Anatomy of leaves of six Pinus species from the state of Durango, México
México is the country with the highest number of Pinus species in the world, with around 49, of which in Durango there are registered 20. Despite being the genus most used as timber, the information about its leaf characteristics is scarce. Studies about foliar anatomy of Pinus, have shown that some...
| Main Authors: | , |
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| Format: | Online |
| Jezik: | spa |
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Instituto de Ecología, A.C.
2019
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| Online dostop: | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511698 |
| _version_ | 1799769353331146752 |
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| author | de la Paz Pérez Olvera, Carmen Ceja-Romero, Jacqueline |
| author_facet | de la Paz Pérez Olvera, Carmen Ceja-Romero, Jacqueline |
| author_sort | de la Paz Pérez Olvera, Carmen |
| collection | MYB |
| description | México is the country with the highest number of Pinus species in the world, with around 49, of which in Durango there are registered 20. Despite being the genus most used as timber, the information about its leaf characteristics is scarce. Studies about foliar anatomy of Pinus, have shown that some features are useful for their classification, therefore in this paper the morphological and anatomical description of the leaves of six species collected in two municipalities in the state of Durango is presented, in order to determine if there are differences between them that may be useful in this sense. Samples were obtained from herborized material, which was hydrated and processed through the paraffin embedding protocol, to obtain permanent slides. The morphological characters studied were: presence-absence, color and length of the sheath; margin, length and diameter of the needles, number of needles per fascicle. The anatomical characters were: shape of the leaf in cross section, number of stomata rows in superficial view and characteristics of epidermis, mesophyll and vascular system. P. leiophyla was the only species with deciduous sheath. Although in all taxa the shape of the leaf was triangular in cross section, there was variation in the opening of the angles and the position on the resin ducts, however no differences were observed between the representatives of the Ponderosae and Australes subsections, which may have taxonomic utility. |
| format | Online |
| id | oai:oai.myb.ojs.inecol.mx:article-1698 |
| institution | Madera y Bosques |
| language | spa |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.myb.ojs.inecol.mx:article-16982022-11-29T22:50:05Z Anatomy of leaves of six Pinus species from the state of Durango, México Anatomía de la hoja de seis especies de Pinus del estado de Durango, México de la Paz Pérez Olvera, Carmen Ceja-Romero, Jacqueline needles leaf anatomy morphology Pinaceae section Trifoliae acículas anatomía foliar morfología Pinaceae sección Trifoliae México is the country with the highest number of Pinus species in the world, with around 49, of which in Durango there are registered 20. Despite being the genus most used as timber, the information about its leaf characteristics is scarce. Studies about foliar anatomy of Pinus, have shown that some features are useful for their classification, therefore in this paper the morphological and anatomical description of the leaves of six species collected in two municipalities in the state of Durango is presented, in order to determine if there are differences between them that may be useful in this sense. Samples were obtained from herborized material, which was hydrated and processed through the paraffin embedding protocol, to obtain permanent slides. The morphological characters studied were: presence-absence, color and length of the sheath; margin, length and diameter of the needles, number of needles per fascicle. The anatomical characters were: shape of the leaf in cross section, number of stomata rows in superficial view and characteristics of epidermis, mesophyll and vascular system. P. leiophyla was the only species with deciduous sheath. Although in all taxa the shape of the leaf was triangular in cross section, there was variation in the opening of the angles and the position on the resin ducts, however no differences were observed between the representatives of the Ponderosae and Australes subsections, which may have taxonomic utility. México es el país con mayor número de especies de Pinus en el mundo con alrededor de 49, de las cuales, se tienen registradas 20 para el estado de Durango. A pesar de ser el género más utilizado como maderable, es poca la información que se tiene sobre las características de sus hojas. Los estudios sobre la anatomía foliar de Pinus, han mostrado que algunas características son útiles para su clasificación, por lo que en este trabajo se presenta la descripción morfológica y anatómica de la hoja de seis especies recolectadas en dos municipios del estado de Durango, con el fin de determinar si hay diferencias entre ellas que puedan ser útiles en este sentido. Las muestras se obtuvieron a partir de material herborizado que fue hidratado y procesado a través de la técnica de inclusión en parafina, para la obtención de preparaciones permanentes. Los caracteres morfológicos estudiados fueron: presencia-ausencia, color y longitud de la vaina, margen, longitud y diámetro de la acícula, número de acículas por fascículo. Los anatómicos fueron: forma de la hoja en corte transversal, cantidad de hileras de estomas en vista superficial y características de la epidermis, mesófilo y sistema vascular. Pinus leiophylla fue la única especie con vaina decidua, si bien en todas las especies la forma de la lámina en corte transversal fue triangular, se registró variación en la apertura de los ángulos y en la posición de los canales resiníferos, sin embargo, no se observan diferencias entre los representantes de las subsecciones Ponderosae y Australes, que pudieran tener utilidad taxonómica. Instituto de Ecología, A.C. 2019-07-19 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artículo evaluado por pares application/pdf application/xml https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511698 10.21829/myb.2019.2511698 Madera y Bosques; Vol. 25 No. 1 (2019): Spring 2019 Madera y Bosques; Vol. 25 Núm. 1 (2019): Primavera 2019 2448-7597 1405-0471 spa https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511698/1929 https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511698/1938 Derechos de autor 2019 Madera y Bosques |
| spellingShingle | de la Paz Pérez Olvera, Carmen Ceja-Romero, Jacqueline Anatomy of leaves of six Pinus species from the state of Durango, México |
| title | Anatomy of leaves of six Pinus species from the state of Durango, México |
| title_full | Anatomy of leaves of six Pinus species from the state of Durango, México |
| title_fullStr | Anatomy of leaves of six Pinus species from the state of Durango, México |
| title_full_unstemmed | Anatomy of leaves of six Pinus species from the state of Durango, México |
| title_short | Anatomy of leaves of six Pinus species from the state of Durango, México |
| title_sort | anatomy of leaves of six pinus species from the state of durango, méxico |
| url | https://myb.ojs.inecol.mx/index.php/myb/article/view/e2511698 |
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