In higher plants, the shoot and the root generally show negative and positive gravitropism,
respectively. To elucidate the molecular mechanisms involved in gravitropism, we have …

Gravitaxis, gravikinesis, and gravitropism are different graviresponses found in protists and
plants. The phenomena have been intensively studied under variable stimulations ranging …

Abstract Changes in cytoplasmic Ca2+ concentration ([Ca2+] i) have been proposed to be
involved in signal transduction pathways in response to a number of stimuli, including …

The starch statolith hypothesis of gravity sensing in plants postulates that the sedimentation
of statoliths in specialized statocytes (columella cells) provides the means for converting the …

The gravitational field controls plant growth, morphology, and development. However, the
underlying transduction mechanisms are not well understood. Much indirect evidence has …

The internodal maize pulvinus responds to gravistimulation with differential cell elongation
on the lower side. As the site of both graviperception and response, the pulvinus is an ideal …

The article discusses the effects of real and simulated microgravity on certain cell
components and processes, using, among others, the recently received new data. A …

Plants sense positional changes relative to the gravity vector. To date, the signaling
processes by which the perception of a gravistimulus is linked to the initiation of differential …

Studies of plant tropisms, the directed growth toward or away from external stimuli such as
light and gravity, began more than a century ago. Yet biochemical, physiological, and …

The putative Ca2+-channel blocker LaCl3 prevented the gravitropic bending of cut
snapdragon (Antirrhinum majus L.) spikes (S. Philosoph-Hadas, S. Meir, I. Rosenberger, AH …