Elimar Lima - Academia.edu (original) (raw)
Papers by Elimar Lima
Biological spectrum and dispersal syndromes in an area of the semi-arid region of north-eastern B... more Biological spectrum and dispersal syndromes in an area of the semi-arid region of north-eastern Brazil
Botanical Journal of the Linnean Society, 2018
The flowers of most Anacardiaceae have a floral nectary disk producing nectar rich in sugars. How... more The flowers of most Anacardiaceae have a floral nectary disk producing nectar rich in sugars. However, a recent study demonstrated that their nectaries might also produce other substances, including lipids and phenolic compounds. To explore the diversity of floral nectary production and (ultra)structure, and their potential for the systematics of Anacardiaceae, we studied seven genera and 13 species from the two subfamilies. We used spectrophotometry to identify sugars and histochemical tests for other substances, and electron and brightfield microscopy to study nectary (ultra)structure and secretory pathways. The composition of sugars and other substances can vary between closely related species and be more similar in species from different subfamilies, being of limited value for the systematics of the family. The general morphology and structure of the floral nectary and their secretory pathways appear to be conservative in the family, and, like the production of mixed secretions, they might be plesiomorphic. Three morphological types of floral nectaries are defined for the family: nectariferous disk with papillose (1) or smooth epidermis-type (2) and trichomatous-type (3). The secretions may be released both by granulocrine and eccrine mechanisms and exuded through nectarostomata or the cuticle. Further studies are needed to better understand their evolutionary and ecological implications in Anacardiaceae and other sapindalean lineages.
![Research paper thumbnail of {"__content__"=>"Osmophores and floral fragrance in and (Anacardiaceae): an overlooked secretory structure in Sapindales.", "i"=>[{"__content__"=>"Anacardium humile"}, {"__content__"=>"Mangifera indica"}]}](https://attachments.academia-assets.com/84895213/thumbnails/1.jpg)
](AoB PLANTS, 2018
Flowers of Anacardiaceae and other Sapindales typically produce nectar, but scent, often associat... more Flowers of Anacardiaceae and other Sapindales typically produce nectar, but scent, often associated with a reward for pollinators, has surprisingly been mentioned only rarely for members of the family and order. However, flowers of and produce a strong sweet scent. The origin and composition of these floral scents is the subject of this study. Screening of potential osmophores on the petals and investigations of their anatomy were carried out by light, scanning and transmission electron microscopy. The composition of the floral fragrance was characterized by gas chromatography-mass spectrometry. In both species, the base of the adaxial side of each petal revealed specialized secretory epidermal cells which are essentially similar in structure and distinct from all other neighbouring cells. These cells also showed evidence of granulocrine secretory mechanisms and slight specific variations in their subcellular apparatus coinciding with the respective composition of the floral fragran...
Acta Scientiarum. Biological Sciences, 2015
eduep.uepb.edu.br
... José Iranildo Miranda de Melo 1,2*; Fernanda Kelly Gomes da Silva 1; Maria Betânia ... Gonçal... more ... José Iranildo Miranda de Melo 1,2*; Fernanda Kelly Gomes da Silva 1; Maria Betânia ... Gonçalves 1; Elimar Alves de Lima 1; Leidson Allan Ferreira de Lucena 1; Hermes de ... Organizado [por] Mascarenhas, JC; Beltrão, BA; Souza-Junior, LC; Morais, F.; Mendes, VA; Miranda, JLF ...
Rodriguésia, 2013
A Área de Proteção Ambiental (APA) do Cariri está localizada entre os municípios de Boa Vista e C... more A Área de Proteção Ambiental (APA) do Cariri está localizada entre os municípios de Boa Vista e Cabaceiras, estado da Paraíba, Nordeste do Brasil. Esta APA apresenta microhabitats variados, dentre os quais se destacam os corpos aquáticos. O presente estudo compreende o levantamento das angiospermas aquáticas na APA do Cariri, onde foram registradas 29 espécies distribuídas em 22 gêneros e 14 famílias, sendo Cyperaceae a que apresentou maior riqueza específica (nove spp.). Nesse trabalho são apresentadas descrições, ilustrações, dados de distribuição, floração e/ou frutificação, além de uma chave de identificação para as espécies registradas na APA.
