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| Jesus, Valquíria Aparecida Mendes de; Braccini, Alessandro Lucca; Souza, Luiz Antonio de; Moscheta, Ismar Sebastião; Mariucci, Giovanna Emanuelle Goncalves; Santos, Fábio Lúcio. |
| Calophyllum brasiliense Cambess. is a tree species that is presented as an alternative to replace endangered species of hardwood. The morphology and anatomy of the seedling of this species is the object of the present study. Seedlings at different stages of development were obtained in greenhouse and analyzed fresh and fixed in FAA (Formalin-Acetic-Alcohol) 50. The anatomical analysis was done by the freehand and microtome sections, according to standard techniques in plant anatomy. The seedling and/or tirodendro is cryptocotylar and hypogeal, has cataphylls, and presents eophylls and metaphylls simple with venation pinnate craspedodromous simple. The root is polyarch, the hypocotyl is very short, the cotyledons have an oily and starchy reserve, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7; 2.03.02.00-2 seedling axis; Cotyledon; Eophyll; Calophyllum; Structure Botânica; Anatomia Vegetal; Morfologia Vegetal. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/21585 |
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| Rossi, Zélia Terezinha Teixeira; Castro, Evaristo Mauro de; Pereira, Giuslan Carvalho; Barbosa, João Paulo Rodrigues Alves Delfino; Carvalho, Graziele Wolff de Almeida; Rossi, Marco Aurélio de Lima Silva; Pereira, Fabrício José. |
| Fluorides released during the manufacture of aluminum, fertilizers, glass and ceramics are considered to be highly toxic to plants, causing damages in relatively small concentrations. This study aimed to evaluate fluoride (F) accumulation and its effects on Vitex polygama Cham. (Verbenaceae) exposed to simulated rain containing potassium fluoride in concentrations of 5, 10, 15 and 20 mg L-1. Vitex polygama presented no visual symptoms of foliar injury and accumulated a relatively small amount of F-, significant only for the treatments with higher concentrations of the pollutant. F- promoted an increase in non-photochemical quenching (qN) and in the coefficient due to non-photochemical extinction (NPQ), which indicates higher dissipation of radiant energy... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7; 2.03.03.00-9 chlorophyll a fluorescence; Potassium fluoride; Scanning electron microscopy; Transmission electron microscopy; Biomonitoring studies Botânica; Anatomia Vegetal; Fisiologia Vegetal. |
| Ano: 2016 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/31400 |
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