Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control
Background and aims: Baccharis notosergila is an aggressive weed inhabiting the Salado river basin, Buenos Aires province, Argentina. The aims of this work were: to analyze the morpho-anatomy and histochemistry of aerial vegetative organs in order to understand the adaptation strategies that ensure...
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Sociedad Argentina de Botánica
2021
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| Acceso en línea: | https://revistas.unc.edu.ar/index.php/BSAB/article/view/33519 |
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I10-R325-article-33519 |
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ojs |
| institution |
Universidad Nacional de Córdoba |
| institution_str |
I-10 |
| repository_str |
R-325 |
| container_title_str |
Boletín de la Sociedad Argentina de Botánica |
| language |
Inglés |
| format |
Artículo revista |
| topic |
aboveground system adaptation features environment Salado river basin stress tolerance. Características de adaptación depresión del Salado medio ambiente sistema vegetativo aéreo tolerancia al estrés |
| spellingShingle |
aboveground system adaptation features environment Salado river basin stress tolerance. Características de adaptación depresión del Salado medio ambiente sistema vegetativo aéreo tolerancia al estrés Carbone, Alejandra V. Fernández, Federico E. Hernández, Marcelo P. Martínez Alonso, Santiago M. Arambarri, Ana Maria Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| topic_facet |
aboveground system adaptation features environment Salado river basin stress tolerance. Características de adaptación depresión del Salado medio ambiente sistema vegetativo aéreo tolerancia al estrés |
| author |
Carbone, Alejandra V. Fernández, Federico E. Hernández, Marcelo P. Martínez Alonso, Santiago M. Arambarri, Ana Maria |
| author_facet |
Carbone, Alejandra V. Fernández, Federico E. Hernández, Marcelo P. Martínez Alonso, Santiago M. Arambarri, Ana Maria |
| author_sort |
Carbone, Alejandra V. |
| title |
Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| title_short |
Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| title_full |
Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| title_fullStr |
Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| title_full_unstemmed |
Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control |
| title_sort |
morpho-anatomical features of the leaves and stems of baccharis notosergila (asteraceae) and their relationship with the environment and chemical control |
| description |
Background and aims: Baccharis notosergila is an aggressive weed inhabiting the Salado river basin, Buenos Aires province, Argentina. The aims of this work were: to analyze the morpho-anatomy and histochemistry of aerial vegetative organs in order to understand the adaptation strategies that ensure its survival, as well as to expand knowledge on traits determining resistance to the control methods applied.
M&M: The material collected was prepared and examined with conventional techniques of microscopy. Histochemical tests to identify starch, resins, polyphenols, and lipophilic substances were performed.
Results: The major features found were small and deciduous leaves; uniseriate epidermis with massive and striate cuticle; stomata at level or slightly above the other epidermal cells and glandular trichomes secreting oily substances; stomata on both surfaces and isobilateral mesophyll. Tannins, starch and lipophilic substances were identified in leaves and stems; polyphenols, resins and lipids in ducts, and calcium oxalate crystals in leaves, stems and capitate trichomes.
