scholarly journals Toxic effects of copper-based nanoparticles or compounds to lettuce (Lactuca sativa) and alfalfa (Medicago sativa)

2015 ◽  
Vol 17 (1) ◽  
pp. 177-185 ◽  
Author(s):  
Jie Hong ◽  
Cyren M. Rico ◽  
Lijuan Zhao ◽  
Adeyemi S. Adeleye ◽  
Arturo A. Keller ◽  
...  
Keyword(s):  
Medicago Sativa ◽  
Lactuca Sativa ◽  
Toxic Effects

Cu NPs/compounds increased alfalfa shoot Cu, P, and S, reduced lettuce shoot P, and alfalfa and lettuce shoot Fe.

scholarly journals Toxic effects of environmental pollutants: Comparative investigation using Allium cepa L. and Lactuca sativa L.

Chemosphere ◽  
2017 ◽  
Vol 178 ◽  
pp. 359-367 ◽  
Author(s):  
Graciele Lurdes Silveira ◽  
Maria Gabriela Franco Lima ◽  
Gabriela Barreto dos Reis ◽  
Marcel José Palmieri ◽  
Larissa Fonseca Andrade-Vieria
Keyword(s):  
Allium Cepa ◽  
Lactuca Sativa ◽  
Environmental Pollutants ◽  
Comparative Investigation ◽  
Toxic Effects ◽  
Lactuca Sativa L ◽  
Allium Cepa L

scholarly journals Evolutive follow-up of the photocatalytic degradation of real textile effluents in TiO2 and TiO2/H2O2 systems and their toxic effects on Lactuca sativa seedlings

2009 ◽  
Vol 20 (9) ◽  
pp. 1589-1597 ◽  
Author(s):  
Juliana C. Garcia ◽  
Juliana I. Simionato ◽  
Vitor de Cinque Almeida ◽  
Soraya M. Palácio ◽  
Fábio L. Rossi ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Lactuca Sativa ◽  
Toxic Effects ◽  
Textile Effluents

Toxic effects of arsenic on Sinorhizobium–Medicago sativa symbiotic interaction

2008 ◽  
Vol 154 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Eloísa Pajuelo ◽  
Ignacio D. Rodríguez-Llorente ◽  
Mohammed Dary ◽  
Antonio J. Palomares
Keyword(s):  
Medicago Sativa ◽  
Toxic Effects ◽  
Symbiotic Interaction

scholarly journals INFECCIÓN DE LYMNAEA POR FASCIOLA HEPATICA (LINNAEUS, 1758) EN LA PROVINCIA DE PATAZ, PERÚ E IDENTIFICACIÓN DE PLANTAS ASOCIADAS A SUS BIOTOPOS

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
César Jara-Campos ◽  
Hermes Escalante-Añorga ◽  
Fiorella Siancas-Ruíz ◽  
Wilson Casana-Mantilla ◽  
Adderly Benites-Murrieta
Keyword(s):  
Medicago Sativa ◽  
Lactuca Sativa ◽  
Fasciola Hepatica ◽  
Lemna Minor ◽  
Nasturtium Officinale ◽  
Pennisetum Clandestinum

