+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Serine metabolism in Lactobacillus plantarum

, : Serine metabolism in Lactobacillus plantarum. International journal of food microbiology31 89(2-3): 265-273

This study investigated the metabolism of (L-) serine by Lactobacillus plantarum B3089 isolated from cheese. Serine was deaminated by growing cells to ammonia with the corresponding formation of acetate and formate. Serine was also deaminated by non-growing cells to ammonia but with the formation of acetate only (no production of formate). Phosphoserine and threonine were not catabolised. It is proposed that serine was deaminated by serine dehydratase (deaminase) to ammonia and pyruvate. Pyruvate was further catabolised predominantly to acetate, carbon dioxide and formate in growing cells, catalysed by pyruvate-formate lyase and pyruvate oxidase; some of the pyruvate was converted to acetoin. In non-growing cells, however, pyruvate-formate lyase was inactive and pyruvate oxidase degraded the pyruvate to acetate and carbon dioxide. Serine dehydratase activity could not be detected in cell-free extracts, presumably because of enzyme instability. The growth of L. plantarum was neither enhanced nor stimulated by serine under the current conditions. Whereas there was little difference in serine utilisation between pH 7.0 and pH 5.8, serine utilisation was decreased by 30% at pH 5.0. NaCl of up to 4% (w/v) concentration had little effect on serine utilisation. Serine had no impact on lactose metabolism. Lactose was fermented mainly to lactate (73%) with the remainder converted to an unidentified polysaccharide (27%).


PMID: 14623392

DOI: 10.1016/s0168-1605(03)00157-0

Other references

Ishihara, S.; Taira, N.; Kawasaki, K.; Ishibe, Y.; Mizoo, T.; Nishiyama, K.; Iwamoto, T.; Nogami, T.; Motoki, T.; Shien, T.; Matsuoka, J.; Doihara, H.; Komoike, Y.; Sato, S.; Kanazawa, S., 2013: Association between mammographic breast density and lifestyle in Japanese women. A high mammographic breast density is considered to be a risk factor for breast cancer. However, only a small number of studies on the association between breast density and lifestyle have been performed. A cross-sectional study was performed usin...

Rahm, G., 1937: Frei lebende Nemato-den von Van-Chia-Ping-Tai (Nordchina). Zoologischer Anzeiger Leipzig, 119: 87-97

Dethier, V.G., 1958: Anatomy and physiology; a summary. A.M.A. Archives of Industrial Health 17(5): 535-536

Elbers, A.R., 1996: Utilization of serum banks for veterinary seroepidemiological research serving the Dutch livestock industry. Various new developments confront livestock production, in which certification, monitoring and surveillance of animal health are becoming major items. In that respect serum banks can be a helpful epidemiological tool to provide valid data for deci...

Parry, J., 2005: Global Fund withdraws grants to Myanmar. Bulletin of the World Health Organization 83(10): 724-725

Ramalho-Santos, Jão.; Amaral, A.; Brito, R.; Freitas, M.; Almeida Santos, T., 2004: Simultaneous analysis of cytoskeletal patterns and chromosome positioning in human fertilization failures. Objective: To sequentially and reliably apply both tubulin immunocytochemistry (ICC) and fluorescence in situ hybridization (FISH) to human fertilization failures, thus providing a toot for a multiple analysis of arrest. Design: Analysis of human...

Tremblay, S.; Hannah, R.; Rawji, V.; Rothwell, J.C., 2017: Modulation of iTBS after-effects via concurrent directional TDCS: A proof of principle study. Polarising currents can modulate membrane potentials in animals, affecting the after-effect of theta burst stimulation (TBS) on synaptic strength. We examined whether a similar phenomenon could also be observed in human motor cortex (M1) using tra...

Anonymous, 2002: Supplying skilled staff when and where they re required. Farmers Weekly 137(5): 9

Boyer C.; Shafer M A.; Tschann J., 1991: Evaluation of a std hiv education and skills building intervention for high school students. Istituto Superiore Di Sanita Vii International Conference on Aids: Science Challenging Aids; Florence, Italy, June 16-21, 464p (Vol 1); 460p (Vol 2) Istituto Superiore Di Sanita: Rome, Italy Paper : 42b1

Hochberger, W.C.; Hill, S.K.; Nelson, C.L.M.; Reilly, J.L.; Keefe, R.S.E.; Pearlson, G.D.; Keshavan, M.S.; Tamminga, C.A.; Clementz, B.A.; Sweeney, J.A., 2016: Unitary construct of generalized cognitive ability underlying BACS performance across psychotic disorders and in their first-degree relatives. Despite robust evidence of neurocognitive dysfunction in psychotic patients, the degree of similarity in cognitive architecture across psychotic disorders and among their respective first-degree relatives is not well delineated. The present study...