<b>Leaf architecture and symmetry of understory tree species of an Araucaria forest
Shade plants of ombrophilous forests are subjected to light-limiting conditions and need to invest in architectural structures associated with leaf symmetry to increase light capture. This study investigated the leaf architecture of six Araucaria forest tree species with distinct symmetry: Cupania...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Maringá
2018-11-01
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| Series: | Acta Scientiarum: Biological Sciences |
| Subjects: | |
| Online Access: | https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43118 |
| _version_ | 1818247245837893632 |
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| author | Maria Regina Torres Boeger Daiane Maria Pilatti Carolina Sereneski de Lima Allan Mauricio Sanches Baptista de Alvarenga Suelen Cristina Alves da Silva Pereto |
| author_facet | Maria Regina Torres Boeger Daiane Maria Pilatti Carolina Sereneski de Lima Allan Mauricio Sanches Baptista de Alvarenga Suelen Cristina Alves da Silva Pereto |
| author_sort | Maria Regina Torres Boeger |
| collection | DOAJ |
| description |
Shade plants of ombrophilous forests are subjected to light-limiting conditions and need to invest in architectural structures associated with leaf symmetry to increase light capture. This study investigated the leaf architecture of six Araucaria forest tree species with distinct symmetry: Cupania vernalis, Casearia sylvestris, Schinus terebinthifolius, Piper gaudichaudianum, Roupala brasiliensis and Cedrela fissilis. We hypothesized that symmetry, associated with other traits, minimizes self-shading. Asymmetry index, petiole length, total leaf area, leaf angle, internode length and stem diameter were measured. The asymmetry index did not indicate a clear distinction between asymmetric and symmetric leaves. Leaves classified as asymmetric had higher values for the asymmetry index in the median and basal regions of the leaf, while symmetrical leaves had higher values in the apical region. The results also indicated an adjustment among structural leaf traits that facilitated a three-dimensional organization that produced an advantageous arrangement for light capture, which seems to be a response to selective pressure by the heterogeneous light conditions of the ombrophilous forest understory.
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| first_indexed | 2024-12-12T15:01:39Z |
| format | Article |
| id | doaj.art-fd90012c1db243759ee9cbfadbfa2a9f |
| institution | Directory Open Access Journal |
| issn | 1679-9283 1807-863X |
| language | English |
| last_indexed | 2024-12-12T15:01:39Z |
| publishDate | 2018-11-01 |
| publisher | Universidade Estadual de Maringá |
| record_format | Article |
| series | Acta Scientiarum: Biological Sciences |
| spelling | doaj.art-fd90012c1db243759ee9cbfadbfa2a9f2022-12-22T00:20:48ZengUniversidade Estadual de MaringáActa Scientiarum: Biological Sciences1679-92831807-863X2018-11-0140110.4025/actascibiolsci.v40i1.4311843118<b>Leaf architecture and symmetry of understory tree species of an Araucaria forestMaria Regina Torres Boeger0Daiane Maria Pilatti1Carolina Sereneski de Lima2Allan Mauricio Sanches Baptista de Alvarenga3Suelen Cristina Alves da Silva Pereto4Universidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do ParanáUniversidade Federal do Paraná Shade plants of ombrophilous forests are subjected to light-limiting conditions and need to invest in architectural structures associated with leaf symmetry to increase light capture. This study investigated the leaf architecture of six Araucaria forest tree species with distinct symmetry: Cupania vernalis, Casearia sylvestris, Schinus terebinthifolius, Piper gaudichaudianum, Roupala brasiliensis and Cedrela fissilis. We hypothesized that symmetry, associated with other traits, minimizes self-shading. Asymmetry index, petiole length, total leaf area, leaf angle, internode length and stem diameter were measured. The asymmetry index did not indicate a clear distinction between asymmetric and symmetric leaves. Leaves classified as asymmetric had higher values for the asymmetry index in the median and basal regions of the leaf, while symmetrical leaves had higher values in the apical region. The results also indicated an adjustment among structural leaf traits that facilitated a three-dimensional organization that produced an advantageous arrangement for light capture, which seems to be a response to selective pressure by the heterogeneous light conditions of the ombrophilous forest understory. https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43118ombrophilous forestasymmetry indexleaf morphologyshade leaveslight efficiency. |
| spellingShingle | Maria Regina Torres Boeger Daiane Maria Pilatti Carolina Sereneski de Lima Allan Mauricio Sanches Baptista de Alvarenga Suelen Cristina Alves da Silva Pereto <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest Acta Scientiarum: Biological Sciences ombrophilous forest asymmetry index leaf morphology shade leaves light efficiency. |
| title | <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest |
| title_full | <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest |
| title_fullStr | <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest |
| title_full_unstemmed | <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest |
| title_short | <b>Leaf architecture and symmetry of understory tree species of an Araucaria forest |
| title_sort | b leaf architecture and symmetry of understory tree species of an araucaria forest |
| topic | ombrophilous forest asymmetry index leaf morphology shade leaves light efficiency. |
| url | https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43118 |
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