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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oai:doaj.org-article:59d03b7d5b354b6c8ceee7a99c95171c2021-11-05T10:46:21ZMorpho-anatomical features of the leaves and stems of Baccharis notosergila (Asteraceae) and their relationship with the environment and chemical control0373-580X1851-2372https://doaj.org/article/59d03b7d5b354b6c8ceee7a99c95171c2021-11-01T00:00:00Zhttps://revistas.unc.edu.ar/index.php/BSAB/article/view/33519https://doaj.org/toc/0373-580Xhttps://doaj.org/toc/1851-2372 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. Alejandra V. CarboneFederico E. FernándezMarcelo P. HernándezSantiago M. Martínez AlonsoAna Maria ArambarriSociedad Argentina de Botánicaarticleaboveground system adaptation featuresenvironmentSalado river basinstress tolerance.ScienceQBotanyQK1-989ENESPTBoletín de la Sociedad Argentina de Botánica, Vol 56, Iss 4 (2021) |
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DOAJ |
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DOAJ |
| language |
EN ES PT |
| topic |
aboveground system adaptation features environment Salado river basin stress tolerance. Science Q Botany QK1-989 |
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aboveground system adaptation features environment Salado river basin stress tolerance. Science Q Botany QK1-989 Alejandra V. Carbone Federico E. Fernández Marcelo P. Hernández Santiago M. Martínez Alonso Ana Maria Arambarri 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.
|
| format |
article |
| author |
Alejandra V. Carbone Federico E. Fernández Marcelo P. Hernández Santiago M. Martínez Alonso Ana Maria Arambarri |
| author_facet |
Alejandra V. Carbone Federico E. Fernández Marcelo P. Hernández Santiago M. Martínez Alonso Ana Maria Arambarri |
| author_sort |
Alejandra V. Carbone |
| 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 |
| publisher |
Sociedad Argentina de Botánica |
| publishDate |
2021 |
| url |
https://doaj.org/article/59d03b7d5b354b6c8ceee7a99c95171c |
| work_keys_str_mv |
AT alejandravcarbone morphoanatomicalfeaturesoftheleavesandstemsofbaccharisnotosergilaasteraceaeandtheirrelationshipwiththeenvironmentandchemicalcontrol AT federicoefernandez morphoanatomicalfeaturesoftheleavesandstemsofbaccharisnotosergilaasteraceaeandtheirrelationshipwiththeenvironmentandchemicalcontrol AT marcelophernandez morphoanatomicalfeaturesoftheleavesandstemsofbaccharisnotosergilaasteraceaeandtheirrelationshipwiththeenvironmentandchemicalcontrol AT santiagommartinezalonso morphoanatomicalfeaturesoftheleavesandstemsofbaccharisnotosergilaasteraceaeandtheirrelationshipwiththeenvironmentandchemicalcontrol AT anamariaarambarri morphoanatomicalfeaturesoftheleavesandstemsofbaccharisnotosergilaasteraceaeandtheirrelationshipwiththeenvironmentandchemicalcontrol |
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