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2017
Silva, Michelli Massaroli Da; Andrade, Moacir Dos Santos; Bauermeister, Anelize; Merfa, Marcus Vinícius; Forim, Moacir Rossi; Fernandes, João Batista; Vieira, Paulo Cezar; Silva, Maria Fátima Fernandes Da; Lopes, Norberto Peporine; Machado, Marcos Antônio; Souza, Alessandra Alves De
In: Molecules 2017, Vol. 22, Page 985, vol. 22, iss. 6, pp. 985, 2017, ISSN: 1420-3049.
Abstract | Links | BibTeX | Tags: diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa
@article{nokey,
title = {A Simple Defined Medium for the Production of True Diketopiperazines in Xylella fastidiosa and Their Identification by Ultra-Fast Liquid Chromatography-Electrospray Ionization Ion Trap Mass Spectrometry},
author = {Michelli Massaroli Da Silva and Moacir Dos Santos Andrade and Anelize Bauermeister and Marcus Vinícius Merfa and Moacir Rossi Forim and João Batista Fernandes and Paulo Cezar Vieira and Maria Fátima Fernandes Da Silva and Norberto Peporine Lopes and Marcos Antônio Machado and Alessandra Alves De Souza},
url = {https://www.mdpi.com/1420-3049/22/6/985/htm https://www.mdpi.com/1420-3049/22/6/985},
doi = {10.3390/MOLECULES22060985},
issn = {1420-3049},
year = {2017},
date = {2017-01-01},
journal = {Molecules 2017, Vol. 22, Page 985},
volume = {22},
issue = {6},
pages = {985},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.},
keywords = {diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa},
pubstate = {published},
tppubtype = {article}
}
Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.
Silva, Michelli Massaroli Da; Andrade, Moacir Dos Santos; Bauermeister, Anelize; Merfa, Marcus Vinícius; Forim, Moacir Rossi; Fernandes, João Batista; Vieira, Paulo Cezar; Silva, Maria Fátima Fernandes Da; Lopes, Norberto Peporine; Machado, Marcos Antônio; Souza, Alessandra Alves De
In: Molecules 2017, Vol. 22, Page 985, vol. 22, iss. 6, pp. 985, 2017, ISSN: 1420-3049.
Abstract | Links | BibTeX | Tags: diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa
@article{nokey,
title = {A Simple Defined Medium for the Production of True Diketopiperazines in Xylella fastidiosa and Their Identification by Ultra-Fast Liquid Chromatography-Electrospray Ionization Ion Trap Mass Spectrometry},
author = {Michelli Massaroli Da Silva and Moacir Dos Santos Andrade and Anelize Bauermeister and Marcus Vinícius Merfa and Moacir Rossi Forim and João Batista Fernandes and Paulo Cezar Vieira and Maria Fátima Fernandes Da Silva and Norberto Peporine Lopes and Marcos Antônio Machado and Alessandra Alves De Souza},
url = {https://www.mdpi.com/1420-3049/22/6/985/htm https://www.mdpi.com/1420-3049/22/6/985},
doi = {10.3390/MOLECULES22060985},
issn = {1420-3049},
year = {2017},
date = {2017-01-01},
journal = {Molecules 2017, Vol. 22, Page 985},
volume = {22},
issue = {6},
pages = {985},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.},
keywords = {diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa},
pubstate = {published},
tppubtype = {article}
}
Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.
Silva, Michelli Massaroli Da; Andrade, Moacir Dos Santos; Bauermeister, Anelize; Merfa, Marcus Vinícius; Forim, Moacir Rossi; Fernandes, João Batista; Vieira, Paulo Cezar; Silva, Maria Fátima Fernandes Da; Lopes, Norberto Peporine; Machado, Marcos Antônio; Souza, Alessandra Alves De
In: Molecules 2017, Vol. 22, Page 985, vol. 22, iss. 6, pp. 985, 2017, ISSN: 1420-3049.
Abstract | Links | BibTeX | Tags: diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa
@article{nokey,
title = {A Simple Defined Medium for the Production of True Diketopiperazines in Xylella fastidiosa and Their Identification by Ultra-Fast Liquid Chromatography-Electrospray Ionization Ion Trap Mass Spectrometry},
author = {Michelli Massaroli Da Silva and Moacir Dos Santos Andrade and Anelize Bauermeister and Marcus Vinícius Merfa and Moacir Rossi Forim and João Batista Fernandes and Paulo Cezar Vieira and Maria Fátima Fernandes Da Silva and Norberto Peporine Lopes and Marcos Antônio Machado and Alessandra Alves De Souza},
url = {https://www.mdpi.com/1420-3049/22/6/985/htm https://www.mdpi.com/1420-3049/22/6/985},
doi = {10.3390/MOLECULES22060985},
issn = {1420-3049},
year = {2017},
date = {2017-01-01},
journal = {Molecules 2017, Vol. 22, Page 985},
volume = {22},
issue = {6},
pages = {985},
publisher = {Multidisciplinary Digital Publishing Institute},
abstract = {Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.},
keywords = {diketopiperazines, electrospray ionization, Fast Liquid Chromatograph, mass spectrometry, Ultra, X. fastidiosa medium XFM, Xylella fastidiosa},
pubstate = {published},
tppubtype = {article}
}
Diketopiperazines can be generated by non-enzymatic cyclization of linear dipeptides at extreme temperature or pH, and the complex medium used to culture bacteria and fungi including phytone peptone and trypticase peptone, can also produce cyclic peptides by heat sterilization. As a result, it is not always clear if many diketopiperazines reported in the literature are artifacts formed by the different complex media used in microorganism growth. An ideal method for analysis of these compounds should identify whether they are either synthesized de novo from the products of primary metabolism and deliver true diketopiperazines. A simple defined medium (X. fastidiosa medium or XFM) containing a single carbon source and no preformed amino acids has emerged as a method with a particularly high potential for the grown of X. fastidiosa and to produce genuine natural products. In this work, we identified a range of diketopiperazines from X. fastidiosa 9a5c growth in XFM, using Ultra-Fast Liquid Chromatography coupled with mass spectrometry. Diketopiperazines are reported for the first time from X. fastidiosa, which is responsible for citrus variegated chlorosis. We also report here fatty acids from X. fastidiosa, which were not biologically active as diffusible signals, and the role of diketopiperazines in signal transduction still remains unknown.