Coenocyte

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coenocyte

[′sē·nə‚sīt]
(biology)
A multinucleate mass of protoplasm formed by repeated nucleus divisions without cell fission.

Coenocyte

 

in animals, a type of tissue structure characterized by the absence of cell boundaries and the distribution of nuclei in a dense mass of cytoplasm. Examples of coenocytes include striated muscle fibers, the embryos of certain insects in the early stages of development, and certain protozoans, including many infusorians. Some tissues, for example, the epithelial intestinal lining of many mollusks and insects, have alternating cellular and coenocytic structures at various stages of digestion. A coenocyte may be formed by cell fusion or by the multiplication of nuclei without subsequent plasmotomy or cytotomy.

In plants the polynuclear protoplast of organisms having no cell structure, for example, Caulerpa, is referred to as either a coenocyte or syncytium. In multicellular plants the term “coenocyte” refers to the protoplasmic contents (including nuclei) of fused cells, for example, jointed lactiferous vessels, as well as to the aggregate of protoplasts connected by protoplasmic threads (plasmodesmata).

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cupressoides biochemically change its coenocytic tissue polysaccharide composition (Rodrigues et al., 2017a) according to the ecophysiological growth conditions (Pomin & Mourao, 2008; Wang et al., 2014).
As this investigation indicated a preponderance of SPs with distributions of molecular weight ranging from 8 to > 100 kDa in the coenocytic structure of C.
Interestingly, Halimeda incrassata, another coenocytic green alga, was reported recently from the southern end of the LLM (Kaldy 1996).
Pollen and coenocytic microspore germination in male-fertile and male-sterile ms1 soybean.
gnemon is a single large coenocytic cell containing hundreds of free nuclei [ILLUSTRATION FOR FIGURE 2 OMITTED].
Although presenting a yield of about 5.7-fold lower than those previously published, the DEAE-cellulose column-bound coenocytic tissue structure SPs were separated into three SPs fractions (F I, F II and F III) at 0.5, 0.75 and 1 M NaCl, respectively, as assessed by metachromasy due to the complex-binding capacity of SPs (Farndale et al., 1986).
Coenocytic (Chapter 9)--Fungi that lack internal cell walls in the hyphae.
These somewhat loosely defined haustoria are not strictly comparable with the chalazal and micropylar endosperm haustoria found in many Asteridae, such as Lamiaceae (Rudall & Clark, 1992), where distinct well-defined endosperm chambers are formed, often containing a few large coenocytic nuclei which may wander around the periphery of the haustorium.
Heterokaryon formation, the formation of a coenocytic state where two (or even more) genetically different haploid nuclei are present, is typical for the fungi.
crispata eats a variety of ulvophytic, coenocytic algae; but whether it retains chloroplasts from multiple algal species is unknown and is a matter that we are currently investigating.
Chemical composition of the wound plug and entire plants for species of the coenocytic green alga, Caulerpa.
Green marine algae of the genus Caulerpa Lamouroux (1809) are commonly found on the Brazilian coast (RODRIGUES et al., 2010c; RODRIGUES et al., 2011a) and are characterized by filamentous coenocytic organization, with a creeping stem of macroscopic shape, attached to substrate by a rhizomatous portion.