Los caracoles pulmonados de agua dulce del género Lymnaea Lamarck, 1799 (Mollusca: Basommatophora) actúan como hospederos intermediarios en el ciclo biológico de Fasciola hepatica (Linnaeus, 1758) agente etiológico de la fascioliasis, enfermedad zoonótica emergente de gran importancia por el impacto negativo en la producción pecuaria y en la salud de la población humana; sin embargo, algunos aspectos epidemiológicos importantes han sido parcialmente abordados, entre ellos, la distribución y magnitud de la infección del caracol huésped intermediario y el registro de las especies de vegetales asociadas a los hábitats de estos gasterópodos. En la presente investigación se propuso (i) determinar el porcentaje de parasitismo por F. hepatica en Lymnaea Lanmarck, 1799 (hospedero intermediario) en un Anexo de seis distritos (Buldibuyo, Chillia, Huaylillas, Taurija, Tayabamba y Urpay) de la Provincia de Pataz, Región La Libertad-Perú, en las estaciones de invierno y primavera del 2016, y (ii) identificar a las especies de vegetales de tallo corto presentes en los ambientes de captura de Lymnaea positivo a la infección por F. hepatica. Tanto los caracoles como los vegetales fueron identificados en base a sus características morfológicas y la búsqueda de redias y cercarias del parásito se hizo utilizando la técnica de aplastamiento y posterior disección de los caracoles. Se identificó a Lymnaea viatrix d´Orbigni, 1835 como única especie presente, con mayores frecuencias de infección en la estación de invierno en el distrito de Buldibuyo (39,6%) y en la estación de primavera en el distrito de Huaylillas (49,1%). También se encontró que las frecuencias de infección, en general, fueron más altas en primavera que en invierno. Se identificó a nueve especies de plantas en las zonas donde se detectaron al caracol infectado naturalmente con F. hepatica. Estas son: Adiantum sp. (culantrillo), Lactuca sativa Linnaeus (lechuga), Lemna minor (L.) Griff. 1851 (lenteja de agua), Medicago sativa Linnaeus (alfalfa), Pennisetum clandestinum Hochst. ex Chiov. (pasto kikuyu), Polygonum punctatum (Elliott) Small (catay dulce), Nasturtium officinale W.T. Aiton (berro), Thelypteris sp. (helecho) y Verbena litoralis Kunth (verbena).

The Effect of Streptomyces sp. Isolated from Acidic Cultures of Minerals on Plant Development in Environments Polluted with Mercury

2015 ◽  
Vol 1130 ◽  
pp. 598-601
Author(s):  
Sara Liz Pacheco ◽  
Patricia Sheen ◽  
Jasminc Hurtado
Keyword(s):  
Heavy Metals ◽  
Sodium Chloride ◽  
Phaseolus Vulgaris ◽  
Medicago Sativa ◽  
Plant Development ◽  
Lactuca Sativa ◽  
Root Length ◽  
Streptomyces Sp ◽  
Ph Tolerance ◽  
Number Of Leaves

Three isolates ofStreptomyces variabilis(AB5, F and K1A) and one isolate ofStreptomyces sp.(C2) were isolated of acidic cultures from mineral ores and concentrates from mines of the Peruvian highlands. The isolates were identified molecular and phenotypically and characterized by growth at different conditions as pH tolerance, temperature, and sodium chloride and heavy metals resistance.Streptomyces sp. (C2) was able to grow until 200 ppm of mercury andS. variabilis(AB5) grows in the presence of 100 ppm of mercury. The isolates AB5 and K1A ofS. variabiliswere able to grow only until 50 ppm of mercury.All strains were tested by their ability to induce germination ofLactuca sativa,Medicago sativaandPhaseolus vulgarisseeds exposed to different mercury concentrations. It was shown a significative improvement inL.sativaandP. vulgaris. InL. sativaexposed to 50 ppm of mercury, all strains were able to improve germination, root length and number of leaves. Without Streptomyces addition, they only growth until 10 ppm of mercury.Streptomyces sp.isolatehad better results in germination, root length and number of leaves ofL. sativa.The results found in this work indicate the potential of these isolates for restoration of soils polluted with mercury.

scholarly journals Evaluación de la eficiencia de comunidades de hongos micorrízicos arbusculares

Pro Sciences ◽  
2018 ◽  
Vol 2 (15) ◽  
pp. 1-7
Author(s):  
Mario Javier Bonilla Loor ◽  
Liceth Janina Solórzano Zambrano
Keyword(s):  
Medicago Sativa ◽  
Lactuca Sativa ◽  
Cichorium Intybus ◽  
Fragaria Vesca

