Article
Gravity sensing in moss protonemata.
Advances in space research : the official journal of the Committee on Space Research (COSPAR) - 1 Jan 2001
Sack F D, Schwuchow J M, Wagner T, Kern V
Abstract excerpt
Moss protonemata are a valuable system for studying gravitropism because both sensing and upward curvature (oriented tip growth) take place in the same cell. We review existing evidence, especially for Ceratodon purpureus, that addresses whether the mass that functions in sensing is that of amyloplasts that sediment. Recent experiments show that gravitropism can take place in media that are denser than the apical...
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