bacteroid

noun

Meaning

A modified, often enlarged and irregular form of a bacterium that develops within the tissues of a host organism, particularly in the root nodules of leguminous plants.

Examples

  • The plant provides carbohydrates to the bacteroid in exchange for nitrogen.
  • Microscopic analysis revealed the presence of numerous bacteroids within the nodule cells.

Synonyms: bacterial cell, symbiont, modified bacterium, endosymbiont