By Gloria Soberón-Chávez
Biosurfactants, tensio-active compounds produced by means of dwelling cells, at the moment are gaining expanding curiosity because of their strength functions in lots of diversified commercial parts during which thus far virtually solely artificial surfactants were used. Their specified buildings and features are only turning out to be liked. additionally, biosurfactants are thought of to be environmentally “friendly,” fairly non-toxic and biodegradable. This Microbiology Monographs quantity bargains with the newest advances within the box of microbial biosurfactants, reminiscent of rhamnolipids, serrawettins, trehalolipids, mannosylerythritol lipids, sophorolipids, surfactin and different lipopeptides. every one bankruptcy stories the features of someone biosurfactant together with the physicochemical houses, the chemical constructions, the position within the body structure of the manufacturing microbes, the biosynthetic pathways, the genetic law, and the aptitude biotechnological purposes.
Read Online or Download Biosurfactants: From Genes to Applications (Microbiology Monographs, Vol. 20) PDF
Similar microbiology books
Contemporary advances in molecular and biophysical thoughts, really fluorescence and stay telephone imaging, are revolutionizing the research of cellphone motility. New bioprobes not just show easy intracellular localization, but in addition comprise info of post-translational changes, conformational nation and protein-protein interactions.
Microbiology: A platforms process is a microbiology textual content for non-science/allied health and wellbeing majors with a physique structures method of the illness chapters. It has turn into recognized for its attractive writing kind, educational artwork application and concentrate on lively studying. we're so excited to supply a powerful studying software with student-focused studying actions, permitting the coed to regulate their studying once you simply deal with their review.
The 1st overseas Symposium at the Interface among Analytical Chemistry and Microbiology: functions of Chromatography and Mass Spectrometry used to be held June 1987 on the collage of South Carolina, Columbia, SC, U. S. A. the aim of the "Interface" assembly used to be to forge connections among analytical chemists and microbiologists which are utilizing chromatography and mass spectrometry to unravel universal difficulties.
- Na-H Exchange, Intracellular p: H, and Cell Function
- Nanoparticles in anti-microbial materials : use and characterisation
- Genetics of Bacterial Polysaccharides
- The AIDS pandemic : impact on science and society
- Fungi In Ecosystem Processes
Extra resources for Biosurfactants: From Genes to Applications (Microbiology Monographs, Vol. 20)
Thailandensis (Dubeau et al. 2009) primarily produce one RL species, Rha-RhaC14-C14. However, a number of other congeners were recently detected in cultures of the two latter (Dubeau et al. 2009), including mono-RLs, mostly Rha-C14-C14. These authors indeed confirmed the very high ratio of di-RLs vs. mono-RLs produced by these species, compared to what is observed in P. aeruginosa cultures (Dubeau et al. 2009). This is probably due to the fact that, as stated above, the Burkholderia rhlC genes encoding the second rhamnosyltransferase are part of the same operon than the rhlA and RhlB homologs, in contrast to the situation in P.
1966) purified RhlB, the enzyme catalyzing the second reaction, and partially purified RhlC, the enzyme catalyzing the third reaction. They showed that they both accepted L-rhamnosyl-b-hydroxydecanoyl-b-hydroxydecanoate, b-hydroxydecanoyl-b-hydroxydecanoate, and b-Hydroxydecanoyl-CoA as glycosyl acceptors, while free b-hydroxydecanoate was not a substrate (Burger et al. 1966). Ochsner et al. (1994a) later described RhlB, based on the analysis of the amino acid sequences deduced from rhlB as a protein with at least two putative membrane-spanning domains, which would allow anchoring in the inner membrane.
Besides RhlR/C4-HSL quorum sensing, two additional cell-to-cell communication systems participate in the quorum sensing circuitry of P. aeruginosa and influence rhlAB transcription (Fig. 3). First, the rhl system is positively upregulated by another LuxR-type regulator called LasR, which is activated by its cognate AHL N-3-oxo-dodecanoyl-HSL (3-oxo-C12-HSL) (Latifi et al. 1996; Pearson et al. 1997). Second, besides the LuxR/AHL-type circuits, P. aeruginosa carries a distinct quorum sensing system composed of the transcriptional regulator MvfR (PqsR), which directs the biosynthesis of HAQs (De´ziel et al.