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glomalin

glomalin

9.9
A protein made by fungi in soil that helps stick soil together and hold water and nutrients
  • noun
  • Specialized
: glomalina
  • The presence of glomalin is important because it improves soil structure by binding particles together.
  • glomalin in certain soils
  • glomalin-producing fungi
  • glomalin levels

Examples

  • The increase in glomalin production helps soil build defenses against degradation and erosion and boosts its productivity.

    Academic text (2002)
  • Arbuscular mycorrhizal fungi, found living on plant roots around the world, appear to be the only producers of glomalin.

    Academic text (2002)
  • Another team recently used carbon dating to estimate that glomalin lasts 7 to 42 years, depending on conditions.

    Academic text (2002)
  • The fungi use carbon from the plant to grow and make glomalin.

    Academic text (2002)
  • Her recent work with Nichols has shown that glomalin levels are even higher in some soils than previously estimated.

    Academic text (2002)
  • Not only does glomalin contain 30 to 40 percent carbon, but it also forms clumps of soil granules called aggregates.

    Academic text (2002)
  • Microaggregates form as decomposing roots, fungal hyphae, glomalin, fecal material, and other forms of detritus become encrusted with mineral particles.

    Academic text (2006)
  • The role of glomalin in soil health is critical for maintaining fertility and preventing erosion.

  • Researchers have found that glomalin produced by fungi can enhance soil stability.

Surface Forms

glomalin singular
glomalins plural

Morphology

glomalin = Glomus (opaque) = glomus + in

Formed from the taxonomic name Glomus + the protein-forming suffix '-in'; because the base is a specialized genus name and the result is a technical soil protein, the relation is not transparent to average learners.

Etymology

Glomalin comes from a soil fungus name, Glomus, plus the protein ending -in, and Glomus comes from a Latin word meaning 'ball', as in globe. So glomalin is a 'protein' made by that 'ball' fungus that helps soil particles stick together into clumps, which is why it improves soil structure.