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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha : |
08/09/2014 |
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Actualizado : |
04/10/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
HOFFMAN, E.; VIEGA, L.; GLISON, N.; CASTRO, A.; PEREYRA, S.; PÉREZ, C. |
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Afiliación : |
SILVIA ANTONIA PEREYRA CORREA, INIA La Estanzuela. |
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Título : |
Differential effects of spot blotch on photosynthesis and grain yield in two barley cultivars. |
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Fecha de publicación : |
2014 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, v. 139, n. 3, p. 471-480, 2014. |
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ISSN : |
0929-1873. |
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DOI : |
10.1007/s10658-014-0404-y |
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Idioma : |
Inglés |
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Notas : |
Article history: Accepted: 12 February 2014 /Published online: 27 February 2014. |
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Contenido : |
ABSTRACT.
Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB. |
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Palabras claves : |
COCHLIOBOLUS SATIVUS; HORDEUM; PHOTOSYNTHESIS; RENDIMIENTO EN GRANO; YIELD LOSSES. |
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Thesagro : |
FITOPATOLOGÍA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02358naa a2200289 a 4500
001 1050032
005 2019-10-04
008 2014 bl uuuu u00u1 u #d
022 $a0929-1873.
024 7 $a10.1007/s10658-014-0404-y$2DOI
100 1 $aHOFFMAN, E.
245 $aDifferential effects of spot blotch on photosynthesis and grain yield in two barley cultivars.$h[electronic resource]
260 $c2014
500 $aArticle history: Accepted: 12 February 2014 /Published online: 27 February 2014.
520 $aABSTRACT. Barley spot blotch (SB), caused by Cochliobolus sativus, is an important barley disease which causes extensive grain yield losses. These losses may not always correlate directly with the amount of diseased leaf area. Two barley cultivars, Quebracho (susceptible to SB) and Carumbé (with intermediate susceptibility to SB), were compared in field experiments in 2003, 2004 and 2006. Plots of each cultivar were either inoculated with C. sativus or protected with fungicide under field conditions to generate contrasting treatments: i) diseased, and ii) free of disease, respectively. SB severity over the growing season, photosynthetic rate on leaves with no visible symptoms and grain yield were assessed for each treatment and year. There was no treatment effect on cv. Carumbé, while cv. Quebracho showed a significant yield reduction, even though SB severity during the grain filling period was <10 %. This yield reduction was associated with a reduced photosynthetic rate at the beginning of the grain filling period in cv. Quebracho. A similar experiment was conducted under greenhouse conditions, adding a treatment without inoculum or fungicide. There were no differences in photosynthetic rate or grain yield per plant among treatments. These results suggest a distinct physiological response to SB infection among cultivars affecting leaf photosynthetic rate, and SB severity may not be the best estimator of yield losses caused by SB.
650 $aFITOPATOLOGÍA
653 $aCOCHLIOBOLUS SATIVUS
653 $aHORDEUM
653 $aPHOTOSYNTHESIS
653 $aRENDIMIENTO EN GRANO
653 $aYIELD LOSSES
700 1 $aVIEGA, L.
700 1 $aGLISON, N.
700 1 $aCASTRO, A.
700 1 $aPEREYRA, S.
700 1 $aPÉREZ, C.
773 $tEuropean Journal of Plant Pathology$gv. 139, n. 3, p. 471-480, 2014.
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INIA La Estanzuela (LE) |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
20/01/2022 |
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Actualizado : |
18/03/2022 |
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Autor : |
CLOTHIER, K.A.; WATSON, K.D.; METE, A.; GIANNITTI, F.; ANDERSON, M.; MUNK, B.; MCMILLIN, S.; CLIFFORD, D.L.; RUDD, J.; SHIRKEY, N.; FAMINI, D.; WOODS, L. |
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Afiliación : |
KRISTIN A. CLOTHIER, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; KATHERINE D. WATSON, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; ASLI METE, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; DAN FAMINI, Sonoma County Wildlife Rescue, Petaluma, CA, USA.; LESLIE WOODS, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA. |
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Título : |
Generalized dermatophytosis caused by Trichophyton equinum in 8 juvenile black bears in California. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Journal of Veterinary Diagnostic Investigation, 2022, Volume 34, Issue 2, pp.279-283. doi: https://doi.org/10.1177/10406387211061143 |
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DOI : |
10.1177/10406387211061143 |
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Idioma : |
Inglés |
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Contenido : |
Abstract. From 2014?2019, 8 juvenile black bears (Ursus americanus) from different geographic regions were presented to the California Department of Fish and Wildlife because of emaciation, alopecia, and exfoliative dermatitis that resulted in death or euthanasia. Autopsy and histopathology revealed that all 8 bears had generalized hyperkeratotic dermatitis, folliculitis, and furunculosis. Skin structures were heavily colonized by fungal hyphae and arthrospores; fungal cultures of skin from 7 bears yielded Trichophyton equinum, a zoophilic dermatophyte reported only rarely in non-equid species. Additional skin conditions included mites (5), ticks (2), and coagulase-negative Staphylococcus sp. infections (2). No other causes of morbidity or mortality were identified. Molecular comparisons performed at the University of Texas Fungal Reference Laboratory determined that all isolates produced identical banding patterns, potentially representing a clonal population.