Conclusions: The aerial vegetative organs features of B. notosergila explain its tolerance to the unfavorable conditions of the Salado river basin area, as well as its high competitive ability over others species of the natural prairie. The reduced and deciduous leaves, the epidermal traits, and chemical substances found constitute a physical and chemical barrier reducing dehydration as well as the penetration of the herbicides applied for its control. Botanical knowledge of B. notosergila is the basis for the design and development of new and appropriate management methods for this species. |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2021 |
| url |
https://revistas.unc.edu.ar/index.php/BSAB/article/view/33519 |
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I10-R325-article-335192022-03-25T14:19:41Z Morpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control Características morfo-anatómicas de las hojas y tallos de Baccharis notosergila (Asteraceae) y su relación con el ambiente y control químico Carbone, Alejandra V. Fernández, Federico E. Hernández, Marcelo P. Martínez Alonso, Santiago M. Arambarri, Ana Maria aboveground system adaptation features environment Salado river basin stress tolerance. Características de adaptación depresión del Salado medio ambiente sistema vegetativo aéreo tolerancia al estrés Background and aims: Baccharis notosergila is an aggressive weed inhabiting the Salado river basin, Buenos Aires province, Argentina. The aims of this work were: to analyze the morpho-anatomy and histochemistry of aerial vegetative organs in order to understand the adaptation strategies that ensure its survival, as well as to expand knowledge on traits determining resistance to the control methods applied. M&M: The material collected was prepared and examined with conventional techniques of microscopy. Histochemical tests to identify starch, resins, polyphenols, and lipophilic substances were performed. Results: The major features found were small and deciduous leaves; uniseriate epidermis with massive and striate cuticle; stomata at level or slightly above the other epidermal cells and glandular trichomes secreting oily substances; stomata on both surfaces and isobilateral mesophyll. Tannins, starch and lipophilic substances were identified in leaves and stems; polyphenols, resins and lipids in ducts, and calcium oxalate crystals in leaves, stems and capitate trichomes. Conclusions: The aerial vegetative organs features of B. notosergila explain its tolerance to the unfavorable conditions of the Salado river basin area, as well as its high competitive ability over others species of the natural prairie. The reduced and deciduous leaves, the epidermal traits, and chemical substances found constitute a physical and chemical barrier reducing dehydration as well as the penetration of the herbicides applied for its control. Botanical knowledge of B. notosergila is the basis for the design and development of new and appropriate management methods for this species. Introducción y objetivos: Baccharis notosergila es una maleza agresiva que habita la Depresión del Salado, provincia Buenos Aires, Argentina. Los objetivos de este trabajo fueron: analizar la morfo-anatomía e histoquímica de los órganos vegetativos aéreos para entender las estrategias de adaptación que aseguran su sobrevivencia, así como profundizar el conocimiento sobre los caracteres que determinan la resistencia a los métodos de control. M&M: El material recolectado fue preparado y analizado con técnicas convencionales para microscopía. Se realizaron pruebas histoquímicas para identificar almidón, resinas, polifenoles y sustancias lipofílicas. Resultados: Los principales caracteres encontrados fueron las hojas pequeñas y caedizas, anfistomáticas con mesofilo isobilateral; la epidermis uniseriada, cutícula masiva y estriada, estomas a nivel o ligeramente elevados y tricomas glandulares que secretan sustancias oleosas. Los tests histoquímicos dieron reacción positiva para almidón, taninos y sustancias lipofílicas en las hojas y tallos; polifenoles, resinas y aceites fueron identificados en los conductos y se hallaron cristales de oxalato de calcio en las hojas, tallos y tricomas capitados. Conclusiones: Las características de los órganos vegetativos aéreos de B. notosergila explican su tolerancia a las condiciones desfavorables del área de la Depresión del Salado, así como su alta habilidad competitiva y predominancia sobre otras especies de la pradera natural. Las hojas pequeñas y deciduas, sus características epidérmicas y sustancias químicas encontradas constituyen una barrera física y química para la deshidratación así como la penetración de los herbicidas aplicados para su control. El conocimiento botánico de B. notosergila es la base para el diseño y desarrollo de nuevos y apropiados métodos para el manejo de esta especie. Sociedad Argentina de Botánica 2021-11-04 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/BSAB/article/view/33519 10.31055/1851.2372.v56.n4.33519 Boletín de la Sociedad Argentina de Botánica (Journal of the Argentine Botanical Society; Vol. 56 No. 4 (2021): December Boletín de la Sociedad Argentina de Botánica; Vol. 56 Núm. 4 (2021): Diciembre Boletín de la Sociedad Argentina de Botánica; v. 56 n. 4 (2021): Diciembre 1851-2372 0373-580X 10.31055/1851.2372.v56.n4 eng https://revistas.unc.edu.ar/index.php/BSAB/article/view/33519/35573 https://revistas.unc.edu.ar/index.php/BSAB/article/view/33519/35574 Derechos de autor 2021 Alejandra V. Carbone, Federico E. Fernández, Marcelo P. Hernández, Santiago M. Martínez Alonso, Ana Maria Arambarri https://creativecommons.org/licenses/by-nc-nd/4.0 |