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Introduction The NASA SpaceGravitational Biology Program
ROBERT S BANDURSKI
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Abstract Accomplishments Finding activity altered animals ASGSB Bulletin asymmetry auxin auxin transport Bandurski bone formation Ca2+ calcium calmodulin cell cycle cell wall cellular centrifuged changes circadian circadian rhythm clinostat coleoptile collagenase components concentration culture cytoplasmic decrease demonstrated Description of Research determine differentiation effects embryos endogenous environment enzyme ephyrae exposure fibers function gene gravistimulated gravitropic response gravitropism growth hormone hair cells horizontal hypergravity increased induced inhibition inhibitor laboratory light lignification mammalian mechanical stress metabolism microgravity molecular mRNA muscle mutant NASA nerve neural neurons normal occurs organs osteoblast otolith pathways peroxidase phosphorylation plant growth Plant Physiology potential preosteoblast prostaglandin protein pulvini regulation renin rhopalia rhythm role root cap rotational seedlings semicircular canal sensitivity sensory signal Significance Space spaceflight specific statoconia statoconial membrane statocyst stem stimulation stretch-activated ion channels studies suggests surface synthesis temperature tissue transduction University vestibular system vivo wall peroxidase weightlessness