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 16
... internodal segments harvested for radioassay showed a greater accumulation of radioactivity in the internodes of IAA - treated plants than in those of the controls , and the effect of the growth - regulator mixture was greater than that ...
... internodal segments harvested for radioassay showed a greater accumulation of radioactivity in the internodes of IAA - treated plants than in those of the controls , and the effect of the growth - regulator mixture was greater than that ...
Page 224
... internodes was in the lower halves . At the same time , net GA activity was depressed in the node - pulvini but was doubled in the internodes relative to vertical controls . The net increase in the internodes was accounted for mainly by ...
... internodes was in the lower halves . At the same time , net GA activity was depressed in the node - pulvini but was doubled in the internodes relative to vertical controls . The net increase in the internodes was accounted for mainly by ...
Page 306
... internodes . J Exp Bot 25 : 733–739 Potts WC , Reid JB , Murfet IC ( 1982 ) Internode length in Pisum . I. The effect of the Le / le gene difference on endogenous gibberellin - like substances . Physiol Plant 55 : 323-328 Powell RD ...
... internodes . J Exp Bot 25 : 733–739 Potts WC , Reid JB , Murfet IC ( 1982 ) Internode length in Pisum . I. The effect of the Le / le gene difference on endogenous gibberellin - like substances . Physiol Plant 55 : 323-328 Powell RD ...
Contents
Introduction | 1 |
Possible Regulatory Points for HormoneDirected Transport | 20 |
21 | 42 |
Copyright | |
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abscisic acid activity Annu Rev Plant apical applied assimilates asymmetry auxin auxin transport Avena bacteria basipetal Biol buds C₂H4 Ca2+ changes clinostat cold hardiness coleoptiles concentration culture curvature cytokinins differentiation dormancy effect elongation endogenous environmental epinasty ethylene ethylene production exogenous Exp Bot factors flowering formation fungi GA's geotropic germination gibberellic acid gibberellin gradient gravitropism growth regulators Heidelberg New York higher plants hypocotyl increase indoleacetic acid induced inhibition inhibitors initiation interaction JAFFE juvenile kinetin leaf leaves levels light mechanism membrane metabolism movement nodules organ petiole Pharis Phaseolus phloem photoperiod photosynthesis phototropism Physiol Plant physiology phytochrome Plant Cell Plant growth substances plant hormones polarity pollen potential promoted response Rev Plant Physiol rhythms 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