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'Galanthus nivalis’ ('Amaryllidaceae’): anatropous ovule. In-situ observations in the opened embryo sac (time-lapse sequence), e.g. double fertilisation - fusion of the nucleoli of the egg cell and the...
Computer-calculated wind vector fields show changes of the vertical motions over southern Florida within the sea breeze circulation. The colouring indicates the formation of clouds and simplifies...
The development of the sugar beet nematode on seedling roots of rape ('Brassica napus’) in aseptic agar culture is shown in detail: penetration of the larvae into the root cells; further development within...
Late blight fungus ('Peronosporaceae’). Pathogenesis and vegetative development of the facultative parasite on and in the potato leaf of the susceptible First Early Dutch variety. On the leaf ribs the...
Spruce bark beetle. On a spruce a male ‘Pityogenes chalcographus’ is looking for a suitable place for boring; it bores a mating chamber in the bark. Although the male resists, several females force their...
The turbulent, circulatory or rotational streaming of cytoplasm and its variations (tramline-, mantle- and fountain-streaming) as well as shuttle-streaming shown in the following: ‘Allium’,...
A mechanical model for soliton, antisoliton and breather is presented as a solution of the Sinus-Gordon equation. Collision and penetration of solitons, anti-solitons and breathers. Breakdown of a pulse into...
A computer colour simulation in which 12 typical 3-dimensional trajectories of protons with constant energy and differing collision parameters during energy interchange with deuterium molecules (slow motion...
Computer-calculated movement phases of the diffusion of molecules in a two-dimensional model gas plasticize Brownian movement, temperature dependent effusion into vacuum, self diffusion of marked particles...
This ciliate prefers the filamentous blue-green alga ‘Oscillatoria formosa’ as food. It ingests the filaments with its cytopharyngeal basket. The rigid cell walls of the algae are dissolved rapidly by...
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