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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
12/12/2016 |
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Actualizado : |
12/12/2016 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
MITTON, G. A.; QUINTANA, S.; GIMÉNEZ MARTÍNEZ, P.; MENDOZA, Y.; RAMALLO, G.; BRASESCO, C.; VILLALBA, A.; EGUARAS, M. J.; MAGGI, M. D.; RUFFINENGO, S. R. |
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Afiliación : |
GIULIA A. MITTON, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Bs.As., Argentina; SILVINA QUINTANA, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; Fares Taie Instituto de Ana´lisis, Mar del Plata, Argentina; PABLO GIMÉNEZ MARTÍNEZ, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; Agencia Nacional de Promoción Científica y Tecnológica, Bs.As, Argentina; YAMANDU MENDOZA SPINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GUSTAVO NOEL RAMALLO MEDINA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CONSTANZA BRASESCO, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Bs.As., Argentina; AGUSTINA VILLALBA, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; MARTÍN J. EGUARAS, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Bs.As., Argentina; MATÍAS D. MAGGI, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; CONICET, Consejo Nacional de Investigaciones Científicas y Técnicas, Bs.As., Argentina; SERGIO R. RUFFINENGO, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina; Universidad Nacional de Mar del Plata (UNMdP), Balcarce, Argentina. |
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Título : |
First record of resistance to flumethrin in a varroa population from Uruguay. [Primer registro de resistencia a flumetrina en una población de Varroa destructor en Uruguay] |
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Fecha de publicación : |
2016 |
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Fuente / Imprenta : |
Journal of Apicultural Research, 2016, Pages 1-6 |
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DOI : |
10.1080/00218839.2016.1257238 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Varroa destructor is the most serious parasitic mite that infests the honey bee Apis mellifera. Different treatments with systemic acaricides are applied to control, but due to the intensive use of these chemicals, resistance to organophosphates and pyrethroids has developed worldwide. Most of the resistance episodes have been registered for fluvalinate, and only in a few cases has flumethrin resistance been reported. In Uruguay, no studies on V. destructor resistance to flumethrin have yet been recorded. High infestation levels of V. destructor are continuously detected in colonies of A. mellifera after treatments with flumethrin. Hence, this study aimed to estimate the possible resistance to flumethrin of a V. destructor population from the Colonia Department. Furthermore, the LC50 baseline levels for flumethrin in two Uruguayan populations were determinated. The LC50 for flumethrin for the population from Colonia Department was 3.8 μg/Petri dish, which means an increase of 34.5 fold when compared to the corresponding baseline, suggesting the development of resistance. These results are the first report of resistance to flumethrin in V. destructor in Uruguay, and extend the knowledge of acaricide resistance in the country.
© 2016 National Scientific and Technical Research Council (CONICET) |
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Palabras claves : |
BIOASSAY; FLUMETHRIN; RESISTANCE. |
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Thesagro : |
APICULTURA; APIS MELLIFERA; URUGUAY; VARROA DESTRUCTOR. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02321naa a2200325 a 4500
001 1056253
005 2016-12-12
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1080/00218839.2016.1257238$2DOI
100 1 $aMITTON, G. A.
245 $aFirst record of resistance to flumethrin in a varroa population from Uruguay. [Primer registro de resistencia a flumetrina en una población de Varroa destructor en Uruguay]$h[electronic resource]
260 $c2016
520 $aABSTRACT. Varroa destructor is the most serious parasitic mite that infests the honey bee Apis mellifera. Different treatments with systemic acaricides are applied to control, but due to the intensive use of these chemicals, resistance to organophosphates and pyrethroids has developed worldwide. Most of the resistance episodes have been registered for fluvalinate, and only in a few cases has flumethrin resistance been reported. In Uruguay, no studies on V. destructor resistance to flumethrin have yet been recorded. High infestation levels of V. destructor are continuously detected in colonies of A. mellifera after treatments with flumethrin. Hence, this study aimed to estimate the possible resistance to flumethrin of a V. destructor population from the Colonia Department. Furthermore, the LC50 baseline levels for flumethrin in two Uruguayan populations were determinated. The LC50 for flumethrin for the population from Colonia Department was 3.8 μg/Petri dish, which means an increase of 34.5 fold when compared to the corresponding baseline, suggesting the development of resistance. These results are the first report of resistance to flumethrin in V. destructor in Uruguay, and extend the knowledge of acaricide resistance in the country. © 2016 National Scientific and Technical Research Council (CONICET)
650 $aAPICULTURA
650 $aAPIS MELLIFERA
650 $aURUGUAY
650 $aVARROA DESTRUCTOR
653 $aBIOASSAY
653 $aFLUMETHRIN
653 $aRESISTANCE
700 1 $aQUINTANA, S.
