Cadmium-stress in white lupin: effects on nodule structure and functioning
10 pages, figures, and tables statistics.
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| Format: | artículo biblioteca |
| Language: | English |
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Elsevier
2003
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| Subjects: | Cadmium stress, Glycoprotein, Leghemoglobin, Lupinus albus, Nodule metabolites, Nodule structure, Stress indicators, |
| Online Access: | http://hdl.handle.net/10261/29035 |
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dig-ica-es-10261-290352021-06-07T07:41:07Z Cadmium-stress in white lupin: effects on nodule structure and functioning Carpena-Ruiz, Ramón O. Vázquez, Saúl Esteban, Elvira Fernández-Pascual, Mercedes Felipe, Mª Rosario de Zornoza, P. Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators 10 pages, figures, and tables statistics. Cadmium effects on nodule structure and changes in organic and amino acids, proteins, nutrients and some stress indicators were studied in nodules of white lupin (Lupinus albus L., cv.Multolupa). Plants were grown hydroponically on perlite for 49 d with (18 μM) or without Cd in the nutrient solution. Cadmium-treated plants showed decreases in leaf chlorophyll and shoot sucrose concentrations, but sucrose did not change in nodules. Cadmium application produced alterations in nodule cortex and infected zone structure. Furthermore, Cd supply caused a marked decrease in P, K, leghemoglobin, N–amino compounds, malate, succinate and soluble protein in the nodules. Conversely, the levels of lipid peroxidation and total thiols increased strongly. Results obtained suggest that white lupin nodules are Cd sensitive, in spite of Cd sequestering by cell walls and thiols. The main phytotoxic effects of Cd on nodule structure and function were the occlusion with glycoprotein of intracellular spaces of nodule cortex, alterations in symbiosomes, enrichment in Cd of cell walls and oxidative stress. Glycoprotein accumulation and leghemoglobin depletion may be considered useful indicators of Cd stress in white lupin nodules. The authors are grateful to the Spanish MCyT (REN2001- 113-CO2-01 project) and Fundación Areces for their financial support and to Mr. A. Gil Aragón (SIDT, Junta de Extremadura) for supplying the seeds. The authors thank Dr. N.J. Brewin for providing the MAC236. The technical assistance of C. de Mesa and F. Pinto from CSIC is greatly acknowledged. The nutrients were analysed in the ICP/MS laboratory from the SIDI-UAM with the assistance of I. Rivas. The amino acid analysis was possible thanks to Prof. M. Ugarte and the technical assistance of P. Sanz (CBM).We are also grateful to P. Martínez for her technical assistance with plant growth. Peer reviewed 2010-11-12T08:52:35Z 2010-11-12T08:52:35Z 2003 artículo http://purl.org/coar/resource_type/c_6501 Plant Physiology and Biochemistry 41: 911-919 /2003) 0981-9428 http://hdl.handle.net/10261/29035 10.1016/S0981-9428(03)00136-0 en http://dx.doi.org/10.1016/S0981-9428(03)00136-0 none Elsevier |
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Biblioteca del ICA España |
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English |
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Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators |
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Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators Carpena-Ruiz, Ramón O. Vázquez, Saúl Esteban, Elvira Fernández-Pascual, Mercedes Felipe, Mª Rosario de Zornoza, P. Cadmium-stress in white lupin: effects on nodule structure and functioning |
| description |
10 pages, figures, and tables statistics. |
| format |
artículo |
| topic_facet |
Cadmium stress Glycoprotein Leghemoglobin Lupinus albus Nodule metabolites Nodule structure Stress indicators |
| author |
Carpena-Ruiz, Ramón O. Vázquez, Saúl Esteban, Elvira Fernández-Pascual, Mercedes Felipe, Mª Rosario de Zornoza, P. |
| author_facet |
Carpena-Ruiz, Ramón O. Vázquez, Saúl Esteban, Elvira Fernández-Pascual, Mercedes Felipe, Mª Rosario de Zornoza, P. |
| author_sort |
Carpena-Ruiz, Ramón O. |
| title |
Cadmium-stress in white lupin: effects on nodule structure and functioning |
| title_short |
Cadmium-stress in white lupin: effects on nodule structure and functioning |
| title_full |
Cadmium-stress in white lupin: effects on nodule structure and functioning |
| title_fullStr |
Cadmium-stress in white lupin: effects on nodule structure and functioning |
| title_full_unstemmed |
Cadmium-stress in white lupin: effects on nodule structure and functioning |
| title_sort |
cadmium-stress in white lupin: effects on nodule structure and functioning |
| publisher |
Elsevier |
| publishDate |
2003 |
| url |
http://hdl.handle.net/10261/29035 |
| work_keys_str_mv |
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| _version_ |
1777663584539508736 |