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Plastic plants and patchy soils.

A Hodge1

  • 1Department of Biology, Area 14, PO Box 373, University of York, York YO10 5YW, UK. ah29@york.ac.uk

Journal of Experimental Botany
|September 21, 2005
PubMed
Summary

Plants adapt root growth to find soil nutrients. Mycorrhizal fungi, a plant symbiont, may enhance nutrient uptake in these patches, impacting plant competition.

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Area of Science:

  • Plant Biology
  • Soil Science
  • Ecology

Background:

  • Soil nutrients exhibit heterogeneous distribution, creating nutrient-rich patches.
  • Plant root systems display morphological and physiological plasticity to exploit these patches.
  • This plasticity is considered a foraging strategy for enhanced nutrient capture.

Purpose of the Study:

  • To investigate the impact of mycorrhizal symbiosis on plant responses to nutrient patches.
  • To explore how mycorrhizal fungi influence nutrient acquisition and competition dynamics.

Main Methods:

  • This study focuses on theoretical considerations and existing evidence rather than novel experimental methods.
  • It synthesizes current knowledge on root plasticity and mycorrhizal associations.

Main Results:

  • Mycorrhizal fungi can potentially outcompete other microbes for patch nutrients.
  • This fungal advantage may be significant for host plants, influencing competition dynamics.

Conclusions:

  • Mycorrhizal symbiosis plays a crucial, yet understudied, role in plant nutrient foraging.
  • Understanding this symbiosis is key to comprehending plant adaptation to patchy nutrient environments.

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