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 con...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01476513_v140_n_p123_Ferreyroa http://hdl.handle.net/20.500.12110/paper_01476513_v140_n_p123_Ferreyroa |
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paper:paper_01476513_v140_n_p123_Ferreyroa2023-06-08T15:12:52Z Lead effects on Brassica napus photosynthetic organs Ferreyroa, Gisele Veronica Lagorio, María Gabriela Trinelli, María Alcira Molina, Fernando Victor Cell damage Heavy metals Photosynthetic pigments Soil pollution lead pigment antioxidant chlorophyll lead soil soil pollutant angiosperm antioxidant detoxification lead photosynthesis pollution effect pollution exposure soil pollution ultrastructure Article cell damage cell ultrastructure cell wall chlorophyll content chloroplast concentration (parameters) controlled study detoxification nonhuman plant leaf plant root plant stem rapeseed senescence soil analysis analysis Argentina biomass chemistry drug effects environmental monitoring metabolism photosynthesis rapeseed soil soil pollutant toxicity ultrastructure Brassica napus Antioxidants Argentina Biomass Brassica napus Chlorophyll Chloroplasts Environmental Monitoring Lead Photosynthesis Plant Leaves Plant Roots Plant Stems Soil Soil Pollutants 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. © 2017 Elsevier Inc. Fil:Ferreyroa, G.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Lagorio, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Trinelli, M.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Molina, F.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01476513_v140_n_p123_Ferreyroa http://hdl.handle.net/20.500.12110/paper_01476513_v140_n_p123_Ferreyroa |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
Cell damage Heavy metals Photosynthetic pigments Soil pollution lead pigment antioxidant chlorophyll lead soil soil pollutant angiosperm antioxidant detoxification lead photosynthesis pollution effect pollution exposure soil pollution ultrastructure Article cell damage cell ultrastructure cell wall chlorophyll content chloroplast concentration (parameters) controlled study detoxification nonhuman plant leaf plant root plant stem rapeseed senescence soil analysis analysis Argentina biomass chemistry drug effects environmental monitoring metabolism photosynthesis rapeseed soil soil pollutant toxicity ultrastructure Brassica napus Antioxidants Argentina Biomass Brassica napus Chlorophyll Chloroplasts Environmental Monitoring Lead Photosynthesis Plant Leaves Plant Roots Plant Stems Soil Soil Pollutants |
spellingShingle |
Cell damage Heavy metals Photosynthetic pigments Soil pollution lead pigment antioxidant chlorophyll lead soil soil pollutant angiosperm antioxidant detoxification lead photosynthesis pollution effect pollution exposure soil pollution ultrastructure Article cell damage cell ultrastructure cell wall chlorophyll content chloroplast concentration (parameters) controlled study detoxification nonhuman plant leaf plant root plant stem rapeseed senescence soil analysis analysis Argentina biomass chemistry drug effects environmental monitoring metabolism photosynthesis rapeseed soil soil pollutant toxicity ultrastructure Brassica napus Antioxidants Argentina Biomass Brassica napus Chlorophyll Chloroplasts Environmental Monitoring Lead Photosynthesis Plant Leaves Plant Roots Plant Stems Soil Soil Pollutants Ferreyroa, Gisele Veronica Lagorio, María Gabriela Trinelli, María Alcira Molina, Fernando Victor Lead effects on Brassica napus photosynthetic organs |
topic_facet |
Cell damage Heavy metals Photosynthetic pigments Soil pollution lead pigment antioxidant chlorophyll lead soil soil pollutant angiosperm antioxidant detoxification lead photosynthesis pollution effect pollution exposure soil pollution ultrastructure Article cell damage cell ultrastructure cell wall chlorophyll content chloroplast concentration (parameters) controlled study detoxification nonhuman plant leaf plant root plant stem rapeseed senescence soil analysis analysis Argentina biomass chemistry drug effects environmental monitoring metabolism photosynthesis rapeseed soil soil pollutant toxicity ultrastructure Brassica napus Antioxidants Argentina Biomass Brassica napus Chlorophyll Chloroplasts Environmental Monitoring Lead Photosynthesis Plant Leaves Plant Roots Plant Stems Soil Soil Pollutants |
description |
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. © 2017 Elsevier Inc. |
author |
Ferreyroa, Gisele Veronica Lagorio, María Gabriela Trinelli, María Alcira Molina, Fernando Victor |
author_facet |
Ferreyroa, Gisele Veronica Lagorio, María Gabriela Trinelli, María Alcira Molina, Fernando Victor |
author_sort |
Ferreyroa, Gisele Veronica |
title |
Lead effects on Brassica napus photosynthetic organs |
title_short |
Lead effects on Brassica napus photosynthetic organs |
title_full |
Lead effects on Brassica napus photosynthetic organs |
title_fullStr |
Lead effects on Brassica napus photosynthetic organs |
title_full_unstemmed |
Lead effects on Brassica napus photosynthetic organs |
title_sort |
lead effects on brassica napus photosynthetic organs |
publishDate |
2017 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01476513_v140_n_p123_Ferreyroa http://hdl.handle.net/20.500.12110/paper_01476513_v140_n_p123_Ferreyroa |
work_keys_str_mv |
AT ferreyroagiseleveronica leadeffectsonbrassicanapusphotosyntheticorgans AT lagoriomariagabriela leadeffectsonbrassicanapusphotosyntheticorgans AT trinellimariaalcira leadeffectsonbrassicanapusphotosyntheticorgans AT molinafernandovictor leadeffectsonbrassicanapusphotosyntheticorgans |
_version_ |
1768545778317393920 |