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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 : |
08/06/2022 |
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Actualizado : |
01/12/2022 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
LARZABAL, J.; RODRIGUEZ, M.; YAMANAKA, N.; STEWART, S. |
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Afiliación : |
JHON LARZABAL PÉREZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay./Magíster en Ciencias Agrarias, Facultad de Agronomía, Universidad de La República, Montevideo, Uruguay.; MARCELO JULIAN RODRIGUEZ ALONZO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; NAOKI YAMANAKA, Biological Resources and Post-harvest Division, Japan International Research Center for Agricultural Sciences (JIRCAS), 1-1 Ohwashi, Tsukuba, Ibaraki, 305-8686, Japan.; SILVINA MARIA STEWART SONEIRA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
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Título : |
Pathogenic variability of Asian soybean rust fungus within fields in Uruguay. |
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Fecha de publicación : |
2022 |
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Fuente / Imprenta : |
Tropical Plant Pathology, 2022, Volume 47, Issue 4, Pages 574-582. doi: https://doi.org/10.1007/s40858-022-00511-2 |
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DOI : |
10.1007/s40858-022-00511-2 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 20 January 2022/ Accepted 04 May 2022/ Published 26 May 2022.This study was partly financially supported by the National Institute for Agricultural Research (INIA) and partly by the Japan International Research Center for Agricultural Sciences (JIRCAS) research project ?Development of resilient crops and production technologies. |
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Contenido : |
Abstract:
Asian soybean rust (ASR) caused by Phakopsora pachyrhizi is one of the most threatening diseases in soybean, the most important agricultural crop in Uruguay. Resistance to ASR is conditioned by major genes called Rpps. So far, at least 12 Rpp genes and/or alleles have been identified and mapped to seven loci in the soybean genome. To enhance genetic improvement and reduce yield losses in Uruguay, it is essential to know the pathotypes that interact with Rpp-carrying soybeans, their dynamics and diversity. Five commercial fields were sampled in different regions of the country during two seasons in order to determine the number of pathotypes to which soybeans are locally exposed. Three to 19 single-lesion isolates per field were obtained. Based on the number of uredinia per lesion and the sporulation level, avirulent/virulent phenotype was determined for each isolate by inoculating onto a differential set. Twenty-eight pathotypes were differentiated from a total of 50 isolates, 17 were unique, and 11 were recurrently isolated up to five times. The most frequent pathotype was found in one field only, while several pathotypes were shared among fields. Mayor genes Rpp1-b, Rpp5, and Rpp6 had resistant interactions with many of the isolates, while Rpp1-b and the soybean line with Rpp2, Rpp4, and Rpp5 stacked genes showed resistance to all isolates. In contrast, Rpp1 and Rpp3 showed susceptible reactions to all isolates. Pathogenic variability was higher within fields than among fields; thus, soybean cultivars can be exposed to up to 13 different pathotypes within a single field. This high diversity should be considered when breeding for resistance to this pathogen; thus, pyramiding mayor genes and introducing horizontal resistance should be considered. © 2022, The Author(s), under exclusive license to Sociedade Brasileira de Fitopatologia. MenosAbstract:
Asian soybean rust (ASR) caused by Phakopsora pachyrhizi is one of the most threatening diseases in soybean, the most important agricultural crop in Uruguay. Resistance to ASR is conditioned by major genes called Rpps. So far, at least 12 Rpp genes and/or alleles have been identified and mapped to seven loci in the soybean genome. To enhance genetic improvement and reduce yield losses in Uruguay, it is essential to know the pathotypes that interact with Rpp-carrying soybeans, their dynamics and diversity. Five commercial fields were sampled in different regions of the country during two seasons in order to determine the number of pathotypes to which soybeans are locally exposed. Three to 19 single-lesion isolates per field were obtained. Based on the number of uredinia per lesion and the sporulation level, avirulent/virulent phenotype was determined for each isolate by inoculating onto a differential set. Twenty-eight pathotypes were differentiated from a total of 50 isolates, 17 were unique, and 11 were recurrently isolated up to five times. The most frequent pathotype was found in one field only, while several pathotypes were shared among fields. Mayor genes Rpp1-b, Rpp5, and Rpp6 had resistant interactions with many of the isolates, while Rpp1-b and the soybean line with Rpp2, Rpp4, and Rpp5 stacked genes showed resistance to all isolates. In contrast, Rpp1 and Rpp3 showed susceptible reactions to all isolates. Pathogenic variability was higher within fields tha... Presentar Todo |
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Palabras claves : |
Pathotype; PHAKOPSORA PACHYRHIZI; Urediniospore. |
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Thesagro : |
ENFERMEDADES DE LAS PLANTAS; SOJA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 02980naa a2200241 a 4500
001 1063250
005 2022-12-01
008 2022 bl uuuu u00u1 u #d
024 7 $a10.1007/s40858-022-00511-2$2DOI
100 1 $aLARZABAL, J.
