Artículos de revista: Envíos recientes
Mostrando ítems 521-540 de 541
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Description of ‘Candidatus Phytoplasma meliae’, a phytoplasma associated with Chinaberry (Melia azedarach L.) yellowing in South America
(Microbiology Society, 2016)China tree yellows (ChTY) phytoplasma is associated with the yellowing disease of the China tree (Melia azedarach) in Argentina. According to partial 16S rRNA gene analysis, ChTY phytoplasma belongs to the 16Sr XIII group, ... -
Producción de biomasa de brachiaria (brachiaria brizantha) cv. marandú en dos sistemas silvopastoriles de pino (pinus elliottii) en Corrientes, Argentina
(Universidad de Concepción, 2017)Los sistemas silvopastoriles comienzan a cobrar importancia en la región del noreste argentino (NEA), en particular en los bosques implantados a fines de la década de 1990 e inicios del año 2000. El objetivo del presente ... -
Efecto de la fertilización nitrogenada y la edad del rebrote sobre el valor nutritivo de Brachiaria brizantha cv. "Marandú"
(Universidad Nacional de Cuyo, 2017)Se evaluó en Brachiaria brizantha cv Marandú, el valor nutritivo en función de la edad del rebrote (28, 56, 84 y 112 días) y fertilización (F1, F2, F3, F4 y F5). Se determinó proteína bruta (PB), fibra detergente neutro ... -
Analysis of nifH-RNA reveals phylotypes related to Geobacter and Cyanobacteria as important functional components of the N2-fixing community depending on depth and agricultural use of soil
(Blackwell Publishing, 2017-05)In this survey, a total of 80 787 reads and 28 171 unique NifH protein sequences were retrieved from soil RNA. This dataset extends our knowledge about the structure and diversity of the functional diazotrophic communities ... -
Diversity of endophytic fungal and bacterial communities in Ilex paraguariensis grown under field conditions
(Springer, 2016-02-29)The composition and diversity of the endophytic community associated with yerba mate (Ilex paraguariensis) was investigated using culture-depending methods. Fungi were identified based on their micromorphological characteristics ... -
Cultivo de mandioca (manihot esculenta crantz) en invernadero : efectos sobre el rendimiento y la calidad de raíces tuberosas
(Asociación Interciencia, 2017)Dada la fuerte interacción entre la temperatura ambiente y el rendimiento de raíces tuberosas (RT) de mandioca, en regiones subtropicales el cultivo bajo invernadero puede ser una tecnolo-gía de producción a considerar ... -
Modelagem do status de degradação em campos nativos alagáveis (malezales) no nordeste de Corrientes, Argentina
(Universidad Federal de Río de Janeiro, 2020)Os “malezales” são campos naturais alagados localizados em planícies do nordeste da Argentina. Muitos malezales se desenvolvem sobre Inceptisols (USDA Soil Taxonomy) com horizontes pouco desenvolvidos e frequentemente saturados ... -
Supraoptimal ethylene acts antagonistically with exogenous gibberellins during Solanum lycopersicum (Solanaceae) hypocotyl growth
(Sociedad argentina de botánica, 2016)In many plant species, ethylene and gibberellins interact to regulate plant growth and development. In some cases, these hormones can act in a synergistic way whereas in others they can be antagonistic. To date, the control ... -
Determinación de la eficiencia de la micropropagación de genotipos de mandioca (Manihot esculenta, Euphorbiaceae) de interés para el nordeste argentino
(Sociedad argentina de botánica, 2017-09)En la bibliografía se citan numerosos trabajos de propagación in vitro de mandioca, sin embargo sólo se ha establecido la eficiencia de la multiplicación para un número muy restringido de cultivares y/o subcultivos durante ... -
Tolerance to desiccation and cryopreservation of seeds of seven south american llex species
(American society for horticultural science, 2018-06)This research aimed at evaluating the desiccation tolerance and ability to withstand cryostorage of intact seeds of seven South American Ilex species, and comparing different methodologies for in vitro germination of fresh ... -
In vitro plant regeneration and cryopreservation of Arachis glabrata (Fabaceae) using leaflet explants
(Springer, 2017-12)Arachis glabrata Benth (perennial peanut) is a rhizomatous legume with high forage value and great potential for soil conservation as well as it displays valuable plant genetic resources for the cultivated edible peanut ... -
Rapid formation of adventitious roots and partial ethylene sensitivityresult in faster adaptation to flooding in the aerial roots (aer) mutantof tomato
(Elsevier, 2016-03-20)The frequency of extreme events such as droughts and floods has increased as a consequence of climatechange. Many crops have not been improved to tolerate soil anoxia and, therefore, floods cause importanteconomic losses. ... -
Storage of cohniella cepula (Orchidaceae) Pollinia : fertilizing ability and subsequent fruit and seed formation
(American Society for Horticultural Science, 2016-10)Pollen storage is of great importance for plant breeding and production besides an efficient means for preservation of haploid gene pool of plant genetic resources and rare or endangered species. Pollinia of Cohniella ... -
Sowing pyrenes under aseptic conditions enhances seed germination of Ilex brasi liensis, I. pseudoboxus and I. theezans (Aquifoliaceae)
(Seed testing. Association International, 2015-02)Seeds of Ilex species are individually enclosed by a woody endocarp, forming a dispersal unit termed a pyrene. Embryos are undeveloped when fruits reach maturity. As a consequence, germination is low even after several months ... -
Assessment of reference genes for real-time quantitative PCR normalization in Ilex paraguariensis leaves during drought
(Springer, 2018)Reverse transcription of RNA followed by real-time quantitative PCR (qPCR) is to date the most reliable method for gene expression studies. However, to control the errors introduced along the numerous experimental procedures, ... -
Transcript and metabolic adjustments triggered by drought in Ilex paraguariensis leaves
(Springer Nature, 2019-05)Ilex paraguariensis (yerba mate) is cultivated in the subtropical region of South America, where the occurrence of drought episodes limit yield. To explore the mechanisms that allow I. paraguariensis to overcome dehydration, ... -
Overexpression of the arginine decarboxylase gene improves tolerance to salt stress in lotus tenuis plants
(Springer Science, 2017-05-12)To analyse the putative effects of putrescine on the plant response to salinity, micropropagated Lotus tenuis plants from wild-type and transgenic lines harbouring the pRD29A: oat arginine decarboxylase (ADC, EC ... -
Cryopreservation of Arachis Pintoi (leguminosae) Somatic Embryos
(CryoLetters, 2013-01-06)In this study, we successfully cryopreserved cotyledonary somatic embryos of diploid and triploid Arachis pintoi cytotypes using the encapsulation-dehydration technique. The highest survival rates were obtained when somatic ... -
Alteraciones de los bosques nativos en el norte argentino: normativas y mecanismos de compensación por servicios ambientales
(Universidad Nacional de Costa Rica, 2018-01)Los recursos naturales conforman los insumos de cualquier actividad económica desarrollada por el ser humano, pero es una realidad que la mayoría de los ecosistemas forestales nativos de Argentina presentan serias alteraciones ... -
Perfil mineral en los pastizales de andropogon lateralis y sorghastrum setosum (gramineae) en Corrientes, Argentina
(Universidad Nacional de Cuyo. Facultad de Ciencias Agrarias, 2017)El objetivo de este trabajo fue determinar la composición florística y el aporte de minerales a la dieta animal para la producción de carne bovina de los pastizales de Andropogon lateralis Nees (PAL) ...
