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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
Fecha : |
15/10/2014 |
Actualizado : |
20/06/2022 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Autor : |
DIAZ, P.; CABRERA, A.; ALEM, D.; LARRAÑAGA, P.; FERREIRA, F.; DALLA RIZZA, M. |
Afiliación : |
PAOLA ALEXANDRA DIAZ DELLAVALLE, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; ANDREA CECILIA CABRERA BARRIOS, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; DIEGO MARTIN ALEM GLISON, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; PATRICIA LUCIA LARRAÑAGA LUZ, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay; FERNANDO FERREIRA, Universidad de la República (UdelaR)/ Facultad de Química; MARCO DALLA RIZZA VILARO, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
Título : |
Antifungal activity of medicinal plant extracts against phytopathogenic fungus Alternaria spp. [Actividad antifúngica de extractos de plantas medicinales contra el hongo fitopatógeno alternaria spp.] |
Fecha de publicación : |
2011 |
Fuente / Imprenta : |
Chilean Journal of Agricultural Research, 2011, v.71, no.2, p.231-239. doi: http://dx.doi.org/10.4067/S0718-58392011000200008 |
Descripción física : |
2-s2.0-79960343579 |
ISSN : |
0718-5820 |
DOI : |
10.4067/S0718-58392011000200008 |
Idioma : |
Inglés |
Notas : |
RESEARCH. Received: 2 August 2010. Accepted: 26 December 2010. |
Contenido : |
ABSTRACT.
The aim of the study was to evaluate the antifungal activity of extracts of 10 plant species used in traditional Uruguayan medicine against the phytopathogenic fungus Alternaria spp. The plants were selected on the basis of their reported ethnobotanical uses. Aqueous, saline buffer and acid extracts of different plant species were screened in vitro for their antifungal activity against Alternaria spp. For the antifungal evaluation we used a microspectrophotometric assay. Minimal inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the extracts were determined. Three solvents were assayed on different tissues of the plants and among the 29 evaluated extracts, 31% of the extracts inhibited growth, similar to the effects of a chemical fungicide. Acid extracts of the plants were more effective than the aqueous or buffer extracts against Alternaria spp. The MIC values of the extracts were determined ranging between 1.25 and 25 μg mL-1. The MFC values of the extracts ranged between 1.25 μg mL-1 (Rosmarinus officinalis L.) and 10 μg mL-1 (Cynara scolymus L.). MICs and MFCs values obtained from leaves (Salvia officinalis L. and R. officinalis) and seeds extracts (Salvia sclarea L.) were quite comparable to values obtained with the conventional fungicide captan (2.5 μg mL-1). The extracts of Salvia sclarea, S. officinalis and R. officinalis could be considered as potential sources of antifungal compounds for treating diseases in plants. These extracts showed maximum activity, even at very low concentrations, and the same fungicide effects as chemical fungicide. We conclude from this that these extracts exhibit amazing fungicidal properties that support their traditional use as antiseptics. MenosABSTRACT.
The aim of the study was to evaluate the antifungal activity of extracts of 10 plant species used in traditional Uruguayan medicine against the phytopathogenic fungus Alternaria spp. The plants were selected on the basis of their reported ethnobotanical uses. Aqueous, saline buffer and acid extracts of different plant species were screened in vitro for their antifungal activity against Alternaria spp. For the antifungal evaluation we used a microspectrophotometric assay. Minimal inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the extracts were determined. Three solvents were assayed on different tissues of the plants and among the 29 evaluated extracts, 31% of the extracts inhibited growth, similar to the effects of a chemical fungicide. Acid extracts of the plants were more effective than the aqueous or buffer extracts against Alternaria spp. The MIC values of the extracts were determined ranging between 1.25 and 25 μg mL-1. The MFC values of the extracts ranged between 1.25 μg mL-1 (Rosmarinus officinalis L.) and 10 μg mL-1 (Cynara scolymus L.). MICs and MFCs values obtained from leaves (Salvia officinalis L. and R. officinalis) and seeds extracts (Salvia sclarea L.) were quite comparable to values obtained with the conventional fungicide captan (2.5 μg mL-1). The extracts of Salvia sclarea, S. officinalis and R. officinalis could be considered as potential sources of antifungal compounds for treating diseases in ... Presentar Todo |
Palabras claves : |
ANTIFUNGICOS. |
Thesagro : |
ALTERNARIA; FUNGICIDAS; HONGOS; PLANTAS MEDICINALES. |
Asunto categoría : |
H20 Enfermedades de las plantas |
URL : |
http://www.ainfo.inia.uy/digital/bitstream/item/3535/1/Diaz-Dellavalle-P.-2011.-Chilean-JAR-V.712-p.231-239.pdf
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Marc : |
