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  <titleInfo>
    <title>Anatomy and micromorphometry of Caryocar brasiliense leaves</title>
  </titleInfo>
  <name type="personal">
    <namePart>Ramos, Bárbara Helena</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <name type="personal">
    <namePart>Silva, Kellen Lagares Ferreira</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <name type="personal">
    <namePart>Coimbra, Ronaldo Rodrigues</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Chagas, Davi Borges</namePart>
    <role>
      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
  </name>
  <name type="personal">
    <namePart>Ferreira, Wagner de Melo</namePart>
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      <roleTerm authority="marcrelator" type="text">creator</roleTerm>
    </role>
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  <abstract>

Abstract

The current study aims to study the anatomy and micromorphometry of C. brasiliense leaves in three Cerrado
(savanna) vegetation-types: dense, typical and sparse) - in the municipality of Porto Nacional-TO. Samples
were collected, fixed and stored in alcohol 70%. Transverse, longitudinal and paradermal sections of the median
leaflet were prepared for anatomical and micromorphometric studies using standard techniques. C. brasiliense
leaflets show uniestratified epidermis covered by thick cuticle on the adaxial surface and by paracytic stomata and
multicellular non-glandular trichomes on the abaxial surface. The mesophyll is formed by two or three layers of
palisade parenchyma adaxially and spongy parenchyma abaxially. The vascular bundle is of the collateral type and
the accessory bundles show a sheath extending into the epidermides. The micromorphometric analyses pointed to
significant differences in the thickness of both adaxial epidermis and spongy parenchyma in all specimens from
the three vegetation-types. The highest averages were found in the leaflets of sparse cerrado plants, suggesting
that environmental factors may have an influence over the plants morphological responses.

Key words: Caryocaraceae, Micromorphometry, Pequi, Morphology.




Resumo

O objetivo do trabalho foi caracterizar anatômica e micromorfometricamente folhas de C. brasiliense em três 
fitofisionomias do Cerrado (denso, típico e ralo), no município de Porto Nacional-TO. Amostras foram
coletadas, fixadas e armazenadasestocadas em álcool 70%. Utilizando técnicas usuais para estudos em anatomia
vegetal, foram obtidas secções transversais, longitudinais e paradérmicas do folíolo mediano para estudos
anatômicos e micromorfométricos. Os folíolos de C. brasiliense apresentaram epiderme uniestratificada,
recoberta por cutícula espessa na face adaxial e por estômatos paracíticos e tricomas tectores pluricelulares
na face abaxial. O mesofilo é formado por duas a três camadas de parênquima paliçádico na face adaxial
e esponjoso na abaxial. O feixe vascular é do tipo colateral, com demais feixes acessórios apresentando
bainha que se estende até a epiderme. As análises micromorfométricas revelaram diferenças significativas
na espessura da epiderme adaxial e do parênquima esponjoso em todas as plantas estudadas para cada uma
das três fitofisionomias, sendo as médias mais elevadas encontradas nos folíolos das plantas crescendo em
Cerrado esparso. Isto sugere que a influência de fatores ambientais pode ter modulado respostas morfológicas
nas plantas.

Palavras-chave: Caryocaraceae, Micromorfometria, Pequi, Morfologia. </abstract>
  <note>Publicação on-line; 33 ref.; 1 table; 2 illus.; Summaries (En, Pt)</note>
  <subject>
    <topic>PEQUI</topic>
  </subject>
  <subject>
    <topic>MORFOLOGIA VEGETAL</topic>
  </subject>
  <subject>
    <topic>CARYOCAR BRASILIENSE</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Rodriguésia (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Rio de Janeiro-RJ Jardim Botanico do Rio de Janeiro 1935</publisher>
    </originInfo>
    <identifier>2025-1382</identifier>
    <identifier type="issn">0370-6583; 2175-7860 on-line</identifier>
    <identifier type="local">BR2024004986</identifier>
    <part>
      <text>v. 66(1) p. 087-094; (2015)</text>
    </part>
  </relatedItem>
  <identifier type="uri">https://www.scielo.br/j/rod/a/LqZCHYdddZ3c7QFkzZkdBxS/?format=pdf&amp;lang=en</identifier>
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    <url>https://www.scielo.br/j/rod/a/LqZCHYdddZ3c7QFkzZkdBxS/?format=pdf&amp;lang=en</url>
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    <recordCreationDate encoding="marc">250306</recordCreationDate>
    <recordChangeDate encoding="iso8601">20250306150538.0</recordChangeDate>
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