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Full Description
This volume contains the papers, presented during a conference, organized jointly by the "Opzoekingsstation van Gorsem" and the "Limburgs Universitair Centrum", Belgium from 22 to 27 August 1982. For this third meeting, the chosen topic was the effect of different stresses on photosynthesis. Most of the research in this field is realized on water stress and temperature stress; this situation is refllected in the conference programme. However, the imp- tance of the other factors such as light, CO , salinity, anaerobiosis, was 2 also emphasized especially during the important discussion sessions. We express our gratitude to Drs. J. Gale, P. Jarvis, G.H. Krause, P.E. Kriedemann and P.S. Nobel for their excellent leadership during the discussion sessions. Particular thanks are also due to Dr. H.‾i. Woolhouse who gave us an excellent inaugural address and whose erudition largely contributed to the interest of the discussions. For the first time in our experience of editors, we decided to use camera ready copies in order to publish more rapidly the proceedings and at a lower price. For a lot of reasons (among other things the bad choice of type of letter to be used and the choice of instructions to authors which were not perfectly followed by the authors), the technical presentation of this book will appear as non homogeneous; we accepted this lack of homogeneity with the hope tbat the publication time would be shorter in spite of the fact that, some authors delivered their manuscript with delay.
Contents
Inaugural Address : The effects of stress on photosynthesis.- Session 1 : Water Stress.- Molecular aspects of photosynthesis at low leaf water potentials.- Integration of biochemical processes in the physiology of water stressed plants.- Water stress resistance of photosynthesis : some aspects of osrrotic relations.- Photosynthetic activity and osmotic volumes of isolated intact chloroplasts and of cells in leaf tissue from various plants under osmotic stress.- The influence of water stress on photosynthesis in a barley crop.- Effects of water stress on CO2 exhange in apple.- Morphological and physiological adaptations for maintaining photosynthesis under water stress in apple trees.- Water relations of plant cells.- Photosynthesis, stomatal conductance and leaf water potential during water stress situations in young rubber trees (Hevea brasiliensis) under tropical conditions.- Enhancement of maintenance respiration under water stress.- Net photosynthesis and water status of apple seedlings under developing drought conditions : effects of fungicide pre-treatment.- The effect of water stress on greening of primary barley (Hordeum vulgare L. cv Menuet) leaves.- Effect of water stress on rate of photosynthesis, transpiration and chloroplast ultrastructure in willow leaves.- Effect of the simulation procedures of root water uptake on the assessment of the plant water stress (abstract only).- Simulation of water stress in Brachiaria ruziziensis under a high evaporative demand (abstract only).- Session 2 : Stress and Crassulacean Acid Metabolism.- Responses of crassulacean acid metabolism (CAM) to increasing and decreasing water stress in plants in the southern Namib desert.- Low and high temperature influences on cacti.- Regulation of carbon metabolism in Mesembryanthemum crystallinum.- Welwitschia mirabilis Hook. Fil. - A CAM plant ? Ecophysiological investigations in the central Namib desert.- Session 3 : Temperature Stress.- Low temperature stress and membrane lipid phase in the blue-green algae.- Inactivation and protection of isolated thylakoid membrandes during freezing.- Low temperature effects on photosynthesis in conifers.- Plant relation to heat stress at low oxygen and high CO2-concentration.- Chilling-induced inhibition of photosynthesis in tomato.- Photosynthesis in C4 plants at low temperatures.- Effects of freezing stress on photosynthetic reactions in cold acclimated and unhardened plant leaves.- The effect of temperature on chlorophyll fluorescence induction of cucumber lines differing in growth capacity at suboptimal conditions.- Effects of low temperatures on barley chloroplast membranes.- Effects of cold on CO2 exchange in winter rape leaves.- Molecular species of phosphatidylglycerols associated with the chilling sensitivity of higher plants.- Investigations on the heat-sensitivity of thylakoid membranes in spinach leaves : the influence of light and short-time acclimatization to high temperatures.- Session 4 : Other Stresses and Combination of Different Stresses.- The effect of salt species and concentration on photosynthesis and growth of pea plants (Pisum sativum L. cv. Alaska).- Salt tolerance and root-zone aeration in Helianthus annuus (L.) - Growth and stomatal response to solute uptake.- The effect of heat and salinity stress on the carbon balance of Xanthium strumarium.- Compensatory mechanisms in the energy metabolism of seedlings under root anaerobiosis.- Chloroplast development and photosynthesis in Echinochloa (Barnyard grass) and rice : 02 and flooding stress.- Effect of high light and high light stress oncomposition, function and structure of the photosynthetic apparatus.- Multiple effects of heavy metal toxicity on photosynthesis.
