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  • Improved method for intracellular pH determination in filamentous fungi
    Legiša, Matic ; Golič Grdadolnik, Simona
    Until now, it was difficult to accurately determine the intracellular pH of filamentous fungi growing in large bioreactors. In order not to change the pH[sub]i values during the preparation of ... samples and [sup](31)P-NMR measurements, a new technique was developed that quenched the metabolism immediately after taking the cells out of the growing environment. It has been done by immersing the mycellium in cold buffered methanol at -40 [sup]oC. The temperature of the samples was maintained low even during the accumulation of scans in the NMR magnet. Since frozen cells were surrounded by liquid buffered methanol, sufficient motion of molecules containing phosphorous was possible to enable the formation of high-resolution NMR spectra. The method has proven to be reliable enough for monitoring the changes of apparent intracellular pH that occur during hypoxia in a fermenter
    Vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 47, no. 3, 2000, str. 389-400)
    Vrsta gradiva - članek, sestavni del
    Leto - 2000
    Jezik - angleški
    COBISS.SI-ID - 2183706

vir: Acta chimica slovenica. - ISSN 1318-0207 (Vol. 47, no. 3, 2000, str. 389-400)

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