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Plant Polyamines [PDF]

open access: yesPlants, 2020
Polyamines are small organic compounds found in all living organisms. According to the high degree of positive charge at physiological pH, they interact with negatively charged macromolecules, such as DNA, RNA, and proteins, and modulate their activities.
Taku Takahashi
doaj   +3 more sources

Health-Promoting Effects of Dietary Polyamines

open access: yesMedical Sciences, 2021
The purpose of this paper is to summarize the latest information on the various aspects of polyamines and their health benefits. In recent years, attempts to treat cancer by reducing elevated polyamines levels in cancer cells have been made, with some ...
Rika Hirano   +2 more
doaj   +1 more source

Cation Homeostasis: Coordinate Regulation of Polyamine and Magnesium Levels in Salmonella

open access: yesmBio, 2023
Polyamines are organic cations that are important in all domains of life. Here, we show that in Salmonella, polyamine levels and Mg2+ levels are coordinately regulated and that this regulation is critical for viability under both low and high ...
Yumi Iwadate   +2 more
doaj   +1 more source

Diverse Functions of Polyamines in Virus Infection

open access: yesBiomolecules, 2020
As obligate intracellular parasites, viruses rely on host cells for the building blocks of progeny viruses. Metabolites such as amino acids, nucleotides, and lipids are central to viral proteins, genomes, and envelopes, and the availability of these ...
Mason R. Firpo, Bryan C. Mounce
doaj   +1 more source

Polyamines and adventitious root formation in Vitis vinifera L.

open access: yesOENO One, 2002
The effects of polyamines were examined for growth and polyamine contents in cultings, callus and primary adventitious roots of Vitis vinifera L. Variations in free, conjugated and wall-bound polyamines in cuttings were observed during rhizogenesis.
Laurence Geny   +2 more
doaj   +1 more source

Free and Cell Wall-Bound Polyamines under Long-Term Water Stress Applied at Different Growth Stages of ×Triticosecale Wittm. [PDF]

open access: yesPLoS ONE, 2015
Long-stemmed and semi-dwarf cultivars of triticale were exposed to water stress at tillering, heading and anthesis stage. Quantitative determination of free and cell wall-bound polyamines, i.e.
Tomasz Hura   +4 more
doaj   +1 more source

Polyamine Homeostasis in Development and Disease

open access: yesMedical Sciences, 2021
Polycationic polyamines are present in nearly all living organisms and are essential for mammalian cell growth and survival, and for development. These positively charged molecules are involved in a variety of essential biological processes, yet their ...
Shima Nakanishi, John L. Cleveland
doaj   +1 more source

Effect of excessive nitrogen nutrition on free and conjugated polyamines content of leaves and berries of Vitis vinifera L. during their development

open access: yesOENO One, 1996
Nitrogen is the most important element for higher plants, and plant productivity is to a large extend determined by nitrogen nutrition. Effects of nitrogen nutrition on levels of polyamines in leaves and grappes of two vines (Semillon and Sauvignon) are ...
Laurence Geny   +3 more
doaj   +1 more source

Translational recoding as a feedback controller : systems approaches reveal polyamine-specific effects on the antizyme ribosomal frameshift [PDF]

open access: yes, 2011
Peer reviewedPublisher ...
Amarantos   +46 more
core   +2 more sources

Decreased sensitivity to aspirin is associated with altered polyamine metabolism in human prostate cancer cells [PDF]

open access: yes, 2015
Acknowledgments We thank NHS Grampian for financial support of this work.Peer reviewedPublisher ...
Cameron, Gary A.   +2 more
core   +1 more source

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