acetic acid stress induced a slower transcriptional response and large variations in growth patterns compared with the re- observe´e chez les bacte´ries expose´es a` l’acide ace´tique ou
acetic acid (De Miniac 1989; Chatonnet et al 1995; De´lia-Dupuy et al 1995; Gilis 1999) The increase in acetic acid concentration inhibits Saccharomyces cerevisiae growth and so diminishes the capacity for this yeast to produce ethanol (Gero´s et al 2000) and consequently brings about a decrease in the alcohol yield
dependentmeasurements Thishighreplicationwasnecessary becauseweobservedsomeday-to-dayvariations,andlot-to-lot variationsinIAA,inthecourseofthisstudy Calibration
Indole acetic acid production in King’s B medium con-taining 100 mg L–1 L-tryptophan was carried out using the colorimetric method of Gordon and Weber (1951) All bac-terial isolates produced indole acetic acid in the presence of tryptophan Phosphate solubilizing activity was tested on NBRIP (Nautiyal 1999) and on calcium phytate (Rosado et
acetic acid vapour was up to ~0 002 mg/cm 2 day (mcd) for 40 RH, ~0 07 mcd for 80 RH and ~0 23 mcd for 100 RH Formic acid vapours yielded a copper corrosion rate of up to ~0 005 mcd
Four of the strains tested showed production of indole acetic acid Plant growth, osmotic potential, free proline content, and gene expression were monitored in leaves and roots under control and mild osmotic stress conditions All indole ace-tate producers promoted growth in Capsicum annuum L ‘Ziegenhorn Bello’, from which they were
acide acétique • filtre • prélèvement • analyse • chromatographie ionique SAMPLING AND quantitatively analysing the acetic acid present in the air of tute the method recommended until now of sampling at Le remplace- ment du support de rétention par un filtre tique et ses dérivés ont des utilisations multiples (fig
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Fabrication d'anhydride acétique, acétate de cellulose, acétate de vinyle des contaminants sur le lieu de travail : les vapeurs de vinaigre chauffé (4 à 10 d 'acide acétique) et les poussières d'épices Au point de vue technique
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le complexe mixte acétate - sulfate acide de tique de l'Institut National des Sciences et Techniques Nucléaires de tique anhydre se dissocie partiellement
method described by Oakley, W eissbecker, and Resnik (7), the methyl esters of acetic and formic acids are formed on an anion support in preference to acetic acid The precision of the method eleve en acide ace- tique qu'en TPM seche
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