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Taryn L. Bauerle - One of the best experts on this subject based on the ideXlab platform.

  • Links between Belowground and Aboveground Resource-Related Traits Reveal Species Growth Strategies that Promote Invasive Advantages
    2016
    Co-Authors: Maria S. Smith, Marc Goebel, Jason D Fridley, Taryn L. Bauerle
    Abstract:

    Belowground processes are rarely considered in comparison studies of native verses invasive species. We examined relationships between belowground fine root production and lifespan, leaf phenology, and seasonal nitrogen dynamics of Lonicera japonica (non-native) versus L. sempervirens (native) and Frangula alnus (non-native) versus Rhamnus alnifolia (native), over time. First and second order fine roots were monitored from 2010 to 2012 using minirhizotron technology and rhizotron windows. 15N uptake of fine roots was measured across spring and fall seasons. Significant differences in fine root production across seasons were seen between Lonicera species, but not between Frangula and Rhamnus, with both groups having notable asynchrony in regards to the timing of leaf production. Root order and the number of root neighbors at the time of root death were the strongest predictors of root lifespan of both species pairs. Seasonal 15N uptake was higher in spring than in the fall, which did not support the need for higher root activity to correspond with extended leaf phenology. We found higher spring 15N uptake in non-native L. japonica compared to native L. sempervirens, although there was no difference in 15N uptake between Frangula and Rhamnus species. Our findings indicate the potential for fast-growing non-native Lonicera japonica and Frangula alnus to outcompete native counterparts through differences in biomass allocation

  • Links between belowground and aboveground resource-related traits reveal species growth strategies that promote invasive advantages
    PLOS ONE, 2014
    Co-Authors: Maria S. Smith, Marc Goebel, Jason D Fridley, Taryn L. Bauerle
    Abstract:

    Belowground processes are rarely considered in comparison studies of native verses invasive species. We examined relationships between belowground fine root production and lifespan, leaf phenology, and seasonal nitrogen dynamics of Lonicera japonica (non-native) versus L. sempervirens (native) and Frangula alnus (non-native) versus Rhamnus alnifolia (native), over time. First and second order fine roots were monitored from 2010 to 2012 using minirhizotron technology and rhizotron windows. 15N uptake of fine roots was measured across spring and fall seasons. Significant differences in fine root production across seasons were seen between Lonicera species, but not between Frangula and Rhamnus, with both groups having notable asynchrony in regards to the timing of leaf production. Root order and the number of root neighbors at the time of root death were the strongest predictors of root lifespan of both species pairs. Seasonal 15N uptake was higher in spring than in the fall, which did not support the need for higher root activity to correspond with extended leaf phenology. We found higher spring 15N uptake in non-native L. japonica compared to native L. sempervirens, although there was no difference in 15N uptake between Frangula and Rhamnus species. Our findings indicate the potential for fast-growing non-native Lonicera japonica and Frangula alnus to outcompete native counterparts through differences in biomass allocation, root turnover, and nitrogen uptake, however evidence that this is a general strategy of invader dominance is limited.

Jurado T. B. - One of the best experts on this subject based on the ideXlab platform.

  • COMPARACIÓN DE ESPECTROS FTIR DE PLANTAS PURGANTES [ALOE VERA LINNEO. ALOE BARBADENSIS MILLER, RHEUM PALMATUM (RUIBARBO), Rhamnus PURSIANA (CÁSCARA SAGRADA) Y CASSIA SP. (SEN)]
    Facultad de Química e Ingeniería Química Universidad Nacional Mayor de San Marcos, 2014
    Co-Authors: Saavedra N. F., Ale B. N., Gordillo R. G., Rodríguez B. M., Apesteguía I. J., Jurado T. B.
    Abstract:

