Search Results - "Paiva, Élder Antônio Sousa"

Vascular Tissues Distribution Affects Calcium and Calcium Oxalate Crystals in Fruits of Wild Tomato (Lycopersicon pimpinellifolium (L.) Mill.) by Paiva, Élder Antônio Sousa, Figueredo, Cleber Cunha, Martinez, Hermínia Emília Prieto

“…Tomato fruit is an excellent model for evaluating calcium regulation in plants since it expresses symptoms of either calcium deficiency or calcium excess…”
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Unravelling the Homology between Calycine Glands in Malpighiales: New Data from Basal Malpighiaceae by Bonifácio, Stéphani Karoline Vasconcelos, Amorim, André Márcio Araújo, Paiva, Élder Antônio Sousa, Oliveira, Denise Maria Trombert

“…Discussing homology relationships among secretory structures remains a relatively underexplored area in botanical research. These structures are widely…”
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Are calcium oxalate crystals a dynamic calcium store in plants? by Paiva, Elder Antônio Sousa

“…Calcium oxalate (CaOx) crystals occur as intravacuolar deposits in most angiosperm species. Different functions have been attributed to these crystals, some of…”
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Can sieve-element plastids in Panicum maximum (Poaceae) leaves act in the blockage of injured sieve-tube elements? by Paiva, Élder Antônio Sousa, Machado, Silvia Rodrigues

“…The ultrastructural features and the plastid changes caused by sample preparation were studied in sieve elements of Panicum maximum leaves. Samples of expanded…”
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Nectar Secretion of Floral Buds of Tococa guianensis Mediates Interactions With Generalist Ants That Reduce Florivory by Mesquita-Neto, José Neiva, Paiva, Elder Antônio Sousa, Galetto, Leonardo, Schlindwein, Clemens

“…The specialised mutualism between Tococa guianensis and ants housed in its leaf domatia is a well-known example of myrmecophily. A pollination study on this…”
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Ontogenesis, structure and ultrastructure of Hymenaea stigonocarpa (Fabaceae: Caesalpinioideae) colleters by Paiva, Elder Antônio Sousa, Machado, Silvia Rodrigues

“…The genus Hymenaea is characterized by a great diversity of secretory structures, but there are no reports of colleters yet. The objectives of this study are…”
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Adhesive secretion in Schizolobium parahyba (Vell.) Blake (Leguminosae: Caesalpinioideae): histochemical and morpho-functional characterization of this unusual feature in woody plants by Paiva, Elder Antônio Sousa, Oliveira, Denise Maria Trombert, Canaveze, Yve, Machado, Silvia Rodrigues

“…The legume tree Schizolobium parahyba from the Brazilian Atlantic Forest shows young aerial organs covered with a sticky exudate. Aiming to clarify the…”
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Imbibition of Swietenia macrophylla (Meliaceae) Seeds: The Role of Stomata by PAIVA, ÉLDER ANTÔNIO SOUSA, LEMOS-FILHO, JOSÉ PIRES, OLIVEIRA, DENISE MARIA TROMBERT

“…• Background and Aims The occurrence of stomata in seed coats is uncommon and there is limited information about their function(s). The aim of this study was…”
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The influence of light intensity on anatomical structure and pigment contents of Tradescantia pallida (Rose) Hunt. cv. purpurea Boom (Commelinaceae) leaves by Paiva, Élder Antonio Sousa(Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Departamento de Botânica), Isaias, Rosy Mary dos Santos(Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Departamento de Botânica), Vale, Fernando Henrique Aguiar(Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Departamento de Botânica), Queiroz, Cristina Generosa de Senna(Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Departamento de Botânica)

“…The aim of this work was to study the effects of five different light intensities on the anatomical structure and on the pigment contents in leaves of…”
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How does the nectar of stomata-free nectaries cross the cuticle? by Paiva, Elder Antônio Sousa

