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Physiological and ultra-structural changes in Brassica napus seedlings induced by cadmium stress

Ali, B., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Qian, P., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Jin, R., Zhejiang University, Hangzhou (China). Agricultural Experiment Station ; Ali, S., Government College University, Faisalabad (Pakistan). Dept. of Environmental Sciences ; Khan, M., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Aziz, R., Zhejiang University, Hangzhou (China). Coll. of Environment and Resource Science ; Tian, T ; Zhou, W., Zhejiang University, Hangzhou (China). Inst. of Crop Science

Biologia plantarum, 2014-03, Vol.58 (1), p.131-138 [Periódico revisado por pares]

Dordrecht: Springer-Verlag

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Título:
Physiological and ultra-structural changes in Brassica napus seedlings induced by cadmium stress
Autor: Ali, B., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Qian, P., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Jin, R., Zhejiang University, Hangzhou (China). Agricultural Experiment Station ; Ali, S., Government College University, Faisalabad (Pakistan). Dept. of Environmental Sciences ; Khan, M., Zhejiang University, Hangzhou (China). Inst. of Crop Science ; Aziz, R., Zhejiang University, Hangzhou (China). Coll. of Environment and Resource Science ; Tian, T ; Zhou, W., Zhejiang University, Hangzhou (China). Inst. of Crop Science
Assuntos: ACTIVIDAD ENZIMATICA ; ACTIVITE ENZYMATIQUE ; antioxidant activity ; BIOMASA ; BIOMASS ; BIOMASSE ; Biomedical and Life Sciences ; BRASSICA NAPUS ; BROTES ; CADMIO ; CADMIUM ; CAROTENOIDE ; CAROTENOIDES ; CAROTENOIDS ; CATALASA ; CATALASE ; cell walls ; CHLOROPHYLLE ; CHLOROPHYLLS ; chloroplasts ; CLOROFILAS ; cultivars ; DOSAGE EFFECTS ; EFECTOS DE DOSIFICACION ; EFFET DOSE ; ENZYME ACTIVITY ; enzymes ; ESTRES ; EVALUACION ; EVALUATION ; FEUILLE ; GERMINACION ; GERMINATION ; GLUTATHION REDUCTASE ; GLUTATHIONE REDUCTASE ; GLUTATION REDUCTASA ; GRAINE ; GROWTH RATE ; HIPOCOTILOS ; HOJAS ; HYDROGEN PEROXIDE ; HYPOCOTYLE ; HYPOCOTYLS ; INDICE DE CRECIMIENTO ; LARGURA ; LEAVES ; LENGTH ; Life Sciences ; lipid bodies ; LONGUEUR ; MALONDIALDEHYDE ; MESOFILO ; MESOPHYLL ; MESOPHYLLE ; MICROSCOPIA ; MICROSCOPIE ; MICROSCOPY ; mitochondria ; Original Papers ; OXIDACION ; OXIDATION ; OXYDATION ; PEROXIDASAS ; PEROXIDASES ; PEROXIDO DE HIDROGENO ; PEROXYDASE ; PEROXYDE D'HYDROGENE ; pigments ; Plant Sciences ; PLANTULAS ; PLANTULE ; POUSSE ; PROTEINAS ; PROTEINE ; PROTEINS ; RACINE ; RADICLE ; RADICULA ; RADICULE ; RAICES ; reactive oxygen species ; ROOTS ; seedling growth ; SEEDLINGS ; SEEDS ; SEMILLA ; SHOOTS ; starch granules ; STRESS ; SUPEROXIDE DISMUTASE ; SUPEROXIDO DISMUTASA ; SUPEROXYDE DISMUTASE ; TAUX DE CROISSANCE ; ULTAESTRUCTURA ; ULTRASTRUCTURE ; vacuoles ; VARIEDADES ; VARIETE ; VARIETIES
É parte de: Biologia plantarum, 2014-03, Vol.58 (1), p.131-138
Notas: H50
F62
http://dx.doi.org/10.1007/s10535-013-0358-5
Descrição: The effects of cadmium on physiological and ultrastructural characteristics were evaluated in 6-d-old seedlings of two Brassica napus L. cultivars Zheda 619 and ZS 758. Results show that Cd at lower concentration (100 microM) stimulated the seedling growth but at higher concentration (500 microM) inhibited the growth of both cultivars, decreased content of photosynthetic pigments, activities of antioxidant enzymes, and increased the content of malondialdehyde and reactive oxygen species. Cd content in different parts of seedlings was higher in ZS 758 than in Zheda 619. Electron micrographs illustrated that 500 microM Cd severely damaged the leaf and root tip cells of both cultivars. Under Cd stress, the size and number of starch grains, plastoglobuli, and lipid bodies in the chloroplasts increased. In the root tip cells, enlarged vacuoles, diffused cell walls, and undeveloped mitochondria were detected.
Editor: Dordrecht: Springer-Verlag
Idioma: Inglês

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Physiological and ultra-structural changes in Brassica napus seedlings induced by cadmium stress

Dordrecht: Springer-Verlag

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