Mayamaea vietnamica sp. nov.: a new, terrestrial diatom (Bacillariophyceae) species from Vietnam

Kezlya, Elena; Glushchenko, Anton; Kociolek, John Patrick; Maltsev, Yevhen; Martynenko, Nikita; Генкал, С. И.; Kulikovskiy, Maxim

doi:10.4490/algae.2020.35.11.23

Cited by 13 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We also found several M. permitis sequence variants. A large diversity within M. permitis was observed by Kezlya et al (2020) and Bagmet et al (2021), raising the possibility of a cryptic species. Mayamaea ectorii was close to M. permitis variants, however, it was located on a distinct lineage suggesting that it can be accepted as an independent species.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Bíró¹,

Duleba²,

Földi³

et al. 2022

MBMG

View full text Add to dashboard Cite

Diatoms are valuable bioindicators and their traditional classification and identification are mainly based on the morphological characteristics of their frustules. However, in recent years, DNA-based methods have been proposed and are rapidly growing in the scientific literature as a complementary tool to assess the ecological status of freshwaters. Diatom-based ecological status assessment uses indices calculated from sensitivity and tolerance values as well as relative abundance of species. Correct assessment requires an accurate identification of species. In the present study, diatom assemblages of an oxbow lake were investigated using light and scanning electron microscopy as well as metabarcoding using rbcL marker, and the identification results were compared, intending to match barcode sequences of species that are currently missing in the diatom reference database. The investigated oxbow is an important wetland for bird conservation, although it is impacted by land use. Taxon lists based on morphology and metabarcoding considerably differed when bioinformatics analysis involved DADA2 pipeline with Diat.barcode database. Previously unknown sequence variants of four pennate species were found with additional BLAST search. Using phylogeny and p-distance calculations sequences could be matched to three small-celled naviculoid species that were found under a microscope. One of them was found to be a new species of the genus Mayamaea and was described as a new species, Mayamaea ectorii. Additionally, spatial distribution maps for several small-celled naviculoid species are provided for the Hungarian territory.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Molecular information on the genus Mayamaea is scarce (Kezlya et al 2020); sequence data are available only for a few (seven) Mayamaea species. We used only six species because the sequence of M. fossalis was renamed to M. permitis in the Diat.barcode database.…”

Section: Discussionmentioning

confidence: 99%

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Bíró¹,

Duleba²,

Földi³

et al. 2022

MBMG

View full text Add to dashboard Cite

show abstract

“…The genus Mayamaea also possesses morphological characters shared by both families (Sellaphoraceae and Pinnulariaceae). It has uniseriate (to biseriate) striae, external areolae covered by hymenes and a small helictoglossa (Lange-Bertalot 1997; Zidarova et al 2016b;Kezlya et al 2020). In live material of M. vietnamica Kezlya et al (2020) observed one H-shaped plastid, with one arm lying against each side of the girdle, connected by a narrow central isthmus.…”

Section: Phylogenetic Placement Of Chamaepinnulariamentioning

confidence: 99%

Molecular phylogenetics coupled with morphological analyses of Arctic and Antarctic strains place Chamaepinnularia (Bacillariophyta) within the Sellaphoraceae

Schimani¹,

Abarca²,

Zimmermann³

et al. 2024

Fottea

View full text Add to dashboard Cite

The diatom genus Chamaepinnularia was first published by Lange-Bertalot et Krammer in 1996 to accommodate several small species previously included within Navicula and Pinnularia. Despite its morphological similarity to those two genera, the family-level classification of Chamaepinnularia has been considered incertae sedis since its description almost three decades ago. We provide the first molecular characterisation (18S and rbcL) of the genus based on cultured polar strains and investigated its phylogenetic placement. Molecular data are complemented with observations on living cells, as well as detailed examination of oxidized material with light microscopy and scanning electron microscopy. The 12 investigated strains were morphologically identified as three taxa: two already described species (C. gerlachei, C. krookii) and one here newly described (C. australis sp. nov.). These species formed three separate, well-supported branches in the phylogeny. Our analyses placed Chamaepinnularia as a sister group to members of the Sellaphoraceae for which sequence data exist (i.e. Sellaphora, Fallacia, Rossia and Diprora). Based on the presence of hymenate areolae, a single Hshaped plastid with girdle appressed plates and the results of the phylogenetic trees, we propose the inclusion of Chamaepinnularia within the family Sellaphoraceae, which altogether form a supported monophyletic group.

show abstract

“…Our research on soil algocenoses of the Cát Tiên National Park in South Vietnam started in 2019. The project has already yielded new diatom species Mayamaea vientamica [ 39 ] and Placoneis cattiensis [ 40 ]. This article covers morphology, ultrastructure, molecular phylogeny, and FA content for eight new strains of Pinnularia isolated from the tropical soils of Cát Tiên, six of them revealing strong distinctions indicative of new species nominated P. minigibba , P. vietnamogibba , P. microgibba , P. insolita , P. ministomatophora , and P. paradubitabilis .…”

Section: Introductionmentioning

confidence: 99%

Phylogeny and Fatty Acid Profiles of New Pinnularia (Bacillariophyta) Species from Soils of Vietnam

Kezlya

Maltsev

Генкал

et al. 2022

Cells

Self Cite

View full text Add to dashboard Cite

We studied the morphology, ultrastructure, and phylogeny of eight soil diatom strains assigned to the Pinnularia genus. Six of these strains, identified by us as new species, are described for the first time. We provide a comprehensive comparison with related species and include ecological data. Molecular phylogeny reconstruction using 18S rDNA and rbcL affiliates the new strains with different subclades within Pinnularia, including ‘borealis’, ‘grunowii’ and ‘stomatophora’. We also studied the fatty acid profiles in connection with the emerging biotechnological value of diatoms as a source of lipids. Stearic (36.0–64.4%), palmitic (20.1–30.4%), and palmitoleic (up to 20.8%) acids were the dominant fatty acids in the algae cultured on Waris-H + Si medium. High yields of saturated and monounsaturated fatty acids position the novel Pinnularia strains as a promising feedstock for biofuel production.

show abstract

Mayamaea vietnamica sp. nov.: a new, terrestrial diatom (Bacillariophyceae) species from Vietnam

Cited by 13 publications

References 18 publications

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Molecular phylogenetics coupled with morphological analyses of Arctic and Antarctic strains place Chamaepinnularia (Bacillariophyta) within the Sellaphoraceae

Phylogeny and Fatty Acid Profiles of New Pinnularia (Bacillariophyta) Species from Soils of Vietnam

Contact Info

Product

Resources

About

Mayamaea vietnamica sp. nov.: a new, terrestrial diatom (Bacillariophyceae) species from Vietnam

Cited by 13 publications

References 18 publications

﻿Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

﻿Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Molecular phylogenetics coupled with morphological analyses of Arctic and Antarctic strains place Chamaepinnularia (Bacillariophyta) within the Sellaphoraceae

Phylogeny and Fatty Acid Profiles of New Pinnularia (Bacillariophyta) Species from Soils of Vietnam

Contact Info

Product

Resources

About

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species

Metabarcoding as an effective complement of microscopic studies in revealing the composition of the diatom community – a case study of an oxbow lake of Tisza River (Hungary) with the description of a new Mayamaea species