Download or read book Plant Water Status Affects Acid Metabolism and Gas Exchange in Succulents written by Zac Hanscom and published by . This book was released on 1977 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Relations of Plants and Soils written by Paul J. Kramer and published by Academic Press. This book was released on 1995-07-17 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Relations of Plants and Soils, successor to the seminal 1983 book by Paul Kramer, covers the entire field of water relations using current concepts and consistent terminology. Emphasis is on the interdependence of processes, including rate of water absorption, rate of transpiration, resistance to water flow into roots, soil factors affecting water availability. New trends in the field, such as the consideration of roots (rather than leaves) as the primary sensors of water stress, are examined in detail. Addresses the role of water in the whole range of plant activities Describes molecular mechanisms of water action in the context of whole plants Synthesizes recent scientific findings Relates current concepts to agriculture and ecology Provides a summary of methods
Download or read book Crassulacean Acid Metabolism written by M. Kluge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acid metabolism of certain succulent plants, now known as Crassulacean Acid Metabolism (CAM) has fascinated plant physiologists and biochemists for the last one and a half centuries. However, since the basic discoveries of De Saussure in 1804 that stem joints of Opuntia were able to remove CO from the 2 atmosphere during the night, and of Heyne in 1815 (see Wolf, 1960) that organic acids accumulate in the leaves of Bryophyllum calycinum during the night, the two main aspects of CAM, diurnal CO gas exchange and metabolism of malic acid, 2 have first been studied nearly independently. Hence, it is not surprising that most research to elucidate the mechanism of CAM has been during the last 15 years since CO exchange and malate metabolism were studied and interpreted in its 2 context. These efforts finally resulted in a clear realization that the CAM phenom enon is a variation on the mode of how plants can photosynthetically harvest CO from the atmosphere. 2 The interpretation of CAM in this sense was stimulated by the discovery of another variant of photosynthesis, the C -pathway (see Black, 1973; Hatch and 4 Slack, 1970; Hatch, 1976). Because this newly discovered photosynthetic pathway is recognized to be very closely related to the CAM pathway, the work on the latter became intensified during these last years.
Download or read book Shifts in the Carbon Metabolism of Succulent Plants Induced by Water Deprivation written by Lisa Rayder and published by . This book was released on 1982 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crassulacean Acid Metabolism written by Klaus Winter and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crassulacean acid metabolism (CAM) represents one of the best-studied metabolic examples of an ecological adaptation to environmental stress. Well over 5 % of all vascular plant species engage in this water-conserving photosynthetic pathway. Intensified research activities over the last 10 years have led to major advances in understanding the biology of CAM plants. New areas of research reviewed in detail in this book include regulation of gene expression and the molecular basis of CAM, the ecophysiology of CAM plants from tropical environments, the productivity of agronomically important cacti and agaves, the ecophysiology of CAM in submerged aquatic plants, and the taxonomic diversity and evolutionary origins of CAM.
Download or read book Water and Plant Life written by O.L. Lange and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Plant Respiration written by Hans Lambers and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Respiration in plants, as in all living organisms, is essential to provide metabolic energy and carbon skeletons for growth and maintenance. As such, respiration is an essential component of a plant’s carbon budget. Depending on species and environmental conditions, it consumes 25-75% of all the carbohydrates produced in photosynthesis – even more at extremely slow growth rates. Respiration in plants can also proceed in a manner that produces neither metabolic energy nor carbon skeletons, but heat. This type of respiration involves the cyanide-resistant, alternative oxidase; it is unique to plants, and resides in the mitochondria. The activity of this alternative pathway can be measured based on a difference in fractionation of oxygen isotopes between the cytochrome and the alternative oxidase. Heat production is important in some flowers to attract pollinators; however, the alternative oxidase also plays a major role in leaves and roots of most plants. A common thread throughout this volume is to link respiration, including alternative oxidase activity, to plant functioning in different environments.
