Statolith may refer to: A structure in the statocyst, which allows certain invertebrates to sense gravity and balance; A structure in the statocyte, cells which allow plants to sense gravity

…or more small granules, called statoliths, that rest on numerous small setae. Any change in orientation causes the statoliths to impinge on the setae at a different angle, and this information is relayed to the brain so that corrective action can be taken. Finally, other setae are chemosensory; they detect…

The statocyst consists of a sac-like structure containing a mineralised mass (statolith) and numerous innervated sensory hairs (setae). The statolith's inertia causes it to push against the setae when the animal accelerates.

2021年6月28日 · Statolith has two major meanings in biology. In zoology, it pertains to otolith. It is a particle that is crystalline in structure due to its calcium carbonate composition. It is found in the inner ear of vertebrates. In particular, it adheres to the gelatinous membrane of the maculae of the utricle and the saccule. Saccule and utricle of the ...

A recent study by Bérut et al. showed that statolith sedimentation in gravistimulated endodermal cells quickly responds even to small changes in bending angle. Statoliths therefore behave less like a pile of stones and more like a liquid.

2021年2月8日 · The most widely accepted model for plant gravity sensing is the starch-statolith hypothesis, in which intracellular sedimentation of the starch-filled organelle (amyloplast) plays a crucial...

Gravity is a major cue for the proper growth and development of plants. The response of plants to gravity implies starch-filled plastids, the statoliths, which sediments at the bottom of the gravisensing cells, the statocytes.

The meaning of STATOLITH is any of the usually calcareous bodies suspended in a statocyst.

2018年5月18日 · A membrane-bound group of starch grains (see amyloplast) in plant cells that is believed to act as a sensor to gravity. Starch statoliths are found in cells at the root tips and in the tissues close to the vascular bundles in shoots; under the influence of gravity they sink to the bottom of the cell.

(in plants) a solid inclusion within a cell, such as a starch granule, by means of which the position of the plant in relation to gravity is thought to be perceived. (in animals) a granule that stimulates sensory cells in a STATOCYST as the animal moves. see OTOLITH.