Center:
Free-living dinoflagellates of the genus Pyrocystis Murray
ex Haeckel, 1890. Drawing by Edouard Chatton (1883–1947), Banyuls-sur-mer,
France, for one of the numerous “class-boards” composed
for his students (ca. 1930). The original size of these boards (the
present figure is a part of one of them) is about 100 cm in width
on 150 cm in height. See article by Soyer-Gobillard, MO, this issue
pp. 37–42. (Magnification, ca. 900×)
Upper left:
Human calicivirus (Norwalk-like virus). Transmission electron microscopy
(negative staining with phosphotungstic acid) by David Cubitt, Great
Ormond Street Hospital, London, and Albert Bosch, University of Barcelona,
Spain. (Magnification, ca. 650,000×)
Upper right:
Cross section of a high-pressure freezed and freezed substituted sample
of cyanobacterium Halospirulina sp. Samples were frozen at
high-pressure in a Leica EM Pact High-Pressure Freezer, and freeze-substituted
at –90ºC for three days in a Leica AFS instrument (Xavier
Huete, Jordi Urmeneta and Carmen López-Iglesias, University
of Barcelona, Spain). (Magnification, ca. 35,000×)
Lower left:
Nuclear and infraciliature features of the ciliated protozoa Colpoda
inflata, observed by silver carbonate impregnation. This strain
was isolated from a soil sample from Panama forest. Courtesy of Carmen
Jareño and Ana Martín-González. University Complutense
of Madrid, Spain. (Magnification, ca. 1000×)
Lower right: Basidia
of Lentinula edodes. Scanning electron microscopy image of
a fertile gill’s surface showing 4-sterigmated basidia, some
with developing spores. The mushroom fruited at the Bank of Edible
and Medicinal Mushroom (BEMF), University of Barcelona (http://www.ub.es/bemf)
. (Magnification, ca. 4000×)
|
