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74 results for “Nitzschia”
FIGURES 45–53 in Two new species of Nitzschia (Bacillariophyta) from shallow wetlands of Peninsular India
FIGURES 45–53. SEM micrographs of Nitzschia williamsii sp. nov. Fig. 45. SEM of external view of the entire valve. Fig. 46. SEM of internal view of the entire valve. Figs 47, 48. SEM of external view of the valve apex showing terminal raphe fissures form a small hook along each apex mantle. Figs 49, 50. SEM external view of uniseriate striae with areolae recessed between elevated ridges. Fig. 51. SEM of internal view of valve centre showing the uniseriate striae. Fig. 52. SEM of internal view of the valve showing the round to rectangular fibulae and its spacing. Fig. 53. SEM of internal view of the valve apex showing the internal terminal nodule. Scale bars in Figs 45, 46 = 10 µm; Figs 47, 48, 50, 53 = 2 µm; Fig. 49 = 0.5 µm; Figs 51, 52 = 1 µm. (Specimens from sample CANA 85056)
FIGURES 1–12 in Two new species of Nitzschia (Bacillariophyta) from shallow wetlands of Peninsular India
FIGURES 1–12. Light microscopy of Nitzschia taylorii sp. nov. Figs. 1–9. LM of valve view showing the size diminution series. Figs. 10–12: LM of girdle view. Fig. 7 = holotype. Scale bars = 10 µm. (Specimens from holotype slide CESH-5-1881)
FIGURES 103–110. Nitzschia tarangensis. SEM except Fig. 103 DIC, all from Y26C. Fig. 103. Holotype specimen, valve view. Fig. 104 in New species of benthic marine diatoms (Bacillariophyta) from the Western Pacific islands of Guam and Yap
FIGURES 103–110. Nitzschia tarangensis. SEM except Fig. 103 DIC, all from Y26C. Fig. 103. Holotype specimen, valve view. Fig. 104. Whole valve in SEM, external view. Fig. 105. Internal view of valve fragment showing fibula density (details in Figs 109, 110). Fig. 106. External aspect of apex showing keel extension (long arrow), broad hyaline border of valve (short arrow), and numerous apical pores (arrowhead). Fig. 107. Mid portion of valve showing ribs along edge of valve depression (arrow) and each side of the raphe, and differing pattern of peri-raphe pores on opposite sides of the raphe (arrowheads). Figs 108–110. Internal views of valves showing apices (different valves) and a mid-portion. Arrow on Fig. 108 points to keel extension, arrow on Fig. 109 points to rimate striae near apex. Arrow on Fig 110 points to line of elongate foramina under the rib along the edge of the valve depression. Arrowheads on Figs 108–110 point to periraphe pores visible in the keel. Scale bars: Fig. 105 = 20 µm, Figs 103, 104 = 10 µm, Figs 106–109 = 5 µm, Fig. 110 = 2 µm.
Supplementary material 9 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
SEM photographs of N. nandorii form culture
Supplementary material 4 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
File with rbcL alignment
Figure 8 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 8 The phylogenetic tree of the Nitzschia genus with Eunotia bilunaris as the outgroup based on chloroplast (rbcL) DNA marker (1147 bp). The tree presents the position of newly identified Nitzschia nandorii sp. nov. The numbers above branches represent posterior probabilities from BI analysis followed by bootstrap values from ML analysis. Asterisk (*) represents BI value = 1, and ML value = 100. En dash (-) represents BI value below 0.95, and ML value below 70. Grey box: Lanceolatae section with double rows of areolae on the raphe canal. The topology of the tree is based on BI analysis.
Supplementary material 13 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Bayesian Inference phylogenetic tree of Nitzschia spp. based on the SSU rDNA molecular marker
Figure 6 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 6 SEM photomicrographs of Nitzschia nandorii sp. nov. internal view A valve view with areolae extended on the proximal mantle (white arrow), there is no wider extension between central fibulae (black arrow) B, C central view B areolae on the proximal mantle are arranged the same as on the raphe canal: single and double areolae (white arrow) C doubled areolae are visible from inside the raphe canal (white arrow), narrow mantle with scalloped edge (black arrow) D, E apices view D areolae on the mantle covered by hymenes (white arrow) E distal fissure creates helictoglossa (white arrow). Scale bars: 5 µm (A); 1 µm (B–E).
