COMMUNICATION TUBE ALIGNMENT. “Attractants such as food increase the local oscillation frequency and initiate contraction waves propagating outwards. Tubes within the network that lie parallel to the direction of propagation are reinforced, as cytoplasm moves towards them, while perpendicular tubes decay. The reinforced tubes become thicker, the tubes that link the network via the shortest path accommodate the highest flow per unit time and the network length becomes optimised by positive feedback.”
https://academic.oup.com/femsre/article/40/6/798/2400841