Zygomycota
Lipid droplets involved in graviperception

Complex of apical lipid globules are also involved in graviperception. These lipids are clustered in cellular structures, complex of lipid globules, about 0.1mm below the very tip of the apex. (Fig. 2) The globules migrate to the columella when the sporangium is formed. In mature stage this complex is believed to act as a gravireceptor due to its floatability. Mutants that lack this lipid complex show greatly lowered gravitropic response.
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