On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae
Background and Aims: The growth habit is a character commonly used in taxonomic descriptions of plants and one of the first to be taught to students of plant morphology. Defining growth habits has turned into a complex matter due to the proliferation of terms. By definition, some habits can be disti...
| Główni autorzy: | , , |
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| Format: | Online |
| Język: | eng |
| Wydane: |
Instituto de Ecología, A.C.
2018
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| Dostęp online: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1245 |
| _version_ | 1799771327099305984 |
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| author | Naranjo Vásquez, Juan Pablo Torres, Mauricio Quijano, Mario Alberto |
| author_facet | Naranjo Vásquez, Juan Pablo Torres, Mauricio Quijano, Mario Alberto |
| author_sort | Naranjo Vásquez, Juan Pablo |
| collection | ABM |
| description | Background and Aims: The growth habit is a character commonly used in taxonomic descriptions of plants and one of the first to be taught to students of plant morphology. Defining growth habits has turned into a complex matter due to the proliferation of terms. By definition, some habits can be distinguished by plant stem anatomy, but there are actually few studies that evaluate this correspondence. The family Melastomataceae is an excellent group to investigate how stem anatomy varies among plants with contrasting growth habits because it shows considerable variation in growth habits and stem anatomy. In this study, we analyzed whether stem anatomy characteristics vary consistently across growth habits in species of Melastomataceae.Methods: Eighteen species of Melastomataceae were collected in different Colombian ecosystems. Observation of 125 stem anatomy characters was performed on fixed internode slices, which were cut by freehand in transverse, radial longitudinal, and tangential planes. We used as a prior a classification of growth habits that we consolidated from a literature review, aiming to reconcile multiple schemes of classification of habits across vascular plants.Key results: Few anatomical characteristics were shared exclusively by species of one particular growth habit. Therefore, the Melastomataceae species analyzed here could be grouped in three general growth habits: trees/shrubs, herbaceous, and climbers.Conclusions: Many of the current definitions of growth habits are a mixture of different topics including ecology, specimen size, and the presence of specialized organs. For the concept of growth habits to be useful, it should be avoided to elevate ranges of size, habitats, or specific functional morphology adaptations to the generalized category of growth habits. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1245 |
| institution | Acta Botanica Mexicana |
| language | eng |
| publishDate | 2018 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-12452022-11-26T07:13:59Z On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae Sobre hábitos de crecimiento y formas: el uso de la anatomía del tallo para definir hábitos de crecimiento de Melastomataceae Naranjo Vásquez, Juan Pablo Torres, Mauricio Quijano, Mario Alberto anatomy climber growth habit herb Melastomataceae shrub tree anatomía árbol arbusto hábitos de crecimiento hierba Melastomataceae trepadora Background and Aims: The growth habit is a character commonly used in taxonomic descriptions of plants and one of the first to be taught to students of plant morphology. Defining growth habits has turned into a complex matter due to the proliferation of terms. By definition, some habits can be distinguished by plant stem anatomy, but there are actually few studies that evaluate this correspondence. The family Melastomataceae is an excellent group to investigate how stem anatomy varies among plants with contrasting growth habits because it shows considerable variation in growth habits and stem anatomy. In this study, we analyzed whether stem anatomy characteristics vary consistently across growth habits in species of Melastomataceae.Methods: Eighteen species of Melastomataceae were collected in different Colombian ecosystems. Observation of 125 stem anatomy characters was performed on fixed internode slices, which were cut by freehand in transverse, radial longitudinal, and tangential planes. We used as a prior a classification of growth habits that we consolidated from a literature review, aiming to reconcile multiple schemes of classification of habits across vascular plants.Key results: Few anatomical characteristics were shared exclusively by species of one particular growth habit. Therefore, the Melastomataceae species analyzed here could be grouped in three general growth habits: trees/shrubs, herbaceous, and climbers.Conclusions: Many of the current definitions of growth habits are a mixture of different topics including ecology, specimen size, and the presence of specialized organs. For the concept of growth habits to be useful, it should be avoided to elevate ranges of size, habitats, or specific functional morphology adaptations to the generalized category of growth habits. Antecedentes y Objetivos: El hábito de crecimiento es un carácter comúnmente usado en descripciones taxonómicas de plantas y uno de los primeros enseñados a estudiantes de morfología vegetal. La definición de hábitos de crecimiento se ha convertido en un aspecto complejo debido a la proliferación de términos. Por definición, algunos hábitos pueden distinguirse por medio de anatomía caulinar, pero hay pocos estudios que hayan evaluado esta correspondencia. La familia Melastomataceae es un excelente grupo para investigar cómo la anatomía del tallo varía entre plantas con hábitos de crecimiento contrastantes, ya que presenta una variación considerable en hábitos de crecimiento y anatomía caulinar. En este estudio analizamos si las características de la anatomía caulinar varían de manera consistente en especies de Melastomataceae de distintos hábitos de crecimiento.Métodos: Recolectamos 18 especies de la familia Melastomataceae en diferentes ecosistemas colombianos. Se registraron observaciones de 125 caracteres de anatomía caulinar a partir de cortes histológicos del entrenudo, fijados, los cuales fueron cortados a mano alzada de los planos transversal, longitudinal y tangencial radial. Empleamos una clasificación a priori de hábitos de crecimiento, la cual se consolidó a partir de una revisión de literatura, tratando de reconciliar diferentes esquemas de clasificación de hábitos utilizados en plantas vasculares.Resultados clave: Hubo muy pocas características compartidas exclusivamente por especies de un hábito de crecimiento particular. Por lo tanto, las especies de Melastomataceae analizadas podrían clasificarse en tres hábitos de crecimiento: árboles-arbustos, herbáceas y trepadoras.Conclusiones: Muchas de las definiciones actuales sobre los hábitos de crecimiento son una mezcla de diferentes temas, incluyendo la ecología, el tamaño del espécimen y la presencia de órganos especializados. Para que este concepto sea útil, deben evitarse incluir rangos de tamaño, hábitats o adaptaciones morfológicas funcionales específicas en la categoría generalizada de hábitos de crecimiento. Instituto de Ecología, A.C. 2018-02-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares text/html application/pdf application/xml https://abm.ojs.inecol.mx/index.php/abm/article/view/1245 10.21829/abm123.2018.1245 Acta Botanica Mexicana; No. 123 (2018); 67-101 Acta Botanica Mexicana; Núm. 123 (2018); 67-101 2448-7589 0187-7151 eng https://abm.ojs.inecol.mx/index.php/abm/article/view/1245/html https://abm.ojs.inecol.mx/index.php/abm/article/view/1245/pdf https://abm.ojs.inecol.mx/index.php/abm/article/view/1245/1546 Derechos de autor 2018 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Naranjo Vásquez, Juan Pablo Torres, Mauricio Quijano, Mario Alberto On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title | On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title_full | On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title_fullStr | On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title_full_unstemmed | On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title_short | On growth habits and forms: the utility of stem anatomy to define growth habits of Melastomataceae |
| title_sort | on growth habits and forms: the utility of stem anatomy to define growth habits of melastomataceae |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1245 |
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