Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico
Background and Aims: Fagus grandifolia subsp. mexicana inhabits Mexico, forming relict in the cloud forests of the Sierra Madre Oriental; it is an endemic taxon that is currently in danger of extinction. The aim of this study was to describe the macroscopic and microscopic anatomical features of the...
| Main Authors: | , , , , , |
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| Format: | Online |
| Language: | spa |
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Instituto de Ecología, A.C.
2022
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| Online Access: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1989 |
| _version_ | 1799771411453050880 |
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| author | Cuapio Hernández, Liliana Borja-de la Rosa, Ma. Amparo Reyes Trejo, Benito Villanueva Morales, Antonio Machuca Velasco, Roberto Corona Ambriz, Alejandro |
| author_facet | Cuapio Hernández, Liliana Borja-de la Rosa, Ma. Amparo Reyes Trejo, Benito Villanueva Morales, Antonio Machuca Velasco, Roberto Corona Ambriz, Alejandro |
| author_sort | Cuapio Hernández, Liliana |
| collection | ABM |
| description | Background and Aims: Fagus grandifolia subsp. mexicana inhabits Mexico, forming relict in the cloud forests of the Sierra Madre Oriental; it is an endemic taxon that is currently in danger of extinction. The aim of this study was to describe the macroscopic and microscopic anatomical features of the wood of F. grandifolia subsp. mexicana to contribute to its anatomical knowledge.Methods: The wood samples were obtained by a non-destructive method consisting of the extraction of cores from the stem of live trees and pieces of the trunk of one tree that recently had been felled by the wind. The anatomical description of the wood was made in the tangential, across, and radial planes, at the macroscopic level with wooden boards (7×12×1 cm section and polished) and microscopically with fixed slides of core sections. The anatomic description was made following the terminology by the International Association of Wood Anatomists. The Vulnerability index (VI), vessel grouping index (VIg), and mesomorphic index (MI) were also estimated. The RStudio program was used to perform the statistical tests and Excel to estimate the index.Key results: The wood of Fagus grandifolia subsp. mexicana is light brown colored, medium to high gloss, veining pronounced, straight grained and coarse texture, with diffuse porosity, simple and scalariform perforation plates (with 5-20 bars), opposite intervascular pits, tylosis, vasicentric tracheids, libiform fibers, apotracheal axial parenchyma diffuse and apotracheal parenchyma, heterogeneous rays, ray width uniseriate, biseriate, multiseriate and aggregate rays, prismatic crystals and silica bodies. Some anatomical features coincide with those of other species of the same genus.Conclusions: The description of the wood anatomy of F. grandifolia subsp. mexicana is the first for this taxon. Furthermore, it contributes to interrelating the information on its characteristics with that of other Fagus species of economic importance. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1989 |
| institution | Acta Botanica Mexicana |
| language | spa |
| publishDate | 2022 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-19892022-07-14T09:03:49Z Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico Anatomía de la madera de Fagus grandifolia subsp. mexicana (Fagaceae), especie endémica de México Cuapio Hernández, Liliana Borja-de la Rosa, Ma. Amparo Reyes Trejo, Benito Villanueva Morales, Antonio Machuca Velasco, Roberto Corona Ambriz, Alejandro anatomical features cloud forest heartwood Mexican beech sapwood xylem albura bosque mesófilo de montaña características anatómicas duramen haya mexicana xilema Background and Aims: Fagus grandifolia subsp. mexicana inhabits Mexico, forming relict in the cloud forests of the Sierra Madre Oriental; it is an endemic taxon that is currently in danger of extinction. The aim of this study was to describe the macroscopic and microscopic anatomical features of the wood of F. grandifolia subsp. mexicana to contribute to its anatomical knowledge.Methods: The wood samples were obtained by a non-destructive method consisting of the extraction of cores from the stem of live trees and pieces of the trunk of one tree that recently had been felled by the wind. The anatomical description of the wood was made in the tangential, across, and radial planes, at the macroscopic level with wooden boards (7×12×1 cm section and polished) and microscopically with fixed slides of core sections. The anatomic description was made following the terminology by the International Association of Wood Anatomists. The Vulnerability index (VI), vessel grouping index (VIg), and mesomorphic index (MI) were also estimated. The RStudio program was used to perform the statistical tests and Excel to estimate the index.Key results: The wood of Fagus grandifolia subsp. mexicana is light brown colored, medium to high gloss, veining pronounced, straight grained and coarse texture, with diffuse porosity, simple and scalariform perforation plates (with 5-20 bars), opposite intervascular pits, tylosis, vasicentric tracheids, libiform fibers, apotracheal axial parenchyma diffuse and apotracheal parenchyma, heterogeneous rays, ray width uniseriate, biseriate, multiseriate and aggregate rays, prismatic crystals and silica bodies. Some anatomical features coincide with those of other species of the same genus.Conclusions: The description of the wood anatomy of F. grandifolia subsp. mexicana is the first for this taxon. Furthermore, it contributes to interrelating the information on its characteristics with that of other Fagus species of economic importance. Antecedentes y Objetivos: Fagus grandifolia subsp. mexicana habita en México, formando relictos en el bosque mesófilo de montaña en la Sierra Madre Oriental; es un taxón endémico que actualmente se encuentra en peligro de extinción. El objetivo del estudio fue describir las características anatómicas macroscópicas y microscópicas de la madera de Fagus grandifolia subsp. mexicana con el fin de contribuir a su conocimiento anatómico. Métodos: Las muestras de madera se obtuvieron mediante un método no destructivo que consistió en la extracción de núcleos del fuste de árboles vivos y trozos del tronco de un árbol derribado por el viento. La descripción anatómica de la madera se realizó en los planos tangencial, transversal y radial, a nivel macroscópico con tablillas (7×12×1 cm cortadas y pulidas) y microscópico con preparaciones fijas de cortes de los núcleos, de acuerdo con la terminología propuesta por la International Association of Wood Anatomists; también se estimaron los índices de vulnerabilidad (IV), agrupamiento de vasos (IVg) y mesomorfía (IM). Se empleó el programa RStudio para realizar las pruebas estadísticas y Excel para la estimación de los índices. Resultados clave: La madera de Fagus grandifolia subsp. mexicana es de color castaño claro, brillo medio a alto, veteado pronunciado, hilo recto y textura gruesa, posee porosidad difusa, placa de perforación simple y escalariforme (5-20 barras), punteaduras intervasculares opuestas, tílosis, traqueidas vasicéntricas, fibras libriformes, parénquima axial paratraqueal y apotraqueal difuso, radios heterocelulares uniseriados, biseriados, multiseriados y agregados, cristales prismáticos y cuerpos de sílice. Algunos rasgos anatómicos coinciden con los de otras especies del mismo género.Conclusiones: La descripción anatómica de la madera de F. grandifolia subsp. mexicana es la primera que se realiza para este taxón; además, contribuye a interrelacionar la información de sus características con las de otras especies de Fagus de importancia económica. Instituto de Ecología, A.C. 2022-05-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf text/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/1989 10.21829/abm129.2022.1989 Acta Botanica Mexicana; No. 129 (2022) Acta Botanica Mexicana; Núm. 129 (2022) 2448-7589 0187-7151 spa https://abm.ojs.inecol.mx/index.php/abm/article/view/1989/4198 https://abm.ojs.inecol.mx/index.php/abm/article/view/1989/4235 https://abm.ojs.inecol.mx/index.php/abm/article/view/1989/4199 https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Cuapio Hernández, Liliana Borja-de la Rosa, Ma. Amparo Reyes Trejo, Benito Villanueva Morales, Antonio Machuca Velasco, Roberto Corona Ambriz, Alejandro Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title | Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title_full | Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title_fullStr | Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title_full_unstemmed | Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title_short | Wood anatomy of Fagus grandifolia subsp. mexicana (Fagaceae), endemic species from Mexico |
| title_sort | wood anatomy of fagus grandifolia subsp. mexicana (fagaceae), endemic species from mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1989 |
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