Dermatophytosis is commonly localized and limited to the stratum corneum of the epidermis and hair follicles. Generalized disease with dermal involvement is rare in immunocompetent individuals; illness, malnutrition, age, or immunosuppression may increase susceptibility. Underlying causes for the severe disease impact in these bears were not evident after physical or postmortem examination. The mechanism by which bears from different geographic locations had severe, T. equinum?associated dermatophytosis from a potentially clonal dermatophyte could not be explained and warrants further investigation. MenosAbstract. From 2014?2019, 8 juvenile black bears (Ursus americanus) from different geographic regions were presented to the California Department of Fish and Wildlife because of emaciation, alopecia, and exfoliative dermatitis that resulted in death or euthanasia. Autopsy and histopathology revealed that all 8 bears had generalized hyperkeratotic dermatitis, folliculitis, and furunculosis. Skin structures were heavily colonized by fungal hyphae and arthrospores; fungal cultures of skin from 7 bears yielded Trichophyton equinum, a zoophilic dermatophyte reported only rarely in non-equid species. Additional skin conditions included mites (5), ticks (2), and coagulase-negative Staphylococcus sp. infections (2). No other causes of morbidity or mortality were identified. Molecular comparisons performed at the University of Texas Fungal Reference Laboratory determined that all isolates produced identical banding patterns, potentially representing a clonal population.
Dermatophytosis is commonly localized and limited to the stratum corneum of the epidermis and hair follicles. Generalized disease with dermal involvement is rare in immunocompetent individuals; illness, malnutrition, age, or immunosuppression may increase susceptibility. Underlying causes for the severe disease impact in these bears were not evident after physical or postmortem examination. The mechanism by which bears from different geographic locations had severe, T. equinum?associated dermatophytosis from a potent... Presentar Todo |
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Palabras claves : |
Bears; Dermatophytosis; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL; PLATAFORMA DE SALUD ANIMAL; Trichophyton equinum; Ursus americanus. |
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Asunto categoría : |
-- |
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Marc : |
LEADER 02641naa a2200337 a 4500
001 1062648
005 2022-03-18
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1177/10406387211061143$2DOI
100 1 $aCLOTHIER, K.A.
245 $aGeneralized dermatophytosis caused by Trichophyton equinum in 8 juvenile black bears in California.$h[electronic resource]
260 $c2022
520 $aAbstract. From 2014?2019, 8 juvenile black bears (Ursus americanus) from different geographic regions were presented to the California Department of Fish and Wildlife because of emaciation, alopecia, and exfoliative dermatitis that resulted in death or euthanasia. Autopsy and histopathology revealed that all 8 bears had generalized hyperkeratotic dermatitis, folliculitis, and furunculosis. Skin structures were heavily colonized by fungal hyphae and arthrospores; fungal cultures of skin from 7 bears yielded Trichophyton equinum, a zoophilic dermatophyte reported only rarely in non-equid species. Additional skin conditions included mites (5), ticks (2), and coagulase-negative Staphylococcus sp. infections (2). No other causes of morbidity or mortality were identified. Molecular comparisons performed at the University of Texas Fungal Reference Laboratory determined that all isolates produced identical banding patterns, potentially representing a clonal population. Dermatophytosis is commonly localized and limited to the stratum corneum of the epidermis and hair follicles. Generalized disease with dermal involvement is rare in immunocompetent individuals; illness, malnutrition, age, or immunosuppression may increase susceptibility. Underlying causes for the severe disease impact in these bears were not evident after physical or postmortem examination. The mechanism by which bears from different geographic locations had severe, T. equinum?associated dermatophytosis from a potentially clonal dermatophyte could not be explained and warrants further investigation.
653 $aBears
653 $aDermatophytosis
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL
653 $aPLATAFORMA DE SALUD ANIMAL
653 $aTrichophyton equinum
653 $aUrsus americanus
700 1 $aWATSON, K.D.
700 1 $aMETE, A.
700 1 $aGIANNITTI, F.
700 1 $aANDERSON, M.
700 1 $aMUNK, B.
700 1 $aMCMILLIN, S.
700 1 $aCLIFFORD, D.L.
700 1 $aRUDD, J.
700 1 $aSHIRKEY, N.
700 1 $aFAMINI, D.
700 1 $aWOODS, L.
773 $tJournal of Veterinary Diagnostic Investigation, 2022, Volume 34, Issue 2, pp.279-283. doi: https://doi.org/10.1177/10406387211061143
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