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DC Field | Value | Language |
---|---|---|
dc.creator | Pereira, Marcio Paulo | - |
dc.creator | Corrêa, Felipe Fogaroli | - |
dc.creator | Castro, Evaristo Mauro de | - |
dc.creator | Oliveira, Jean Paulo Vitor de | - |
dc.creator | Pereira, Fabricio José | - |
dc.date.accessioned | 2018-08-10T17:06:27Z | - |
dc.date.available | 2018-08-10T17:06:27Z | - |
dc.date.issued | 2017-11 | - |
dc.identifier.citation | PEREIRA, M. P. et al. Leaf ontogeny of Schinus molle L. plants under cadmium contamination: the meristematic origin of leaf structural changes. Protoplasma, [S.l.], v. 254, n. 6, p. 2117–2126, Nov. 2017. | pt_BR |
dc.identifier.uri | https://link.springer.com/article/10.1007/s00709-017-1103-2 | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/29944 | - |
dc.description.abstract | Previous works show the development of thicker leaves on tolerant plants growing under cadmium (Cd2+) contamination. The aim of this study was to evaluate the Cd2+ effects on the leaf meristems of the tolerant species Schinus molle. Plants were grown in nutrient solution containing 0, 10, and 50 μM of Cd2+. Anatomical analysis was performed on leaf primordia sampled at regular time intervals. Under the lowest Cd2+ level (10 μM), increased ground meristem thickness, diameter of the cells, cell elongation rate, and leaf dry mass were found. However, 50 μM of Cd2+ reduced all these variables. In addition, the ground meristem cells became larger when exposed to any Cd2+ level. The epidermis, palisade parenchyma, and vascular tissues developed earlier in Cd2+-exposed leaves. The modifications found on the ground meristem may be related to the development of thicker leaves on S. molle plants exposed to low Cd2+ levels. Furthermore, older leaves showed higher Cd2+ content when compared to the younger ones, preventing the Cd2+ toxicity to these leaves. Thus, low Cd2+ concentrations change the ground meristem structure and function reflecting on the development of thicker and enhanced leaves. | pt_BR |
dc.language | en_US | pt_BR |
dc.publisher | Springer | pt_BR |
dc.rights | restrictAccess | pt_BR |
dc.source | Protoplasma | pt_BR |
dc.subject | Pepper tree | pt_BR |
dc.subject | Leaf primordia | pt_BR |
dc.subject | Leaf meristems | pt_BR |
dc.subject | Cell elongation rate | pt_BR |
dc.subject | Heavy metal | pt_BR |
dc.title | Leaf ontogeny of Schinus molle L. plants under cadmium contamination: the meristematic origin of leaf structural changes | pt_BR |
dc.type | Artigo | pt_BR |
Appears in Collections: | DBI - Artigos publicados em periódicos |
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