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.


  1. 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
  2. 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
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Copyright information

© D.A. Baker 1978

Authors and Affiliations

  1. 1.Reader in Plant PhysiologyUniversity of SussexUK

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