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also pro·car·y·ote  (prō-kăr′ē-ōt′)
Any of various microorganisms of the domains Archaea and Bacteria, characterized by the absence of a distinct membrane-bound nucleus and membrane-bound organelles and by the simultaneous occurrence of DNA transcription and protein synthesis at the same site, in contrast to eukaryotes. Also called moneran.

[French procaryote : Greek pro-, before; see pro-2 + Greek karuōtos, having nuts (from karuon, nut; see karyo-).]

pro·kar′y·ot′ic (-ŏt′ĭk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.prokaryotic - having cells that lack membrane-bound nuclei
eucaryotic, eukaryotic - having cells with `good' or membrane-bound nuclei
References in periodicals archive ?
Prokaryotic expression, purification and activity assay of recombinant vascular endothelial growth factor.
this study investigated the prokaryotic and eukaryotic expression of a PtCacyBP recombinant plasmid under a series of salinity stresses.
Another advantage of red excitation for chlorophyll is that it is significantly more sensitive to prokaryotic algae so it can detect much lower concentrations of blue-green algae or cyanobacteria.
Following are 22 contributions addressing commercial applications of synthetic biology, the genome as the unit of engineering, biofilm biosensors, sociomicrobiology, novel approaches to combat biofilm drug tolerance, next-generation synthetic gene networks, engineering scalable biological systems, vaccinology, and prokaryotic gene clusters, among other topics.
Work by Venter's group and others has revealed such genetic diversity among prokaryotes in ocean waters that a taxonomic problem has arisen as to how to define this diversity, how to define a prokaryotic species.
of Patras, Greece) compiles 11 articles on the biochemical pathways of glycerol metabolism in prokaryotic and eukaryotic cells cultivated under different conditions.
Authors should be aware that previous taxonomic spelling of binomial names exist and check their historic evolution in the List of Prokaryotic Names with Standing in Nomenclature (
Moreover, these species are the most poorly known anywhere; even disregarding bacteria and other prokaryotic organisms and using the most conservative estimates, their associated plants, animals, fungi, and microorganisms consist of 4-5 million species, with no more than 1 in 10 even having been given a scientific name.
Diversa Corporation (San Diego, CA; 858-860-0266) announced the issuance of United States Patent 6,280,926, covering the discovery of enzymes from gene libraries derived from mixed populations of eukaryotic organisms, such as fungi, plants, and insects and prokaryotic organisms such as bacteria and archaea.
We suggest that the endotoxin-elicited secretion of Limulus functions as an antibiological agent that discourages colonization of the carapace of this species by sessile prokaryotic and eukaryotic organisms.
In contrast, studies of the ability of the system to acquire and integrate new dna from invaders as a form of prokaryotic adaptive immunity, have lagged behind.
In sections on fundamentals, methods, and applications, they consider such topics as the molecular taxonomy of environmental prokaryotes, the diversity of microbial extremophiles, microscopic techniques to assess prokaryotic molecular diversity in environmental samples, proteomics: principles and application in the microbiology of prokaryotes, potentials and challenges of microbial biofuels, and bioremediation.