700 1 $aGIMÉNEZ MARTÍNEZ, P.
700 1 $aMENDOZA, Y.
700 1 $aRAMALLO, G.
700 1 $aBRASESCO, C.
700 1 $aVILLALBA, A.
700 1 $aEGUARAS, M. J.
700 1 $aMAGGI, M. D.
700 1 $aRUFFINENGO, S. R.
773 $tJournal of Apicultural Research, 2016, Pages 1-6
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
30/11/2020 |
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Actualizado : |
05/09/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
CIBILS-STEWART, X.; POWELL, J.R.; POPAY, A.J.; LATTANZI, F.; HARTLEY, S.E.; JOHNSON, S.N. |
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Afiliación : |
XIMENA CIBILS-STEWART, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./AgResearch, Ruakura Research Centre, Hamilton, New Zealand.; JEFF R. POWELL, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia.; ALISON JEAN POPAY, AgResearch, Ruakura Research Centre, Hamilton, New Zealand.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SUE ELAINE HARTLEY, Department of Animal and Plant Sciences, The University of Sheffield, Sheffield, United Kingdom.; SCOTT NICHOLAS JOHNSON, Hawkesbury Institute for the Environment, Western Sydney University, Penrith, NSW, Australia. |
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Título : |
Reciprocal effects of silicon supply and endophytes on silicon accumulation and Epichloë colonization in grasses. |
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Fecha de publicación : |
2020 |
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Fuente / Imprenta : |
Frontiers in Plant Science, 27 October 2020, Volume 11, Article number 593198. Open Access. Doi: https://doi.org/10.3389/fpls.2020.593198 |
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DOI : |
10.3389/fpls.2020.593198 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: 10 August 2020/ Accepted: 07 October 2020/ Published: 27 October 2020. |
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Contenido : |
Abstract: Cool season grasses associate asymptomatically with foliar Epichloë endophytic fungi in a symbiosis where Epichloë spp. protects the plant from a number of biotic and abiotic stresses. Furthermore, many grass species can accumulate large quantities of silicon (Si), which also alleviates a similar range of stresses. While Epichloë endophytes may improve uptake of minerals and nutrients, their impact on Si is largely unknown. Likewise, the effect of Si availability on Epichloë colonization remains untested. To assess the bidirectional relationship, we grew tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) hydroponically with or without Si. Grasses were associated with five different Epichloë endophyte strains [tall fescue: AR584 or wild type (WT); perennial ryegrass: AR37, AR1, or WT] or as Epichloë-free controls. Reciprocally beneficial effects were observed for tall fescue associations. Specifically, Epichloë presence increased Si concentration in the foliage of tall fescue by at least 31%, regardless of endophyte strain. In perennial ryegrass, an increase in foliar Si was observed only for plants associated with the AR37. Epichloë promotion of Si was (i) independent of responses in plant growth, and (ii) positively correlated with endophyte colonization, which lends support to an endophyte effect independent of their impacts on root growth. Moreover, Epichloë colonization in tall fescue increased by more than 60% in the presence of silicon; however, this was not observed in perennial ryegrass. The reciprocal benefits of Epichloë-endophytes and foliar Si accumulation reported here, especially for tall fescue, might further increase grass tolerance to stress. MenosAbstract: Cool season grasses associate asymptomatically with foliar Epichloë endophytic fungi in a symbiosis where Epichloë spp. protects the plant from a number of biotic and abiotic stresses. Furthermore, many grass species can accumulate large quantities of silicon (Si), which also alleviates a similar range of stresses. While Epichloë endophytes may improve uptake of minerals and nutrients, their impact on Si is largely unknown. Likewise, the effect of Si availability on Epichloë colonization remains