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Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile

In the extreme north of Chile, the genus Tillandsia L. (Bromeliaceae) is represented by three native species, T. marconae Till & Vitek and T. landbeckii Phil., both of terrestrial atmospheric habit, and T. virescens Ruiz & Pav. of saxicolous habit. There is little information on the foliar s...

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Autores principales: Belmonte, Eliana, Arriaza, Bernardo, Arismendi, Mabel, Sepúlveda, German
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9003348/
https://www.ncbi.nlm.nih.gov/pubmed/35406850
http://dx.doi.org/10.3390/plants11070870
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author Belmonte, Eliana
Arriaza, Bernardo
Arismendi, Mabel
Sepúlveda, German
author_facet Belmonte, Eliana
Arriaza, Bernardo
Arismendi, Mabel
Sepúlveda, German
author_sort Belmonte, Eliana
collection PubMed
description In the extreme north of Chile, the genus Tillandsia L. (Bromeliaceae) is represented by three native species, T. marconae Till & Vitek and T. landbeckii Phil., both of terrestrial atmospheric habit, and T. virescens Ruiz & Pav. of saxicolous habit. There is little information on the foliar structures that allow its establishment in arid environments. Therefore, we studied the leaf anatomy of each of these terrestrial and saxicolous atmospheric species from different altitudinal levels (1000 and 3000 m) in the Arica and Parinacota regions of the Atacama Desert. All populations are monospecific. The study considered scanning electron microscopy, optical microscopy, and the fingernail polish technique. The surface distribution of stomata and trichomes of the species is described. The studied species presented hypostomatic leaves, with anomocytic stomata and peltate trichomes on the abaxial and adaxial sides. Trichomes are formed by a central disc of four equal-sized empty cells, surrounded by a peripheral series of several concentric rings, the innermost of eight, the second of sixteen and the outermost of multiple elongated cells, one cell thick, that form the flexible asymmetric wings. The number of wing cells varies according to the species. Trichomes are evenly arranged in long lanceolate leaf blades with smooth margins.
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spelling pubmed-90033482022-04-13 Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile Belmonte, Eliana Arriaza, Bernardo Arismendi, Mabel Sepúlveda, German Plants (Basel) Article In the extreme north of Chile, the genus Tillandsia L. (Bromeliaceae) is represented by three native species, T. marconae Till & Vitek and T. landbeckii Phil., both of terrestrial atmospheric habit, and T. virescens Ruiz & Pav. of saxicolous habit. There is little information on the foliar structures that allow its establishment in arid environments. Therefore, we studied the leaf anatomy of each of these terrestrial and saxicolous atmospheric species from different altitudinal levels (1000 and 3000 m) in the Arica and Parinacota regions of the Atacama Desert. All populations are monospecific. The study considered scanning electron microscopy, optical microscopy, and the fingernail polish technique. The surface distribution of stomata and trichomes of the species is described. The studied species presented hypostomatic leaves, with anomocytic stomata and peltate trichomes on the abaxial and adaxial sides. Trichomes are formed by a central disc of four equal-sized empty cells, surrounded by a peripheral series of several concentric rings, the innermost of eight, the second of sixteen and the outermost of multiple elongated cells, one cell thick, that form the flexible asymmetric wings. The number of wing cells varies according to the species. Trichomes are evenly arranged in long lanceolate leaf blades with smooth margins. MDPI 2022-03-24 /pmc/articles/PMC9003348/ /pubmed/35406850 http://dx.doi.org/10.3390/plants11070870 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Belmonte, Eliana
Arriaza, Bernardo
Arismendi, Mabel
Sepúlveda, German
Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title_full Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title_fullStr Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title_full_unstemmed Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title_short Foliar Anatomy of Three Native Species of Tillandsia L. from the Atacama Desert, Chile
title_sort foliar anatomy of three native species of tillandsia l. from the atacama desert, chile
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9003348/
https://www.ncbi.nlm.nih.gov/pubmed/35406850
http://dx.doi.org/10.3390/plants11070870
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