Effects of Water-Deficit Irrigation on Hormonal Content and Nitrogen Compounds in Developing Berries of Vitis vinifera L. cv. Tempranillo

Niculcea, M.; Martínez‐Lapuente, Leticia; Guadalupe, Zenaida; Sánchez‐Díaz, Manuel; Morales, Fermı́n; Ayestarán, Belén; Antolín, M. Carmen

doi:10.1007/s00344-013-9322-z

Cited by 33 publications

(24 citation statements)

References 63 publications

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“…The decreased IAA levels observed under severe drought may result from the effect of water deficit on IAA polar transportation41. Studies with different crops have shown increased ABA and decreased IAA levels under osmotic stress due to drought or salinity stress4344. Here, increased ABA and decreased IAA concentrations were observed under severe drought for all plant combinations.…”

Section: Discussionmentioning

confidence: 73%

Survival strategies of citrus rootstocks subjected to drought

Santana-Vieira

Freschi

Almeida

et al. 2016

Sci Rep

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Two citrus rootstocks, Rangpur lime (RL) and Sunki Maravilha mandarin (SM), were analyzed either ungrafted or grafted with their reciprocal graft combinations or with shoot scions of two commercial citrus varieties: Valencia orange (VO) and Tahiti acid lime (TAL). All graft combinations were subjected to distinct watering regimes: well-watered, severe drought and rehydration. Growth and water relation parameters, gas exchange as well as sugar and hormone profiles were determined. Data indicated that RL adopted a dehydration avoidance strategy and maintained growth, whereas SM adopted a dehydration tolerance strategy focused on plant survival. Compared with RL, the leaves and roots of SM exhibited higher concentrations of abscisic acid and salicylic acid, which induced drought tolerance, and accumulation of carbohydrates such as trehalose and raffinose, which are important reactive oxygen species scavengers. SM rootstocks were able to transfer their survival strategy to the grafted shoot scions (RL, VO, TAL). Because of their contrasting survival strategies, RL reached the permanent wilting point more quickly than SM whereas SM recovered from prolonged droughts more efficiently than RL. This is one of the most complete studies of drought tolerance mechanisms in citrus crops and is the first to use reciprocal grafting to clarify scion/rootstock interactions.

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Section: Discussionmentioning

confidence: 73%

Survival strategies of citrus rootstocks subjected to drought

Santana-Vieira

Freschi

Almeida

et al. 2016

Sci Rep

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“…ABA is a key signal in the trigger of berry ripening, as suggested by the increase of berry ABA content around véraison (Wheeler et al, 2009; Giribaldi et al, 2010; Sun et al, 2010; Zifkin et al, 2012; Karppinen et al, 2013; Niculcea et al, 2013). However, the effect of water stress on ABA concentration in grape berries is far from being conclusively addressed (Deluc et al, 2009; Balint and Reynolds, 2013; Niculcea et al, 2013, 2014).…”

Section: Discussionmentioning

confidence: 99%

“…However, the effect of water stress on ABA concentration in grape berries is far from being conclusively addressed (Deluc et al, 2009; Balint and Reynolds, 2013; Niculcea et al, 2013, 2014). In addition, contrasting findings have been reported in studies exploring the effect of heat stress on ABA metabolism (Azuma et al, 2012; Carbonell-Bejerano et al, 2013; Rienth et al, 2014) which appear to be particularly dependent on grape berry phenology.…”

Section: Discussionmentioning

confidence: 99%

“…Several reports showed the impact of water shortage on the hormonal balance of grape berry during ripening (Deluc et al, 2009; Niculcea et al, 2013) and on the ABA catabolites concentrations (Balint and Reynolds, 2013). Zarrouk et al (2012) showed that both free ABA and ABA-GE are involved in the enhancement of ripening process in stressed berries.…”

