When the free ends of the hyphae emerge again into the air they swell up into spherical bodies which may either fall off and behave as conidia, each putting out a germ-tube and infecting the host; or the germ-tube itself swells up into a zoosporangium which develops a number of zoospores.
In the rotting tissues branches of the older mycelium similarly swell up and form antheridia and oogonia (fig.
As regards the mode of action of agglutinins, Gruber and Durham considered that it consists in a change in the envelopes of the bacteria, by which they swell up and become adhesive.
If the rust so covered up has not begun to pit the iron the chances are that it will do no harm; but, if it is already well developed and of some thickness, it will have enough oxidizing agents in its pores to develop more oxide, and to swell up and crack the paint.
Crystals of ordinary borax swell up to a very great extent on heating, losing their water of crystallization and melting to a clear white glass.
In the corner room at the club, members gathered to read these broadsheets, and some liked the way Karpushka jeered at the French, saying: They will swell up with Russian cabbage, burst with our buckwheat porridge, and choke themselves with cabbage soup.
The cell-walls in some forms swell up into a gelatinous mass so that the cell appears to be surrounded in the unstained condition by a clear, transparent space.
They are odourless and tasteless, and some yield clear aqueous solutions - the real gums - while others swell up and will not percolate filter paper - the vegetable mucilages.