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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
Fecha : |
21/02/2014 |
Actualizado : |
24/06/2021 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Nacionales |
Autor : |
PÉREZ, C.A.; ALTIER, N.; SIMETO, S.; WINGFIELD, M.J.; SLIPPERS, B.; BLANCHETTE, R.A. |
Afiliación : |
C.A. PÉREZ, Department of Plan Pathology. University of Minnesota. Universidad de la República / FAGRO-Estación Experimental "Dr. Mario A. Cassinoni" (EEMAC).; NORA ADRIANA ALTIER MANZINI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SOFIA SIMETO FERRARI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; M.J. WINGFIELD, Forestry and Agricultural Biotechnology Institute. University of Pretoria, Pretoria, South Africa.; B. SLIPPERS, University of Pretoria, Pretoria, south Africa. |
Título : |
Botryosphaeriaceae aisladas de Eucalyptus y Mirtáceas nativas en Uruguay. (Botryosphaeriaceae from Eucalyptus and Native Myrtaceae in Uruguay). |
Fecha de publicación : |
2008 |
Fuente / Imprenta : |
Agrociencia, 2008, v. 12, no. 2, p. 19-30. |
ISSN : |
1510-0839 |
Idioma : |
Inglés |
Contenido : |
Varias species residentes en la familia Botryosphaeriaceae son importantes patógenos causantes de cancros y «dieback» en numerosas plantas leñosas. En Uruguay, cancros del fuste observados en plantaciones de Eucalyptus globulus han estado asociados a Neofusicoccum eucalyptorum (=Botryosphaeria eucalyptorum), N. ribis (=B. ribis) y B. dothidea. Estos hongos también habitan como endófitos en hojas, ramas y fustes asintomáticos de Eucalyptus volviéndose patógenos luego de la ocurrencia de algún estrés. Existen evidencias que sugieren que otras especies de Botryosphaeriaceae, además de las antes mencionadas podrían causar cancros en Eucalyptus spp. y mirtáceas nativas en Uruguay. En este estudio, identificamos las especies Botryosphaeriaceae presentes en Eucalyptus spp. y en mirtáceas nativas, y analizamos la diversidad genética entre los aislamientos aislados de ambos grupos de hospederos. Muestras de material vegetal de Eucalyptus spp. y mirtáceas nativas con y sin síntomas fueron colectadas desde diversos puntos del país. Los cultivos fúngicos monospóricos obtenidos de dichas muestras, fueron identificados en
base a la morfología de conídios y a técnicas moleculares mediante comparación de secuencias de ADN correspondientes a la región ITS del ADN ribosomal. Los resultados muestran que aislamientos identificados dentro del complejo N. parvum-N. ribis, y otros identificados como B. dothidea fueron aislados de ambos hospederos, Eucalyptus spp. y mirtáceas nativas. Por el contrario, N. eucalyptorum fue aislado únicamente de Eucalyptus spp., mientras que aislamientos de una especie relacionada a Diplodia seriata (=B. obtusa) fueron obtenidos únicamente de árboles nativos. Este estudio permite expandir los conocimientos acerca de las especies Botryosphaeriaceae presentes en mirtáceas nativas e introducidas en Uruguay. //Species of the Botryosphaeriaceae are important pathogens causing cankers and die-back on many woody plants. In Uruguay, Neofusicoccum eucalyptorum (=Botryosphaeria eucalyptorum), N. ribis (=B. ribis) and B. dothidea have previously been associated with stem cankers on plantation grown Eucalyptus globulus. These fungi also exist as endophytes in healthy Eucalyptus leaves, twigs and stems, typically causing disease after the onset of stress. There is good evidence to suggest that species of the Botryosphaeriaceae, other than those previously reported, could cause cankers on Eucalyptus spp. and native Myrtaceae trees in Uruguay. In this study, we identified the Botryosphaeriaceae present on Eucalyptus spp. and on native Myrtaceae trees, and considered the genetic diversity between isolates found on both groups of hosts. Symptomatic