Lead effects on Brassica napus photosynthetic organs
In this study, effects of lead on ultracellular structure and pigment contents of Brassica napus were examined. Pb (II) was added in soluble form to soil prior to sowing. Pb contents were measured in plant organs at the ontogenetic stages of flowering (FL) and physiological maturity (PM). Pigment co...
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| Formato: | Artículo |
| Lenguaje: | Inglés |
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| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2017ferreyroa.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 03337nab a22003617a 4500 | ||
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| 001 | 20180604115030.0 | ||
| 003 | AR-BaUFA | ||
| 005 | 20231117130053.0 | ||
| 008 | 180604t2017 ne |||||o|||| 00| 0 eng d | ||
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| 999 | |d 45559 | ||
| 999 | |d 45559 | ||
| 999 | |d 45559 | ||
| 022 | |a 0147-6513 | ||
| 024 | |a 10.1016/j.ecoenv.2017.02.031 | ||
| 040 | |a AR-BaUFA | ||
| 245 | |a Lead effects on Brassica napus photosynthetic organs | ||
| 520 | |a In this study, effects of lead on ultracellular structure and pigment contents of Brassica napus were examined. Pb (II) was added in soluble form to soil prior to sowing. Pb contents were measured in plant organs at the ontogenetic stages of flowering (FL) and physiological maturity (PM). Pigment contents were evaluated through reflectance measurements. Pb content in organs was found to decrease in the order; roots - stems - leaves. Lead content in senescent leaves at FL stage was significantly higher than harvested leaves, strongly suggesting a detoxification mechanism. Leaves and stems harvested at the PM stage showed damage at subcellular level, namely chloroplast disorganization, cell wall damage and presence of osmiophilic bodies. Chlorophyll content increased in the presence of Pb at the FL stage, compared with control; at the PM stage, chlorophyll contents decreased with low Pb concentration but showed no significant differences with control at high Pb soil concentration. The results suggest an increase in antioxidants at low Pb concentration and cell damage at higher lead concentration. | ||
| 653 | |a HEAVY METALS | ||
| 653 | |a PHOTOSYNTHETIC PIGMENTS | ||
| 653 | |a SOIL POLLUTION | ||
| 653 | |a CELL DAMAGE | ||
| 700 | 1 | |9 67295 |a Ferreyroa, Gisele V. |u Instituto de Química Física de Materiales, Ambiente y Energía, CONICET and Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina | |
| 700 | 1 | |9 67296 |a Lagorio, María Gabriela |u Instituto de Química Física de Materiales, Ambiente y Energía, CONICET and Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina | |
| 700 | 1 | |a Trinelli, María A. |u Instituto de Geociencias Básicas y Aplicadas de Buenos Aires, CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina |9 67297 | |
| 700 | 1 | |9 24365 |a Lavado, Raúl Silvio |u Instituto de Investigaciones en Biociencias Agrícolas y Ambientales, CONICET, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina | |
| 700 | 1 | |9 37981 |a Molina, Fernando V. |u Instituto de Química Física de Materiales, Ambiente y Energía, CONICET and Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina. fmolina@qi.fcen.uba.ar | |
| 773 | |t Ecotoxicology and Environmental Safety |g Vol.140 (2017), p.123–130, grafs., fot. | ||
| 856 | |f 2017ferreyroa |i En Reservorio |q application/pdf |u http://ri.agro.uba.ar/files/intranet/articulo/2017ferreyroa.pdf |x ARTI201806 | ||
| 856 | |u https://www.elsevier.com |z LINK AL EDITOR | ||
| 942 | |c ARTICULO | ||
| 942 | |c ENLINEA | ||
| 976 | |a AAG | ||