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High capacity xylos...
High capacity xylose transport in Candida intermedia PYCC4715.
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- Gárdonyi, Márk (author)
- Lund University,Lunds universitet,Teknisk mikrobiologi,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Applied Microbiology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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Österberg, Måns (author)
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Rodrigues, C (author)
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Spencer-Martins, I (author)
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- Hahn-Hägerdal, Bärbel (author)
- Lund University,Lunds universitet,Teknisk mikrobiologi,Centrum för tillämpade biovetenskaper,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Applied Microbiology,Center for Applied Life Sciences,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2003
- 2003
- English.
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In: FEMS Yeast Research. - 1567-1364. ; 3:1, s. 45-52
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Xylose-utilising yeasts were screened to identify strains with high xylose transport capacity. Among the fastest-growing strains in xylose medium, Candida intermedia PYCC 4715 showed the highest xylose transport capacity. Maximal specific growth rate was the same in glucose and xylose media (small mu, Greekmax=0.5 h−1, 30°C). Xylose transport showed biphasic kinetics when cells were grown in either xylose- or glucose-limited culture. The high-affinity xylose/proton symport system (Km=0.2 mM, Vmax=7.5 mmol h−1 g−1) was more repressed by glucose than by xylose. The less specific low-affinity transport system (K=50 mM, Vmax=11 mmol h−1 g−1) appeared to operate through a facilitated-diffusion mechanism and was expressed constitutively. Inhibition experiments showed that glucose is a substrate of both xylose transport systems.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Industriell bioteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Industrial Biotechnology (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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