ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Argentina  (3)
  • Calcium salts
  • 2020-2023  (1)
  • 2020-2022  (1)
  • 2010-2014  (2)
  • 1
    Publication Date: 2014-11-05
    Description: Potato cyst nematodes, G. rostochiensis and G. pallida, are the most economically important nematode pests of potatoes worldwide and are subject to strict quarantine regulations in many countries. Globodera ellingtonae was recently described from Oregon (USA), with its host-plant in the field being still unknown. Roots of Andean potatoes from the North of Argentina have been found attacked by this nematode, providing further evidence that this is a potato cyst nematode species, along with G. pallida and G. rostochiensis. New information about morphological, biological and molecular aspects of G. ellingtonae is provided for diagnostic purposes. The Argentine population showed morphological differences from specimens from Oregon; therefore, new diagnostic characters were defined to differentiate G. ellingtonae from its closest species. The Hsp90 gene was shown to be a good diagnostic marker for discriminating the three PCN species. The importance of the detection of G. ellingtonae on potatoes in the Andean region is not restricted to a regional level, since the nematode is also present in USA. This species can pose a serious problem to potato crop, especially when infected tubers are used as seeds. The distribution in the South American Andes is likely to extend the currently known distribution areas because cysts are passively transported. There is a need to evaluate the possible damage it may cause to potato crops. Morphological and molecular diagnoses conducted in this work provide fundamental information for the protection of potato crops not only in those countries in the Americas where the species has already been detected, but also worldwide.
    Keywords: Andean potato ; Argentina ; diagnosis ; Hsp90 gene ; morphology ; potato cyst nematode ; 42.76 ; 42.64
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    facet.materialart.
    Unknown
    In:  http://aquaticcommons.org/id/eprint/16697 | 9602 | 2016-05-04 14:28:48 | 16697 | Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Mar del Plata, Argentina
    Publication Date: 2021-07-08
    Description: La glaciaciones ocurridas en la región expusieron en diferente grado la actual plataforma continental Argentina (océano Atlántico sudoccidental). Este trabajo de divulgación científica da a conocer un modelo de evolución paleogeográfica de las costas de la Pampa y la Patagonia, y brinda la posibilidad de localizar temporalmente la formación de los principales rasgos costeros del extremo sur de América del sur. Se incluyen además otras lecturas sugeridas relacionadas al tema.
    Description: Reprinted as: pp.11-17 in, Ciencia del Mar. Volumen temático 1, 12/2014; Asociación Ciencia Hoy. ISBN: 978-987-45584-0-4 (Special issue dedicated to 'Marine Sciences: 1988-2014')
    Keywords: Biology ; Ecology ; Oceanography ; PSW ; Argentina ; marine environment ; Continental shelves ; shelf geology ; glaciation ; palaeogeography ; sea level changes ; models
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 50-56
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2022-08-08
    Description: La acumulación de los descartes o conchas de ostiones tiene un impacto ambiental negativo debido a su lenta degradación, y se ha demostrado la potencialidad de estos residuos para la obtención de sales de calcio. En este trabajo se establecieron las mejores condiciones de operación para obtener lactato y citrato de calcio a escala de laboratorio, a partir de la harina de conchas de ostión de mangle mediante lixiviación con HCl, formación de las sales con ácidos orgánicos (láctico y cítrico), utilizando como agente precipitante NaOH. Se evaluó la influencia de cuatro factores: tipo de ácido (láctico y cítrico), concentración de HCl (3,5 % y 7 % v/v), relación solvente: sólido (7:1 y 10:1 mL/g) y velocidad de agitación (150 y 200 min-1) sobre la masa de sal y el rendimiento (referido a la masa de harina, de CaCO3 y la cantidad de sal teórica a obtener), para un diseño experimental 24 con réplica en todos los puntos. El análisis de composición de la harina arrojó el mayor porcentaje para el CaCO3 (89,60 %). El diseño experimental demostró que las únicas variables estadísticamente significativas con 95 % de confianza fueron la concentración de HCl y la relación solvente:sólido para ambas sales. Las mejores condiciones de operación resultaron la concentración de HCl de 7 %, la relación de 10:1 mL/g a 150 min-1.
    Description: The accumulation of discarded or oyster shells has a negative environmental impact due to its slow degradation, and the potential of these residues to obtain calcium salts has been demonstrated. In this work, the best operating conditions were established to obtain calcium lactate and citrate on a laboratory scale, from mangrove oyster shell meal by leaching with HCl, formation of salts with organic acids (lactic and citric). using NaOH as precipitating agent. The influence of four factors was evaluated: type of acid (lactic and citric), concentration of HCl (3,5 % and 7 % v/v), solvent:solid ratio (7:1 and 10:1 mL/g) and stirring speed (150 and 200 min-1) on the mass of salt and the yield (referred to the mass of flour, of CaCO3 and the amount of theoretical salt to be obtained), for an experimental design 24 with replication at all points . The flour composition analysis showed the highest percentage for CaCO3 (89,60 %). The experimental design showed that the only statistically significant variables with 95 % confidence were the concentration of HCl and the solvent:solid ratio for both salts. The best operating conditions were the HCl concentration of 7 %, the ratio of 10:1 mL/g at 150 min-1.
    Description: Published
    Description: Refereed
    Keywords: Conchas de ostiones ; Lixiviación ; Precipitación ; Sales de calcio ; Oyster shells ; Leaching ; Precipitation ; Calcium salts
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.7-15
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2024-01-12
    Description: Potato cyst nematodes, G. rostochiensis and G. pallida, are the most economically important nematode pests of potatoes worldwide and are subject to strict quarantine regulations in many countries. Globodera ellingtonae was recently described from Oregon (USA), with its host-plant in the field being still unknown. Roots of Andean potatoes from the North of Argentina have been found attacked by this nematode, providing further evidence that this is a potato cyst nematode species, along with G. pallida and G. rostochiensis. New information about morphological, biological and molecular aspects of G. ellingtonae is provided for diagnostic purposes. The Argentine population showed morphological differences from specimens from Oregon; therefore, new diagnostic characters were defined to differentiate G. ellingtonae from its closest species. The Hsp90 gene was shown to be a good diagnostic marker for discriminating the three PCN species. The importance of the detection of G. ellingtonae on potatoes in the Andean region is not restricted to a regional level, since the nematode is also present in USA. This species can pose a serious problem to potato crop, especially when infected tubers are used as seeds. The distribution in the South American Andes is likely to extend the currently known distribution areas because cysts are passively transported. There is a need to evaluate the possible damage it may cause to potato crops. Morphological and molecular diagnoses conducted in this work provide fundamental information for the protection of potato crops not only in those countries in the Americas where the species has already been detected, but also worldwide.
    Keywords: Andean potato ; Argentina ; diagnosis ; Hsp90 gene ; morphology ; potato cyst nematode
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...