Consulta: creatorFacets:"Mariath,Jorge Ernesto de Araujo"
Registros recuperados: 5
Data/hora: 06/06/2024 02:48:10

Immunocytochemistry of the mucilage cells of Araucaria angustifolia (Bertol.) Kuntze (Araucariaceae)
Provedor de dados: 88
Autores: Mastroberti,Alexandra Antunes; Mariath,Jorge Ernesto de Araujo.
The use of monoclonal antibodies for specific pectic epitopes is an important tool in the study of the cell wall. Throughout the development of mucilage cells of Araucaria angustifolia (Bertol.) Kuntze, a gradient of distribution was observed in relation to the pectic de-esterification, as well as to the increase of galactan and arabinan epitope distribution, and to the reduction of arabinogalactans proteins (AGPs) epitope at maturity. AGP and methyl-esterified homogalacturonan (HGA) were present in the mucilage. Galactans and arabinans were also observed in the mucilage, though with weak labelling. Degradation of AGP in the maturity of mucilage cells, in cell wall, as well as in the secretion, could be involved in the programmed cell death (PCD)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araucaria angustifolia; Cell development; Cell wall; Monoclonal antibodies; Mucilage cells; Pectin.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000100002

Synflorescence morphology of species of Typha L. (Typhaceae): anatomical and ontogenetic bases for taxonomic applications
Provedor de dados: 39
Autores: Carvalho,Jordano Dorval Tavares de; Mariath,Jorge Ernesto de Araujo.
ABSTRACT The inflorescence of plants of the genus Typha L. consists of a polytelic system with the fertile region containing staminate flowers in the terminal portion and pistillate flowers in the basal portion. Although some useful morphological information has been provided to characterize species of the genus, various divergent typologies have arisen due to mistaken interpretations that ignore the different degrees of branching in this indeterminate system. The present study aimed to identify structural homologies by comparing the morphology and ontogeny of the synflorescences of Typha domingensis, T. latifolia and their putative hybrid, T. x provincialis, using standard micro-techniques for light and electron microscopy. Analysis revealed that the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Compound spike; Inflorescence; Panicle; Prophyll; Raceme; Synflorescence; Typha.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000400672

Amido no megagametófito de Araucaria angustifolia (Bert.) O. Ktze: degradação durante a germinação e desenvolvimento do esporófito
Provedor de dados: 39
Autores: Rosado,Rosa Maris; Ferreira,Alfredo Gui; Mariath,Jorge Ernesto de Araujo; Cocucci,Alfredo Elio.
O pinheiro brasileiro possui um diásporo de grandes dimensões, o pinhão, rico em reservas amiláceas. A mobilização dessas reservas pelo embrião foi quantificada em secções transversais do megagametófito, em cinco estágios de desenvolvimento da plântula, sob dois tratamentos, na luz e no escuro. Na luz, o consumo das reservas do megagametófito pela plântula é mais rápido do que no escuro e, existe uma tendência ao consumo do amido realizar-se primeiro na região do megagametófito próxima ao embrião.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Degradação do amido; Pinheiro do paraná; Semente; Anatomia; Luz/escuro.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061994000100004

Morphoanatomy and ontogeny of fruit in Bromeliaceae species
Provedor de dados: 39
Autores: Fagundes,Natividad Ferreira; Mariath,Jorge Ernesto de Araujo.
This study aims to give an overall view of fruit structure in Bromeliaceae, since these studies are extremely scarce in this family, showing the morphology, anatomy and ontogeny of fruits of six species belonging to six different genera, representing three subfamilies. All species studied have a tricarpellary and trilocular ovary, with an obturator covering the placental region. Dyckia maritima, Pitcairnia flammea, Tillandsia aeranthos and Vriesea carinata have capsular fruits (septicidal or biscidal), characterized mainly by the presence of macrosclereids in the exocarp or endocarp, fibers in the ventral region of the carpels, six dehiscence lines and three vascular bundles in each carpel. Aechmea calyculata and Billbergia nutans have fruits classified as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anatomy; Bromeliaceae; Development; Ovary; Pericarp.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300020

Populational Diversity on Leaf Morphology of Maté (Ilex paraguariensis A. St.-Hil., Aquifoliaceae)
Provedor de dados: 52
Autores: Coelho,Geraldo Ceni; Mariath,Jorge Ernesto de Araujo; Schenkel,Eloir Paulo.
Maté (Ilex paraguariensis A. St.-Hil.) is a native plant from southern Brazil and a raw material for beverages. To research on population variability of the species, we compared leaf morphology of three populations from Mato Grosso do Sul (MS), Paraná (PR) and Santa Catarina (SC) States. Lamina measurements included area (A), perimeter (P), length (l), maximum width (w), distance between maximum width and lamina base (dw), base angle (BÂ), biomass (m), and the indexes: relative distance of maximum width (dw/l), ratio length/width (l/w), relative perimeter (RP= P / (l + w), rectangular area index (RAI = A / (l x w)) and leaf mass/area (m/A). We verified differences among populations on A (MS&lt;PR=SC), l (MS&lt;PR=SC), w (MS&lt;PR=SC), RAI (MS=PR&gt;SC) and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ilex paraguariensis; Aquifoliaceae; Plant morphology; Leaf morphology; Population variability; Rectangular area index.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100008