untested. To assess the bidirectional relationship, we grew tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) hydroponically with or without Si. Grasses were associated with five different Epichloë endophyte strains [tall fescue: AR584 or wild type (WT); perennial ryegrass: AR37, AR1, or WT] or as Epichloë-free controls. Reciprocally beneficial effects were observed for tall fescue associations. Specifically, Epichloë presence increased Si concentration in the foliage of tall fescue by at least 31%, regardless of endophyte strain. In perennial ryegrass, an increase in foliar Si was observed only for plants associated with the AR37. Epichloë promotion of Si was (i) independent of responses in plant growth, and (ii) positively correlated with endophyte colonization, which lends support to an endophyte effect independent of their impacts on root growth. Moreover, Epichloë colonization in tall fescue increased by more than 60% in the presence of silicon;... Presentar Todo |
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Palabras claves : |
COOL SEASON GRASSES; EPICHLOË; FESTUCA ARUNDINACEA S; HYDROPONICS; LOLIUM PERENNE L; PERENNIAL RYEGRASS; SILICA; TALL FESCUE. |
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Asunto categoría : |
-- |
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URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/15488/1/fpls-11-593198.Cibils-Stewart.pdf
https://www.frontiersin.org/articles/10.3389/fpls.2020.593198/full
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Marc : |
LEADER 02786naa a2200301 a 4500
001 1061529
005 2022-09-05
008 2020 bl uuuu u00u1 u #d
024 7 $a10.3389/fpls.2020.593198$2DOI
100 1 $aCIBILS-STEWART, X.
245 $aReciprocal effects of silicon supply and endophytes on silicon accumulation and Epichloë colonization in grasses.$h[electronic resource]
260 $c2020
500 $aArticle history: Received: 10 August 2020/ Accepted: 07 October 2020/ Published: 27 October 2020.
520 $aAbstract: Cool season grasses associate asymptomatically with foliar Epichloë endophytic fungi in a symbiosis where Epichloë spp. protects the plant from a number of biotic and abiotic stresses. Furthermore, many grass species can accumulate large quantities of silicon (Si), which also alleviates a similar range of stresses. While Epichloë endophytes may improve uptake of minerals and nutrients, their impact on Si is largely unknown. Likewise, the effect of Si availability on Epichloë colonization remains untested. To assess the bidirectional relationship, we grew tall fescue (Festuca arundinacea) and perennial ryegrass (Lolium perenne) hydroponically with or without Si. Grasses were associated with five different Epichloë endophyte strains [tall fescue: AR584 or wild type (WT); perennial ryegrass: AR37, AR1, or WT] or as Epichloë-free controls. Reciprocally beneficial effects were observed for tall fescue associations. Specifically, Epichloë presence increased Si concentration in the foliage of tall fescue by at least 31%, regardless of endophyte strain. In perennial ryegrass, an increase in foliar Si was observed only for plants associated with the AR37. Epichloë promotion of Si was (i) independent of responses in plant growth, and (ii) positively correlated with endophyte colonization, which lends support to an endophyte effect independent of their impacts on root growth. Moreover, Epichloë colonization in tall fescue increased by more than 60% in the presence of silicon; however, this was not observed in perennial ryegrass. The reciprocal benefits of Epichloë-endophytes and foliar Si accumulation reported here, especially for tall fescue, might further increase grass tolerance to stress.
653 $aCOOL SEASON GRASSES
653 $aEPICHLOË
653 $aFESTUCA ARUNDINACEA S
653 $aHYDROPONICS
653 $aLOLIUM PERENNE L
653 $aPERENNIAL RYEGRASS
653 $aSILICA
653 $aTALL FESCUE
700 1 $aPOWELL, J.R.
700 1 $aPOPAY, A.J.
700 1 $aLATTANZI, F.
700 1 $aHARTLEY, S.E.
700 1 $aJOHNSON, S.N.
773 $tFrontiers in Plant Science, 27 October 2020, Volume 11, Article number 593198. Open Access. Doi: https://doi.org/10.3389/fpls.2020.593198
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