Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico
Background and Aims: Leaf architecture and anatomy in the Asteraceae family are extremely diverse and have been studied from ecological, physiological and evolutionary perspectives. The aims of this study are to describe in detail leaf architecture and anatomy for 61 species belonging to 13 tribes o...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | spa eng |
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Instituto de Ecología, A.C.
2019
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| Online Access: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1515 |
| _version_ | 1799771360502743040 |
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| author | Rivera, Patricia Terrazas, Teresa Rojas-Leal, Alicia Villaseñor, José Luis |
| author_facet | Rivera, Patricia Terrazas, Teresa Rojas-Leal, Alicia Villaseñor, José Luis |
| author_sort | Rivera, Patricia |
| collection | ABM |
| description | Background and Aims: Leaf architecture and anatomy in the Asteraceae family are extremely diverse and have been studied from ecological, physiological and evolutionary perspectives. The aims of this study are to describe in detail leaf architecture and anatomy for 61 species belonging to 13 tribes of Asteraceae inhabiting a xerophytic scrub in Mexico City, Mexico and to discuss characters common to these tribes.Methods: Mature and undamaged leaves of 61 species of Asteraceae were collected in southwestern Mexico City in the “Reserva Ecológica del Pedregal de San Ángel” (REPSA). Standard anatomical techniques were used to obtain permanent slides of cleared leaves and transverse and paradermal sections. The permanent slides were analyzed to describe leaf architecture and anatomy by tribe following the standard terminologies.Key results: The results show a significant variation in leaf architecture although pinnate venation, brochidodromous secondary venation, areoles moderately developed and looped ultimate marginal venation predominate in the material studied. For anatomy, the most common traits are the striate cuticle, occurrence of trichomes and glands, as well as collateral vascular bundles with a parenchymatous sheath with girders in the Asteraceae present in this xerophytic scrub. There are no unique combinations of leaf characters for the family or any tribe.Conclusions: Leaf diversity in the family and within each tribe is consistent with some previous reports. Anatomical descriptions are a fundamental piece of the evolutionary, ecological and physiological studies in Asteraceae. The results of this descriptive study will allow testing hypotheses about the factors causing leaf diversity in this plant lineage. More leaf anatomical studies of the family are necessary to confirm the patterns proposed for the tribes and the family. |
| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1515 |
| institution | Acta Botanica Mexicana |
| language | spa eng |
| publishDate | 2019 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-15152022-11-25T21:25:49Z Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico Arquitectura y anatomía foliar de especies de Asteraceae en un matorral xerófilo de la Ciudad de México, México Rivera, Patricia Terrazas, Teresa Rojas-Leal, Alicia Villaseñor, José Luis Asteroideae Compositae Heliantheae leaf anatomy midvein vascular bundle sheath venation pattern anatomía foliar Asteroideae Compositae Heliantheae patrón de venación vaina del haz vascular vena media Background and Aims: Leaf architecture and anatomy in the Asteraceae family are extremely diverse and have been studied from ecological, physiological and evolutionary perspectives. The aims of this study are to describe in detail leaf architecture and anatomy for 61 species belonging to 13 tribes of Asteraceae inhabiting a xerophytic scrub in Mexico City, Mexico and to discuss characters common to these tribes.Methods: Mature and undamaged leaves of 61 species of Asteraceae were collected in southwestern Mexico City in the “Reserva Ecológica del Pedregal de San Ángel” (REPSA). Standard anatomical techniques were used to obtain permanent slides of cleared leaves and transverse and paradermal sections. The permanent slides were analyzed to describe leaf architecture and anatomy by tribe following the standard terminologies.Key results: The results show a significant variation in leaf architecture although pinnate venation, brochidodromous secondary venation, areoles moderately developed and looped ultimate marginal venation predominate in the material studied. For anatomy, the most common traits are the striate cuticle, occurrence of trichomes and glands, as well as collateral vascular bundles with a parenchymatous sheath with girders in the Asteraceae present in this xerophytic scrub. There are no unique combinations of leaf characters for the family or any tribe.Conclusions: Leaf diversity in the family and within each tribe is consistent with some previous reports. Anatomical descriptions are a fundamental piece of the evolutionary, ecological and physiological studies in Asteraceae. The results of this descriptive study will allow testing hypotheses about the factors causing leaf diversity in this plant lineage. More leaf anatomical studies of the family are necessary to confirm the patterns proposed for the tribes and the family. Antecedentes y Objetivos: La arquitectura y anatomía foliar en la familia Asteraceae son extremadamente diversas y han sido estudiadas desde distintas perspectivas, como la ecológica, fisiológica y evolutiva. Los objetivos de este estudio son describir detalladamente la arquitectura y anatomía foliar de 61 especies incluidas en 13 tribus de la familia Asteraceae que habitan un matorral xerófilo en la Ciudad de México, México y discutir los caracteres comunes de las tribus.Métodos: Se colectaron hojas maduras y sanas de 61 especies de Asteraceae al sureste de la Ciudad de México en la “Reserva Ecológica del Pedregal de San Ángel” (REPSA). Se usaron técnicas anatómicas estandarizadas para obtener hojas aclaradas y secciones transversales y paradermales. Estas preparaciones permanentes se analizaron para describir la arquitectura y anatomía foliar por tribu con base en la terminología convencional.Resultados clave: Los resultados muestran una variación significativa en la arquitectura foliar, aunque predominan la venación pinnada, venación secundaria broquidódroma, areolas moderadamente desarrolladas y márgenes en bucles. En la anatomía los atributos más comunes son la cutícula estriada, la presencia de tricomas y glándulas, así como haces vasculares colaterales con una vaina parenquimatosa con extensiones en las Asteráceas presentes en este matorral xerófilo. No hay una combinación única de caracteres foliares para la familia o las tribus.Conclusiones: La diversidad foliar dentro de la familia y al interior de cada tribu corresponde con reportes previos. Las descripciones anatómicas son una pieza fundamental de los estudios evolutivos, ecológicos y fisiológicos en Asteraceae. Los resultados de este estudio descriptivo permitirán probar hipótesis acerca de los factores que causan la diversidad foliar en este linaje de plantas. Se necesitan más estudios anatómicos foliares en Asteraceae para confirmar los patrones propuestos para las tribus y la familia. Instituto de Ecología, A.C. 2019-06-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/epub+zip application/xml https://abm.ojs.inecol.mx/index.php/abm/article/view/1515 10.21829/abm126.2019.1515 Acta Botanica Mexicana; No. 126 (2019) Acta Botanica Mexicana; Núm. 126 (2019) 2448-7589 0187-7151 spa eng https://abm.ojs.inecol.mx/index.php/abm/article/view/1515/4075 https://abm.ojs.inecol.mx/index.php/abm/article/view/1515/4076 https://abm.ojs.inecol.mx/index.php/abm/article/view/1515/1844 Derechos de autor 2019 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Rivera, Patricia Terrazas, Teresa Rojas-Leal, Alicia Villaseñor, José Luis Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title | Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title_full | Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title_fullStr | Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title_full_unstemmed | Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title_short | Leaf architecture and anatomy of Asteraceae species in a xerophytic scrub in Mexico City, Mexico |
| title_sort | leaf architecture and anatomy of asteraceae species in a xerophytic scrub in mexico city, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1515 |
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