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| Martins,Maria Bernadete Gonçalves. |
| O presente trabalho tem como objetivo realizar um estudo de anatomia foliar por meio de microscopia óptica e de microscopia eletrônica de varredura em Mentha spicata L. e Mentha spicata X suaveolens, caracterizando histologicamente a lâmina foliar. Secções transversais e paradérmicas da região mediana do limbo foliar mostraram a presença de epiderme unisseriada, coberta por uma fina camada de cutícula, apresentando tricomas glandulares do tipo capitado e peltado e não glandulares unisseriados multicelulares, não ramificados. O mesofilo de ambas as espécies é dorsiventral, com parênquima paliçádico uniestratificado, com células alongadas e rico em inclusões citoplasmáticas. O parênquima lacunoso é formado por três a quatro camadas de células irregulares. Os... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mentha; Tricomas; Anatomia foliar. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052002000300002 |
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| Martins,Maria Bernadete Gonçalves; Zieri,Rodrigo. |
| Rubber trees are easily recognizable for being woody, medium to large-sized plants, having a typical deciduous behavior, and especially because they produce latex. The purpose of this work was to study the anatomy and morphology of the leaf, comparing rubber tree &91;Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.&93; clones (RRIM 600 and GT 1) grafted on the same root stock (Tjir 1), grown under the same climatic and soil conditions. This study allowed clones to be differentiated and also provided information on the location and disposition of laticifers in the leaf tissue. Cross sections of the mesophyll, center ribbing and petiole regions were made, followed by usual permanent histological blade methods. Biometric analyses of tissue... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hevea brasiliensis; Leaf; Clones. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400015 |
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| Martins,Raphael Gonçalves; Martins,Maria Bernadete Gonçalves; Silva,João Marcelo; Pereira,Marcelo Andrade; Appezzato-da-Glória,Beatriz; Castro,Paulo Roberto de Camargo e. |
| Thiamethoxam is a systemic insecticide from the neonicotinoid group, nitroguanidin family which affects the nicotinic receptor acetyl choline in the insect membrane, wounding the nervous system and causing the death of the insect. It was used with success in the control of initial pests of several crops. It was considered that thiamethoxam has a bioactivator effect, because in the absence of insects promoted increase in vigor, development and productivity of crops. This work was carried out to verify if thiamethoxam causes histological changes in sugarcane roots. In this work, it was used optical microscopy, images arrest, tissue biometrics and statistical analysis, in young roots of sugarcane RB 83 5486 after the treatments with different thiamethoxam... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saccharum spp.; Anatomy; Root system. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012001100005 |
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