“…ABSTRACT In many glandular structures, departure from the cell is only one step in the process of exudate release to the plant surface. Here the set of events…”
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Food bodies in Cissus verticillata (Vitaceae): ontogenesis, structure and functional aspects by Paiva, Elder Antônio Sousa, Buono, Rafael Andrade, Lombardi, Julio Antonio

“…BACKGROUND AND AIMS: The distinction between pearl bodies (or pearl glands) and food bodies (FBs) is not clear; neither is our understanding of what these…”
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Occurrence, structure and functional aspects of the colleters of Copaifera langsdorffii Desf. (Fabaceae, Caesalpinioideae) by Paiva, Elder Antônio Sousa

“…Reports concerning colleters in Fabaceae have been scarce, mainly in the Caesalpinioideae subfamily. The present work reports the occurrence, structure, and…”
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Role of intermediary cells in Peltodon radicans (Lamiaceae) in the transfer of calcium and formation of calcium oxalate crystals by Paiva, Elder Antônio Sousa(Universidade Federal de Minas Gerais Instituto de Ciências Biológicas Departamento de Botânica), Machado, Silvia Rodrigues(Universidade Estadual Paulista Instituto de Biociências Departamento de Botânica)

“…With the objective of studying the connection between calcium oxalate crystals formation and the phloem, fragments of leaves of Peltodon radicans Pohl…”
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Ultrastructure and post-floral secretion of the pericarpial nectaries of Erythrina speciosa (Fabaceae) by Paiva, Elder Antônio Sousa

“…Background and Aims The occurrence of nectaries in fruits is restricted to a minority of plant families and consistent reports of their occurrence are not…”
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Osmophores of Caryocar brasiliense (Caryocaraceae): a particular structure of the androecium that releases an unusual scent by Paiva, Elder Antônio Sousa, Dötterl, Stefan, De-Paula, Orlando Cavalari, Schlindwein, Clemens, Souto, Letícia Silva, Vitarelli, Narah Costa, da Silva, Claudia Inês, Mateus, Sidnei, Alves-dos-Santos, Isabel, Oliveira, Denise Maria Trombert

“…Caryocar brasiliense is a flagship species of the Brazilian Cerrado. It produces flowers with a strong peculiar scent, which are pollinated by bats and…”
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Colleters in Cariniana estrellensis (Lecythidaceae): structure, secretion and evidences for young leaf protection by Paiva, Elder Antônio Sousa

“…The occurrence of colleters in Eudicotyledons is probably significantly underestimated as a consequence of the scarcity of structural studies directed towards…”
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Floral resins of Philodendron adamantinum (Araceae): secretion, release and synchrony with pollinators by Gonçalves-Souza, Patrícia, Schlindwein, Clemens, Paiva, Elder Antonio Sousa

“…ABSTRACT Philodendron is the only genus of Araceae in which resin release occurs in the inflorescence. The resinous secretion adheres to the smooth body…”
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First Report of Colleters in Araceae: A Case Study in Anthurium andraeanum Reveals Diverse Mucilage Glands Associated with the Developing Shoot by Pereira-Silva, Carlos Gabriel, Ballego-Campos, Igor, Sakuragui, Cássia Mônica, Gonçalves, Eduardo Gomes, Paiva, Elder Antônio Sousa

“…Araceae comprises a diverse group of plants that grow in various habitats, ranging from submerged aquatics to lithophytes. Thus, aroids are likely to show…”
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How do secretory products cross the plant cell wall to be released? A new hypothesis involving cyclic mechanical actions of the protoplast by Paiva, Elder Antônio Sousa

“…In plants, the products of secretory activity leave the protoplast and cross the plasma membrane by means of transporters, fusion with membranous vesicles or,…”
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Glandular trichomes in Connarus suberosus (Connaraceae): distribution, structural organization and probable functions by Denardi, João Donizete, Oliveira, Denise Maria Trombert, Paiva, Elder Antônio Sousa

“…Connarus suberosus is a typical species of the Brazilian Cerrado biome, and its inflorescences and young vegetative branches are densely covered by dendritic…”
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