Download or read book Vascular Plants as Epiphytes written by Ulrich Lüttge and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: In his lectures my teacher Karl Mägdefrau used to say that one only becomes a real plant scientist when one enters a tropical rainforest. For me this initiation occurred in 1969 in northern Queensland, Australia, and was associated with the greatest excitement. On another level it received confirmation when I set out in 1983 together with some friends and colleagues for the first detailed ecophysiological studies of epiphytes in the wet tropics in situ in the island of Trinidad and later for similar work in Venezuela. This then promoted the idea of organizing a special symposium on "The evolution and ecophysiology of vascular plants as epiphytes" during the XIV International Botanical Congress in luly 1987 in Berlin, and to ask some of the speakers to produce chapters for a small monograph on the interesting ecologically defined group of plants "epiphytes" as presented in this volume of "Ecological Studies". The enthusiasm of the participants of the symposium giving reports and adding to the discussion was most stimulating, and it appears that epiphytes might gain well-deserved, wider consideration in the future. The cooperation with the authors of this book was very pleasant and I appreciated the new contacts established with adepts of the "epiphyte community". The chapters were organized and arranged covering first more gen eral aspects with setting the scene in Chapter 1, the evolution of epi phytism in Chapter 2 and the role of CO -concentrating mechanisms in 2 Chapter 3.
Download or read book Water in plants Bibliography written by and published by . This book was released on 1990 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental and Biological Control of Photosynthesis written by R. Marcelle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reports the proceedings of a meeting held in the 'Limburgs Universitair Centrum' , Diepenbeek, Belgium, August 26 to 30, 1974. In convening this meet ing, my aim was to bring together a small number of specialists working on photosynthesis of course but also always keeping in mind that plants are in fluenced by their environment (temperature, light quality and intensity, air com position, daylength . . . . . ) and can differently react according to their stage of deve lopment. In general, all these specialists work on whole plants cultivated in well known conditions (they are not 'market spinach specialists') but, when necessary, give up the idea of measuring photochemical activities in isolated they don't chloroplasts, enzyme kinetics . . . etc. It is noticeable that about 50% of them are working in laboratories directly involved with applied research in agriculture or forestry. The format of the meeting was intentionally kept small but it allowed generous time for discussion; thanks are due to Drs. O. BJÖRKMAN, J. W. BRADBEER, M. M. LUDLOW and C. B. OSMOND for taking the chairs during these discussions. In such a small meeting, the choice of invited scientists was really a personnal one and thus reflected my own fields of interest. When planning the conference, I was continually divided between the wish for inviting other interesting people and the necessity of keeping time free for discussions.
Download or read book Physiological Response of Crassulacean Acid Metabolism in Agave Americana to Water and Nitrogen written by Andrew J. Fox and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Agave americana is an obligate CAM species currently being investigated as a promising bioenergy crop. Little is known about the physiological response of these plants to nutrients and this study sought to resolve how availability of water and nitrogen impacted biomass accumulation, gas exchange rates, and accumulation of nitrogen. Thirty A. americana plants were subjected to differing treatments of water (260 mm y-1, 650 mm y-1) and nitrogen (0 g m2, 5 g m2, 10 g m2) for 11 months. At the end of the 11- month experiment, biomass accumulation differed significantly with water treatments, but was not dependent on nitrogen availability; there was also no apparent interactive effect between water and nitrogen. Gas exchange rates were also dewerful devices in framing societal issues and shaping public discourse.
Download or read book Perspectives in Biophysical Plant Ecophysiology written by William Kirby Smith and published by UNAM. This book was released on 2009 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Park S. Nobel pioneered the coupling of cellular physical chemistry with plant physiology, providing a sound physicochemical interpretation of the laws of diffusion to a rapidly expanding field of plant physiological ecology. His classical textbook is the only one of its kind to provide an extensive array of quantitative problems and solutions in the field of plant biophysics and ecophysiology, extending from the molecular to the ecological level. In this festschrift, former graduate students and postdocs, as well as colleagues of Prof. Nobel present a series of reviews that include scales from sub-cellular to global, and topics that range from desert succulent biology to the physiology of alpine plants, encompassing basic research and applications in agronomy and conservation biology. This state-of-the-field survey provides current and useful information for professionals and graduate students, while illustrating the broad span of the influence that Nobel's career has had on modern ecophysiology.