As condicoes ambientais de uma area influenciam na determinacao da estrutura e composicao da flor... more As condicoes ambientais de uma area influenciam na determinacao da estrutura e composicao da flora local. Estudos realizados em regioes semiaridas do nordeste tem demonstrado uma acentuada heterogeneidade floristica e fisionomica. O objetivo do presente estudo foi inventariar a flora de um trecho da Area de Protecao Ambiental (APA) do Cariri, regiao semiarida do Estado da Paraiba, Brasil, realizar a analise de similaridade com a flora de outras areas de Caatinga do nordeste do pais, bem como determinar o espectro biologico e as sindromes de dispersao das especies registradas na area. Durante 15 meses foram realizados trabalhos de campo objetivando a coleta de material botânico fertil, contendo frutos quando possivel, e observacoes. Foramregistradas 177 especies, pertencentes a 126 generos e 48 familias de Angiospermas, alem de uma especie de Pteridophyta. As familias que se sobressairam em numero de especies foram: Fabaceae (27), Asteraceae (10), Malvaceae e Poaceae (09), Cactaceae ...
Brazilian Journal of Botany
Astronium and Myracrodruon are small genera of Anacardiaceae characterized by having fruits with ... more Astronium and Myracrodruon are small genera of Anacardiaceae characterized by having fruits with calycinal wings, which play an important role in dispersion. Molecular phylogenetic studies have indicated that both genera form a monophyletic clade, but the taxonomic circumscription remains controversial, with several discussions either recognizing Myracrodruon as a genus or an infrageneric category of Astronium. In this study, the fruit anatomy of both genera was reevaluated to further develop the understanding of their circumscription and taxonomic position. To this end, the morphoanatomy of the ripe fruits of Myracrodruon balansae and seven species of Astronium was analyzed using standard techniques of light microscopy. In addition, the fruit ontogeny in both genera was evaluated for distinguishable differences and similarities among them. As a result of the emanating study, it can be concluded that fruits of Astronium and Myracrodruon, previously classified as pseudosamara and drupe, respectively, should both be called pseudosamara. Findings such as uniseriate exocarp, parenchymatic mesocarp with large secretory ducts, endocarp organized in discrete layers, and similar development of the calycinal wings support the inclusion of Myracrodruon as a section of Astronium.
Biological spectrum and dispersal syndromes in an area of the semi-arid region of north-eastern B... more Biological spectrum and dispersal syndromes in an area of the semi-arid region of north-eastern Brazil
Botanical Journal of the Linnean Society, 2018
The flowers of most Anacardiaceae have a floral nectary disk producing nectar rich in sugars. How... more The flowers of most Anacardiaceae have a floral nectary disk producing nectar rich in sugars. However, a recent study demonstrated that their nectaries might also produce other substances, including lipids and phenolic compounds. To explore the diversity of floral nectary production and (ultra)structure, and their potential for the systematics of Anacardiaceae, we studied seven genera and 13 species from the two subfamilies. We used spectrophotometry to identify sugars and histochemical tests for other substances, and electron and brightfield microscopy to study nectary (ultra)structure and secretory pathways. The composition of sugars and other substances can vary between closely related species and be more similar in species from different subfamilies, being of limited value for the systematics of the family. The general morphology and structure of the floral nectary and their secretory pathways appear to be conservative in the family, and, like the production of mixed secretions, they might be plesiomorphic. Three morphological types of floral nectaries are defined for the family: nectariferous disk with papillose (1) or smooth epidermis-type (2) and trichomatous-type (3). The secretions may be released both by granulocrine and eccrine mechanisms and exuded through nectarostomata or the cuticle. Further studies are needed to better understand their evolutionary and ecological implications in Anacardiaceae and other sapindalean lineages.
