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| Cipriani,Henrique Nery; Dias,Luiz Eduardo; Costa,Maurício Dutra; Campos,Naiara Viana; Azevedo,Aristéa Alves; Gomes,Roberto Junio; Fialho,Izabela Ferreira; Amezquita,Sandra Patrícia Montealegre. |
| Acacia mangium and Mimosa caesalpiniaefolia are fast-growing woody fabaceous species that might be suitable for phytoremediation of arsenic (As)-contaminated sites. To date, few studies on their tolerance to As toxicity have been published. Therefore, this study assessed As toxicity symptoms in A. mangium and M. caesalpiniaefolia seedlings under As stress in a greenhouse. Seedlings of Acacia mangium and M. caesalpiniaefolia were grown for 120 d in an Oxisol-sand mixture with 0, 50, 100, 200, and 400 mg kg-1 As, in four replications in four randomized blocks. The plants were assessed for visible toxicity symptoms, dry matter production, shoot/root ratio, root anatomy and As uptake. Analyses of variance and regression showed that the growth of A. mangium and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arsenate; Heavy metals; Phytoremediation; Root anatomy; Soil contamination. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832013000500031 |
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| Chaves,Andréa; Pedrosa,Elvira Maria Régis; Pimentel,Rejane Magalhães de Mendonça; Coelho,Rildo Sartori Barbosa; Guimarães,Lílian Margarete Paes; Maranhão,Sandra Roberta Vaz Lira. |
| The effects of Coda Radimax (CR), Coda Humus-PK (CH) and Coda Vit (CV) on the induction of resistance for Meloidogyne incognita in sugarcane (Saccharum sp.) varieties (RB92579, RB863129, RB867515) through nematode reproduction, plant development and root anatomy analysis, emphasizing the differences of the lignin deposition, and cortex-vascular cylinder proportions were investigated. In 90 days after inoculation with eggs of M. incognita, CR reduced the number of eggs per root system in all the sugarcane varieties; CH and CV reduced eggs density in RB867515; CR increased stalk number in RB92579 and fresh weight of shoots in RB863129 and RB92579; CH increased plant height in RB92579 and fresh weight of shoots in RB92579 and RB867515, CV affected fresh weigh... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Phosphites; Root-knot nematode; Root anatomy; Meloidogyne. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000600011 |
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| Oliveira,Virginia del Carmem; Sajo,Maria das Graças. |
| Studies on the root anatomy of nine Orchidaceae species presented a multisseriated velamen, a parenchymatous cortex and a definided endodermis, in all the studied species (Catasetum fimbriatum Lindl., Dichaea bryophila Rchb. f., Encyclia calamara(Lindl.) Pabst, Epidendrum campestre Lindl., Epidendrum secundum Jacq., Miltonia flavescens Lindl., Pleurothallis smithiana Lindl., Stanhopea lietzei (Regel) Schltr. and Vanda tricolor Lindl.) Structural characters, which could be considered root adaptations to an epiphytic habit, were also common for all species. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Root anatomy; Orchidaceae; Ephiphytism; Structural characters. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000400005 |
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