Arsenic accumulation in Brassicaceae seedlings and its effects on growth and plant anatomy

dc.creatorFreitas-Silva, Larisse de
dc.creatorAraújo, Talita Oliveira de
dc.creatorSilva, Luzimar Campos da
dc.creatorOliveira, Juraci Alves de
dc.creatorAraujo, João Marcos de
dc.date2018-04-26T13:59:39Z
dc.date2018-04-26T13:59:39Z
dc.date2015-10-02
dc.date.accessioned2023-09-27T22:18:43Z
dc.date.available2023-09-27T22:18:43Z
dc.identifier01476513
dc.identifierhttps://doi.org/10.1016/j.ecoenv.2015.09.028
dc.identifierhttp://www.locus.ufv.br/handle/123456789/19154
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8973484
dc.descriptionWe wished to evaluate the effects of arsenic on the morphology and anatomy of Brassica oleracea, Raphanus sativus, Brassica juncea, Brassica oleracea var. capitata and Brassica oleracea var. italica. Seeds were subjected to concentrations 0 µM, 250 µM, 350 µM and 450 µM arsenic in the form of sodium arsenate (Na2HAsO4·7H2O) during 12 days. All species accumulated more arsenic in the roots than in the shoots, except for B. oleracea var. capitata. There was no difference of translocation factor between species and treatments. Growth decrease was observed in roots of B. oleracea and R. sativus, and in shoots of R. sativus and B. oleracea var. italica. All species presented anatomical alterations in the roots, such as: cell hypertrophy, protoplast retraction, cellular plasmolysis, and necrotic regions. B. juncea presented collapse and hypertrophy of cells from the leaf blade tissues. Quantitative anatomical analyses performed on the root and leaves of B. oleracea and B. juncea revealed that arsenic interfered on the root vascular cylinder diameter and on height of epidermal cells of the adaxial leaf surface of both species. We concluded that arsenic was absorbed from the culture medium and induced alterations both on root and shoot growth of the seedlings. Retention of arsenic within the root was responsible for major damage in this organ
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherEcotoxicology and Environmental Safety
dc.relationv. 124, p. 1-9, February 2016
dc.rightsElsevier Inc.
dc.subjectBrassica oleracea L.
dc.subjectRaphanus sativus L.
dc.subjectBrassica juncea (L.) Czern.
dc.subjectBrassica oleracea L. var. capitata L.
dc.subjectBrassica oleracea L. var. italica Plenck
dc.subjectLight microscopy
dc.titleArsenic accumulation in Brassicaceae seedlings and its effects on growth and plant anatomy
dc.typeArtigo


Este ítem pertenece a la siguiente institución