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Fig. 1. Examples of egg cordons deposited after treatment. (A) An egg cordon
produced in response to the NO donor SNAP
(S-nitroso-N-acetyl-penicillamine) that began with empty egg
capsules and ended with capsules filled with eggs. The eggs are filled with
yolk, which is yellow. The portions of the egg cordon deposited earlier are
white, reflecting the lack of yolk and eggs in the capsules. Note that both
the white and the yellow portions of the cordon are knotted and raveled,
reflecting identical tamping and weaving behaviors that accompany egg
deposition. (B) A section of an egg cordon produced in response to BC
homogenate, showing capsules filled with numerous eggs. (C–E) Sections
of egg cordons laid in response to NO. (C) The cordons contain empty capsules;
this is the most common appearance of the cordons. (D) At the start of
egg-laying, cordons sometimes lacked capsules. (E) As deposition of a cordon
similar to C progressed, eggs sometimes began to appear in some capsules.
Scale bar in D is for B–E.
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