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Mostrando ítems 1-20 de 21
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La agenda de Seguridad Alimentaria del MERCOSUR en el periodo 2003-2015
(Facultad de Ciencias Económicas, Universidad de Buenos Aires, 2017-12)El tema que se aborda es la agenda de seguridad alimentaria regional (ASAR) del MERCOSUR “posneoliberal”, es decir en el periodo 2003-2015), entendiendo como seguridad alimentaria (SA) al acceso físico, social y económico ... -
Brazilian Flora 2020: Leveraging the power of a collaborative scientific network
(Wiley, 2022-02)The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiver sity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. ... -
Climate change adaptation and the agricultural sector in South American countries: Risk, vulnerabilities and opportunities
(Sociedade Brasileira de Ciência do Solo, 2021-11-05)South America covers a vast area with diverse climates and landscapes, with high participation in the global production of food and fibers. It is crucial to understand the risks, vulnerabilities, and opportunities that ... -
Cytogeography and morphological characterisation of a taxonomic, polyploid complex of Mimosa (Leguminosae) from subtropical South America
(CSIRO Publishing, 2018)Mimosa subseries Dolentes Barneby and Brevipedes Barneby are ecologically and morphologically high-diversified infrageneric taxa of this genus in southern South America. We performed a cytogenetical and morphological ... -
Facing climate change: Range dynamics and chromosome diversity in Hedeoma multiflora benth, a South American aromatic - medicinal plant at risk
(Elsevier, 2024-04-25)Climate change could significantly affect the geographic distribution of plant species. Hedeoma multiflora is a vulnerable medicinal and aromatic herb that distributes in the Pampa, Espinal and Chaco biogeographic provinces ... -
Fading opportunities for mitigating agriculture-environment trade-offs in a south American deforestation hotspot
(Elsevier, 2021-10)Strong trade-offs between agriculture and the environment occur in deforestation frontiers, particularly in the world's rapidly disappearing tropical and subtropical dry forests. Pathways to mitigate these trade-offs are ... -
First identification of bacterial endosymbionts in three South-American spittlebug pests: Notozulia entreriana, Deois mourei and Deois knoblauchii
(Alma Mater Studiorum, Università di Bologna, 2022-06)Spittlebugs cause major pasture damage in the Neotropics. As most xylem-feeders, they depend on microbial symbionts to supply essential amino acids to their diet. Here, the obligate nutritional endosymbiont ‘Candidatus ... -
First record of males of the invasive eucalyptus pest species Leptocybe invasa Fisher & LaSalle, 2004 (Hymenoptera: Eulophidae: Tetrastichinae) from South America
(Forschungs Museum Koenig, 2019-12)The “blue gum chalcid”, Leptocybe invasa is a pest of eucalyptus worldwide. It has an Australian origin and has expanded into Asia, Europe, Africa and America. L. invasa females were reported from South America in the last ... -
Forest browning trends in response to drought in a highly threatened mediterranean landscape of South America
(Elsevier, 2020-08)Deforestation is widely studied throughout the world. However, a less evident issue is the effect of climate change and drought on remnants of native forests. The objective of this work was to understand the geographic ... -
Identification and molecular characterization of Orf virus infection in occupationally exposed women in South America
(Elsevier, 2023-06)Contagious Ecthyma (CE) is a severe exanthematous dermatitis caused by the Orf virus (ORFV) that mainly affects domestic small ruminants such as sheep and goats. It is a worldwide-distributed occupational zoonosis, ... -
Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from Southern South America and ecological and taxonomic relationships
(Taylor & Francis, 2011)In this work we studied the chromosome number and karyotype formula of seven species of Mimosa L. (Mimosoideae, Leguminosae). The chromosome number 2n = 2x = 26 for M. detinens Benth., M. hex- andra M. Micheli, M. ostenii ... -
Munroa argentina, a grass of the South American transtion zone, survived the Andean uplift, aridification and glaciations of the quaternary
(2015-06-25)The South American Transition Zone (SATZ) is a biogeographic area in which not only orogeny (Andes uplift) and climate events (aridification) since the mid-Miocene, but also Quaternary glaciation cycles had an important ... -
Nivel de ADN-Ploidía en poblaciones sudamericanas y norteamericanas de la gramínea nativa disyunta Trichloris crinita (Chloridoideae, Poaceae)
(Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, 2021-04-24)Trichloris crinita es una gramínea nativa de distribución disyunta que habita regiones áridas y semiáridas de Sud y Norteamérica. Trabajos previos mostraron uniformidad en el nivel de ploidía en poblaciones sudamericanas ... -
Origin of new lineages by recombination and mutation in avian infectious bronchitis virus from South America
(MDPI, 2022-10)The gammacoronavirus avian infectious bronchitis virus (IBV) is a highly contagious respiratory pathogen of primary economic importance to the global poultry industry. Two IBV lineages (GI-11 and GI-16) have been widely ... -
Phylogenetic relationships of Petunia patagonica (Solanaceae) revealed by molecular and biogeographical evidence
(2015)Petunia patagonica is restricted to the Patagonian region of Argentina and its identity is controversial. The species was described in the genus Nierembergia, and subsequently transferred to the genus Petunia. However, ... -
Plants causing poisoning outbreaks of livestock in South America: A review
(Elsevier, 2023-01-21)According to Tokarnia et al. (2012), “poisonous plants of livestock interest are those that, when ingested by farm animals under natural conditions, cause health problems or death.” Following this definition, we include ... -
South American H4N2 influenza A virus improved replication in chicken trachea after low number of passages
(Frontiers Media, 2023-05)Introduction of influenza A viruses (FLUAV) into poultry from waterfowl is frequent, producing economic burden and increasing the probability of human infections. We have previously described the presence of FLUAV in wild ... -
Stability and fragmentation versus demographic expansion: different phylogeographic patterns in closely related sympatric legumes (Senna) from arid and semi-arid zones of mid-latitude South America
(Oxford University Press, 2021-03-01)This is the first comparative research in which phylogeographical patterns and present and palaeoclimatic distribution were investigated in desert plants that inhabit the Argentinian Monte and Chaco biogeographic provinces. ... -
Susceptibility of agricultural pests of regional importance in South America to a Bacillus thuringiensis Cry1Ia protein
(Elsevier, 2020-05)Bacillus thuringiensis toxins of the Cry1I class have dual specificity for insects in the orders Coleoptera and Lepidoptera. We assessed the toxicity of a Cry1Ia protein from an Argentinian B. thuringiensis strain against ... -
The origin and genetic diversity of the causal agent of Asian soybean rust, Phakopsora pachyrhizi, in South America
(Wiley, 2015-06)A sequence‐based approach was used to investigate molecular genetic variations in Phakopsora pachyrhizi, an obligate biotrophic pathogen that causes Asian soybean rust. In Argentina, the samples came from uredinium‐bearing ...