Morphological variability of Consolida regalis seeds of south-eastern and central Europe

Rewicz, Agnieszka; Bomanowska, Anna; Magda, Joanna; Rewicz, Tomasz

doi:10.1080/14772000.2016.1216017

Cited by 12 publications

(10 citation statements)

References 34 publications

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“…Previous studies on seed sculpture have shown its usefulness in plant taxonomy, as seen for Asteraceae (Shabestari et al, 2013), Caryophyllaceae , Poaceae (Martín-Gómez, Rewicz, Goriewa-Duba, et al, 2019), Ranunculaceae (Hadidchi et al, 2020;Rewicz et al, 2017), and Orchidaceae (Ortúñez et al, 2006;Rewicz et al, 2016). Our research is the first insight into the seed ultrastructure of five species from the genus Impatiens from Northeast India.…”

Section: Discussionmentioning

confidence: 59%

New Data on Seed Coat Micromorphology of Several Impatiens spp. from Northeast India

et al. 2020

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This study aimed to analyze the seed coat structure of nine species from the genus Impatiens from Northeast India. A review of the available literature showed a scarcity of data on seed sizes and shapes, as well as a complete lack of information on the ultrastructure of seeds from five taxa of Impatiens determined with a scanning electron microscope (SEM). Photographs of the surface structure of seeds from the analyzed species were taken using an SEM and, from these, we measured the length and width of the seeds. The results showed differences in the seed ultrastructure and metric traits within the studied taxa. Based on the ornamentation of the epidermal cells, we distinguished three morphological types: protrusive, granulate, and reticulate. The seeds of the investigated species had ellipsoid, subellipsoid, or subspheroid shapes. Their lengths and widths ranged from 1.2 to 3.6 mm and 0.7 to 2.1 mm, respectively. The results of the study showed that the ultrastructures of Impatiens seeds are different among taxa and for some species can be used as a diagnostic character for their identification.

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Section: Discussionmentioning

confidence: 59%

New Data on Seed Coat Micromorphology of Several Impatiens spp. from Northeast India

et al. 2020

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“…SEM gives us the means for studying the morphological characters of seeds and their ultrastructural characteristics which helps or identifying and determining the taxonomic delimitation of various angiosperm groups, as demonstrated for Brasssicaceae (Tantaway et al, 2004), Caryophyllaceae (Ullah et al, 2019a;Ullah et al, 2019b), Poaceae , Cyperaceae (Więcław et al, 2017), Ranunculaceae (Constantinidis, Psaras & Kamari, 2001;Rewicz et al, 2017;Hadidchi, Attar & Ullah, 2020), Rosaceae (Ballian & Mujagić-Pašić, 2013), Cervantes (Akbari & Azizian, 2006), and Orchidaceae (Gamarra et al 2007;Gamarra et al, 2010;Rewicz, Kołodziejek & Jakubska-Busse, 2016). Although seed morphology alone does not provide universally applicable key characters for species identification, it can be as helpful as many other characters used in taxonomy.…”

Section: Discussionmentioning

confidence: 99%

“…We measured four quantified seed traits: seed length (SL), seed width (SW), seed circumference (SC), and seed area (SA). The seeds were measured as previously described in Rewicz et al (2017). In order to describe the seed mass, we used 15 seeds from each population.…”

Section: Biometric and Sem Analysismentioning

confidence: 99%

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Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Rewicz

Myśliwy

Adamowski

et al. 2020

PeerJ

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Impatiens capensis is an annual plant native to eastern North America that is currently spreading across Europe. In Poland, due to this plant’s rapid spread in the secondary range and high competitiveness in relation to native species, it is considered a locally invasive species. The microstructure of seeds is an important tool for solving various taxonomic problems and also provides data useful for determining the impact of various environmental factors on the phenotypic variability of species. This issue is particularly important in regard to invasive species which occupy a wide range of habitats in the invaded range. There are few reports on seed size and thus far no descriptions of the seed ultrastructure of I. capensis in the analyzed literature. We present new data on the seed morphology of I. capensis growing in different habitats and conditions in the secondary range of the species. The studied populations differed significantly in each of the investigated traits (seed length, width, circumference, area, roundness, and mass). Our findings showed that anthropogenic disturbances in habitats and some soil parameters (presence of carbonates, potassium, loose sand, and moisture) were statistically significant with various seed sizes and morphology in the studied populations of I. capensis. Moreover, our studies showed maximum seed length (5.74 mm) and width (3.21 mm) exceeding those values given in the available literature. For the first time, we also provide a detailed SEM study of the ultrastructure of the seed coat of I. capensis. There are two types of epidermal cells on the seeds: (a) between the ribs (elongated with straight anticlinal walls, slightly concave outer periclinal walls, and micropapillate secondary sculpture on the edges with anticyclic walls), and (b) on the ribs (isodiametric cells with straight anticlinal walls and concave outer periclinal walls). Unlike the variability of size and weight of seeds, the coat ornamentation has turned out to be a steady feature within the studied secondary range of I. capensis.

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“…Scanning electron microscopy (SEM) was used to illustrate tiny cuticular structures such as 'scales' (Garm, 2004) and a clinging apparatus. SEM imaging was performed using a Phenom ProX scanning electron microscope at the Department of Invertebrate Zoology and Hydrobiology, University of Lodz, Poland, using an air-dryer without a sputter metallic layer (Rewicz et al, 2017).…”

Section: High-resolution Imagingmentioning

confidence: 99%

Deeper diversity exploration: New Typhlotanaidae (Crustacea: Tanaidacea) from the Kuril-Kamchatka Trench area

2022

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Typhlotanaidae Sieg, 1984, is one of the most diverse Tanaidacea families from deep-sea waters. Its diversity is underestimated, and evolutionary relationships within the family remain mostly unknown. Deep-sea typhlotanaids collected from 23 sites across the Kuril-Kamchatka Trench and nearby waters were studied using an integrative taxonomy approach, combining morphological and genetic data (i.e., the mitochondrial subunit I of the cytochrome oxidase (COI) and the 18S rDNA nuclear gene). One new species of Typhlamia and two new species belonging to two new genera are described, significantly increasing the known diversity of typhlotanaids from the NW Pacific. The molecular phylogeny obtained, despite being preliminary results, was congruent with morphological data and supports the monophyly of different groups such as the ‘short-bodied’ forms (represented by Ty. cornutus and Ty. eximius) or the ‘collar’ forms (e.g., Ty. variabilis and Torquella). Molecular data confirm the non-monophyly of Typhlotanais species. Finally, the new typhlotanaid taxa seem to have distinct bathymetric distribution and ecological requirements, but further data on environmental factors and species abundances are still needed.

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Morphological variability of Consolida regalis seeds of south-eastern and central Europe

Cited by 12 publications

References 34 publications

New Data on Seed Coat Micromorphology of Several Impatiens spp. from Northeast India

New Data on Seed Coat Micromorphology of Several Impatiens spp. from Northeast India

Seed morphology and sculpture of invasive Impatiens capensis Meerb. from different habitats

Deeper diversity exploration: New Typhlotanaidae (Crustacea: Tanaidacea) from the Kuril-Kamchatka Trench area

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