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zygospore

[ zahy-guh-spawr, -spohr, zig-uh- ]

noun

, Botany, Mycology.
  1. a cell formed by fusion of two similar gametes, as in certain algae and fungi.


zygospore

/ ˈzɪɡ-; ˈzaɪɡəʊˌspɔː /

noun

  1. a thick-walled sexual spore formed from the zygote of some fungi and algae
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

zygospore

/ gə-spôr′,zĭgə- /

  1. A large, multinucleate spore formed by union of isogametes (gametes that are not distinguished by size and structure), as in certain algae or fungi. A zygospore develops thick, resistant walls and enters a period of dormancy before germinating.
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Derived Forms

  • ˌzygoˈsporic, adjective
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Other Words From

  • zy·go·spor·ic [zahy-g, uh, -, spawr, -ik, -, spor, -, zig-, uh, -], adjective
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Word History and Origins

Origin of zygospore1

First recorded in 1860–65; zygo- + -spore
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Example Sentences

Different stages in the formation and germination of the zygospore.

During this formation of the zygospore, the two arched cells whence the zygospore originated develop a series of dichotomous processes in close proximity to the walls which separate them from the zygospore.

These free-swimming cells, which apparently are formed only to reunite with each other, are called zoöspores, while the organism which results from their fusion is known as a zygospore.

After a long period of rest, this zygospore allows the whole of its contents to escape as a swarm-spore, which after a time secretes a gelatinous wall, and by division reproduces the sixteen-celled family.

After its formation the zygospore still increases considerably in size, and acquires a diameter of more than one-fifth of a millimetre.

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zygosporangiumzygote