LEADER 02812naa a2200289 a 4500 001 1051107 005 2022-06-20 008 2011 bl uuuu u00u1 u #d 022 $a0718-5820 024 7 $a10.4067/S0718-58392011000200008$2DOI 100 1 $aDIAZ, P. 245 $aAntifungal activity of medicinal plant extracts against phytopathogenic fungus Alternaria spp. [Actividad antifúngica de extractos de plantas medicinales contra el hongo fitopatógeno alternaria spp.]$h[electronic resource] 260 $c2011 300 $c2-s2.0-79960343579 500 $aRESEARCH. Received: 2 August 2010. Accepted: 26 December 2010. 520 $aABSTRACT. The aim of the study was to evaluate the antifungal activity of extracts of 10 plant species used in traditional Uruguayan medicine against the phytopathogenic fungus Alternaria spp. The plants were selected on the basis of their reported ethnobotanical uses. Aqueous, saline buffer and acid extracts of different plant species were screened in vitro for their antifungal activity against Alternaria spp. For the antifungal evaluation we used a microspectrophotometric assay. Minimal inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of the extracts were determined. Three solvents were assayed on different tissues of the plants and among the 29 evaluated extracts, 31% of the extracts inhibited growth, similar to the effects of a chemical fungicide. Acid extracts of the plants were more effective than the aqueous or buffer extracts against Alternaria spp. The MIC values of the extracts were determined ranging between 1.25 and 25 μg mL-1. The MFC values of the extracts ranged between 1.25 μg mL-1 (Rosmarinus officinalis L.) and 10 μg mL-1 (Cynara scolymus L.). MICs and MFCs values obtained from leaves (Salvia officinalis L. and R. officinalis) and seeds extracts (Salvia sclarea L.) were quite comparable to values obtained with the conventional fungicide captan (2.5 μg mL-1). The extracts of Salvia sclarea, S. officinalis and R. officinalis could be considered as potential sources of antifungal compounds for treating diseases in plants. These extracts showed maximum activity, even at very low concentrations, and the same fungicide effects as chemical fungicide. We conclude from this that these extracts exhibit amazing fungicidal properties that support their traditional use as antiseptics. 650 $aALTERNARIA 650 $aFUNGICIDAS 650 $aHONGOS 650 $aPLANTAS MEDICINALES 653 $aANTIFUNGICOS 700 1 $aCABRERA, A. 700 1 $aALEM, D. 700 1 $aLARRAÑAGA, P. 700 1 $aFERREIRA, F. 700 1 $aDALLA RIZZA, M. 773 $tChilean Journal of Agricultural Research, 2011$gv.71, no.2, p.231-239. doi: http://dx.doi.org/10.4067/S0718-58392011000200008
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INIA Las Brujas (LB) |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas; INIA Tacuarembó. |
Fecha actual : |
08/09/2014 |
Actualizado : |
16/11/2015 |
Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
Circulación / Nivel : |
A - 2 |
Autor : |
FIERRO, S.; GIL, J.; VIÑOLES, C.; OLIVERA-MUZANTE, J. |
Afiliación : |
CAROLINA VIÑOLES GIL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. |
Título : |
The use of prostaglandins in controlling estrous cycle of the ewe: A review. |
Fecha de publicación : |
2013 |
Fuente / Imprenta : |
Theriogenology, 2013, v. 79, no.3, p. 399?408. |
ISSN : |
0093-691X |
DOI : |
10.1016/j.theriogenology.2012.10.022 |
Idioma : |
Inglés |
Contenido : |
ABSTRACT.
This review considers the use of prostaglandin F2a and its synthetic analogues (PG) for controlling the estrous cycle of the ewe. Aspects such as phase of the estrus cycle, PG
analogues, PG doses, ovarian follicle development pattern, CL formation, progesterone synthesis, ovulation rate, sperm transport, embryo quality, and fertility rates after PG
administration are reviewed. Furthermore, protocols for estrus synchronization and their success in timed AI programs are discussed. Based on available information, the ovine CL is refractory to PG treatment for up to 2 days after ovulation. All PG analogues are effective when an appropriate dose is given; in that regard, there is a positive association between the dose administered and the proportion of ewes detected in estrus. Follicular response after PG is dependent on the phase of the estrous cycle at treatment. Altered sperm transport and low pregnancy rates are generally reported. However, reports on alteration of the steroidogenic capacity of preovulatory follicles, ovulation rate, embryo quality, recovery rates, and prolificacy, are controversial. Although various PG-based protocols can be used for estrus synchronization, a second PG injection improves estrus response when the stage of the estrous cycle at the first injection is unknown. The estrus cycle after PG administration has a normal length. Prostaglandin-based protocols for timed AI achieved poor reproductive outcomes, but increasing the interval between PG injections might increase pregnancy rates. Attempts to improve reproductive outcomes have been directed to provide a synchronized LH surge: use of different routes of AI (cervical or intrauterine), different PG doses, and increased intervals between PG injections. Finally we present our point of view regarding future perspectives on the use of PG in programs of controlled sheep reproduction.
