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 (dī-kăr′ē-ŏn′, -ən)
A hypha occurring in certain fungi after sexual reproduction in which each compartment contains two nuclei, one from each parent.

[di- + Greek karuon, nut, kernel; see karyo-.]

di·kar′y·ot′ic (-ŏt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
Keywords: Mating type monokaryon dikaryon molecular marker oyster mushroom.
Before infection can occur, the smuts need to undergo a successful mating to form dikaryotic hyphae (two haploid cells fuse to form a dikaryon).
The end of reprogramming can be defined by morphological similarity of nuclei in dikaryon. We give one more reason.
Formation of an extracellular lacease by Schizophyllum commune dikaryon. Journal of Genral Microbiology, 132: 2817-2826.
This was done due to the ability of monocaryotic hyphae of some fungi to fuse (anastomose) and exchange genetic material following contact with another monokaryon or dikaryon of the same species (Rayner and Boddy 1988, Ainsworth and Rayner 1989, Beeching et al.
The infective stage of the fungus is a dikaryon that is formed when haploid sporidia of opposite mating-type conjugate.