and asymptomatic material was collected countrywide from Eucalyptus spp. and native Myrtaceae. Monosporic cultures were identified based on conidial morphology and comparisons of DNA sequences for the ITS region of the rDNA operon. Results revealed that isolates of the N. parvum-N. ribis complex, and B. dothidea were present on both Eucalyptus spp. and native Myrtaceae. In contrast, N. eucalyptorum was found only on Eucalyptus spp. and Diplodia seriata-related (=B. obtusa) isolates were obtained only from native trees. This study expands the knowledge of the occurrence of Botryosphaeriaceae on native and introduced Myrtaceae in Uruguay. MenosVarias species residentes en la familia Botryosphaeriaceae son importantes patógenos causantes de cancros y «dieback» en numerosas plantas leñosas. En Uruguay, cancros del fuste observados en plantaciones de Eucalyptus globulus han estado asociados a Neofusicoccum eucalyptorum (=Botryosphaeria eucalyptorum), N. ribis (=B. ribis) y B. dothidea. Estos hongos también habitan como endófitos en hojas, ramas y fustes asintomáticos de Eucalyptus volviéndose patógenos luego de la ocurrencia de algún estrés. Existen evidencias que sugieren que otras especies de Botryosphaeriaceae, además de las antes mencionadas podrían causar cancros en Eucalyptus spp. y mirtáceas nativas en Uruguay. En este estudio, identificamos las especies Botryosphaeriaceae presentes en Eucalyptus spp. y en mirtáceas nativas, y analizamos la diversidad genética entre los aislamientos aislados de ambos grupos de hospederos. Muestras de material vegetal de Eucalyptus spp. y mirtáceas nativas con y sin síntomas fueron colectadas desde diversos puntos del país. Los cultivos fúngicos monospóricos obtenidos de dichas muestras, fueron identificados en
base a la morfología de conídios y a técnicas moleculares mediante comparación de secuencias de ADN correspondientes a la región ITS del ADN ribosomal. Los resultados muestran que aislamientos identificados dentro del complejo N. parvum-N. ribis, y otros identificados como B. dothidea fueron aislados de ambos hospederos, Eucalyptus spp. y mirtáceas nativas. Por el contra... Presentar Todo |
Palabras claves : |
BOTRYOSPHAERIA CANKER. |
Thesagro : |
BOTRYOSPHAERIA; EUCALYPTUS; MYRTACEAE; URUGUAY. |
Asunto categoría : |
H20 Enfermedades de las plantas |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/6653/1/Agrociencia.pdf
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Marc : |
LEADER 04092naa a2200253 a 4500 001 1027641 005 2021-06-24 008 2008 bl uuuu u00u1 u #d 022 $a1510-0839 100 1 $aPÉREZ, C.A. 245 $aBotryosphaeriaceae aisladas de Eucalyptus y Mirtáceas nativas en Uruguay. (Botryosphaeriaceae from Eucalyptus and Native Myrtaceae in Uruguay). 260 $c2008 520 $aVarias species residentes en la familia Botryosphaeriaceae son importantes patógenos causantes de cancros y «dieback» en numerosas plantas leñosas. En Uruguay, cancros del fuste observados en plantaciones de Eucalyptus globulus han estado asociados a Neofusicoccum eucalyptorum (=Botryosphaeria eucalyptorum), N. ribis (=B. ribis) y B. dothidea. Estos hongos también habitan como endófitos en hojas, ramas y fustes asintomáticos de Eucalyptus volviéndose patógenos luego de la ocurrencia de algún estrés. Existen evidencias que sugieren que otras especies de Botryosphaeriaceae, además de las antes mencionadas podrían causar cancros en Eucalyptus spp. y mirtáceas nativas en Uruguay. En este estudio, identificamos las especies Botryosphaeriaceae presentes en Eucalyptus spp. y en mirtáceas nativas, y analizamos la diversidad genética entre los aislamientos aislados de ambos grupos de hospederos. Muestras de material vegetal de Eucalyptus spp. y mirtáceas nativas con y sin síntomas fueron colectadas desde diversos puntos del país. Los cultivos fúngicos