Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8854413 | Ecotoxicology and Environmental Safety | 2018 | 10 Pages |
Abstract
Solidago chilensis Meyen (Asteraceae) is a medicinal important plant with few studies on nutrition and metabolism and none information on cadmium phytotoxicity. The objective of this study was to investigate Cd induced responses on the growth and metabolism in S. chilensis and on arbuscular mycorrhiza (AM). The experiment was carried out in a greenhouse, consisting of a 5 à 4 factorial with five doses of manure (0, 3.5, 7, 14 and 21 g dmâ3) and four doses of cadmium (0, 25, 50 and 75 mg dmâ3) applied to a Dystrophic Ultisol. After 250 days of plant cultivation, biomass, nutrient content, photosynthetic rate, guaiacol peroxidase activity, mycorrhizal colonization, glomalin content, anatomical and ultrastucture were evaluated. Plants were significantly affected by interaction of manure and Cd doses with anatomical, ultrastructural, physiological and nutritional modifications. Manure applied into Cd contaminated soil significantly improved mycorrhizal colonization and glomalin production. The highest organic manure dose (21 g dmâ3) alleviated toxicity symptoms of Cd on S. chilensis.
Keywords
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Environmental Chemistry
Authors
Lidiane Silva Pereira, Romária Pereira de Araújo, Priscila Souza de Oliveira, Leandro Dias da Silva, Patricia Alves Casaes Alves, Valéria Ferreira Fernandes, Eduardo Gross,