Plants, in addition to their role as primary synthesizers of organic compounds, have evolved as selective accumulators of inorganic nutrients from the earth’s crust. This ability to mine the physical environment is restricted to green plants and some microorganisms, other life forms being directly or indirectly dependent on this process for their supply of mineral nutrients. The initial accumulation of ions by plants is often spatially separated from the photosynthetic parts, necessitating the transport to these parts of the inorganic solutes thus acquired. The requirement for energy-rich materials by the accumulation process is provided by a transport in the opposite direction of organic solutes from the photosynthetic areas.
- Gauch, H.G. (1972), Inorganic Plant Nutrition, Dowden, Hutchinson and Ross Inc., Stroudsburg, Pa. A sourcebook on plant nutrition with over 2600 references.Google Scholar
- Kramer, P.J. (1969), Plant and Soil Water Relationships, McGraw-Hill, New York. Useful integration of ion uptake studies with those on water absorption.Google Scholar
- Meidner, H. and Sheriff, D.W. (1976), Water and Plants, Blackie; Glasgow. A useful introductory text on water movement in the plant incorporating the biophysical aspects of the process.Google Scholar
- Nobel, P.S. (1974), Introduction to Biophysical Plant Physiology, Freeman, San Francisco. Biophysical and physicochemical approach to ion uptake and translocation. Suitable for advanced students.Google Scholar
- Richardson, M. (1975), Translocation in Plants, 2nd edition, Edward Arnold, London. A short, very simplified account of transloca tion processes.Google Scholar
- Sutcliffe, J.F. and Baker, D.A. (1974), Plants and Mineral Salts, Edward Arnold, London. A short introductory text on mineral nutrition, ion uptake and distribution.Google Scholar
- Wardlaw, I.F. and Passioura, J.B. (eds) (1976), Transport and Transfer Processes in Plants, Academic Press, New York; San Francisco, London. Symposium proceedings which integrates and reviews a broad spectrum of research on the movement of substances in plants.Google Scholar