monospóricos obtenidos de dichas muestras, fueron identificados en base a la morfología de conídios y a técnicas moleculares mediante comparación de secuencias de ADN correspondientes a la región ITS del ADN ribosomal. Los resultados muestran que aislamientos identificados dentro del complejo N. parvum-N. ribis, y otros identificados como B. dothidea fueron aislados de ambos hospederos, Eucalyptus spp. y mirtáceas nativas. Por el contrario, N. eucalyptorum fue aislado únicamente de Eucalyptus spp., mientras que aislamientos de una especie relacionada a Diplodia seriata (=B. obtusa) fueron obtenidos únicamente de árboles nativos. Este estudio permite expandir los conocimientos acerca de las especies Botryosphaeriaceae presentes en mirtáceas nativas e introducidas en Uruguay. //Species of the Botryosphaeriaceae are important pathogens causing cankers and die-back on many woody plants. In Uruguay, Neofusicoccum eucalyptorum (=Botryosphaeria eucalyptorum), N. ribis (=B. ribis) and B. dothidea have previously been associated with stem cankers on plantation grown Eucalyptus globulus. These fungi also exist as endophytes in healthy Eucalyptus leaves, twigs and stems, typically causing disease after the onset of stress. There is good evidence to suggest that species of the Botryosphaeriaceae, other than those previously reported, could cause cankers on Eucalyptus spp. and native Myrtaceae trees in Uruguay. In this study, we identified the Botryosphaeriaceae present on Eucalyptus spp. and on native Myrtaceae trees, and considered the genetic diversity between isolates found on both groups of hosts. Symptomatic and asymptomatic material was collected countrywide from Eucalyptus spp. and native Myrtaceae. Monosporic cultures were identified based on conidial morphology and comparisons of DNA sequences for the ITS region of the rDNA operon. Results revealed that isolates of the N. parvum-N. ribis complex, and B. dothidea were present on both Eucalyptus spp. and native Myrtaceae. In contrast, N. eucalyptorum was found only on Eucalyptus spp. and Diplodia seriata-related (=B. obtusa) isolates were obtained only from native trees. This study expands the knowledge of the occurrence of Botryosphaeriaceae on native and introduced Myrtaceae in Uruguay. 650 $aBOTRYOSPHAERIA 650 $aEUCALYPTUS 650 $aMYRTACEAE 650 $aURUGUAY 653 $aBOTRYOSPHAERIA CANKER 700 1 $aALTIER, N. 700 1 $aSIMETO, S. 700 1 $aWINGFIELD, M.J. 700 1 $aSLIPPERS, B. 700 1 $aBLANCHETTE, R.A. 773 $tAgrociencia, 2008$gv. 12, no. 2, p. 19-30.
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INIA Tacuarembó (TBO) |
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Registro completo
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Biblioteca (s) : |
INIA Treinta y Tres. |
Fecha actual : |
14/01/2022 |
Actualizado : |
14/01/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
Internacional - -- |
Autor : |
NÚÑEZ OLIVERA, R.; BÓ, G.A.; MENCHACA, A. |
Afiliación : |
R. NÚÑEZ OLIVERA, Instituto de Reproducción Animal Uruguay, Fundación IRAUy, Montevideo.; G.A. BÓ, Instituto de Reproducción Animal Córdoba (IRAC), Córdoba, Argentina. // Instituto A.P. de Ciencias Básicas y Aplicadas, Medicina Veterinaria, Universidad Nacional de Villa María. Córdoba, Argentina.; JOSE ALEJO MENCHACA BARBEITO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
Association between length of proestrus, follicular size, estrus behavior, and pregnancy rate in beef heifers subjected to fixedetime artificial insemination. |
Fecha de publicación : |
2022 |
Fuente / Imprenta : |
Theriogenology, 15 March 2022, volume 181, pages 1-7. doi: https://doi.org/10.1016/j.theriogenology.2021.12.028 |
DOI : |
10.1016/j.theriogenology.2021.12.028 |
Idioma : |
Inglés |
Notas : |