La eficiencia es la capacidad del HMA para mejorar el estado del huésped, el presente trabajo  evaluó aislados de HMA seleccionados, mediante cuatro sistemas experimentales diferentes: en sistemas sándwich, con la planta huésped Cichorium intybus, tanto en el invernadero como en la cámara de crecimiento; en el invernadero sobre un sustrato a base de suelo, con las plantas hospedadoras C. intybus, Medicago sativa y Lactuca sativa; En el invernadero sobre sustrato a base de suelo, con las plantas hospederas Fragaria vesca y M. sativa. Los aislados seleccionados mostraron un comportamiento diferencial en simbiosis con diversas plantas hospedadoras, lo que sugiere que el hospedador En particular, un aislado de F. mosseae pudo mejorar la biomasa tanto en L. sativa como en M. sativa y la absorción de nutrientes en M. sativa, mientras que otros aislamientos de la misma especie indujeron a un mayor crecimiento en F. vesca y C. intybus.

Protection of leaf protein of lucerne (Medicago sativa L.) against degradation in the rumen by treatment with formaldehyde and glutaraldehyde

1980 ◽  
Vol 95 (3) ◽  
pp. 603-617 ◽  
Author(s):  
J. L. Mangan ◽  
D. J. Jordan ◽  
Janet West ◽  
P. J. Webb
Keyword(s):  
Medicago Sativa ◽  
Rumen Fluid ◽  
Major Effect ◽  
Toxic Effects ◽  
Leaf Protein ◽  
Tween 20 ◽  
Total N ◽  
Mean Values ◽  
Soluble Leaf Protein ◽  
Micro Organisms

SUMMARYAqueous glutaraldehyde, in the presence of wetting agents Tween-20 or Haemosol, reacted with fresh cut lucerne (Medicago sativa L.), complete reaction being obtained with about 7·2 g (72 mmol)/kg herbage, or 18g/100g crude protein. Reaction with 25% w/v aqueous glutaraldehyde sprayed on to fresh lucerne was rapid, and at the rate of 66 mmol/kg lucerne, all aldehyde had reacted in 3 h and about 60% of the soluble leaf protein became insoluble. Formaldehyde at twice the molar concentration of glutaraldehyde was absorbed rapidly, but a longer time, up to 24 h, was required for the protein to become insoluble. Treatments with 22, 44 and 66 mmol glutaraldehyde/kg lucerne, and 44, 88 and 132 mmol formaldehyde/kg showed that reaction with leaf protein was approximately proportional to the amount of aldehyde. A major effect on the leaf cells was the fixation of chloroplasts, and intact fixed chloroplasts were isolated from treated lucerne with high protein: chlorophyll ratios of 5·8:1 to 9·5:1.Two varieties of lucerne, Kabul and Europe, pot-grown in a controlled environment cabinet, reacted rapidly when sprayed with glutaraldehyde and in 3 h soluble leaf protein was reduced from 30 to 16–17% of the total N. The plants rapidly lost water and the dry matter of the leaves rose to 42% for Kabul and 45% for Europe in 24 h. Stems showed little effect. Field spraying of lucerne with glutaraldehyde similarly fixed soluble leaf protein and caused desiccation of the leaves, rising to 47–50% D. M. in 3 days. The stems were little affected and subsequent regrowth of the plants was not inhibited.Feeding glutaraldehyde- and formaldehyde-sprayed lucerne to rumen-fistulated cattle showed that release of soluble leaf protein into the rumen fluid was greatly reduced, mean values being 40 and 43% respectively of the values obtained when control lucerne was fed. Mean ammonia concentrations were similarly reduced to 49 and 33% of the control values. Formaldehyde-treated lucerne, even after reaction for several days, frequently showed toxic effects on rumen micro-organisms, particularly protozoa. Glutaraldehyde reacted more rapidly with herbage and no toxic effects were observed. Both glutaraldehyde- and formaldehyde-treated lucerne were highly palatable to cattle.

Sign in / Sign up

Export Citation Format

Share Document