XXXX accumulation in Brassicaceae seedlings and its effects on growth and plant anatomy.

@entity39 @entity1184 @entity5598 @entity24808 @entity3494 @entity13344
UNASSIGNED: We wished to evaluate the effects of @entity3494 on the morphology and anatomy of @entity5598 , Raphanus sativus, @entity13344 , @entity5598 . capitata and @entity5598 . italica. Seeds were subjected to concentrations 0  M, 250  M, 350  M and 450  M @entity3494 in the form of @entity24808 ( @entity24808 ) during 12 days. All species accumulated more @entity3494 in the roots than in the shoots, except for @entity5598 . capitata. There was no difference of translocation factor between species and treatments. Growth decrease was observed in roots of @entity5598 and R. sativus, and in shoots of R. sativus and @entity5598 . italica. All species presented anatomical alterations in the roots, such as: cell @entity1184 , protoplast retraction, cellular plasmolysis, and @entity39 regions. @entity13344 presented collapse and @entity1184 of cells from the leaf blade tissues. Quantitative anatomical analyses performed on the root and leaves of @entity5598 and @entity13344 revealed that @entity3494 interfered on the root vascular cylinder diameter and on height of epidermal cells of the adaxial leaf surface of both species. We concluded that @entity3494 was absorbed from the culture medium and induced alterations both on root and shoot growth of the seedlings. Retention of @entity3494 within the root was responsible for major damage in this organ.
