Ewa Górecka

ORCID: 0000-0003-0590-7480
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About
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Research Areas
  • Diatoms and Algae Research
  • Microbial Community Ecology and Physiology
  • Geology and Environmental Impact Studies
  • Geological Formations and Processes Exploration
  • Genomics and Phylogenetic Studies
  • Marine and coastal ecosystems
  • Waste Management and Environmental Impact
  • Mining and Industrial Processes
  • Geotechnical and Mining Engineering
  • Marine Biology and Ecology Research
  • Minerals Flotation and Separation Techniques
  • Botany and Plant Ecology Studies
  • Identification and Quantification in Food
  • earthquake and tectonic studies
  • Marine Biology and Environmental Chemistry
  • Geological and Geochemical Analysis
  • Marine Toxins and Detection Methods
  • Bacteriophages and microbial interactions
  • Geological and Tectonic Studies in Latin America
  • Chemical Thermodynamics and Molecular Structure
  • Mineral Processing and Grinding
  • Methane Hydrates and Related Phenomena
  • Cephalopods and Marine Biology
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Nuclear Physics and Applications

University of Szczecin
2016-2025

Polish Geological Institute
2013-2014

The current article describes Navicula vanseea sp. nov. , a new species of diatom from Lake Van, highly alkaline lake in Eastern Anatolia (Türkiye). description is based on light and scanning electron microscopy performed two monoclonal cultures. complete nuclear rRNA clusters plastid genomes have been sequenced for these strains the mitogenome one them. plastome both shows probable loss functional ycf35 gene. They also exhibit IB4 group I introns their rrl each encoding putative LAGLIDADG...

10.3897/phytokeys.241.118903 article EN cc-by PhytoKeys 2024-04-08

Abstract Tryblionella (Bacillariaceae) was described by Smith in 1853, and for many years, the diagnosis of this genus questionable. Recent molecular analysis based on rbc L gene marker suggests that is a polyphyletic with T. apiculata , hungarica gaoana forming distinct group from other representatives. Therefore, study aimed to clarify as genus. The focus selected species previously categorized within Grunow's section Apiculatae, which includes type acuminata . This classification serves...

10.1111/jpy.70004 article EN cc-by Journal of Phycology 2025-03-18

:The focus of this paper is the sexual reproduction and phylogeny Schizostauron Grunow, which were studied using clonal cultures isolated from Indian Ocean coast Mozambique near Tofo Bazaruto. Taxa characterized by light electron microscopy a derived three genes (rbcL, psbC short subunit). was established in second half 19th century, then forgotten, with its taxa included Cocconeis or Achnanthes sensu lato. Schizostauron, together Astartiella perhaps also Kolbesia Karayevia, seems to form...

10.2216/16-29.1 article EN Phycologia 2016-12-06

In many marine littoral and sublittoral benthic habitats, we find small diatoms with few features resolvable light microscopy (LM) other than internal costae across their valves. While classically those have defined identification classification, the use of electron molecular data started to reveal true diversity unrelated forms genera (e.g., Anaulus, Eunotogramma, Hustedtiella, or Plagiogramma) which possess these structures. Here describe new genus Ambo, in an attempt clarify some...

10.1016/j.protis.2020.125713 article EN cc-by-nc-nd Protist 2020-01-30

The study of prehistoric tsunami deposits enables us to appraise the recurrence frequency and improve risk assessments coastlines. We present a (A.D. 500 present) exposed at Tirúa, central Chile. Analyses various proxies such as grain size, petrography, geochemistry, diatoms were applied intercalated in uppermost 2 m Tirúa River floodplain (1.2–2 km inland) order distinguish these from surrounding river marsh sediments. sand layers are characterized by erosional bases landward thinning...

10.1130/ges01528.1 article EN cc-by-nc Geosphere 2018-05-02

Madagascar is an isolated oceanic island characterized by high degrees of endemism at all taxonomic levels. The waters surrounding are still poorly studied for benthic marine diatom assemblages. aim our study was to analyse the biodiversity and molecular phylogeny assemblages Nosy Be archipelago in terms their ubiquity/rarity. A total 65 samples from 14 sampling sites were collected Tanikely islands June/July 2014. Diatom identification, based on light electron microscopic examination,...

