Buch, Englisch, 176 Seiten, Format (B × H): 140 mm x 216 mm, Gewicht: 249 g
Reihe: Tertiary Level Biology
Buch, Englisch, 176 Seiten, Format (B × H): 140 mm x 216 mm, Gewicht: 249 g
Reihe: Tertiary Level Biology
ISBN: 978-0-216-93220-3
Verlag: Springer Netherlands
The study of solute transport in plants dates back to the beginnings of experimental plant physiology, but has its origins in the much earlier interests of humankind in agriculture. Given this lineage, it is not surprising that there have been many books on the transport of solutes in plants; texts on the closely related subject of mineral nutrition also commonly address the topic of ion transport. Why another book? Well, physiologists continue to make new discoveries. Particularly pertinent is the characterisation of enzymes that are able to transport protons across membranes during the hydrolysis of energy-rich bonds. These enzymes, which include the H + -A TPases, are now known to be crucial for solute transport in plants and we have given them due emphasis. From an academic point of view, the transport systems in plants are now appreciated as worthy of study in their own right-not just as an extension of those systems already much more widely investigated in animals. From a wider perspective, understanding solute transport in plants is fundamental to understanding plants and the extent to which they can be manipulated for agricultural purposes. As physiologists interested in the mechanisms of transport, we first set out in this book to examine the solutes in plants and where are they located. Our next consideration was to provide the tools by which solute movement can be understood: a vital part of this was to describe membranes and those enzymes catalysing transport.
Zielgruppe
Research
Autoren/Hrsg.
Fachgebiete
Weitere Infos & Material
1 Plants and Their Solutes.- 1.1 Solutes in cells.- 1.2 Localisation of solutes within cells.- 1.3 Solute concentrations and ion activities.- 1.4 Conclusions.- 1.5 Addendum.- 2 Membranes and the Study of Transport.- 2.1 Membrane structure.- 2.2 Membranes of plant cells.- 2.3 Obtaining membranes for transport studies.- 2.4 Driving forces for movement.- 2.5 Methods of studying transport through membranes.- 2.6 Properties of plant membranes.- 2.7 Water and osmosis.- 2.8 Addenda.- 3 Ion Transport Across the Plasma Membrane and Tonoplast.- 3.1 Active transport.- 3.2 Proton pumps.- 3.3 Redox systems.- 3.4 The transport of ions other than protons.- 3.5 Guard cells.- 3.6 CAM plants.- 3.7 Bacterial and yeast systems.- 4 Intra- And Intercellular Transport.- 4.1 Mitochondria.- 4.2 Chloroplasts.- 4.3 Cytoplasm.- 4.4 Intercellular transport.- 4.5 Glands.- 5 Ion Uptake by Plant Roots.- 5.1 Movement of nutrients towards the root plasma membrane surface.- 5.2 Ion uptake and the structure of the roots.- 5.3 Phenomenology of ion uptake by roots.- 5.4 Movement across the root.- 5.5 Addendum.- 6 Transport from Root to Shoot.- 6.1 Structure and function of the xylem.- 6.2 Salinity as a model system.- 7 Transport in the Phloem.- 7.1 Phloem sap.- 7.2 Structure of the phloem.- 7.3 Mechanism of solute movement in the phloem.- 7.4 Loading of solutes into the phloem.- 7.5 Solute unloading.- 7.6 Exchange of solutes between xylem and phloem.- References.
