polyamines


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polyamines (pol´ēəmēnz´),

n.pl many amines; polymers of amine, many of which normally occur in body constituents of wide distribution and are essential growth factors for microorganisms.

polyamines

widely distributed cationic cell components especially abundant in rapidly proliferating cells. Major polyamines are spermidine and spermine but the diamine, putrescine is often grouped in this category. Multiple role in stabilizing intracellular negatively charged nucleic acids and membranes.
References in periodicals archive ?
Putrescine aminopropyltransferase is responsible for biosynthesis of spermidine, spermine, and multiple uncommon polyamines in osmotic stress-tolerant alfalfa.
Our new product HYDROSOFT C-60-W is a ternary block functional silicone copolymer, which combines several chemical entities in one linear molecule (siloxane, Polyamine and polyether copolymer).
17, 2017), "Explosive-Detection Polymer Comprising Functionalized Polyamine Polymers and Methods of Using the Same," Yu Lei and Ying Wang (University of Connecticut, Farmington, Conn.
Likewise polyamines are also found to improve fruit quality in mango (Malik and Singh, 2006), litchi (Mitra and Sanyal, 1990) and sweet orange (Saleem et al.
Zhao and colleagues found that when the cells were in an electric field, the positively-charged polyamines tend to accumulate at the side of the cell near the negative electrode.
32 Polyamines (putrescine, spermine and spermidine) have also been indicated to play an important part in cell proliferation and growth.
aureus and Enterobacteria, and increased fecal levels of polyamines.
These secondary metabolite including phenolics brassinosteroids jasmonates salicylates polyamines etc.
Polyamines (PAs) are known as a group of natural compounds with aliphatic nitrogen structure that are ubiquitous in plants, animals and microorganisms.
3), (8) Polyamines are critical for the effective regulation of normal cell growth, (3), (9) and evidence suggests they play a role in programmed cell death (apoptosis).
Hydroxylated polyamines can be considered suitable starting materials for the preparation of liquid crystalline polyamines by means of chemical modification, which can combine the existence of an ordered structure with the presence of basic and coordinative positions.