    FTIR identified the carbonyl C = O functional group of the anthraquinone derivatives in aqueous macerated and alcoholics purges as aloe plants (Aloe vera L. , Aloe barbadensis Miller ) , senna ( Cassia spp . ) , Rhubarb ( Rheum palmatum) and shell sagrada (Rhamnus Pursiana ) without prior separation of the components by chromatographic methods or other physical and chemical methods . We show that the absorption maxima for the C = O carbonyl group of the anthraquinone derivatives in aqueous and alcoholic macerated Aloe vera and Aloe barbadensis L. Miller- interact with inorganic salts - for a week , as time passes, these maxima moving to higher-frequency areas . This procedure can be recommended for detection of anthraquinone derivatives in encapsulated pharmaceutical preparations and extracts of the plants mentioned purgativesPor FTIR se identifica al grupo funcional carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de plantas purgantes como aloes (Aloe vera L., Aloe barbadensis Miller), sen (Cassia sp.), ruibarbo (Rheum palmatum) y cáscara sagrada (Rhamnus pursiana), sin separación previa de los componentes por métodos cromatográficos u otros métodos físico químicos. Se demuestra que los máximos de absorción para el grupo carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de Aloe vera L. y Aloe barbadensis Miller -interactúan con sales inorgánicas durante una semana-, conforme transcurre el tiempo, estos máximos se desplazan a zonas de mayor frecuencia. Este procedimiento puede recomendarse para la detección de los derivados antraquinónicos en extractos y preparados galénicos encapsulados de las plantas purgantes mencionada

  • FTIR SPECTRUM COMPARISON OF PLANTS purgatives [ ALOE VERA LINNEO . ALOE BARBADENSIS MILLER , RHEUM PALMATUM ( Rhubarb ) , Rhamnus Pursiana ( SACRED SHELL ) AND CASSIA SP. (SEN )]
    Facultad de Química e Ingeniería Química Universidad Nacional Mayor de San Marcos, 2011
    Co-Authors: Saavedra N. F., Ale B. N., Gordillo R. G., Rodríguez B. M., Apesteguía I. J., Jurado T. B.
    Abstract:

    Por FTIR se identifica al grupo funcional carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de plantas purgantes como aloes (Aloe vera L., Aloe barbadensis Miller), sen (Cassia sp.), ruibarbo (Rheum palmatum) y cáscara sagrada (Rhamnus pursiana), sin separación previa de los componentes por métodos cromatográficos u otros métodos físico químicos. Se demuestra que los máximos de absorción para el grupo carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de Aloe vera L. y Aloe barbadensis Miller -interactúan con sales inorgánicas durante una semana-, conforme transcurre el tiempo, estos máximos se desplazan a zonas de mayor frecuencia. Este procedimiento puede recomendarse para la detección de los derivados antraquinónicos en extractos y preparados galénicos encapsulados de las plantas purgantes mencionadasFTIR identified the carbonyl C = O functional group of the anthraquinone derivatives in aqueous macerated and alcoholics purges as aloe plants (Aloe vera L. , Aloe barbadensis Miller ) , senna ( Cassia spp . ) , Rhubarb ( Rheum palmatum) and shell sagrada (Rhamnus Pursiana ) without prior separation of the components by chromatographic methods or other physical and chemical methods . We show that the absorption maxima for the C = O carbonyl group of the anthraquinone derivatives in aqueous and alcoholic macerated Aloe vera and Aloe barbadensis L. Miller- interact with inorganic salts - for a week , as time passes, these maxima moving to higher-frequency areas . This procedure can be recommended for detection of anthraquinone derivatives in encapsulated pharmaceutical preparations and extracts of the plants mentioned purgative

Maria S. Smith - One of the best experts on this subject based on the ideXlab platform.

  • Links between Belowground and Aboveground Resource-Related Traits Reveal Species Growth Strategies that Promote Invasive Advantages
    2016
    Co-Authors: Maria S. Smith, Marc Goebel, Jason D Fridley, Taryn L. Bauerle
    Abstract:

    Belowground processes are rarely considered in comparison studies of native verses invasive species. We examined relationships between belowground fine root production and lifespan, leaf phenology, and seasonal nitrogen dynamics of Lonicera japonica (non-native) versus L. sempervirens (native) and Frangula alnus (non-native) versus Rhamnus alnifolia (native), over time. First and second order fine roots were monitored from 2010 to 2012 using minirhizotron technology and rhizotron windows. 15N uptake of fine roots was measured across spring and fall seasons. Significant differences in fine root production across seasons were seen between Lonicera species, but not between Frangula and Rhamnus, with both groups having notable asynchrony in regards to the timing of leaf production. Root order and the number of root neighbors at the time of root death were the strongest predictors of root lifespan of both species pairs. Seasonal 15N uptake was higher in spring than in the fall, which did not support the need for higher root activity to correspond with extended leaf phenology. We found higher spring 15N uptake in non-native L. japonica compared to native L. sempervirens, although there was no difference in 15N uptake between Frangula and Rhamnus species. Our findings indicate the potential for fast-growing non-native Lonicera japonica and Frangula alnus to outcompete native counterparts through differences in biomass allocation

