03591nab a2200301 i 4500003000900000005001700009008004100026040001800067072000800085072000800093100003900101100004200140100002800182100002500210245011100235500007600346520119500422520129801617650001002915650001802925650001202943650002302955650002702978650002103005650001203026773017303038856007803211BR-BrBNA20251202142619.0251202b2019    bl.|r|pooa||| 00| 0 eng |  aBR-BrBNAbeng  aF40  aF50  aLemos, Viviane de Oliveira Thomaz   aLucena, Eliseu Marlônio Pereira de   aBonilla, Oriel Herrera   aEdson-Chaves, Bruno   aEcological anatomy of Eugenia punicifolia (Kunth) DC. (MYRTACEAE) in the restinga region, state of Ceará  a
Publicação online; 41 ref.; 3 tables; 3 illus.; Summaries (En, Pt)  a


Abstract -      The species Eugenia punicifolia (Kunth) DC. (myrtle) occurs in the coastal region of the state of Ceará and has ecological and medicinal importance. This study aimed to characterize the leaf anatomy of myrtle (E. punicifolia) in the rainy and dry seasons, as well as in the sun and shade in the restinga region of the state of Ceará and to contribute to the understanding of the morphoanatomic variations in response to the natural conditions of the occurrence of this species. For this, collections of fully expanded leaves were performed at the Botanical Park of Ceará and fixed in FAA70, being replaced by 70% ethanol after 24 hours. The usual anatomical procedures were then performed in order to qualitatively and quantitatively analyze the leaf blade, petiole and epidermis structures. As a result, it was found that myrtle has xeromorphic characteristics such as thick cuticle, hypoestomatic leaf and sclerenchyma fibers in the median vein vascular bundles. It was concluded that E. punicifolia has great plasticity to adjust well under the analyzed conditions.


Index terms:      Coastal vegetation, myrtle, anatomical plasticity, seasonality, luminosity.  a


Resumo-      A espécie Eugenia punicifolia (Kunth) DC. (murta) ocorre em região de litoral, no Estado do Ceará, e possui importância ecológica e medicinal. A presente pesquisa objetivou caracterizar a anatomia foliar da murta (E. punicifolia), nas estações de chuva e seca, bem como ao sol e à sombra, na Restinga cearense, pretendendo contribuir para a compreensão das variações morfoanatômicas em resposta às condições naturais de ocorrência da espécie. Para isso, foram realizadas coletas, no Parque Estadual Botânico do Ceará, de folhas totalmente expandidas e fixadas em FAA70, sendo substituído por etanol a 70%, após 24 horas. Seguiu-se para os procedimentos anatômicos usuais, a fim de analisar qualitativa e quantitativamente as estruturas da lâmina foliar, do pecíolo e da epiderme. Como resultado obteve-se que a murta apresenta características xeromórficas, como cutícula espessa, folha hipoestomática e fibras de esclerênquima nos feixes vasculares da nervura mediana. Portanto, conclui-se que a E. punicifolia possui grande plasticidade por conseguir ajustar-se bem nas condições analisadas.


Termos para indexação:      Vegetação litorânea, murta, plasticidade anatômica, sazonalidade, luminosidade.  aMURTA  aVEGETAÇÃO  aLITORAL  aRADIAÇÃO SOLAR  aCONDIÇÃO AMBIENTAL  aANATOMIA VETETAL  aCEARÁ0 0805dJaboticabal-SP Sociedade Brasileira de Fruticultura 1978o2024-3605tRevista Brasileira de Fruticultura (Brazil)x0100-2945gv. 41(6) p. 1-11; (2019)wBR2025005154  uhttps://www.scielo.br/j/rbf/a/tmFNyq4rkWX844mhM94TSMp/?format=pdf&lang=en