245 $aPathogenic variability of Asian soybean rust fungus within fields in Uruguay.$h[electronic resource]
260 $c2022
500 $aArticle history: Received 20 January 2022/ Accepted 04 May 2022/ Published 26 May 2022.This study was partly financially supported by the National Institute for Agricultural Research (INIA) and partly by the Japan International Research Center for Agricultural Sciences (JIRCAS) research project ?Development of resilient crops and production technologies.
520 $aAbstract: Asian soybean rust (ASR) caused by Phakopsora pachyrhizi is one of the most threatening diseases in soybean, the most important agricultural crop in Uruguay. Resistance to ASR is conditioned by major genes called Rpps. So far, at least 12 Rpp genes and/or alleles have been identified and mapped to seven loci in the soybean genome. To enhance genetic improvement and reduce yield losses in Uruguay, it is essential to know the pathotypes that interact with Rpp-carrying soybeans, their dynamics and diversity. Five commercial fields were sampled in different regions of the country during two seasons in order to determine the number of pathotypes to which soybeans are locally exposed. Three to 19 single-lesion isolates per field were obtained. Based on the number of uredinia per lesion and the sporulation level, avirulent/virulent phenotype was determined for each isolate by inoculating onto a differential set. Twenty-eight pathotypes were differentiated from a total of 50 isolates, 17 were unique, and 11 were recurrently isolated up to five times. The most frequent pathotype was found in one field only, while several pathotypes were shared among fields. Mayor genes Rpp1-b, Rpp5, and Rpp6 had resistant interactions with many of the isolates, while Rpp1-b and the soybean line with Rpp2, Rpp4, and Rpp5 stacked genes showed resistance to all isolates. In contrast, Rpp1 and Rpp3 showed susceptible reactions to all isolates. Pathogenic variability was higher within fields than among fields; thus, soybean cultivars can be exposed to up to 13 different pathotypes within a single field. This high diversity should be considered when breeding for resistance to this pathogen; thus, pyramiding mayor genes and introducing horizontal resistance should be considered. © 2022, The Author(s), under exclusive license to Sociedade Brasileira de Fitopatologia.
650 $aENFERMEDADES DE LAS PLANTAS
650 $aSOJA
653 $aPathotype
653 $aPHAKOPSORA PACHYRHIZI
653 $aUrediniospore
700 1 $aRODRIGUEZ, M.
700 1 $aYAMANAKA, N.
700 1 $aSTEWART, S.