  • Links between belowground and aboveground resource-related traits reveal species growth strategies that promote invasive advantages
    PLOS ONE, 2014
    Co-Authors: Maria S. Smith, Marc Goebel, Jason D Fridley, Taryn L. Bauerle
    Abstract:

    Belowground processes are rarely considered in comparison studies of native verses invasive species. We examined relationships between belowground fine root production and lifespan, leaf phenology, and seasonal nitrogen dynamics of Lonicera japonica (non-native) versus L. sempervirens (native) and Frangula alnus (non-native) versus Rhamnus alnifolia (native), over time. First and second order fine roots were monitored from 2010 to 2012 using minirhizotron technology and rhizotron windows. 15N uptake of fine roots was measured across spring and fall seasons. Significant differences in fine root production across seasons were seen between Lonicera species, but not between Frangula and Rhamnus, with both groups having notable asynchrony in regards to the timing of leaf production. Root order and the number of root neighbors at the time of root death were the strongest predictors of root lifespan of both species pairs. Seasonal 15N uptake was higher in spring than in the fall, which did not support the need for higher root activity to correspond with extended leaf phenology. We found higher spring 15N uptake in non-native L. japonica compared to native L. sempervirens, although there was no difference in 15N uptake between Frangula and Rhamnus species. Our findings indicate the potential for fast-growing non-native Lonicera japonica and Frangula alnus to outcompete native counterparts through differences in biomass allocation, root turnover, and nitrogen uptake, however evidence that this is a general strategy of invader dominance is limited.

Luke C Skinner - One of the best experts on this subject based on the ideXlab platform.

  • use of native range surveys to determine the potential host range of arthropod herbivores for biological control of two related weed species Rhamnus cathartica and frangula alnus
    Biological Control, 2008
    Co-Authors: Andre Gassmann, Ivo Tosevski, Luke C Skinner
    Abstract:

    Abstract The buckthorn species, Rhamnus cathartica and Frangula alnus, are shrubs and small trees of Eurasian origin that have become invasive in North America. A program was initiated in 2001 to reassess the potential for biological control of these two species taking into consideration increasing concerns over potential non-target impacts of biological control agents. The key question was whether R. cathartica and F. alnus are distantly enough related that they would not share the same arthropod complex in Europe, and, if so, which arthropod species would be less likely to use native North American buckthorns as hosts. Some 1000 insect samples collected at 99 sites in Europe indicated that the arthropod-species richness is higher on R. cathartica than on F. alnus and includes more species that are presumed to be host-specific at the species or genus level. This discrepancy supports the hypothesis that the genus Rhamnus in the temperate Old World has evolved in isolation of the genus Frangula in the Neotropics and that taxonomic isolation has an effect on species richness of specialized herbivores. The fauna was dominated by Lepidoptera (22 species), followed by Hemiptera (8 species), Diptera (4 species), Acarina (4 species) and Coleoptera (1 species). At least 12 arthropod species were found exclusively on Rhamnus, some of which may be specific to R. cathartica. Several species usually associated with Rhamnus were found rarely on F. alnus but the field host range of these species still needs to be confirmed. Only one species was found exclusively on F. alnus. The findings indicate that, with one exception, there are no species or genus-specific agents available for biological control of F. alnus at this stage. However, additional field surveys may reveal other host-specific species.

Saavedra N. F. - One of the best experts on this subject based on the ideXlab platform.

