Pseudo-nitzschia delicatissima (P.T. Cleve) Heiden in Heiden & Kolbe, 1928

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Pseudo-nitzschia delicatissima

Pseudo-nitzschia delicatissima. Light (A), SEM (B, C, D, E) and TEM (F, G, H) micrographs. (A, B and C) Scale bars = 10 µm. (D and F) Scale bars = 2 µm. (E) Scale bar = 0.1 µm. (G) Scale bar = 0.5 µm. (H) Scale bar = 0.2 µm (A) Part of a chain, lugol-preserved sample, DIC. (B) Colony with cells overlap, girdle view. (C) Whole valve, internal view. (D) Girdle view of “cut-off” valve ends. (E) Internal view of middle part of valve, showing larger central interspace, biseriate striae and central nodule. (F) The two ends of each valve site; note rounded shape and no difference in structure. (G) Cingular bands. (H) Poroids in two rows with hexagonal perforation pattern; note the different poroid shape and size.

Photographer/artist Vladyslava Hostyeva

Additional image information

Title
Pseudo-nitzschia delicatissima
Photographer/artist
Vladyslava Hostyeva
Copyright holder
Vladyslava Hostyeva
Copyright stamp
VH
Institute
Biological Institute
Contributing organisation
University of Oslo
Contributor
Wenche Eikrem
Caption
Pseudo-nitzschia delicatissima. Light (A), SEM (B, C, D, E) and TEM (F, G, H) micrographs. (A, B and C) Scale bars = 10 µm. (D and F) Scale bars = 2 µm. (E) Scale bar = 0.1 µm. (G) Scale bar = 0.5 µm. (H) Scale bar = 0.2 µm (A) Part of a chain, lugol-preserved sample, DIC. (B) Colony with cells overlap, girdle view. (C) Whole valve, internal view. (D) Girdle view of “cut-off” valve ends. (E) Internal view of middle part of valve, showing larger central interspace, biseriate striae and central nodule. (F) The two ends of each valve site; note rounded shape and no difference in structure. (G) Cingular bands. (H) Poroids in two rows with hexagonal perforation pattern; note the different poroid shape and size.
Sampling date
Sampling 2009-2010
Geographic area
Skagerrak - Norwegian coast
Location
Outer Oslofjorden
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
Light microscopy, TEM Transmission Electron Micoscopy, SEM Scanning Electron Microscopy
Preservation
Lugols iodine, Formaldehyde, Osmium tetroxide
Contrast enhancement
DIC/Nomarski, Phase contrast
Stain
Sputter coated
Image galleries
Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Harmfulness, IOC
This species is included in the IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae.

Biovolumes

Species Pseudo-nitzschia delicatissima
Author (P.T. Cleve) Heiden in Heiden & Kolbe 1928
Division CHRYSOPHYTA (HETEROKONTOPHYTA)
Class Diatomophyceae (Bacillariophyceae)
Order BACILLARIALES (PENNALES)
Trophy AU
Geometric shape parallelepiped-10%
Formula l*w*h*0.9
Size class 1 2 3 4 5
Unit cell cell cell cell cell
Size range 1x50-60 2x40-50 2-3x50-60 2.5x50-60 1-2x50-70
Length(l1), µm 55.0 45.0 55.0 55.0 60.0
Width(w), µm 1 1.9 2.5 2.5 1.5
Height(h), µm 1.0 1.9 2.5 1.8 1.5
No. of cells/counting unit 1 1 1 1 1
Calculated volume, µm3 50 146 309 220 122
Calculated Carbon pg/counting unit 7 16 30 23 14

Source

Olenina, I., Hajdu, S., Edler, L., Andersson, A., Wasmund, N., Busch, S., Göbel, J., Gromisz, S., Huseby, S., Huttunen, M., Jaanus, A., Kokkonen, P., Ledaine, I. and Niemkiewicz, E. 2006 Biovolumes and size-classes of phytoplankton in the Baltic Sea HELCOM Balt.Sea Environ. Proc. No. 106, 144pp. (PDF),
PEG_BVOL.zip

Change History

  • 2011-10-28 10:01:19 Wenche Eikrem - Updated media metadata for Pseudo-nitzschia delicatissima_1.jpg
  • 2011-10-28 09:58:20 Wenche Eikrem - Added media: Pseudo-nitzschia delicatissima_1.jpg