Transport of Nutrients in Plants

Transport of Nutrients in Plants

1st Edition - January 1, 1974

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  • Author: A. J. Peel
  • eBook ISBN: 9781483162836

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Description

Transport of Nutrients in Plants provides the study of nutrient movement in plants. The greater part of this book deals with the physiology and cytology of phloem. The first chapter of the text deals with studies on the definition of the cellular pathways of transport. Chapter 2 considers how the mobility of solutes can be measured and the range of chemical species which are moved in xylem and phloem. The next chapter discusses the concepts of velocity and rate. The rest of the book is devoted to the characteristics of phloem transport and the ultrastructure of sieve elements, including such topics as the control of movement, solute-loading and -unloading mechanisms, the dependence of transport upon metabolic energy, bidirectional movement and water movement in phloem. Finally an account is given of the movement of endogenous growth regulators and a brief assessment of 'hormone-directed' transport. Botanists will find the book very interesting and informative.

Table of Contents


  • Introduction

    1 The Pathways of Long Distance Transport

    The Movement of Solutes from the Roots to the Leaves

    The Movement of Solutes from the Mature Leaves to the Roots and Immature Aerial Parts of the Plant

    The Movement of Solutes in Radial and Tangential Transport Systems

    2 The Range of Solutes Transported in Plants

    the Determination of Mobility

    Solutes Transported in the Xylem

    Solutes Transported in the Phloem

    Solutes Transported in Radial and Tangential Transport Systems

    3 The Control of Solute Loading and Unloading at Sources and Sinks

    General Considerations and the Concept of Solute 'Potential'

    Selectivity of the Sieve Tube

    The Mechanism of Sugar Transport into Sieve Tubes

    The Movement of Synthetic Compounds into Sieve Tubes

    4 The Measurement and Concepts of Velocity and Mass Transfer

    The Measurement of Velocity

    The Measurement of Rates of Mass Transfer

    5 The Control of the Rate and Direction of Phloem Transport

    Control by Sources and Sinks

    Control by the Transport Conduits

    The Effect of Environmental Factors on Translocation

    6 The Structure of Phloem Cells

    The Ontogeny of Phloem Cells

    The Developmental Stage at Which Sieve Elements Translocate

    The Ultrastructure of Phloem

    Phloem Plugging

    7 The Hypotheses of the Mechanism of Sieve Tube Transport

    'Passive' Mechanisms

    'Active' Mechanisms

    8 Metabolic Energy and Transport

    The 'Metabolic Potential' of Phloem

    The Effect of Localised Application of Low Temperatures, Metabolic Inhibitors and Anoxia on Transport

    9 Simultaneous Bidirectional Movement and the Kinetics of Multiple Tracer Experiments

    Simultaneous Bidirectional Movement

    Multiple Solute Transport in One Direction

    10 The Osmotic Properties of Sieve Elements and Water Movement in Phloem

    The Osmotic Properties of Sieve Elements

    Evidence for Water Movement in Sieve Tubes

    11 Naturally Occurring Growth Regulators, their Movement and Effects Upon Nutrient Transport

    The Transport of Growth Regulators

    'Hormone-Directed' Transport

    Concluding Remarks

    References

    Glossary of Terms

    List of Abbreviations

    Author Index

    Subject Index

Product details

  • No. of pages: 266
  • Language: English
  • Copyright: © Butterworth-Heinemann 1974
  • Published: January 1, 1974
  • Imprint: Butterworth-Heinemann
  • eBook ISBN: 9781483162836

About the Author

A. J. Peel

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