurata, H. (1993). Adaptation of Aspergillus niger to short-term salt strees. Applied Microbiology and Biotechnology, 40(2-3), 394-398. https://doi.org/10.1007/BF00170399