Interactive effects between supplemental ultraviolet-B radiation and heavy metals on the growth and biochemical characteristics of Spinacia oleracea L
Document title: Interactive effects between supplemental ultraviolet-B radiation and heavy metals on the growth and biochemical characteristics of Spinacia oleracea L
Journal: Brazilian journal of plant physiology
Database: PERIÓDICA
System number: 000276204
ISSN: 1677-0420
Authors: 1
2
Institutions: 1Deemed University, Allahabad Agricultural Institute, Allahabad, Uttar Pradesh. India
2Banaras Hindu University, Department of Botany, Varanasi, Banaras. India
Year:
Season: Abr-Jun
Volumen: 18
Number: 2
Pages: 307-314
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract The impact of supplemental UV-B (sUV-B) radiation and heavy metals: Cd (68 µmol.kg-1 soil) and Ni (68 µmol.kg-1 soil) singly and in combination was studied on photosynthetic and non-photosynthetic pigments, metabolites, enzyme activities, biomass accumulation and the net primary productivity of spinach (Spinacia oleracea L. var. All Green), a common leafy vegetable plant. Both the stresses individually and in combination resulted in the reduction of photosynthetic pigments, ascorbic acid, and catalase activity, whereas a reverse trend was observed for anthocyanin, flavonoids and proline content, lipid peroxidation and peroxidase activity. The interactive effects of both the stresses were, however, less than additive. Combined treatment of sUV-B + Cd was more deleterious as compared to sUV-B + Ni and other individual treatments
Portuguese abstract Estudou-se o impacto de radiação UV-B suplementar (sUV-B) e dos metais pesados Cd (68 µmol.kg-1 solo) e Ni (68 µmol.kg-1 solo), isoladamente ou em combinação, sobre pigmentos fotossintéticos e não fotossintéticos, metabólitos, atividades enzimáticas, acúmulo de biomassa e produtividade primária de espinafre (Spinacia oleracea L. var. All Green). Ambos estresses, individualmente ou em combinação, resultaram na redução dos pigmentos fotossintéticos, ácido ascórbico, e atividade de catalase, sendo que uma tendência oposta foi observada para o conteúdo de antocianina, flavonóides e prolina, peroxidação lipídica e atividade de peroxidase. Os efeitos interativos de ambos estresses foram, no entanto, menos que se fossem aditivos. O tratamento combinado de sUV-B + Cd foi o mais deletério quando comparado com sUV-B + Ni e outros tratamentos individuais
Disciplines: Química,
Agrociencias
Keyword: Bioquímica,
Hortalizas,
Contaminación,
Espinaca,
Cadmio,
Enzimas,
Metales pesados,
Níquel,
Pigmentos,
Radiación ultravioleta,
Spinacia oleracea,
Biomasa
Keyword: Chemistry,
Agricultural sciences,
Biochemistry,
Vegetables,
Spinach,
Cadmium,
Enzymes,
Nickel,
Pigments,
Ultraviolet radiation,
Spinacia oleracea,
Biomass,
Heavy metals
Full text: Texto completo (Ver HTML)