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Gravisensing: Ionic responses, cytoskeleton and amyloplast behaviour

Stomgren Allen, N; Chattaraj, P; Collings, David; Johannes, Eva


In Zea mays L., changes in orientation of stems are perceived by the pulvinal tissue, which responds to the stimulus by differential growth resulting in upward bending of the stem. Gravity is perceived in the bundle sheath cells, which contain amyloplasts that sediment to the new cell base when a change in the gravity vector occurs. The mechanism by which the mechanical signal is transduced into a physiological response is so far unknown for any gravity perceiving tissue. It is hypothesized...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Advances in Space Research
DOI: 10.1016/S0273-1177(03)90404-2


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