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7501“…The 58.5kb of PKS region consisting 12 PKS modules arranged in five different PKS genes, was assumed to be responsible for the biosynthesis of plecomacrolide backbone including 16-membered macrocyclic lactone. All the modules showed high similarities with typical type I PKS genes. …”
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7502por Serrano-García, Norma, Pedraza-Chaverri, José, Mares-Sámano, José Juan, Orozco-Ibarra, Marisol, Cruz-Salgado, Arturo, Jiménez-Anguiano, Anabel, Sotelo, Julio, Trejo-Solís, Cristina“…EGb 761 is a well-defined mixture of active compounds, which contains two main active substances: flavonoid glycosides (24–26%) and terpene lactones (6–8%). These compounds have shown antiapoptotic effects through the protection of mitochondrial membrane integrity, inhibition of mitochondrial cytochrome c release, enhancement of antiapoptotic protein transcription, and reduction of caspase transcription and DNA fragmentation. …”
Publicado 2013
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7503“…Only the methanolic extract of P. amarus exhibited anti-quorum sensing activity, whereby it interrupted the ability of Chromobacterium violaceum CVO26 to response towards exogenously supplied N-hexanoylhomoserine lactone and the extract reduced bioluminescence in E. coli [pSB401] and E. coli [pSB1075]. …”
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7504“…The LuxI-like protein TraI synthesizes N-acyl-homoserine lactone molecules which act as diffusible QS-signals. …”
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7505“…In contrast to other vibrios, neither the VanI/VanR acylhomoserine lactone quorum sensing system, nor the three-channel quorum sensing system affects virulence of the economically important aquatic pathogen Vibrio anguillarum. …”
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7506“…Ulva zoospores preferentially settle on N-acylhomoserine lactone (AHL) producing marine bacterial biofilms. …”
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7507“…During biodegradation, metabolites of endosulfan diol, endosulfan lactone, and endosulfan ether were also produced, but these had lesser toxicity compared with the original compound (i.e., endosulfan). …”
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7508por Savka, Michael A., Dailey, Lucas, Popova, Milena, Mihaylova, Ralitsa, Merritt, Benjamin, Masek, Marissa, Le, Phuong, Nor, Sharifah Radziah Mat, Ahmad, Muhammad, Hudson, André O., Bankova, Vassya“…In this work we showed quorum sensing inhibitory (QSI) activity of ten geographically distinct propolis samples from the United States using the acyl-homoserine lactone- (AHL-) dependent Chromobacterium violaceum strain CV026. …”
Publicado 2015
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7509por Johansson, Eva, Prade, Thomas, Angelidaki, Irini, Svensson, Sven-Erik, Newson, William R., Gunnarsson, Ingólfur Bragi, Persson Hovmalm, Helena“…High bioactive activity was found in the young leaves of the crop, and the sesquiterpene lactones are of specific interest, as other compounds from this group have shown inhibitory effects on several human diseases. …”
Publicado 2015
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7510por Costas, Celina, López-Puente, Vanesa, Bodelón, Gustavo, González-Bello, Concepción, Pérez-Juste, Jorge, Pastoriza-Santos, Isabel, Liz-Marzán, Luis M.“…[Image: see text] Many members of the LuxR family of quorum sensing (QS) transcriptional activators, including LasR of Pseudomonas aeruginosa, are believed to require appropriate acyl-homoserine lactone (acyl-HSL) ligands to fold into an active conformation. …”
Publicado 2015
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7511“…Current insights on the tentorial skeleton and its musculature permit two alternative conclusions on their transformation in Geophilomorpha: either tentorial mobility is primarily maintained in both Placodesmata and Adesmata (contrary to Manton’s arguments for immobility), or the traditional assumption of the tentorium as being mobile is a misinterpretation for Pleurostigmophora as a whole.…”
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7512por MATA-SANTOS, Taís, PINTO, Nitza França, MATA-SANTOS, Hilton Antônio, DE MOURA, Kelly Gallan, CARNEIRO, Paula Fernandes, CARVALHO, Tatiane dos Santos, DEL RIO, Karina Pena, PINTO, Maria do Carmo Freire Ribeiro, MARTINS, Lourdes Rodrigues, FENALTI, Juliana Montelli, DA SILVA, Pedro Eduardo Almeida, SCAINI, Carlos James“…The compounds that presented the best results were nor-lapachol (MLC, 1 mg/mL), lapachol (MLC 0.5 mg/mL), β-lapachone, and β-C-allyl-lawsone (MLC, 0.25 mg/mL). The larvae exposed to the compounds, at best MLC with 100% in vitro activity larvicide, were inoculated into healthy BALB/c mice and were not capable of causing infection, confirming the larvicide potential in vitro of these compounds.…”
Publicado 2015
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7513por Isah, Tasiu“…The primary compounds receiving increasing research interest are the triterpene lactones and flavonoids; these are the target of biotechnological strategies being employed to enhance production. …”
Publicado 2015
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7514“…The products of all enzymes but 6-phospho-D-glucono-1,5-lactone were formed when sepharose-immobilized N(6)-CM-NAD was recycled by T. maritima glycerol dehydrogenase, indicating that N(6)-immobilized NAD is suitable for use by a variety of different dehydrogenases. …”
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7515“…First, inspired by yoghurt-making processes, we use caseins (a family of milk proteins) as pH-responsive building blocks and the acidulent glucono-δ-lactone to design a porous biogel film immersed in a confined buoyancy-matched viscous medium. …”
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7516por Drougka, E., Foka, A., Posantzis, D., Giormezis, N., Anastassiou, E.D., Petinaki, E., Spiliopoulou, I.“…The genes mecA, mecC, lukF/lukS-PV (encoding Panton-Valentine leukocidin, PVL) and tst (toxic shock syndrome toxin-1) were investigated by PCR. …”
Publicado 2015
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7517“…MS/MS spectra showed that most of the products were formed by the removal of double bond in the terminal furan ring and modification of lactone group indicating less toxicity as compared to parent compounds. …”
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7518“…Burkholderia thailandensis uses acyl-homoserine lactone-mediated quorum sensing systems to regulate hundreds of genes. …”
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7519por Luciardi, María C., Pérez Hernández, María V., Muruaga, Nora, Bardón, Alicia, Arena, Mario E., Cartagena, Elena“…Particularly, volatile metabolites from Merremia dissecta creeper, a food and medicinal plant, were able to interfere with the Pseudomonas aeruginosa quorum sensing system by a strong decrease of N-acyl homoserine lactone (AHL) biosynthesis (63–75%), which attenuated the virulence factor expression like biofilm (55%) and elastase activity (up to 27%), key factors that enable the colonization and dissemination of the infection in the host. …”
Publicado 2016
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7520“…A seasonal pattern was observed for the occurrence of metabolites that included sugars, sesquiterpenes lactones and phenolics in the leaf and stem parts, which can be correlated to the amount of rainfall and changes in temperature. …”
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