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The scale - which Carol provided via her stage micrometer - is at 10 micron intervals. The spores were max 21 length in water but slightly larger in the neat food dye. As Carol points out - spores tend to be measured in aqueous ammonia - which is nasty stuff - so meaurements of spores will vary somewhat depending what you use. Top left - water. Top right, a discharged spore which ought to be the ones you measure - but the frosted specimens produced very few. Top centre the barely swollen-tipped simple paraphyses. Bottom left, asus and spores in Melzer's - the tip stains blue (not so with Tarzetta). Bottom middle, the ascus "lid". Bottom right, ascus and spores in red food colouring.
In the Picturing to Learn project, Harvard undergraduates were asked to create a freehand drawing to explain to a high school senior how the motions of large and small particles suspended in a fluid are affected by an increase in temperature of the fluid. Picturing to Learn project. Source: www.picturingtolearn.org
Confocal microscopy! These are thymocytes I induced to go into apoptosis (programmed cell death) by irradiation.
Blue = a nuclear dye
Red = annexinV, a marker of early apoptotic cells
Green = our transgenic autoantibody, which we are trying to characterize
Taken with Bio-Rad LaserSharp2000.
An orange Pennate Diatom, magnified 200x. Collected from a patch of orange mud at the Weep Site, near Drawbridge, in the Don Edwards San Francisco Bay National Wildlife Reserve. This sample was collected in early winter. In August, this diatom was the major species of the bottom mat of the Weep stream. Since then it has been displaced to one small patch by the needle-like Diatom Cylindorthecia.