Leaf and scape anatomy of Leiothrix Ruhland (Eriocaulaceae) from a taxonomic and ecological perspective

Mascarenhas, Ana Angélica Silva; Harley, Ana Maria Giulietti; Scatena, Vera Lúcia

doi:10.1016/j.flora.2019.151518

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…Hypodermis is a common feature in xerophytic species because of its capacity to store water in dry environments, although this is not the only function of the structure (Mascarenhas, Harley, & Scatena, 2020). It can be a mechanical support system to maintain the leaf architecture in windy places and, most importantly, it can act as an extra filter system to remove excess environmental irradiance, thereby protecting the photosystems from damage (Retamales & Scharschkin, 2015).…”

Section: Resultsmentioning

confidence: 99%

Banana leaf anatomy characteristics related to ploidy levels

Madail

Pio²,

Rezende³

et al. 2022

Acta Sci. Agron.

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Many important crops have cultivars with different ploidy and provide a diverse choice of materials for breeding programs. Therefore, it is essential to accurately assess the ploidy of all breeding materials. Increased DNA content is known to have various effects on external and internal morphology, an effect known as the “nucleotypic effect”. Thus, anatomical assessment can be used as a tool for determining ploidy in plants, making the chromosome counting technique or flow cytometry unnecessary. This study aimed to evaluate the leaf anatomical characteristics of banana cultivars and understand the relationship between these features and ploidy levels. Thirteen accessions were evaluated, including diploid, triploid, and tetraploid genotypes, and cultivars, resulting from in vitro propagation after 90 days of acclimatization. Five fully expanded young leaves were collected from each cultivar, fixed in FAA70 (formaldehyde–acetic acid–ethanol) and preserved in 70% alcohol. Transverse and paradermal sections of the abaxial and adaxial regions were taken, and variables such as size and stomatal density, leaf thickness in the midrib and fourth vascular bundle region, and thickness of the epidermis, hypodermis, and parenchyma were measured. Results for leaf thickness, stomatal size, and density proved to be appropriate parameters for characterizing banana ploidy levels.

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Section: Resultsmentioning

confidence: 99%

Banana leaf anatomy characteristics related to ploidy levels

Madail

Pio²,

Rezende³

et al. 2022

Acta Sci. Agron.

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“…além disto é um carácter taxonômico utilizado para diferenciar espécies dentro dos gêneros (Mascarenhas et al, 2020;Abe et al, 2021;Rashid et al, 2021). Sendo assim, devido aos seus aspectos funcionais, a hipoderme pode ser considerada um tecido contrastante e relativamente importante para plantas de ambientes áridos.…”

Section: Xylopia Aromaticaunclassified

Aspectos Ecológicos, Funcionais e Anatômicos de Três Espécies Lenhosas de Cerradão

Reis

Miranda

Machida

et al. 2023

Rev. Bras. Geog. Fis.

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O cerradão é uma fitofisionomia do Cerrado estruturalmente semelhante a uma floresta, mas que apresenta espécies com características escleromórficas típicas das formações savânicas. Além de ser um ambiente interessante para se investigar espécies com elevada variabilidade intraespecífica, o cerradão ainda se destaca de outras fitofisionomias do bioma Cerrado em termos de sequestro de carbono aéreo. Objetivamos descrever e comparar aspectos ecológicos, funcionais e anatômicos de três espécies de cerradão, bem como, relacionar tais aspectos com a alocação de carbono na porção aérea da biomassa. Para isso selecionou-se espécies que se destacaram em termos de biomassa aérea lenhosa em uma área de cerradão em Palmeiras de Goiás, a saber: Sclerolobium paniculatum Vogel, Tapirira guianensis Aubl. e Xylopia aromatica (Lam.) Mart. Para cada espécie foram amostrados 10 indivíduos e destes coletados atributos funcionais referentes ao caule, folha e anatomia foliar. As características das três espécies analisadas neste estudo indicaram duas linhas de estratégias ecológicas: estratégias escleromórficas e florestais. As duas primeiras espécies mencionadas apresentaram atributos que podem favorecer a fixação de carbono na biomassa aérea, como valores mais altos de densidade média da madeira e diâmetro da base. Xylopia aromatica apresentou indivíduos com aspectos tipicamente escleromórficos, apresentando adaptações a sazonalidade, intensidade luminosa e proteção ao fogo.Palavras-chave: Cerrado, Biomassa aérea, Atributos funcionais Ecological, functional and anatomical aspects of three woody species of cerradão ABSTRACT Ecological, Functional and Anatomical Aspects of Three Woody Species from the CerradoThe cerradão is a vegetation type of the Cerrado biome that is structurally similar to a forest, but with species with scleromorphic characteristics typical of savannah formations. In addition to being an interesting environment to investigate species with high intraspecific variability, the cerradão also stands out from other physiognomic forms of the Cerrado biome in terms of aerial carbon sequestration. We aimed to describe and compare ecological, functional and anatomical aspects of three cerradão species, as well as to relate these aspects with carbon allocation in the aerial portion of the biomass. For this, we selected species that stood out in the aerial woody biomass in an area of cerradão in Palmeiras de Goiás, namely: Sclerolobium paniculatum Vogel, Tapirira guianensis Aubl. and Xylopia aromatica (Lam.) Mart. For each species, 10 individuals were sampled and functional traits of the stem, leaf and leaf anatomy were collected. The characteristics of the three species analysed in this study indicated two lines of ecological strategies: scleromorphic and forest strategies. The first two mentioned species has traits that may facilitate carbon fixation in the aerial biomass, such as higher values of average wood density and diameter of the trunk base. Xylopia aromatica, presented individuals with typically scleromorphic aspects, showing adaptations to seasonality

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