10.1080/14772000.2019.1696420 article EN Systematics and Biodiversity 2019-12-23

Presented here are new insights into the marine monoraphid diatom genera Schizostauron and Astartiella , based on molecular morphological data, including descriptions of species. Although no unambiguous synapomorphies between two currently recognized, they closely related by DNA sequence data. Heterovalvate frustules characterized a bifid stauros raphe‐bearing valve intricate areolate occlusions sternum valve. In is process resembling fistula morphology, while presents particular striation...

10.1111/jpy.13192 article EN Journal of Phycology 2021-06-24

In this article we describe Nitzschia anatoliensis Górecka, Gastineau & Solak sp. nov., an example of a diatom species inhabiting extreme habitats. The new has been isolated and successfully grown from the highly alkaline Van Lake in East Turkey. description is based on morphology (light scanning electron microscopy), sequencing its organellar genomes several molecular phylogenies. This could easily be overlooked because similarity to aurariae but phylogenies indicate that they are only...

10.7717/peerj.12220 article EN cc-by PeerJ 2021-10-22

New molecular and morphological insights are presented on Campylosira africana two new species, Extubocellulus cupola sp. nov. Plagiogrammopsis castigatus Species descriptions were based LM / SEM micrographs a data set with concatenated sequences of SSU , rbc L psb C loci constructed from 56 cymatosiroid strains isolated global geographic locations. is distinguished by mesh‐like marginal ridge dome‐shaped areolation, P. prominent extension at the valve center. species South Africa described...

10.1111/jpy.12831 article EN Journal of Phycology 2019-01-08

We provide for the first time complete plastid and mitochondrial genomes of a monoraphid diatom: Schizostauron trachyderma. The mitogenome is 41,957 bp in size displays two group II introns cox1 gene. 187,029 genome features typical quadripartite architecture diatom genomes. It contains intron petB gene that overlaps large single-copy inverted repeat region. There also IB4 encoding putative LAGLIDADG homing endonuclease rnl multigene phylogenies conducted more evidence proximity between S....

10.3390/ijms222011139 article EN International Journal of Molecular Sciences 2021-10-15

The focus of this study was to determine the mating type Schizostauron trachyderma and examine relationship between cell size (life cycle), lipid droplet size, content among diatoms with similar dimensions. To accomplish that, we have chosen monoclonal cultures two closely related diatom species, namely S. rawaii . In a series experiments, successfully induced sexual reproduction within strains reconstruct whole cycle involving cells maximum (initial cells) minimum viable for given species....

10.3389/fmars.2021.793665 article EN cc-by Frontiers in Marine Science 2022-02-08

Although previous phylogenetic analyses suggested that the araphid diatom family Plagiogrammaceae is monophyletic, there still not a clear understanding of relationships among genera, and taxonomy several genera--Dimeregramma Plagiogramma--remains questionable in light paraphyly for both genera using molecular morphological data. We have expanded available DNA work dozens plagiogrammacean clones analyzed 29 characters from plagiogrammarian taxa closely related to increase evolutionary...

10.1016/j.ympev.2020.106808 article EN cc-by-nc-nd Molecular Phylogenetics and Evolution 2020-03-31

The current article focuses on the morphological and molecular characterization of often inconspicuous genus Amicula. This recently erected from brackish marine sediments was monotypic but here we describe two new tropical species: Amicula micronesica sp. nov. vermiculata Once considered an incertae sedis regarding its higher rank taxonomy, position among family Diploneidaceae is proposed by phylogenetics. complete plastid mitochondrial genomes are also presented here. It appears that...

10.3389/fmars.2022.941506 article EN cc-by Frontiers in Marine Science 2022-07-20

Abstract We describe the new species Gomphonemopsis sieminskae from brackish waters of East China Sea littoral near Ningbo, China. Two diatom strains isolated Ulva sp. were successfully grown, then analyzed by light (LM) and scanning electron (SEM) microscopy. The is compared to known species, similarities G . pseudoexigua obscurum are emphasized. Although size metric data overlap external views fairly similar, two taxa differ in their valve interior. Molecular barcoding strongly...

10.2478/pfs-2019-0003 article EN cc-by Plant and Fungal Systematics 2019-07-01
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