Effects of long-term cadmium exposure on growth and metabolomic profile of tomato plants

Autor: Michael Maucourt, Annick Moing, Pierre Baldet, Latifa Boulila Zoghlami, Hédia Hédiji, Wahbi Djebali, Catherine Deborde, Renaud Brouquisse, Philippe Gallusci, Cécile Cabasson, Anne Bertrand, Wided Chaïbi
Přispěvatelé: Université of Tunis, UMR INRA / Univ. Bordeaux 1 / Univ. Bordeaux 2 : Physiologie et Biotechnologie Végétales, Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux 1 - Sciences Technologies (U. Bordeaux 1)-Université Victor Segalen - Bordeaux 2 (U. Bordeaux 2), Interactions Biotiques et Santé Végétale, Institut National de la Recherche Agronomique (INRA)
Rok vydání: 2010
Předmět:
Chlorophyll
0106 biological sciences
Time Factors
Proline
[SDV]Life Sciences [q-bio]
Health
Toxicology and Mutagenesis
alpha-Tocopherol
Gene Expression
chemistry.chemical_element
Ascorbic Acid
Biology
Plant Roots
01 natural sciences
PROFIL METABOLIQUE
03 medical and health sciences
chemistry.chemical_compound
Metabolomics
Cadmium Chloride
Solanum lycopersicum
Animals
Asparagine
Food science
Carotenoid
030304 developmental biology
2. Zero hunger
chemistry.chemical_classification
BIOLOGIE VEGETALE
0303 health sciences
Cadmium
Dose-Response Relationship
Drug
Terpenes
Public Health
Environmental and Occupational Health
food and beverages
Environmental Exposure
General Medicine
Hydroponics
Carotenoids
Pollution
Plant Leaves
chemistry
Biochemistry
Tyrosine
Environmental Pollutants
Phytotoxicity
010606 plant biology & botany
Zdroj: Ecotoxicology and Environmental Safety
Ecotoxicology and Environmental Safety, Elsevier, 2010, 73 (8), pp.1965-1974. ⟨10.1016/j.ecoenv.2010.08.014⟩
ISSN: 0147-6513
1090-2414
DOI: 10.1016/j.ecoenv.2010.08.014
Popis: International audience; The response of tomato plants to long-term cadmium exposure was evaluated after a 90-days long culture in hydroponic conditions (0, 20, and 100 μM CdCl2). Cadmium preferentially accumulated in roots, and to a lower extent in upper parts of plants. Absolute quantification of 28 metabolites was obtained through 1H NMR, HPLC-PDA, and colorimetric methods. The principal component analysis showed a clear separation between control and Cd treated samples. Proline and total ascorbate amounts were reduced in Cd-treated leaves, whereas α-tocopherol, asparagine, and tyrosine accumulation increased, principally in 100 μM Cd treated leaves. Carotenoid and chlorophyll contents decreased only in 100 μM Cd-mature-leaves, which correlate with a reduced expression of genes essential for isoprenoid and carotenoid accumulations. Our results show that tomato plants acclimatize during long-term exposure to 20 μM Cd. On the contrary, 100 μM Cd treatment results in drastic physiological and metabolic perturbations leading to plant growth limitation and fruit set abortion.
Databáze: OpenAIRE
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