INVESTIGADORES
PITTA-ALVAREZ Sandra Irene
artículos
Título:
Impact of polyploidy on plant tolerance to abiotic and biotic stresses
Autor/es:
TOSSI, VANESA E.; MARTÍNEZ TOSAR, LEANDRO J.; LAINO, LEANDRO E.; IANNICELLI, JESICA; REGALADO, JOSÉ JAVIER; ESCANDÓN, ALEJANDRO SALVIO; BAROLI, IRENE; CAUSIN, HUMBERTO FABIO; PITTA-ÁLVAREZ, SANDRA IRENE
Revista:
Frontiers in Plant Science
Editorial:
Frontiers
Referencias:
Lugar: Lausanne; Año: 2022 vol. 13
Resumen:
Polyploidy, defined as the coexistence of three or more complete sets ofchromosomes in an organism’s cells, is considered as a pivotal moving forcein the evolutionary history of vascular plants and has played a major role inthe domestication of several crops. In the last decades, improved cultivars ofeconomically important species have been developed artificially by inducingautopolyploidy with chemical agents. Studies on diverse species have shownthat the anatomical and physiological changes generated by either natural orartificial polyploidization can increase tolerance to abiotic and biotic stressesas well as disease resistance, which may positively impact on plant growthand net production. The aim of this work is to review the current literatureregarding the link between plant ploidy level and tolerance to abiotic andbiotic stressors, with an emphasis on the physiological and molecularmechanisms responsible for these effects, as well as their impact on thegrowth and development of both natural and artificially generated polyploids,during exposure to adverse environmental conditions. We focused on theanalysis of those types of stressors in which more progress has been madein the knowledge of the putative morpho-physiological and/or molecularmechanisms involved, revealing both the factors in common, as well as thosethat need to be addressed in future research