protoplast

(redirected from Protoplasts)
Also found in: Dictionary, Thesaurus, Legal, Encyclopedia.

protoplast

 [pro´to-plast]
a bacterial, yeast, or fungal cell deprived of its rigid wall but with its plasma membrane intact; the cell is dependent for its integrity on an isotonic or hypertonic medium.

pro·to·plast

(prō'tō-plast),
1. Archaic term meaning the first individual of a type or race.
2. A bacterial cell from which the rigid cell wall has been completely removed; the bacterium loses its characteristic form.
[proto- + G. plastos, formed]

protoplast

(prō′tə-plăst′)
n.
A cell of a plant, fungus, bacterium, or archaeon from which the cell wall has been removed, leaving the protoplasm and plasma membrane.

pro′to·plas′tic adj.

pro·to·plast

(prō'tō-plast)
A bacterial cell from which the rigid cell wall has been completely removed; the bacterium loses its characteristic form.
[proto- + G. plastos, formed]

protoplast

a CELL from which the CELL WALL has been removed completely.
References in periodicals archive ?
Influence of donor material and genotype on protoplast regeneration in banana and plantain cultivars (Musa spp.).
Successful application of the fusion technique demands a protocol for plant regeneration from protoplasts.
The production of protoplasts creates single cells from pieces of algal thallus and these protoplasts subsequently regenerate into whole plants.
The isolation, regeneration and fusion of Phycomyces protoplasts. Molecular and General Genetics 135(3):273-276.
Activity of yeast FLP recombinase in maize and rice protoplasts. Nucleic Acids Res.
Bao PH, Granata S, Castiglione S, Wang G, Giordani C, Cuzzoni E, Damiani G, Bandi C, Datta SK, Datta K, Potrykus I, Callegarin A, Sala F (1996) Evidence for genomic changes in transgenic rice (Oryza sativa L.) recovered from protoplasts. Transgen Res 5: 97-103.
In electroporation, plant protoplasts are exposed to a sudden electrical shock that opens up pores in the plant cell and enables DNA to enter.
The Effect of the Dis-integrin Peptide Arginine-Glycine-Aspartic Acid on Protoplasts of Boergesenia forbesii.
* Cytoplasmic strands connect the protoplasts of adjacent cells, making the living material of the cells continuous within the plant.
With the temptation window, only the serpent may echo the drama; the nudity of the protoplasts is unlikely (various strategies were adopted to overcome this problem, including costumes of white leather).
The extant extrabiblical Adamschriften, as well as other apocryphal or pseudepigraphical compositions that include discussion of the protoplasts and their progeny, are likewise innocent of this narrative event.[15] It would thus appear to be a unique development of the Genesis legend that is distinctively Manichaean in provenance.