Article history: Received 9 June 2021 / Received in revised form 22 December 2021 / Accepted 25 December 2021 / Available online 31 December 2021. |
Contenido : |
This study evaluated the relationship between proestrus length and follicular size, estrous behavior, and pregnancy rate in Bos taurus beef heifers subjected to ixedetime artificial insemination (FTAI). A total of 911 heifers received a synchronization treatment protocol for FTAI (JeSynch) consisting of an intravaginal
progesterone device for 6 d, estradiol benzoate at the time of device insertion cloprostenol sodium and eCG at device removal and GnRH at the time of FTAI. The presence or absence of a corpus luteum (CL) was determined by ultrasonography at device insertion and all heifers were tail painted at device removal for estrus detection at the time of FTAI. For the establishment of different periods of proestrus length (i.e., interval from device removal to FTAI), GnRH was administered i.m. at 48 h (n ¼ 308), 60 h (n ¼ 290) or 72 h (n ¼ 313) after device removal. The diameter of the largest follicle at the time of GnRH administrationwas determined by ultrasonography, expression of estrous was determined by percentage of tail paint removal, and FTAI was performed at the time of GnRH administration in all heifers. The diameter of the largest follicle was greater when GnRH/FTAI was performed at 72 or 60 h (12.9 ± 0.2 mm and 12.8 ± 0.1 mm, respectively) than at 48 h (12.2 ± 0.1 mm, P < 0.05). The proportion of heifers in estrus tended to be greater when GnRH/FTAI was performed at 72 h (77.0%, 137/178) than at 48 h (68.2%,
122/179; P ¼ 0.06), and intermediate at 60 h (71.4%, 120/168). Pregnancy rate tended to be greater in heifers with the longest (72 h: 70.0%, 219/313) than the shortest (48 h: 63.6%, 196/308; P < 0.1) proestrus length, while 60 h proestrus length was intermediate (63.1%, 183/290; P¼ NS). Pregnancy rate was
affected by the presence of a CL at device insertion (71.3%, 352/494 in heifers with a CL, vs. 59.0%, 246/417 for those without a CL; P < 0.01). For those heifers bearing a CL, pregnancy rate was greater in heifers with a 72 h proestrus length (77.0%, 134/174) than with 48 or 60 h proestrus length (67.7%, 107/158 and
68.5%, 111/162; respectively; P < 0.05). In heifers without a CL, proestrus length did not affect pregnancy rate. In summary, extending proestrus length by delaying the interval from device removal to GnRH/FTAI from 48 to 72 h, was associated with a greater diameter of the preovulatory follicle, greater proportion of heifers expressing estrus at the time of FTAI, and greater pregnancy rate in cycling beef heifers. MenosThis study evaluated the relationship between proestrus length and follicular size, estrous behavior, and pregnancy rate in Bos taurus beef heifers subjected to ixedetime artificial insemination (FTAI). A total of 911 heifers received a synchronization treatment protocol for FTAI (JeSynch) consisting of an intravaginal
progesterone device for 6 d, estradiol benzoate at the time of device insertion cloprostenol sodium and eCG at device removal and GnRH at the time of FTAI. The presence or absence of a corpus luteum (CL) was determined by ultrasonography at device insertion and all heifers were tail painted at device removal for estrus detection at the time of FTAI. For the establishment of different periods of proestrus length (i.e., interval from device removal to FTAI), GnRH was administered i.m. at 48 h (n ¼ 308), 60 h (n ¼ 290) or 72 h (n ¼ 313) after device removal. The diameter of the largest follicle at the time of GnRH administrationwas determined by ultrasonography, expression of estrous was determined by percentage of tail paint removal, and FTAI was performed at the time of GnRH administration in all heifers. The diameter of the largest follicle was greater when GnRH/FTAI was performed at 72 or 60 h (12.9 ± 0.2 mm and 12.8 ± 0.1 mm, respectively) than at 48 h (12.2 ± 0.1 mm, P < 0.05). The proportion of heifers in estrus tended to be greater when GnRH/FTAI was performed at 72 h (77.0%, 137/178) than at 48 h (68.2%,
