1 Haemophilia A is a recessive X-linked genetic disorder involving a lack of functional clotting Factor VIII and represents 80% of haemophilia cases. 2  Haemophilia B is a recessive X-linked genetic disorder involving a lack of functional clotting Factor IX.
There are other biochemical tests that help to identify Serratia marcescens in the lab. It is negative for the methyl red test due to their production of 2, 3 - butanediol and ethanol, but positive for the Voges-Proskauer test, which shows an organismâs ability to convert pyruvate to acetoin [4].ydrolysis of casein is not a common trait and is therefore useful in the differentiation of Serratia marcescens from the 438 strains of Enterobacteriaceae and Pseudomonadaceae families [12]. Serratia marcescens has the reproducible capability to break down casein producing a clearing on milk agar plates.
Spore-forming Serratia marcescens subsp. sakuensis subsp. nov., isolated from a domestic wastewater treatment tank.Ajithkumar B, Ajithkumar VP, Iriye R, Doi Y, Sakai T. A strain (KREDT) that formed endospores and produced the pigment prodigiosin was isolated from activated sludge.The presence of spores in cells of strain KREDT was evident upon electron microscopy examination, heat treatment and the detection of dipicolinic acid in the cells.Biochemical characteristics, and 16S rDNA sequence and DNA-DNA homology data identified strain KREDT as Serratia marcescens.ere, it is shown that strain KREDT (JCM 11315T = CIP 107489T) represents a novel subspecies of S. marcescens, for which the name Serratia marcescens subsp. sakuensis is proposed.