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Related Experiment Videos

Mycorrhiza in sedges--an overview.

T Muthukumar1, K Udaiyan, P Shanmughavel

  • 1Microbiology Laboratory, Department of Botany, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India. tmkum@yahoo.com

Mycorrhiza
|March 5, 2004
PubMed
Summary

Sedges (Cyperaceae) were once thought non-mycorrhizal, but now show widespread mycorrhizal fungi associations. Environmental factors significantly influence this relationship, with sedges also possessing adaptations for low mycotrophy.

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Area of Science:

  • Plant biology
  • Mycology
  • Ecology

Background:

  • Most terrestrial plants form symbiotic relationships with mycorrhizal fungi, enhancing mutual fitness.
  • Sedges (Cyperaceae) often inhabit environments with low fungal inoculum and were historically considered non-mycorrhizal.
  • Recent studies reveal widespread mycorrhizal associations in sedges, challenging previous classifications.

Purpose of the Study:

  • To review current data on mycorrhizal incidence in sedges (Cyperaceae).
  • To explore potential reasons for varying degrees of mycotrophy in this family.
  • To highlight knowledge gaps regarding the ecological significance and benefits of mycorrhizal associations in sedges.

Main Methods:

  • Literature review of studies on mycorrhiza in sedges since 1987.
  • Analysis of factors influencing mycorrhizal status in Cyperaceae.
  • Examination of morphological adaptations in sedges for nutrient acquisition.

Main Results:

  • The family Cyperaceae is now recognized as mycorrhizal, with status varying by species and environment.
  • Environmental conditions significantly impact the extent of mycotrophy in sedges.
  • Sedges exhibit adaptations enabling survival and growth with limited or no mycorrhizal association.

Conclusions:

  • Mycorrhizal associations are common in sedges, but their ecological role and benefits require further investigation.
  • Environmental plasticity and specific adaptations influence mycotrophy levels in Cyperaceae.
  • Future research should focus on the functional aspects of mycorrhizal symbiosis in sedges.

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