Physiological Plant Ecology II: Water Relations and Carbon AssimilationO. L. LANGE, P. S. NOBEL, C. B. OSMOND, and H. ZIEGLER In the original series of the Encyclopedia of Plant Physiology, plant water relations and photosynthesis were treated separately, and the connection between phenomena was only considered in special chapters. O. STOCKER edited Vol ume III, Pjlanze und Wasser/Water Relations of Plants in 1956, and 4 years later, Volume V, Parts I and 2, Die COrAssimilation/The Assimilation of Carbon Dioxide appeared, edited by A. PIRSON. Until recently, there has also been a tendency to cover these aspects of plant physiology separately in most text books. Without doubt, this separation is justifiable. If one is specifically inter ested, for example in photosynthetic electron transport, in details of photophos phorylation, or in carbon metabolism in the Calvin cycle, it is not necessary to ask how these processes relate to the water relations of the plant. Accordingly, this separate coverage has been maintained in the New Series of the Encyclopedia of Plant Physiology. The two volumes devoted exclusively to photosynthesis are Volume 5, Photosynthesis I, edited by A. TREBST and M. AVRON, and Volume 6, Photosynthesis II, edited by M. GIBBS and E. LATZKO. When consider ing carbon assimilation and plant water relations from an ecological point of view, however, we have to recognize that this separation is arbitrary. |
Contents
Productivity of Desert and Mediterraneanclimate Plants | 7 |
Functional Significance of Different Pathways of CO2 Fixation in Photo | 15 |
References | 30 |
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abscisic acid adaptation Amax assimilation rate BEWLEY bryophytes carbon cell wall changes chloroplasts CO₂ CO2 assimilation COWAN cuticles cuticular cutin decrease desiccation desiccation-tolerant diurnal drought ecological effects endodermis environment Exp Bot flow flux function GAFF germination gradient growth habitats HSIAO humidity hydraulic hydraulic conductance increase JARVIS Lange OL leaf conductance leaf water potential leaves levels lichens London New York measured mechanisms membrane mesophyll metabolism MILTHORPE moisture moss occur Oecologia osmotic adjustment pathway periderm photosynthesis Physiol Plant physiological Phytol Plant Physiol plasmodesmata poikilohydrous reduced rehydration resistance respiration response to water result ruralis SCHÖNHERR Schulze E-D seed soil water solutes species spores stomatal stomatal closure stomatal conductance stomatal responses studies surface temperature tion tissue transpiration rate trichomes turgor Turner NC water content water deficits water loss water permeability water potential water relations water stress water uptake water vapor xylem