rhizobium
noun
any of several rod-shaped bacteria of the genus Rhizobium, found as symbiotic nitrogen fixers in nodules on the roots of the bean, clover, etc.
rhizobia
-
pluralof rhizobium.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
It also has a uniquely beneficial relationship with soil, infusing it with rhizobia, bacteria that helps keep soil healthy.
From National Geographic ● Jul. 20, 2023
The rhizobia are housed inside structures called nodules on the plant's roots.
From Salon ● Feb. 23, 2023
Soil bacteria, collectively called rhizobia, symbiotically interact with legume roots to form specialized structures called nodules, in which nitrogen fixation takes place.
From Textbooks ● Jan. 1, 2015
Students have independently sought out information on the resources for which plants compete, rhizobia symbioses, allelopathy, or the need for mineral nutrients.
From Science Magazine ● Sep. 27, 2012
The nitrogen-fixing rhizobia in root nodules, the mycetomes of insects, and the enzyme-producing colonies in the digestive tracts of many animals are variations of this meticulously symmetrical symbiosis.
From "The Lives of a Cell" by Lewis Thomas
