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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Autores principales:	Ferreyroa, G.V., Lagorio, M.G., Trinelli, M.A., Lavado, R.S., Molina, F.V.
Formato:	JOUR
Materias:	Cell damage Heavy metals Photosynthetic pigments Soil pollution lead pigment antioxidant chlorophyll soil soil pollutant angiosperm detoxification photosynthesis pollution effect pollution exposure soil pollution ultrastructure Article cell damage cell ultrastructure cell wall chlorophyll content chloroplast concentration (parameters) controlled study nonhuman plant leaf plant root plant stem rapeseed senescence soil analysis analysis Argentina biomass chemistry drug effects environmental monitoring metabolism toxicity Brassica napus Antioxidants Biomass Chlorophyll Chloroplasts Environmental Monitoring Lead Photosynthesis Plant Leaves Plant Roots Plant Stems Soil Soil Pollutants
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_01476513_v140_n_p123_Ferreyroa
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_01476513_v140_n_p123_Ferreyroa
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spelling	todo:paper_01476513_v140_n_p123_Ferreyroa2023-10-03T15:00:39Z Lead effects on Brassica napus photosynthetic organs Ferreyroa, G.V. Lagorio, M.G. Trinelli, M.A. Lavado, R.S. Molina, F.V. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, G.V. Lagorio, M.G. Trinelli, M.A. Lavado, R.S. Molina, F.V. 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.
format	JOUR
author	Ferreyroa, G.V. Lagorio, M.G. Trinelli, M.A. Lavado, R.S. Molina, F.V.
author_facet	Ferreyroa, G.V. Lagorio, M.G. Trinelli, M.A. Lavado, R.S. Molina, F.V.
author_sort	Ferreyroa, G.V.
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
url	http://hdl.handle.net/20.500.12110/paper_01476513_v140_n_p123_Ferreyroa
work_keys_str_mv	AT ferreyroagv leadeffectsonbrassicanapusphotosyntheticorgans AT lagoriomg leadeffectsonbrassicanapusphotosyntheticorgans AT trinellima leadeffectsonbrassicanapusphotosyntheticorgans AT lavadors leadeffectsonbrassicanapusphotosyntheticorgans AT molinafv leadeffectsonbrassicanapusphotosyntheticorgans
_version_	1807321600833355776

Lead effects on Brassica napus photosynthetic organs

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