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Artículo

Response to water deficit of semi-desert wild potato Solanum kurtzianum genotypes collected from different altitudes

Ibañez, Verónica NoéIcon ; Kozub, Perla CarolinaIcon ; Gonzalez, Carina VeronicaIcon ; Jerez, Damián NicolásIcon ; Masuelli, Ricardo WilliamsIcon ; Berli, Federico JavierIcon ; Marfil, Carlos FedericoIcon
Fecha de publicación: 07/2021
Editorial: Elsevier Ireland
Revista: Plant Science
ISSN: 0168-9452
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Horticultura, Viticultura

Resumen

Drought-sensitive crops are threatened as a consequence of limited available water due to climate change. The cultivated potato (Solanum tuberosum) is susceptible to drought and within its wild relative species, Solanum kurtzianum is the Argentinian wild potato species best adapted to arid conditions. However, its physiological responses to water deficit (WD) are still missing. Within the distribution of S. kurtzianum, genotypes could be adapted to differential precipitation regimes. The aim of this work was to evaluate responses of three S. kurtzianum genotypes collected at 1100 (G1), 1900 (G2) and 2100 m a.s.l. (G3) to moderate and severe WD. Treatments were imposed since flowering and lasted 36 days. Yield components, morpho-physiological and biochemical responses; and phenotypic plasticity were evaluated. The three genotypes presented mechanisms to tolerate both WD treatments. G1 presented the lowest yield reduction under moderate WD, mainly through a rapid stomatal closure and a modest vegetative growth. The differences among genotypes suggest that local adaptation is taking place within its natural habitat. Also, G2 presented environmentally induced shifts in plasticity for stomatal length and carotenoids, suggesting that phenotypic plasticity has a role in acclimation of plants to WD until selection works.
Palabras clave: CROP WILD RELATIVES , DROUGHT TOLERANCE INDEX , PHENOTYPIC PLASTICITY , POTATO WILD RELATIVES , TUBER DORMANCY
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/148735
URL: https://linkinghub.elsevier.com/retrieve/pii/S0168945221001047
DOI: https://doi.org/10.1016/j.plantsci.2021.110911
Colecciones
Articulos(IBAM)
Articulos de INST.DE BIOLOGIA AGRICOLA DE MENDOZA
Citación
Ibañez, Verónica Noé; Kozub, Perla Carolina; Gonzalez, Carina Veronica; Jerez, Damián Nicolás; Masuelli, Ricardo Williams; et al.; Response to water deficit of semi-desert wild potato Solanum kurtzianum genotypes collected from different altitudes; Elsevier Ireland; Plant Science; 308; 7-2021; 1-11
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