6 research outputs found
Caryological study of quercus humboldtii bonpl
Using lactopropionic orceine for a previus tintion we obtained the Caryotype and ideogram of Quercus humboldtii Bonpl. and we observed that it has 2 n = 24 chromosomes as most studied species of Quercus do.Se comprobó que la especie del roble Ouercus humboldtii Bonpl. tiene 2 n= 24 cromosomas, al igual que la mayoría de las especies estudiadas de Quercus. Utilizando pretratamiento y tinción con orceina lactopropiónica fue posible obtener el cariotipo e ideograma
Número de cromosomas de alnus acuminata h.b. k.
El árbol de Aliso, Alnus scuminsta H.B.K. es una de -las especies más recomendadas en reforestación y por su economíaes motivo de estudio. Se comprobó que su número cromosómico es de 2n= 28.The Aliso tree, Alnus acuminata H.B.K., is one of fue species more recommended in reforestation, and studed due to its economical value. It was reconfirmed that its chromosome nlumber is 2 n= 2
Determinación de una metodología a nivel citogenético aplicada a brugmansia sangulnea
Teniendo en cuenta diferentes factores ambientales tales como: Temperatura, humedad, hora, así como el tamaño de los meristemos radicales y botones florales se logró establecer una metodología a nivel citogenético aplicable, con pequeñas variaciones, a cualquier tipo de planta. Se obtuvieronpreparaciones de células en estado metafásico cuyos cromosomas presentaron una buena diferenciación permitiendo evidenciar la posición del centrómero y así lograr un cariotipo e ideograma real en Brugmansía sangulnea.Working with Brugmansía sanguínea and bearing in mind environmental factors such as: Temperature, humidity timeand the size of radical meristemes and floral buas, a cytogenetical metodology was set up, usable with small varlations in any kind of plants in order to get clear cut metafasicstages with well differentiated chromosomes where centromeres are easily located making easier to elaborate caryotypen and ideograms
Estudio cariológico de Quercus humboldtti Bonpl Caryological study of Quercus humboldtii Bonpl
Se comprobó que la especie del roble Ouercus humboldtii Bonpl. tiene 2 n= 24 cromosomas, al igual que la mayoría de las especies estudiadas de Quercus. Utilizando pretratamiento y tinción con orceina lactopropiónica fue posible obtener el cariotipo e ideograma.<br>Using lactopropionic orceine for a previus tintion we obtained the Caryotype and ideogram of Quercus humboldtii Bonpl. and we observed that it has 2 n = 24 chromosomes as most studied species of Quercus do
Determinación de una metodología a nivel Citogenético Aplicada a Brugmansia Sangulnea
Teniendo en cuenta diferentes factores ambientales tales como: Temperatura, humedad, hora, así como el tamaño de los meristemos radicales y botones florales se logró establecer una metodología a nivel citogenético aplicable, con pequeñas variaciones, a cualquier tipo de planta. Se obtuvieron<br />preparaciones de células en estado metafásico cuyos cromosomas presentaron una buena diferenciación permitiendo evidenciar la posición del centrómero y así lograr un cariotipo e ideograma real en Brugmansía sangulnea.<br>Working with Brugmansía sanguínea and bearing in mind environmental factors such as: Temperature, humidity time<br />and the size of radical meristemes and floral buas, a cytogenetical metodology was set up, usable with small varlations in any kind of plants in order to get clear cut metafasic<br />stages with well differentiated chromosomes where centromeres are easily located making easier to elaborate caryotypen and ideograms
A global metagenomic map of urban microbiomes and antimicrobial resistance
We present a global atlas of 4,728 metagenomic samples from mass-transit systems in 60 cities over 3 years, representing the first systematic, worldwide catalog of the urban microbial ecosystem. This atlas provides an annotated, geospatial profile of microbial strains, functional characteristics, antimicrobial resistance (AMR) markers, and genetic elements, including 10,928 viruses, 1,302 bacteria, 2 archaea, and 838,532 CRISPR arrays not found in reference databases. We identified 4,246 known species of urban microorganisms and a consistent set of 31 species found in 97% of samples that were distinct from human commensal organisms. Profiles of AMR genes varied widely in type and density across cities. Cities showed distinct microbial taxonomic signatures that were driven by climate and geographic differences. These results constitute a high-resolution global metagenomic atlas that enables discovery of organisms and genes, highlights potential public health and forensic applications, and provides a culture-independent view of AMR burden in cities.Funding: the Tri-I Program in Computational Biology and Medicine (CBM) funded by NIH grant 1T32GM083937; GitHub; Philip Blood and the Extreme Science and Engineering Discovery Environment (XSEDE), supported by NSF grant number ACI-1548562 and NSF award number ACI-1445606; NASA (NNX14AH50G, NNX17AB26G), the NIH (R01AI151059, R25EB020393, R21AI129851, R35GM138152, U01DA053941); STARR Foundation (I13- 0052); LLS (MCL7001-18, LLS 9238-16, LLS-MCL7001-18); the NSF (1840275); the Bill and Melinda Gates Foundation (OPP1151054); the Alfred P. Sloan Foundation (G-2015-13964); Swiss National Science Foundation grant number 407540_167331; NIH award number UL1TR000457; the US Department of Energy Joint Genome Institute under contract number DE-AC02-05CH11231; the National Energy Research Scientific Computing Center, supported by the Office of Science of the US Department of Energy; Stockholm Health Authority grant SLL 20160933; the Institut Pasteur Korea; an NRF Korea grant (NRF-2014K1A4A7A01074645, 2017M3A9G6068246); the CONICYT Fondecyt Iniciación grants 11140666 and 11160905; Keio University Funds for Individual Research; funds from the Yamagata prefectural government and the city of Tsuruoka; JSPS KAKENHI grant number 20K10436; the bilateral AT-UA collaboration fund (WTZ:UA 02/2019; Ministry of Education and Science of Ukraine, UA:M/84-2019, M/126-2020); Kyiv Academic Univeristy; Ministry of Education and Science of Ukraine project numbers 0118U100290 and 0120U101734; Centro de Excelencia Severo Ochoa 2013–2017; the CERCA Programme / Generalitat de Catalunya; the CRG-Novartis-Africa mobility program 2016; research funds from National Cheng Kung University and the Ministry of Science and Technology; Taiwan (MOST grant number 106-2321-B-006-016); we thank all the volunteers who made sampling NYC possible, Minciencias (project no. 639677758300), CNPq (EDN - 309973/2015-5), the Open Research Fund of Key Laboratory of Advanced Theory and Application in Statistics and Data Science – MOE, ECNU, the Research Grants Council of Hong Kong through project 11215017, National Key RD Project of China (2018YFE0201603), and Shanghai Municipal Science and Technology Major Project (2017SHZDZX01) (L.S.