122/179; P ¼ 0.06), and intermediate at 60 h (71.4... Presentar Todo |
Palabras claves : |
FOLÍCULO; FOLLICLE; OVULATION; TIMED ARTIFICAL INSEMINATION; ULTRASONOGRAFIA; ULTRASONOGRAPHY. |
Asunto categoría : |
L53 Fisiología Animal - Reproducción |
Marc : |
LEADER 03484naa a2200241 a 4500 001 1062633 005 2022-01-14 008 2022 bl uuuu u00u1 u #d 024 7 $a10.1016/j.theriogenology.2021.12.028$2DOI 100 1 $aNÚÑEZ OLIVERA, R. 245 $aAssociation between length of proestrus, follicular size, estrus behavior, and pregnancy rate in beef heifers subjected to fixedetime artificial insemination.$h[electronic resource] 260 $c2022 500 $aArticle history: Received 9 June 2021 / Received in revised form 22 December 2021 / Accepted 25 December 2021 / Available online 31 December 2021. 520 $aThis study evaluated the relationship between proestrus length and follicular size, estrous behavior, and pregnancy rate in Bos taurus beef heifers subjected to ixedetime artificial insemination (FTAI). A total of 911 heifers received a synchronization treatment protocol for FTAI (JeSynch) consisting of an intravaginal progesterone device for 6 d, estradiol benzoate at the time of device insertion cloprostenol sodium and eCG at device removal and GnRH at the time of FTAI. The presence or absence of a corpus luteum (CL) was determined by ultrasonography at device insertion and all heifers were tail painted at device removal for estrus detection at the time of FTAI. For the establishment of different periods of proestrus length (i.e., interval from device removal to FTAI), GnRH was administered i.m. at 48 h (n ¼ 308), 60 h (n ¼ 290) or 72 h (n ¼ 313) after device removal. The diameter of the largest follicle at the time of GnRH administrationwas determined by ultrasonography, expression of estrous was determined by percentage of tail paint removal, and FTAI was performed at the time of GnRH administration in all heifers. The diameter of the largest follicle was greater when GnRH/FTAI was performed at 72 or 60 h (12.9 ± 0.2 mm and 12.8 ± 0.1 mm, respectively) than at 48 h (12.2 ± 0.1 mm, P < 0.05). The proportion of heifers in estrus tended to be greater when GnRH/FTAI was performed at 72 h (77.0%, 137/178) than at 48 h (68.2%, 122/179; P ¼ 0.06), and intermediate at 60 h (71.4%, 120/168). Pregnancy rate tended to be greater in heifers with the longest (72 h: 70.0%, 219/313) than the shortest (48 h: 63.6%, 196/308; P < 0.1) proestrus length, while 60 h proestrus length was intermediate (63.1%, 183/290; P¼ NS). Pregnancy rate was affected by the presence of a CL at device insertion (71.3%, 352/494 in heifers with a CL, vs. 59.0%, 246/417 for those without a CL; P < 0.01). For those heifers bearing a CL, pregnancy rate was greater in heifers with a 72 h proestrus length (77.0%, 134/174) than with 48 or 60 h proestrus length (67.7%, 107/158 and 68.5%, 111/162; respectively; P < 0.05). In heifers without a CL, proestrus length did not affect pregnancy rate. In summary, extending proestrus length by delaying the interval from device removal to GnRH/FTAI from 48 to 72 h, was associated with a greater diameter of the preovulatory follicle, greater proportion of heifers expressing estrus at the time of FTAI, and greater pregnancy rate in cycling beef heifers. 653 $aFOLÍCULO 653 $aFOLLICLE 653 $aOVULATION 653 $aTIMED ARTIFICAL INSEMINATION 653 $aULTRASONOGRAFIA 653 $aULTRASONOGRAPHY 700 1 $aBÓ, G.A. 700 1 $aMENCHACA, A. 773 $tTheriogenology, 15 March 2022, volume 181, pages 1-7. doi: https://doi.org/10.1016/j.theriogenology.2021.12.028
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