Bundle Sheath
Mostrando 1-12 de 197 artigos, teses e dissertações.
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1. Leaf structural traits of three species of Qualea Mart. (Vochysiaceae) in a cerradão area in the Cerrado-Amazonian Forest transition
Resumo Qualea é um gênero comumente encontrado em diferentes fisionomias do cerrado brasileiro, crescendo em ecossistemas abertos até áreas florestais fechadas, sujeitos à alta irradiância, incêndios, baixa disponibilidade de nutrientes e deficit hídrico sazonal. Comparam-se aqui, atributos estruturais foliares de Qualea grandiflora Mart., Qualea mul
Ciênc. Florest.. Publicado em: 02/12/2019
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2. Occurrence of homobaric and heterobaric leaves in two forest types of southern Brazil
ABSTRACT In ombrophilous forests, light stratification provokes different adjustments by plants for better use of the environmental conditions of each stratum. Among the morphological traits that vary with strata, the presence of bundle sheath extensions (BSEs) is related to water transport, photosynthesis, and leaf mechanical support and classifies leaves a
Acta Bot. Bras.. Publicado em: 2016-06
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3. An Overview About Ultrastructure of Kranz Anatomy in Cyperaceae (Poales)
Abstract An overview about ultrastructure of Kranz anatomy in Cyperaceae (Poales) - The ultrastructure of the Kranz tissues in Cyperaceae species with the four types of Kranz anatomy (chlorocyperoid, eleocharoid, fimbristyloid and rhynchosporoid) was studied and compared with species already described in the literature, with the goal verifying the occurrence
Rodriguésia. Publicado em: 2015-06
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4. Anatomical variations in scapes of Eleocharis minima Kunth (Cyperaceae, Poales) - amphibian and Kranz species
Abstract In Cyperaceae about 1/3 of the species have Kranz anatomy and some species of Eleocharis can either present Kranzanatomy or not according to the environmental conditions, whether terrestrial (emerged) or aquatic (partly or fully submerged). Eleocharis minima has emerged and submerged scapes in the same individual. To identify the possible difference
Rodriguésia. Publicado em: 2015-06
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5. Anatomical investigations of Piper amalago (jaborandi-manso) for the quality control
Abstract Piper amalago L., Piperaceae, popularly known as jaborandi-manso, is a shrub that spans a height of 2–7 m. It can be found in the regions of Southern America downward up to the south of Brazil. Traditionally it is used to treat digestive problems, heart problems, and burns. This study aims to conduct an anatomical investigation and analysis of the
Rev. bras. farmacogn.. Publicado em: 2015-04
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6. Centrolobium tomentosum: macro-and microscopic diagnosis of the leaf and stem
Centrolobium tomentosum Guillemin ex Benth., Fabaceae, known as "araribá-rosa", is a large tree that is widespread throughout Brazil. The bark of its stem is used in folk medicine as an astringent and the leaves are employed as a poultice for wounds and bruises. The aim of this study was to contribute to the pharmacognostic quality control of this medicinal
Revista Brasileira de Farmacognosia. Publicado em: 29/11/2011
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7. Morpho-anatomical study of the leaf and stem of pau-alecrim: Holocalyx balansae
Holocalyx balansae Micheli belongs to the Fabaceae family and is called pau-alecrim in Portuguese. In folk medicine, it is indicated to treat heart, hepatic and digestive upsets, as well as being considered anti-septic and diaphoretic. This work aimed to study the morpho-anatomy of the leaf and stem of this native medicinal species, in order to increase know
Revista Brasileira de Farmacognosia. Publicado em: 04/02/2011
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8. Estudos anatômicos, ultra-estruturais e bioquímicos da síndrome Kranz em folhas de duas espécies de Gomphrena L. (Amaranthaceae) / Anatomical, ultrastructural and biochemical surveys in leaves to two Gomphrena L. species (Amaranthaceae)
A síndrome Kranz é um conjunto de características anatômicas, ultra-estruturais e bioquímicas que culminam na realização da fotossíntese C4. Tal síndrome apresenta grande diversidade dentre as Angiospermas, tornando-se conveniente seu estudo em todos os níveis acima citados para a completa caracterização da mesma. No presente trabalho foi investi
Publicado em: 2010
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9. Biossistematica das especies do complexo Anemopaegma arvense (Vell.) Stellf. ex de Souza (Bignoniaceae, Bignonieae) : aspectos anatomicos, citologicos, moleculares, morfologicos e reprodutivos / Biossystematics of the Anemopaegma arvense (Vell.) Stellf. ex de Souza complex (Bignoniaceae, Bignonieae) : anatomical, cytological, molecular, morphological and reproductive aspects
Anemopaegma arvense complex is constituted by species and varieties of difficult delimiting. Taxonomists opinions based upon morphologic features are controversial as to considering them either an only highly polymorphic species or separating them into different taxa. In order to help with the circumscription of such taxa, a biosystematic study was conducted
Publicado em: 2009
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10. Moraceae Gaudich. de Viçosa, Minas Gerais, Brasil: florística e anatomia foliar de Ficus mexiae Standl / Moraceae Gaudich. of Viçosa, Minas Gerais, Brazil: floristic and leaf anatomy of Ficus mexiae Standl
The present work consists of the floristic study of Moraceae species in Viçosa, of the leaf anatomy, and the histochemical characterization of Ficus mexiae Standl., comparing with the anatomic data in the literature about F. enormis (Miq.) Miq., a species that is similar to F. mexiae. Viçosa is located in the southeastern Brazil, in the state of Minas Gera
Publicado em: 2009
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11. The role of the endodermis and pericycle in the formation of primary tissues in Commelinaceae (Monocotyledons) / Estudos em Commelinaceae (Monocotiledôneas): o papel da endoderme e do periciclo na formação do corpo primário
The aim of this work is to show the meristematic activity of the endodermis in roots of five species of Commelinaceae (Commelina erecta, Floscopa glabrata, Dichorisandra tyrsiflora, Tradescantia spathacea e T. zebrina). In all species was observed the initial endodermis suffered several periclinal divisions, originating the radiate layers of the cortex cells
Publicado em: 2008
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12. Effect of homeopathic preparation on yellow nutsege (Cyperus rotundus L.) plants / Avaliação de preparados homeopáticos em tiririca (Cyperus rotundus L.)
The objective of the present work was to evaluate the effect of homeopathic preparations of yellow nutsege leaves on yellow nutsege plants. The experiment was carried out in a randomized block design with 5 treatments, consisting of 4 homeopathic preparations of yellow nutsege leaves at dynamizations 3CH, 6CH, 7CH and 11CH, distilled water as control and 4 r
Publicado em: 2008