Role of polyamines in growth and development

Authors

  • M. GALLARDO
  • M. MATILLA
  • P. MUÑoz DE RUEDA
  • l. M. SÁNCHEZ-CALLE

Abstract

Polyarnines (putrescine, spermidine and spermine) are aliphatic nitrogenous compounds

that at present are considered growth regulators because they have sorne demonstrated

effect on cellular growth, division and differentiation at low concentrations. Polyamines,

due to polycationic nature, can be bound to negatively charged molecules such as nucIeic

acids, proteins or phospholipids aItering genic expression, the activity of sorne enzymes

and also modifying the fluidity and permeability of the biological membranes. In sorne

plant systems, polyamines may act to store organic nitro gen being the sole source of

nitrogen. Polyamine and ethylene biosynthesis are related by the common precursor Sadenosylmethionine,

and the distribution ofthis compound can have important physiological

implications. Polyamines are al so bound to hydroxycinnamic acids and thus possibly

affect the processes of differentiation, flowering and maturation. Polyamines have an

effect on the resistance to virus and fungus in sorne plants. The plant cell wall is one of

the most important compartrnents in relation to the polyamine catabolism, emphasizing

the increase in the conjugation of polyamines in the cell wall during the cell senescence.

The importance of the polyamines as precursors of numerous alkaloids are also reviewed.

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References

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TIBDRCIO, A.F., R. KAUR-SAWHNEY, R.E. INGERSOLL y A.W. GALSTON:
"Correlation between polyamines and pyrrolidine alkaloids in developing tobacco callus".
Plant Physiol., (1985), 78:323-326.

FLORES, H. E. Y P. FILNER: "Metabolic relationship ofputrescine, GABA, and alkaloids
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TffiURCIO, A. F., R. KAUR-SA WHNEY y A. W. GALSTON: "Polyamine metabolism.
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Published

1996-06-20

How to Cite

1.
GALLARDO M, MATILLA M, MUÑoz DE RUEDA P, SÁNCHEZ-CALLE l. M. Role of polyamines in growth and development. Ars Pharm [Internet]. 1996 Jun. 20 [cited 2024 May 20];37(1):17-2. Available from: https://revistaseug.ugr.es/index.php/ars/article/view/21843

Issue

Vol. 37 No. 1 (1996)

Section

Original Articles

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