773 $tTropical Plant Pathology, 2022, Volume 47, Issue 4, Pages 574-582. doi: https://doi.org/10.1007/s40858-022-00511-2
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Registro original : |
INIA La Estanzuela (LE) |
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| Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha actual : |
09/07/2024 |
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Actualizado : |
09/07/2024 |
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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 : |
MACHADO, M.; QUEIROZ-MACHADO, C.R.R.; QUEIROZ, F.; GARDNER, D.R.; RIET-CORREA, F. |
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Afiliación : |
MIZAEL MACHADO DA COSTA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ORCID: https://orcid.org/0000-0002-2029-884X; CINTIA R.R. QUEIROZ-MACHADO, Centro Universitario Regional (CENUR) Noreste, Universidad de la República (UdelaR), Tacuarembó, Uruguay; FELIPE QUEIROZ, Independent Research, Araguari, Minas Gerais, Brazil; DALE R. GARDNER, Poisonous Plant Research Laboratory, Agriculture Research Service, United States Department of Agriculture, Logan, USA; FRANKLIN RIET-CORREA AMARAL, Programa de Pós-graduação em Ciência Animal nos Trópicos, Universidade Federal da Bahia (UFBA), Salvador, Bahia, Brazil. |
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Título : |
Hair loss and endocrine dermatosis on horses raised in a Mimosa pudica var. unijuga-invaded area. |
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Complemento del título : |
Short communication. |
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Fecha de publicación : |
2024 |
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Fuente / Imprenta : |
Toxicon, 2024, Volume 247, 107844. https://doi.org/10.1016/j.toxicon.2024.107844 |
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ISSN : |
0041-0101 |
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DOI : |
10.1016/j.toxicon.2024.107844 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received 8 April 2024, Revised 28 June 2024, Accepted 29 June 2024, Available online 1 July 2024, Version of Record 3 July 2024, To be published 28 August 2024. -- Corresponding author. E-mail address: mmachado@inia.org.uy (M. Machado). -- Handling editor: Ray Norton. -- |
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Contenido : |
ABSTRACT.- A Mimosa pudica var. unijuga-associated toxicity affecting horses occurred in Araguari, Triângulo Mineiro, Southeast Brazil. Affected horses had gradual hair loss of the mane and tail and endocrine dermatosis after grazing for three months during the dry season on a paddock invaded by the plant. The main histological lesions include compact ortho-keratotic hyperkeratosis and numerous flame follicles. Toxicological analysis by HPLC-UV demonstrated 0.8 mg/g of mimosine in the leaves. © 2024 Published by Elsevier Ltd. |
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Palabras claves : |
Alopecia; Araguari; Mimosa pudica; Mimosine; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA; Poisonous plants. |
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Asunto categoría : |
L73 Enfermedades de los animales |
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Marc : |
LEADER 01673naa a2200277 a 4500
001 1064731
005 2024-07-09
008 2024 bl uuuu u00u1 u #d
022 $a0041-0101
024 7 $a10.1016/j.toxicon.2024.107844$2DOI
100 1 $aMACHADO, M.
245 $aHair loss and endocrine dermatosis on horses raised in a Mimosa pudica var. unijuga-invaded area.$h[electronic resource]
260 $c2024
500 $aArticle history: Received 8 April 2024, Revised 28 June 2024, Accepted 29 June 2024, Available online 1 July 2024, Version of Record 3 July 2024, To be published 28 August 2024. -- Corresponding author. E-mail address: mmachado@inia.org.uy (M. Machado). -- Handling editor: Ray Norton. --
520 $aABSTRACT.- A Mimosa pudica var. unijuga-associated toxicity affecting horses occurred in Araguari, Triângulo Mineiro, Southeast Brazil. Affected horses had gradual hair loss of the mane and tail and endocrine dermatosis after grazing for three months during the dry season on a paddock invaded by the plant. The main histological lesions include compact ortho-keratotic hyperkeratosis and numerous flame follicles. Toxicological analysis by HPLC-UV demonstrated 0.8 mg/g of mimosine in the leaves. © 2024 Published by Elsevier Ltd.
653 $aAlopecia
653 $aAraguari
653 $aMimosa pudica
653 $aMimosine
653 $aPLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL - INIA
653 $aPoisonous plants
700 1 $aQUEIROZ-MACHADO, C.R.R.
700 1 $aQUEIROZ, F.
700 1 $aGARDNER, D.R.
700 1 $aRIET-CORREA, F.
773 $tToxicon, 2024, Volume 247, 107844. https://doi.org/10.1016/j.toxicon.2024.107844
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