Hormonal Regulation of Development III: Role of Environmental FactorsRichard P. Pharis, David Reid R. P. PHARIS and D. M. REID The idea of a separate Encydopedia volume dealing with the "interrelations of plant hormones with factors in the environment of the plant, and its organs and tissues" originated with N. P. KEFFORD, and we are most appreciative of the help and advice provided by Prof. KEFFORD in the formative stages of this volume. We have thus interpreted "environment" very broadly to indude not only factors external to the plant, e. g. , gravity, light, temperature, wind, mechanieal wounding, water, organism s (induding pollen), and magnetic and electric stimuli, but internaI factors as well (e. g. , nutrients, both inorganic and photoassimilate, direction, and time). In our definition of "hormonaI effect", or "hormonaI involvement", we have asked our authors to take a broad ap proach, and to examine not only phenomena that are mediated by the known plant hormones, but to discuss as well a wide variety of processes and events where hormonal involvement is implied through more indirect analyses and observations. The volume begins with environmental factors internaI to the plant; R. J. WEAVER and J. O. JOHNSON thus examine "hormones and nutrients", their inter relationship in movement, accumulation, and diversion. As one studies a plant during its rapid growth phase, and later as maturation and aging proceed, it becomes apparent that time is an environmental cue of great significance, one which may exert a major influence via hormonal messages. |
Contents
Introduction | 1 |
Pollen Symbionts and SymbiontInduced Structures | 15 |
Possible Regulatory Points for HormoneDirected Transport | 20 |
Copyright | |
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abscisic acid activity Ann Bot Annu Rev Plant apical applied assimilates asymmetry auxin auxin transport basipetal Biochem Biol buds Ca2+ changes circadian coleoptiles concentration culture curvature cytokinins differentiation dormancy effect elongation endogenous environmental epinasty ethylene ethylene production exogenous Exp Bot factors flowering formation GA's geotropic germination gibberellic gibberellic acid gibberellin gradient growth regulators hypocotyl increase indoleacetic acid induced inhibition inhibitor initiation JAFFE juvenile kinetin KOUKKARI leaf movements leaves levels light mature mechanism membrane metabolism occur organs oscillations petiole PHARIS phase Phaseolus phloem photoperiodic photosynthesis phototropic Physiol Plant physiology phytochrome Pisum Plant Cell Plant growth substances plant hormones polar pollen potential Proc promote response Rev Plant Physiol rhythmic rhythms role roots seedlings sensitivity shoot Soc Hortic Sci species stem stimulation stomatal studies sunflower synthesis temperature tion tissue tomato translocation treatment tuber Vitis vinifera Wareing PF water stress xylem ZEEVAART