Artículos científicos: Envíos recientes
Mostrando ítems 121-140 de 275
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Phytoplasmas diversity and identification of new aster yellows subgroup (16SrI) associated with weed species in Argentina
(Microbiology Society, 2020-02-03)Symptoms of phytoplasma infection were observed in different weed species, Bidens subalternans, Conyza bonariensis, Heterosperma ovatifolium and Conium maculatum, collected from diverse geographical regions in Argentina. ... -
First report of papaya ringspot virus w infecting momordica charantia in Cuba
(Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università di Bari, 2015-01-16)During a survey conducted in July 2010, severe mosaic and deformations were observed on the leaves of cerasee (Momordica charantia) in Villa Clara, Cuba. The symptoms resembled those induced by Papaya ringspot virus (PRSV) ... -
First report of raspberry bushy dwarf virus infecting raspberry in Argentina
(Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università di Bari, 2017-11)In 2014-2015, raspberry (Rubus idaeus) cv. Autum bliss plants with dwarfism and foliar chlorosis were observed in commercial fields in parallel 42° in the Patagonia region of Argentina. Symptoms were similar to those ... -
Viral diseases in common bean crops in Argentina
(Research Trends, 2020)Common bean (Phaseolus vulgaris) is the most important legume for direct human consumption worldwide. Several factors can affect bean yield, with viral diseases being responsible for losses in crop productivity, especially ... -
Biological and molecular characterization of bean bushy stunt virus, a novel bipartite begomovirus infecting common bean in northwestern Argentina
(Springer, 2021-02-28)Common bean plants (Phaseolus vulgaris L.) showing different virus-like symptoms were collected in northwestern Argentina. Dot-blot hybridization tests showed that the begomoviruses bean golden mosaic virus and tomato ... -
Changing scientific meetings for the better
(Nature Research, 2021-03-15)Scientific conferences are important avenues for researchers to share and discuss research findings, to exchange ideas and insights, and to network for collaboration and career development. Organizing inclusive and useful ... -
Draft Genome Sequence of " Candidatus Phytoplasma pruni" (X-Disease Group, Subgroup 16SrIII-B) Strain ChTDIII from Argentina
(American Society for Microbiology, 2020-08-24)Herein, we report the draft genome sequence of “Candidatus Phytoplasma pruni” strain ChTDIII (subgroup 16SrIII-B). The final assembly consists of 790,517 nucleotides organized in 67 contigs (minimal size, 1 kb), with a G+C ... -
Phytoplasmas of subgroup 16SrIII-J associated with Beta vulgaris in Argentina
(Springer, 2020-02-19)Symptoms of general wilting and yellowing were found affecting Beta vulgaris L. (sugar beet, fodder beet and chard) in the Argentinean region of Bahía Blanca (Buenos Aires province), Valle Medio, and Valle Inferior de Rio ... -
‘Ca. Phytoplasma pruni’ and ‘Ca. Phytoplasma meliae’ are affecting plum in Argentina
(Springer, 2020-09-29)We report for the first time the presence of phytoplasmas in association with Plum (Prunus domestica) yellowing in Argentina. Molecular analysis of 16S rDNA gene sequence (RFLP, phylogeny) reveals the existence of two ... -
Macrophomina phaseolina: General Characteristics of Pathogenicity and Methods of Control
(Frontiers Media, 2021-04-22)Macrophomina phaseolina is a generalist soil-borne fungus present all over the world. It cause diseases such as stem and root rot, charcoal rot and seedling blight. Under high temperatures and low soil moisture, this fungus ... -
Presence of both mating types of Ascochyta rabiei in Argentina suggests potential for sexual reproduction
(Springer, 2020-11-15)The presence of both mating types was tested for in twelve isolates of Ascochyta rabiei in Argentina. A MATspecific PCR assay was performed. Nine of these isolates were identified as MAT1–1 and three of them MAT1–2. This ... -
Early detection of Ascochyta blight (Ascochyta rabiei) of chickpea by traditional PCR
(Elsevier, 2020-11-16)Ascochyta blight is the major disease affecting chickpea (Cicer arietinum) around the world. Since the first report of Ascochyta rabiei's isolation in Argentina in 2012, the pathogen has caused severe economic losses in ... -
Efecto de la agriculturización sobre la calidad biológica del suelo
(Asociación Argentina Ciencias del Suelo, 2018-08-25)En la región Pampeana Argentina, la simplificación de los agroecosistemas ha ocasionado la disminución de los servicios ecosistémicos, resultando en la pérdida de recursos, y afectando la calidad del suelo. Nuestro objetivo ... -
Genome-enabled insights into the biology of thrips as crop pests
(BMC, 2020-10-19)Background The western flower thrips, Frankliniella occidentalis (Pergande), is a globally invasive pest and plant virus vector on a wide array of food, fiber and ornamental crops. While there are numerous studies centered ... -
Caracterización morfológica y cromosómica de Commelina Benghalensisl. (Commelinaceae ) de Argentina
(Ediciones de la Universidad de Concepción, Chile, 2009)Commelina benghalensis es una hierba pequeña, nativa de Africa y Asia tropical, aunque en la actualidad crece en casi todo el mundo. En América se la reporta creciendo en campo abierto, borde de bosques y áreas cultivadas ... -
Transcriptome analysis of mycorrhizal and nonmycorrhizal soybean plantlets upon infection with Fusarium virguliforme, one causal agent of sudden death syndrome
(2018-11-21)Soilborne pathogens represent a threat to agriculture causing important yield losses. Sudden death syndrome (SDS) of soybean is a severe disease caused by a complex of Fusarium species. This pathosystem has been widely ... -
Transcriptional Changes in Mycorrhizal and Nonmycorrhizal Soybean Plants upon Infection with the Fungal Pathogen Macrophomina phaseolina
(American Phytopathological Society, 2018-06-19)Macrophomina phaseolina is a soil-borne fungal pathogen with a wide host range that causes charcoal rot in soybean [Glycine max (L.) Merr.]. Control of the disease is a challenge, due to the absence of genetic resistance ... -
Firefly genomes illuminate parallel origins of bioluminescence in beetles
(eLife Sciences Publications, 2018-10-16)Fireflies and their luminous courtships have inspired centuries of scientific study. Today firefly luciferase is widely used in biotechnology, but the evolutionary origin of bioluminescence within beetles remains unclear. ... -
Preprints are good for science and good for the public
(Nature Research, 2018-08-29)We disagree with Tom Sheldon’s contention that the preprint ecosystem can present a challenge to accurate and timely journalism (Nature 559, 445; 2018). Restricting when or how preprints are released risks suppressing ... -
Plan S: take Latin America’s long experience on board
(Nature Research, 2019-09-24)We share the spirit of Plan S to achieve full open access to scholarly publications (see go.nature.com/2hszsaf), but we disagree with its implementation guidelines. The plan’s design ignores more than 20 years of widespread ...
