statolith

statolith
statolithic, adj.
/stat"l ith/, n.
1. Zool. any of the granules of lime, sand, etc., contained within a statocyst.
2. Bot. an inclusion, as a starch grain, that by a change in position within the cells of an organ or part is assumed to cause a corresponding change in position of the organ or part.
[1895-1900; stato- (see STATOBLAST) + -LITH]

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Universalium. 2010.

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  • Statolith — Statoliths are a specialized form of amyloplasts involved in gravity perception by plants.These specialized amyloplasts are denser than the cytoplasm and can sediment according to the gravity vector. They are found in a special subset of cells of …   Wikipedia

  • statolith — noun Etymology: International Scientific Vocabulary Date: 1900 1. any of the usually calcareous bodies suspended in a statocyst 2. any of various starch grains or other solid bodies in the plant cytoplasm that are held to be responsible by… …   New Collegiate Dictionary

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  • statolith — n. [Gr. statos, fixed; lithos, stone] A movable concretion of granules of sand, lime, diatom shells, or quartz grains contained in a statocyst, that functions in equilibrium; lithite …   Dictionary of invertebrate zoology

  • statolith — (1) Bot. A type of amyloplast found in root tip cells of higher plants. It can sediment within the cell under the influence of gravity, and is thought to be involved in the detection of gravity in geotropism. (2) Zool. A sand grain or a structure …   Dictionary of molecular biology

  • statolith — noun A specialized form of amyloplast involved in graviperception by plant roots and most invertebrates. Syn: otolith …   Wiktionary

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