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PCR-based DGGE and FISH analysis of methanogens in an anaerobic closed digester tank for treating palm oil mill effluent Electron. J. Biotechnol.
Tabatabaei,Meisam; Zakaria,Mohd Rafein; Rahim,Raha Abdul; Wright,André-Denis G.; Shirai,Yoshihito; Abdullah,Norhani; Sakai,Kenji; Ikeno,Shinya; Mori,Masatsugu; Kazunori,Nakamura; Sulaiman,Alawi; Hassan,Mohd Ali.
16S ribosomal RNA (rRNA)-targeted fluorescent in situ hybridization combined with polymerase chain reaction (PCR)-cloning, light microscopy using Gram stains, scanning electron microscopy and denatured gradient gel electrophoresis were used to reveal the distribution of methanogens within an anaerobic closed digester tank fed with palm oil mill effluent. For specific detection of methanogens, 16S rRNA-cloning analysis was conducted followed by restriction fragment length polymorphism (RFLP) for presumptive identification of methanogens. To cover the drawbacks of the PCR-cloning study, the organization of the microorganisms was visualized in the activated sludge sample by using fluorescent oligonucleotide probes specific to several different methanogens,...
Tipo: Journal article Palavras-chave: Anaerobic digestion; DGGE; FISH; Methanogens; POME.
Ano: 2009 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582009000300012
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Diversité phylogénétique et fonctionnelle des communautés microbiennes incultivées des sédiments marins de la marge de Sonora, Bassin de Guaymas (Golfe de Californie) ArchiMer
Vigneron, Adrien.
At continental margins, and more particularly in cold seep areas, microbial and animal communities were locally detected at the surface of the sediments. These communities grow using reduced chemical compounds (H2S, Methane, COZ ...) contained in the percolated cold fluids and produced by both geological and microbial processes. ln order to study microbial community diversity in these ecosystems and their role in the environment as well as to understand the environmental factors influencing the distribution and ecophysiology of these communities, surface (0-20 cmbsf) but also deeper (<9 mbsf) sediments were collected at the Sonora Margin. Microbial communities have been studied using various molecular, cultural and microscopy approaches. This research...
Tipo: Text Palavras-chave: Fluides froids; Marge de Sonora; Bassin de Guaymas; Diversité moléculaire; Communautés microbiennes; Archaea; Bacteria; Méthanogènes; Methanogens; Microbial communities; Molecular diversity; Guaymas Basin; Sonora Margin; ANME; SRb; Methane; Sediments; Cold seeps.
Ano: 2012 URL: https://archimer.ifremer.fr/doc/00498/60956/64359.pdf
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Poblaciones microbianas ruminales en novillas alimentadas con Leucaena leucocephala en el Bosque Seco Tropical colombiano. Animal Sciences
Angarita, Erika; Molina, Isabel; Villegas, Gonzalo; Mayorga, Olga; Chará, Julián; Barahona Rosales, Rolando.
La fermentación y metanogénesis ruminal son procesos metabolicos vitales para los bovinos y son llevados a cabo por poblaciones microbianas, las cuales se afectan por factores como la presencia de metabolitos secundarios, la composición nutricional y la degradabilidad de la dieta. El objetivo de este trabajo fue monitorear las poblaciones de bacterias totales, metanógenos totales y Butirivibrio fibrisolvens en el rumen de novillas raza Lucerna, alimentadas con dietas típicas de un sistema silvopastoril intensivo y un sistema tradicional. Para ello, se colectó contenido ruminal (CR) por vía oral a ocho novillas que consumían 100% Cynodon plectostachyus (control) y 76% C. plectostachyus + 24% Leucaena leucocephala siguiendo un diseño de sobre-cambio. A...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biológicas; Salud; Agrarias bacteria; Diversity; Legume; Methanogens; Real Time Polymerase Chain Reaction (RT-PCR). Bacteria; Diversidad; Leguminosa; Metanógenos; Reacción en Cadena de la Polimerasa en Tiempo Real (PCR-TR).
Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24836
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