Abstract

ACOSTA, Danurys Lara; MENENDEZ, Daimy Costales  and  RODRIGUEZ, Alejandro Falcón. Oligogalacturonides in the growth and development of plants. cultrop [online]. 2018, vol.39, n.2, pp. 127-134. ISSN 1819-4087.

Oligogalacturonides consist of a linear chain of galacturonic acid molecules linked by α-1-4. bonds. These macromolecules are located in the pectic portion that constitutes the cell wall of plants and under natural conditions are released from pectin through the action of pectic enzymes from the plant itself or from microorganisms that invade plant tissues.They can regulate the synthesis and action of some hormones, and different processes of organogenesis and growth in plants. From a mixture of these molecules a product commercially called Pectimorf^® has been obtained that favors the growth and formation of roots, the differentiation of the cells of the pericycle and it has exerts an inducing effect on the processes of differentiation of somatic embryos, also that it increases the yield of several crops. Oligogalacturonides are proved to reduce heavy metal toxicity and counteract some of the negative effects of water stress. Due to their biological functions, these macromolecules can be considered suitable to create new biostimulants for the benefit of agriculture

Keywords : galacturonic acid; biostimulants; stress; organogenesis; hormones.

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