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Abstract

The proteolytic sulphide-producing bacteria (PSPB) are widely distributed in water and ediment and are a good indicator of the ecological status of ecosystems. From the ecological oint of view it is important to distinguish the physiological group of PSPB from ther bacteria producing H2S from sulphate, sulphite or thiosulphate. A new medium amed peptone-cysteine-ammonium iron citrate agar (PCA) was developed and tested. The medium regularly gave a higher number of colony forming units than the control media or detection of sulphide formation, indole production and motility (Merck) and iron sulphite agar (Oxoid). For the enumeration of PSPB from the environment, the simultaneous ncubation of samples in aerobic and anaerobic conditions is recommended and a higher number should be taken for interpretation.

Keywords

Isolation medium Plate count Proteins Sediment Sulphide-producing bacteria Water

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How to Cite
Stilinovic, B., & Hrenovic, J. (2009). Plate method for counting the proteolytic sulphide-producing bacteria. Acta Botanica Croatica, 68(1). Retrieved from https://ojs3.abc.botanic.hr/index.php/abc/article/view/132

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