@ 2013 Elsevier Inc. All rights reserved MenosABSTRACT.
This review considers the use of prostaglandin F2a and its synthetic analogues (PG) for controlling the estrous cycle of the ewe. Aspects such as phase of the estrus cycle, PG
analogues, PG doses, ovarian follicle development pattern, CL formation, progesterone synthesis, ovulation rate, sperm transport, embryo quality, and fertility rates after PG
administration are reviewed. Furthermore, protocols for estrus synchronization and their success in timed AI programs are discussed. Based on available information, the ovine CL is refractory to PG treatment for up to 2 days after ovulation. All PG analogues are effective when an appropriate dose is given; in that regard, there is a positive association between the dose administered and the proportion of ewes detected in estrus. Follicular response after PG is dependent on the phase of the estrous cycle at treatment. Altered sperm transport and low pregnancy rates are generally reported. However, reports on alteration of the steroidogenic capacity of preovulatory follicles, ovulation rate, embryo quality, recovery rates, and prolificacy, are controversial. Although various PG-based protocols can be used for estrus synchronization, a second PG injection improves estrus response when the stage of the estrous cycle at the first injection is unknown. The estrus cycle after PG administration has a normal length. Prostaglandin-based protocols for timed AI achieved poor reproductive outcomes, but increasing the interval betwee... Presentar Todo |
Thesagro : |
FERTILIDAD; OVEJAS; OVINOS; PROSTAGLANDINAS. |
Asunto categoría : |
-- |
Marc : |
LEADER 02561naa a2200229 a 4500 001 1053921 005 2015-11-16 008 2013 bl uuuu u00u1 u #d 022 $a0093-691X 024 7 $a10.1016/j.theriogenology.2012.10.022$2DOI 100 1 $aFIERRO, S. 245 $aThe use of prostaglandins in controlling estrous cycle of the ewe$bA review. 260 $c2013 520 $aABSTRACT. This review considers the use of prostaglandin F2a and its synthetic analogues (PG) for controlling the estrous cycle of the ewe. Aspects such as phase of the estrus cycle, PG analogues, PG doses, ovarian follicle development pattern, CL formation, progesterone synthesis, ovulation rate, sperm transport, embryo quality, and fertility rates after PG administration are reviewed. Furthermore, protocols for estrus synchronization and their success in timed AI programs are discussed. Based on available information, the ovine CL is refractory to PG treatment for up to 2 days after ovulation. All PG analogues are effective when an appropriate dose is given; in that regard, there is a positive association between the dose administered and the proportion of ewes detected in estrus. Follicular response after PG is dependent on the phase of the estrous cycle at treatment. Altered sperm transport and low pregnancy rates are generally reported. However, reports on alteration of the steroidogenic capacity of preovulatory follicles, ovulation rate, embryo quality, recovery rates, and prolificacy, are controversial. Although various PG-based protocols can be used for estrus synchronization, a second PG injection improves estrus response when the stage of the estrous cycle at the first injection is unknown. The estrus cycle after PG administration has a normal length. Prostaglandin-based protocols for timed AI achieved poor reproductive outcomes, but increasing the interval between PG injections might increase pregnancy rates. Attempts to improve reproductive outcomes have been directed to provide a synchronized LH surge: use of different routes of AI (cervical or intrauterine), different PG doses, and increased intervals between PG injections. Finally we present our point of view regarding future perspectives on the use of PG in programs of controlled sheep reproduction. @ 2013 Elsevier Inc. All rights reserved 650 $aFERTILIDAD 650 $aOVEJAS 650 $aOVINOS 650 $aPROSTAGLANDINAS 700 1 $aGIL, J. 700 1 $aVIÑOLES, C. 700 1 $aOLIVERA-MUZANTE, J. 773 $tTheriogenology, 2013$gv. 79, no.3, p. 399?408.
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