Download or read book Environmental Adaptations and Stress Tolerance of Plants in the Era of Climate Change written by Parvaiz Ahmad and published by Springer Science & Business Media. This book was released on 2011-12-02 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: Climate change is a complex phenomenon with a wide range of impacts on the environment. Biotic and abiotic stress are a result of climate change. Abiotic stress is caused by primary and secondary stresses which are an impediment to plant productivity. Prolonged exposure to these stresses results in altered metabolism and damage to biomolecules. Plants evolve defense mechanisms to withstand these stresses, e.g. synthesis of osmolytes, osmoprotectants, and antioxidants. Stress responsive genes and gene products including expressed proteins are implicated in conferring tolerance to the plant. This volume will provide the reader with a wide spectrum of information, including vital references. It also provides information as to how phytoconstituents, hormones and plant associated microbes help the plants to tolerate the stress. This volume also highlights the use of plant resources for ameliorating soil contaminants such as heavy metals. Dr. Parvaiz is Assistant professor in Botany at A.S. College, Srinagar, Jammu and Kashmir, India. He has completed his post-graduation in Botany in 2000 from Jamia Hamdard New Delhi India. After his Ph.D from the Indian Institute of Technology (IIT) Delhi, India in 2007 he joined the International Centre for Genetic Engineering and Biotechnology, New Delhi. He has published more than 20 research papers in peer reviewed journals and 4 book chapters. He has also edited a volume which is in press with Studium Press Pvt. India Ltd., New Delhi, India. Dr. Parvaiz is actively engaged in studying the molecular and physio-biochemical responses of different plants (mulberry, pea, Indian mustard) under environmental stress. Prof. M.N.V. Prasad is a Professor in the Department of Plant Sciences at the University of Hyderabad, India. He received B.Sc. (1973) and M.Sc. (1975) degrees from Andhra University, India, and the Ph.D. degree (1979) in botany from the University of Lucknow, India. Prasad had published 216 articles in peer reviewed journals and 82 book chapters and conference proceedings in the broad area of environmental botany and heavy metal stress in plants. He is the author, co-author, editor, or co-editor for eight books. He is the recipient of Pitamber Pant national Environment Fellowship of 2007 awarded by the Ministry of Environment and Forests, Government of India.
Download or read book Environmental Control of Plant Growth written by L.T. Evans and published by Elsevier. This book was released on 2012-12-02 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental Control of Plant Growth consists of the proceedings of a symposium held at Canberra, Australia, in August 1962. The symposium aims to consider the natural microenvironments of plants and the associations between natural and controlled environments. It also considers the physiological and genetic bases of responses by plants to environmental conditions. The book contains 24 chapters and discusses the physics of plant environment, as well as the physical quantities within plant-air layers. It also elucidates the energy and water balance, light relations, gas exchange, and energy relations in plant communities. The book also looks into the respiration of various organs and of whole plants. Lastly, the effects of the environment, including “climatic factors, on the metabolism of plant cells are addressed.
Download or read book Effects of Heterogeneous Soil Water Localized Salinity and Increased Atmospheric Carbon Dioxide Concentration on the Physiology of Desert Succulents written by Eric Alexander Graham and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Path of Carbon in Photosynthesis written by James Alan Bassham and published by . This book was released on 1950 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Metabolic Adaptations in Plants During Abiotic Stress written by Akula Ramakrishna and published by CRC Press. This book was released on 2018-09-03 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Key features: Serves as a cutting-edge resource for researchers and students who are studying plant abiotic stress tolerance and crop improvement through metabolic adaptations Presents the latest trends and developments in the field of metabolic engineering and abiotic stress tolerance Addresses the adaptation of plants to climatic changes Gives special attention to emerging topics such as the role of secondary metabolites, small RNA mediated regulation and signaling molecule responses to stresses Provides extensive references that serve as entry points for further research Metabolic Adaptations in Plants during Abiotic Stress covers a topic of past, present and future interest for both scientists and policy makers as the global challenge of climate change is addressed. Understanding the mechanisms of plant adaptation to environmental stresses can provide the necessary tools needed to take action to protect them, and hence ourselves. This book brings together recent findings about metabolic adaptations during abiotic stress and in diverse areas of plant adaptation. It covers not only the published results, but also introduces new concepts and findings to offer original views on the perspectives and challenges in this field.