  • COMPARACIÓN DE ESPECTROS FTIR DE PLANTAS PURGANTES [ALOE VERA LINNEO. ALOE BARBADENSIS MILLER, RHEUM PALMATUM (RUIBARBO), Rhamnus PURSIANA (CÁSCARA SAGRADA) Y CASSIA SP. (SEN)]
    Facultad de Química e Ingeniería Química Universidad Nacional Mayor de San Marcos, 2014
    Co-Authors: Saavedra N. F., Ale B. N., Gordillo R. G., Rodríguez B. M., Apesteguía I. J., Jurado T. B.
    Abstract:

    FTIR identified the carbonyl C = O functional group of the anthraquinone derivatives in aqueous macerated and alcoholics purges as aloe plants (Aloe vera L. , Aloe barbadensis Miller ) , senna ( Cassia spp . ) , Rhubarb ( Rheum palmatum) and shell sagrada (Rhamnus Pursiana ) without prior separation of the components by chromatographic methods or other physical and chemical methods . We show that the absorption maxima for the C = O carbonyl group of the anthraquinone derivatives in aqueous and alcoholic macerated Aloe vera and Aloe barbadensis L. Miller- interact with inorganic salts - for a week , as time passes, these maxima moving to higher-frequency areas . This procedure can be recommended for detection of anthraquinone derivatives in encapsulated pharmaceutical preparations and extracts of the plants mentioned purgativesPor FTIR se identifica al grupo funcional carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de plantas purgantes como aloes (Aloe vera L., Aloe barbadensis Miller), sen (Cassia sp.), ruibarbo (Rheum palmatum) y cáscara sagrada (Rhamnus pursiana), sin separación previa de los componentes por métodos cromatográficos u otros métodos físico químicos. Se demuestra que los máximos de absorción para el grupo carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de Aloe vera L. y Aloe barbadensis Miller -interactúan con sales inorgánicas durante una semana-, conforme transcurre el tiempo, estos máximos se desplazan a zonas de mayor frecuencia. Este procedimiento puede recomendarse para la detección de los derivados antraquinónicos en extractos y preparados galénicos encapsulados de las plantas purgantes mencionada

  • FTIR SPECTRUM COMPARISON OF PLANTS purgatives [ ALOE VERA LINNEO . ALOE BARBADENSIS MILLER , RHEUM PALMATUM ( Rhubarb ) , Rhamnus Pursiana ( SACRED SHELL ) AND CASSIA SP. (SEN )]
    Facultad de Química e Ingeniería Química Universidad Nacional Mayor de San Marcos, 2011
    Co-Authors: Saavedra N. F., Ale B. N., Gordillo R. G., Rodríguez B. M., Apesteguía I. J., Jurado T. B.
    Abstract:

    Por FTIR se identifica al grupo funcional carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de plantas purgantes como aloes (Aloe vera L., Aloe barbadensis Miller), sen (Cassia sp.), ruibarbo (Rheum palmatum) y cáscara sagrada (Rhamnus pursiana), sin separación previa de los componentes por métodos cromatográficos u otros métodos físico químicos. Se demuestra que los máximos de absorción para el grupo carbonilo C=O de los derivados antraquinónicos en macerados acuosos y alcohólicos de Aloe vera L. y Aloe barbadensis Miller -interactúan con sales inorgánicas durante una semana-, conforme transcurre el tiempo, estos máximos se desplazan a zonas de mayor frecuencia. Este procedimiento puede recomendarse para la detección de los derivados antraquinónicos en extractos y preparados galénicos encapsulados de las plantas purgantes mencionadasFTIR identified the carbonyl C = O functional group of the anthraquinone derivatives in aqueous macerated and alcoholics purges as aloe plants (Aloe vera L. , Aloe barbadensis Miller ) , senna ( Cassia spp . ) , Rhubarb ( Rheum palmatum) and shell sagrada (Rhamnus Pursiana ) without prior separation of the components by chromatographic methods or other physical and chemical methods . We show that the absorption maxima for the C = O carbonyl group of the anthraquinone derivatives in aqueous and alcoholic macerated Aloe vera and Aloe barbadensis L. Miller- interact with inorganic salts - for a week , as time passes, these maxima moving to higher-frequency areas . This procedure can be recommended for detection of anthraquinone derivatives in encapsulated pharmaceutical preparations and extracts of the plants mentioned purgative