Section: Introductionmentioning

confidence: 99%

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Grape Ripening Is Regulated by Deficit Irrigation/Elevated Temperatures According to Cluster Position in the Canopy

et al. 2016

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The impact of water deficit on berry quality has been extensively investigated during the last decades. Nonetheless, there is a scarcity of knowledge on the performance of varieties exposed to a combination of high temperatures/water stress during the growing season and under vineyard conditions. The objective of this research was to investigate the effects of two irrigation regimes, sustained deficit irrigation (SDI, 30% ETc) and regulated deficit irrigation (RDI, 15% ETc) and of two cluster positions within the canopy (east- and west-exposed sides) on berry ripening in red Aragonez (Tempranillo) grapevines. The study was undertaken for two successive years in a commercial vineyard in South Portugal, monitoring the following parameters: pre-dawn leaf water potential, berry temperature, sugars, polyphenols, abscisic acid (ABA) and related metabolites. Additionally, expression patterns for different transcripts encoding for enzymes responsible for anthocyanin and ABA biosynthesis (VviUFGT, VvNCED1, VvβG1, VviHyd1, VviHyd2) were analyzed. In both years anthocyanin concentration was lower in RDI at the west side (RDIW- the hottest one) from véraison onwards, suggesting that the most severe water stress conditions exacerbated the negative impact of high temperature on anthocyanin. The down-regulation of VviUFGT expression revealed a repression of the anthocyanin synthesis in berries of RDIW, at early stages of berry ripening. At full-maturation, anthocyanin degradation products were detected, being highest at RDIW. This suggests that the negative impact of water stress and high temperature on anthocyanins results from the repression of biosynthesis at the onset of ripening and from degradation at later stages. On the other hand, berries grown under SDI displayed a higher content in phenolics than those under RDI, pointing out for the attenuation of the negative temperature effects under SDI. Irrigation regime and berry position had small effect on free-ABA concentration. However, ABA catabolism/conjugation process and ABA biosynthetic pathway were affected by water and heat stresses. This indicates the role of ABA-GE and catabolites in berry ABA homeostasis under abiotic stresses. Principal component analysis (PCA) showed that the strongest influence in berry ripening is the deficit irrigation regime, while temperature is an important variable determining the improvement or impairment of berry quality by the deficit irrigation regime. In summary, this work shows the interaction between irrigation regime and high temperature on the control of berry ripening.

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“…To our knowledge, detailed information about the variation in ABA metabolites and other phytohormones in climbing plants is scarce (Balint and Reynolds 2013;Niculcea et al 2013). In this context, the stems of hop (Humulus lupulus L.) plants are not only long (up to 12 m), but also annual and exhibit rapid growth similarly to small herbaceous plants.…”

Section: Introductionmentioning

confidence: 98%

Signalling mechanisms involved in the response of two varieties of Humulus lupulus L. to soil drying: II. changes in the concentration of abscisic acid catabolites and stress-induced phytohormones

et al. 2015

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Abscisic acid (ABA) is one of the most common stress signals that appear in plant organs in response to soil drying. Equilibrium between ABA biosynthesis and catabolism regulates ABA accumulation in plants under water stress. The aim of our work was to explore the dynamics of changes in ABA metabolites as well as other stress-induced phytohormones such as jasmonic acid, indole-3-acetic acid, and their respective metabolites in hop [Humulus lupulus (L.)] plants during drying and to identify among them potential signals involved in drought signalling. We showed that the concentrations of all ABA metabolites (except the concentration of ABA glucosyl ester in leaves) increased in the same manner in leaves and xylem sap approximately at the same level of soil water content when the relative water content of leaves decreased. The predominant metabolites in leaves and xylem sap were phaseic acid and dihydroxyphaseic acid. ABA glucosyl ester was not a source of the increased concentration of ABA in leaves and xylem sap because of its considerably lower concentration compared to ABA. The concentration of jasmonates decreased in leaves of hop plants. Changes in auxin concentration suggest that this hormone is involved in the response of hop plants to soil drying.

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Effects of Water-Deficit Irrigation on Hormonal Content and Nitrogen Compounds in Developing Berries of Vitis vinifera L. cv. Tempranillo

Abstract: El artículo seleccionado no se encuentra disponible por ahora a texto completo por no haber sido facilitado todavía por el investigador a cargo del archivo del mismo.

Cited by 33 publications

References 63 publications

Survival strategies of citrus rootstocks subjected to drought

Survival strategies of citrus rootstocks subjected to drought

Grape Ripening Is Regulated by Deficit Irrigation/Elevated Temperatures According to Cluster Position in the Canopy

Signalling mechanisms involved in the response of two varieties of Humulus lupulus L. to soil drying: II. changes in the concentration of abscisic acid catabolites and stress-induced phytohormones

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