Plant gravity sensing

Sack, F. D.

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NASA NTRS · 20040112291

Plant gravity sensing

Sack, F. D.

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Abstract

This review of plant gravity sensing examines sensing in organ gravitropism, sensing in single-cell gravitropism, and nongravitropic sensing. Topics related to sensing in organ gravitropism are (1) identification of the gravitropic susceptors, including intracellular asymmetry in equilibrium position and after reorientation, susceptor signal-to-noise ratio, signal integration over threshold stimulation periods, intracellular asymmetry and gravitropic competence, and starch deficiency and gravitropic competence; (2) possible root statocytes and receptors, including identification of presumptive statocytes, cytology, and possible receptors and models of sensing; and (3) negatively gravitropic organs, including identification and distribution of presumptive statocytes and cytology and possible receptors. Topics related to nongravitropic sensing include gravitaxis, reaction wood, gravimorphogenesis, other gravity-influenced organ movements, and cytoplasmic streaming.

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Non-NASA Center Review, Academic Review NASA Discipline Plant Biology Gravitropism/physiology Plants/cytology/growth & development/ultrastructure Plant Root Cap/cytology/growth & development/physiology/ultrastructure Gravity Perception/physiology Plastids/physiology Plant Roots/cytology/growth & development/physiology/ultrastructure Algae, Green/cytology/growth & development/physiology/ultrastructure Bryopsida/cytology/growth & development/physiology/ultrastructure Support, U.S. Gov't, Non-P.H.S Endoplasmic Reticulum/physiology

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Sack, F. D.. 1991-01-01. Plant gravity sensing. https://ntrs.nasa.gov/citations/20040112291

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