Supplementary material 1 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Measurements of selected traits of Nitzschia spp from one environmental sample
Figure 5 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 5 SEM photomicrographs of Nitzschia nandorii sp. nov. external view A, B angle view with visible keel B white arrow indicates uninterrupted raphe C, D apices view with distal raphe fissures deflected to the opposite direction C white arrow indicates rows of areolae on proximal mantle E, F close-up central part of the frustule E white arrow indicates missing of central raphe fissures. Scale bars: 5 µm (A, B); 1 µm (C–F).
Figure 4 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 4 SEM photomicrographs of Nitzschia nandorii sp. nov. external valve view A valve view with two rows of areolae on the raphe canal (black arrow), single and double areolae, distal raphe fissures are strongly hooked and deflect (white arrow) B, C valve view with distal raphe fissures deflected to the proximal mantle D decomposed frustule with visible valvocopula with open pores (white arrow). Scale bars: 5 µm.
Figure 3 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 3 Light microscope photomicrographs of Nitzschia spp. A–LN. nandorii sp. nov. from natural population K type species (marked by an asterisk (*)) M–AEN. nandorii sp. nov. from culture AF–AWN. lacuumAX–BIN. alpinobacillum. Scale bar: 10 µm.
Figure 2 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 2 Photomicrographs of chloroplast Nitzschia nandorii sp. nov. A–J light microscope with DIC photomicrographs K–S Confocal Laser Scanning Microscopy photomicrographs, each pair of photomicrographs presents the same chloroplasts from different angles K–N presented single-cell, conical-shaped chloroplasts with visible longitudinal groves O–S presented chloroplasts during cell division. Scale bars: 10 µm (A–J); 2 µm (K–S).
Figure 10 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 10 SEM photomicrographs of Nitzschia alpinobacillumA external view of the valve, two rows of areolae on the raphe canal, single and doubled areolae, covered by hymenes (white arrow), distal raphe fissure strongly deflected and extends on the proximal mantle B internal view of the valve, there is no wider extension between central fibulae C, D internal view of the apices C areolae on the proximal mantle are arranged the same as on the raphe canal: single and double areolae and covered by hymenes (white arrow), narrow distal mantle (black arrow) D distal raphe fissure terminates with helictoglossa. Scale bars: 5 µm (A–C); 1 µm (D).
Supplementary material 7 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Partitioning data
Figure 7 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 7 The phylogenetic tree of the Nitzschia genus with Eunotia bilunaris as the outgroup based on the concatenated nuclear (SSU) and chloroplast (rbcL and psbC) DNA markers (total 2236 bp). The tree presents the position of newly identified Nitzschia nandorii sp. nov. The numbers above branches represent posterior probabilities from BI analysis followed by bootstrap values from ML analysis. Asterisk (*) represents BI value = 1, and ML value = 100. En dash (-) represents BI value below 0.95, and ML value below 70. Grey box: Lanceolatae section with double rows of areolae on the raphe canal. The topology of the tree is based on BI analysis.
Figure 11 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 11 Two-dimensional nMDS plot. Analysis of valve morphology of three Nitzschia species based on the Euclidean distance.
Figure 1 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Figure 1 Location of studied Bogdałów reservoir A location of Greater Poland Voivodeship in Poland and Bogdałów village in Greater Poland Voivodeship B location of the sampling site, white arrowhead sampling site, white arrow inflow of stream (http://earth.google.com).
Supplementary material 12 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Maximum likelihood phylogenetic tree of Nitzschia spp. based on the SSU rDNA molecular marker
Supplementary material 11 from: Olszyński RM, Zakrzewski PK, Rimet F, Sulkowska J, Peszek Ł, Żelazna-Wieczorek J (2024) Morphology and phylogeny of Nitzschia nandorii sp. nov. (Bacillariophyceae), a new small-celled lanceolate species from a post-mining reservoir. PhytoKeys 241: 1-26. https://doi.org/10.3897/phytokeys.241.117406
Bayesian Inference phylogenetic tree of Nitzschia spp. based on the psbC molecular marker
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