AoB PLANTS, 2018
Flowers of Anacardiaceae and other Sapindales typically produce nectar, but scent, often associat... more Flowers of Anacardiaceae and other Sapindales typically produce nectar, but scent, often associated with a reward for pollinators, has surprisingly been mentioned only rarely for members of the family and order. However, flowers of and produce a strong sweet scent. The origin and composition of these floral scents is the subject of this study. Screening of potential osmophores on the petals and investigations of their anatomy were carried out by light, scanning and transmission electron microscopy. The composition of the floral fragrance was characterized by gas chromatography-mass spectrometry. In both species, the base of the adaxial side of each petal revealed specialized secretory epidermal cells which are essentially similar in structure and distinct from all other neighbouring cells. These cells also showed evidence of granulocrine secretory mechanisms and slight specific variations in their subcellular apparatus coinciding with the respective composition of the floral fragran...
Acta Scientiarum. Biological Sciences, 2015
eduep.uepb.edu.br
... José Iranildo Miranda de Melo 1,2*; Fernanda Kelly Gomes da Silva 1; Maria Betânia ... Gonçal... more ... José Iranildo Miranda de Melo 1,2*; Fernanda Kelly Gomes da Silva 1; Maria Betânia ... Gonçalves 1; Elimar Alves de Lima 1; Leidson Allan Ferreira de Lucena 1; Hermes de ... Organizado [por] Mascarenhas, JC; Beltrão, BA; Souza-Junior, LC; Morais, F.; Mendes, VA; Miranda, JLF ...
Rodriguésia, 2013
A Área de Proteção Ambiental (APA) do Cariri está localizada entre os municípios de Boa Vista e C... more A Área de Proteção Ambiental (APA) do Cariri está localizada entre os municípios de Boa Vista e Cabaceiras, estado da Paraíba, Nordeste do Brasil. Esta APA apresenta microhabitats variados, dentre os quais se destacam os corpos aquáticos. O presente estudo compreende o levantamento das angiospermas aquáticas na APA do Cariri, onde foram registradas 29 espécies distribuídas em 22 gêneros e 14 famílias, sendo Cyperaceae a que apresentou maior riqueza específica (nove spp.). Nesse trabalho são apresentadas descrições, ilustrações, dados de distribuição, floração e/ou frutificação, além de uma chave de identificação para as espécies registradas na APA.
As condicoes ambientais de uma area influenciam na determinacao da estrutura e composicao da flor... more As condicoes ambientais de uma area influenciam na determinacao da estrutura e composicao da flora local. Estudos realizados em regioes semiaridas do nordeste tem demonstrado uma acentuada heterogeneidade floristica e fisionomica. O objetivo do presente estudo foi inventariar a flora de um trecho da Area de Protecao Ambiental (APA) do Cariri, regiao semiarida do Estado da Paraiba, Brasil, realizar a analise de similaridade com a flora de outras areas de Caatinga do nordeste do pais, bem como determinar o espectro biologico e as sindromes de dispersao das especies registradas na area. Durante 15 meses foram realizados trabalhos de campo objetivando a coleta de material botânico fertil, contendo frutos quando possivel, e observacoes. Foramregistradas 177 especies, pertencentes a 126 generos e 48 familias de Angiospermas, alem de uma especie de Pteridophyta. As familias que se sobressairam em numero de especies foram: Fabaceae (27), Asteraceae (10), Malvaceae e Poaceae (09), Cactaceae ...
Brazilian Journal of Botany
Astronium and Myracrodruon are small genera of Anacardiaceae characterized by having fruits with ... more Astronium and Myracrodruon are small genera of Anacardiaceae characterized by having fruits with calycinal wings, which play an important role in dispersion. Molecular phylogenetic studies have indicated that both genera form a monophyletic clade, but the taxonomic circumscription remains controversial, with several discussions either recognizing Myracrodruon as a genus or an infrageneric category of Astronium. In this study, the fruit anatomy of both genera was reevaluated to further develop the understanding of their circumscription and taxonomic position. To this end, the morphoanatomy of the ripe fruits of Myracrodruon balansae and seven species of Astronium was analyzed using standard techniques of light microscopy. In addition, the fruit ontogeny in both genera was evaluated for distinguishable differences and similarities among them. As a result of the emanating study, it can be concluded that fruits of Astronium and Myracrodruon, previously classified as pseudosamara and drupe, respectively, should both be called pseudosamara. Findings such as uniseriate exocarp, parenchymatic mesocarp with large secretory ducts, endocarp organized in discrete layers, and similar development of the calycinal wings support the inclusion of Myracrodruon as a section of Astronium.