Morphological and anatomical aspects of the leaves of Rhizophora mangle L. (Rhizophoraceae) under different lighting conditions

Authors

  • Camilla Reis Augusto da Silva Centro Universitário Jorge Amado, Av. Luis Viana, n. 6775, Paralela, 41.745-130, Salvador-BA, Brasil.
  • Marcelo dos Santos Silva Programa de Pós-Graduação em Botânica, Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Universitária, s/n, Feira de Santana, BA, 44.031-460, Brasil. Laboratório de Anatomia Vegetal e Identificação de Madeiras (LAVIM), Departamento de Botânica, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, Campus de Ondina, 147, Salvador, BA, 40.170-290, Brasil.
  • Léa Maria dos Santos Lopes Ferreira Centro Universitário Jorge Amado, Av. Luis Viana, n. 6775, Paralela, 41.745-130, Salvador-BA, Brasil.
  • Kelly Regina Batista Leite Laboratório de Anatomia Vegetal e Identificação de Madeiras (LAVIM), Departamento de Botânica, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, Campus de Ondina, 147, Salvador, BA, 40.170-290, Brasil.
  • Lazaro Benedito da Silva Laboratório de Anatomia Vegetal e Identificação de Madeiras (LAVIM), Departamento de Botânica, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, Campus de Ondina, 147, Salvador, BA, 40.170-290, Brasil.

DOI:

https://doi.org/10.5216/rbn.v12i2.33405

Keywords:

Ecological anatomy, Functional anatomy, Leaf plasticity, Luminosity, Mangrove

Abstract

The basic difference between sun and shade leaves arises because of the difference in their exposure to light intensities. To determine the adaptability of Rhizophora mangle L. leaves to different light conditions, we collected leaves from the upper peripheral region (sun leaves) and the internal lower part thereof (shade leaves) of six individuals. The following variables were analyzed: leaf thickness, palisade parenchyma, adaxial and abaxial epidermis, adaxial and abaxial cuticle, density, and stomatal index. The measurements were performed using microscopes equipped with an ocular micrometer. The sun leaves were found to be smaller, with more xeromorphic features such as thicker cuticle and adaxial and abaxial epidermis. The palisade parenchyma and mesophyll of the leaf blade in the sun leaves were found to be thicker than those in the shade leaves, although there was no significant difference in the cuticles of the abaxial face between both the leaf types. The frequency of stomata per square millimeter (average, 70/mm2) was also higher in the sun leaves than in the shade leaves (47 showed/mm2), and there were no differences in the width and length between them to the two types of leaves. Variations between sun and shade leaves indicated an adaptive ability of R. mangle to remain active under varying lighting conditions.

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Author Biography

Marcelo dos Santos Silva, Programa de Pós-Graduação em Botânica, Departamento de Ciências Biológicas, Universidade Estadual de Feira de Santana, Av. Universitária, s/n, Feira de Santana, BA, 44.031-460, Brasil. Laboratório de Anatomia Vegetal e Identificação de Madeiras (LAVIM), Departamento de Botânica, Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, Campus de Ondina, 147, Salvador, BA, 40.170-290, Brasil.

Possui graduação em Ciências Biológicas (Licenciatura e Bacharelado) pela Universidade Federal da Bahia (2010/2013) e mestrado em Botânica pela Universidade Estadual de Feira de Santana (2013). Atualmente é doutorando pelo Programa de Pós-Graduação em Botânica da Universidade Estadual de Feira de Santana. Desde a iniciação científica desenvolve pesquisas na área de Anatomia Vegetal, principalmente com Anatomia de Madeira.

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Published

2016-03-22

How to Cite

AUGUSTO DA SILVA, C. R.; DOS SANTOS SILVA, M.; DOS SANTOS LOPES FERREIRA, L. M.; BATISTA LEITE, K. R.; BENEDITO DA SILVA, L. Morphological and anatomical aspects of the leaves of Rhizophora mangle L. (Rhizophoraceae) under different lighting conditions. Revista de Biologia Neotropical / Journal of Neotropical Biology, Goiânia, v. 12, n. 2, p. 74–80, 2016. DOI: 10.5216/rbn.v12i2.33405. Disponível em: https://revistas.ufg.br/RBN/article/view/33405. Acesso em: 22 nov. 2024.

Issue

Vol. 12 No. 2 (2015)

Section

Articles

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