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. |
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Page 263
... elongation and to cause stomatal closure . It seems possible , however , that at least one of their perhaps multiple roles in geotropism is stimulatory : they might put the gravity detection or trans- duction systems into a receptive ...
... elongation and to cause stomatal closure . It seems possible , however , that at least one of their perhaps multiple roles in geotropism is stimulatory : they might put the gravity detection or trans- duction systems into a receptive ...
Page 314
... elongation may be reduced under SD ( relative to LD ) in plants ( woody and otherwise ) which do not show SD - induced dormancy . Within this latter group it is possible to distinguish two categories of response : - rosette plants where ...
... elongation may be reduced under SD ( relative to LD ) in plants ( woody and otherwise ) which do not show SD - induced dormancy . Within this latter group it is possible to distinguish two categories of response : - rosette plants where ...
Page 316
... elongation ( METZGER 1983 ) ; and strawberry , where stem elongation occurs in response to GA , application even though strawberry is normally a rosette plant in both SD and LD ( TAFAZOLI and VINCE - PRUE 1978 ) . 3 Although a SDP , the ...
... elongation ( METZGER 1983 ) ; and strawberry , where stem elongation occurs in response to GA , application even though strawberry is normally a rosette plant in both SD and LD ( TAFAZOLI and VINCE - PRUE 1978 ) . 3 Although a SDP , the ...
Contents
Introduction | 1 |
Possible Regulatory Points for HormoneDirected Transport | 20 |
Mechanisms | 65 |
Copyright | |
31 other sections not shown
Common terms and phrases
abscisic acid activity Ann Bot Annu Rev Plant apical applied assimilates asymmetry auxin auxin transport Avena basipetal bean Biol buds C₂H4 Ca2+ cambial changes clinostat 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 gravitropism growth regulators Heidelberg New York Helianthus annuus higher plants hypocotyl increase indoleacetic acid induced inhibition inhibitor initiation JAFFE juvenile kinetin leaf leaves levels light London New York mechanism membrane meristem metabolism movement organ petiole Pharis Phaseolus phloem photoperiodic photosynthesis phototropism Physiol Plant phytochrome Plant growth substances plant hormones polarity pollen potential promoted response Rev Plant Physiol role root seedlings sensitivity shoot species Springer stem stimulation stomatal studies sunflower synthesis temperature tion tissue tomato translocation treatment tuber Wareing PF water stress xylem ZEEVAART