Low doses of exogenous methyl jasmonate applied simultaneously with toxic aluminum improve the antioxidant performance of Vaccinium corymbosum

Ulloa-Inostroza, Elizabeth M.; Alberdi, Miren; Meriño‐Gergichevich, Cristian; Reyes‐Díaz, Marjorie

doi:10.1007/s11104-016-2985-z

Cited by 32 publications

(21 citation statements)

References 62 publications

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“…Phenolic compounds are plant secondary metabolites with bioactive properties and are generally involved in the defense against stress conditions in plants [60,61]. They can be generally characterized by astringency, color, flavor, odor, and oxidative stability [62,63]. In recent years, the phenolic compounds of wild or domesticated Arrayán, Chequén, Maqui, Meli, and Murtilla have been studied, with the results highlighting the high antioxidant activity of their leaves and fruits [8,[14][15][16]48].…”

Section: Bioactive Compounds In Native Chilean Fruitsmentioning

confidence: 99%

Native Chilean Fruits and the Effects of their Functional Compounds on Human Health

Ulloa-Inostroza¹,

Ulloa-Inostroza²,

Alberdi³

et al. 2017

Superfood and Functional Food - An Overview of Their Processing and Utilization

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In recent years, there has been great interest in the nutraceutical compounds of fruits from native Chilean plant species. In this context, fruits of Amomyrtus meli (Meli), Aristotelia chilensis (Maqui), Berberis microphylla (Calafate), Luma apiculata (Arrayán), Luma chequén (Chequén), and Ugni molinae (Murtilla) growing predominantly in Chilean forests have been studied. This chapter has compiled the existing information about antioxidant activity and antioxidant compound contents of the above mentioned fruit species and their association with the prevention of pathophysiological disorders in humans, such as inflammation, diabetes, and cardiovascular diseases. Results show that the antioxidant compounds of these species, particularly anthocyanins, decrease inflammation as well as the risk of diabetes and cardiovascular diseases. Therefore, consumption of these fruits is a good alternative for preventing cardiovascular and age-related diseases and pathophysiological disorders.

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Section: Bioactive Compounds In Native Chilean Fruitsmentioning

confidence: 99%

Native Chilean Fruits and the Effects of their Functional Compounds on Human Health

Ulloa-Inostroza¹,

Ulloa-Inostroza²,

Alberdi³

et al. 2017

Superfood and Functional Food - An Overview of Their Processing and Utilization

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“…Several studies have reported that jasmonates (JAS) such as jasmonic acid (JA) or methyl jasmonate (MeJA) have a protective effect on plants against various environmental stresses such as salt stress (Ismail et al 2012), UV stress (Larronde et al 2003), and toxic metals (TM) (Keramat et al 2009;Ulloa-Inostroza et al 2017). However, studies about the protective effects of JAS on plants under Al toxicity are scarce, with the exception of a few reports like Xue et al (2008) in tora (Cassia tora), Roselló et al (2015) in rice (Oryza sativa), and Ulloa-Inostroza et al (2017) in highbush blueberry.…”

Section: Introductionmentioning

confidence: 99%

Protective Effect of Methyl Jasmonate on Photosynthetic Performance and Its Association with Antioxidants in Contrasting Aluminum-Resistant Blueberry Cultivars Exposed to Aluminum

Ulloa-Inostroza

Alberdi

Ivanov

et al. 2019

J Soil Sci Plant Nutr

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Methyl jasmonate (MeJA) protective effect on photosynthetic performance and its association with antioxidants in two highbush blueberry (Vaccinium corymbosum L.) cultivars with contrasting aluminum (Al) resistance under Al toxicity was determined. Legacy (Al-resistant) and Bluegold (Al-sensitive) cultivars were subjected to control, MeJA, Al, and their combination (Al+ MeJA) for 0, 24, and 48 h under greenhouse conditions. Al concentration, oxidative damage (malondialdehyde (MDA) and H 2 O 2 concentrations), antioxidant activity (AA), superoxide dismutase (SOD) and catalase (CAT) activities, total polyphenols (TPP), chlorogenic acid, and in vivo photosynthetic performance were determined. The exposure to Al toxicity increased the Al concentration (up to 15-fold) and oxidative damage (up to 5.5-fold) compared to the control at 48 h, despite the antioxidant responses (SOD and CAT activities) were increased (up to 4-fold), mainly in the Al-sensitive cultivar at 48 h. Concomitantly, the photosynthetic performance was strongly reduced in the Al-sensitive cultivar (1.6-fold), while the Al-resistant cultivar was more stable during the experiment. However, when cultivars were exposed to Al+MeJA, the Al accumulation and oxidative damage strongly decreased (7-fold and 1.6-fold, respectively), increasing AA, SOD and CAT activities, and TPP in both cultivars during the first hours of Al exposure. The MeJA application decreased Al uptake and stimulated antioxidant pathways, which may counteract the toxic Al effects, protecting the photosynthetic apparatus in both cultivars, being more evident in the Al-sensitive cultivar.

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“…To counteract Mn excess induced oxidative stress, plants are capable of improving antioxidant mechanisms such as enzymatic and non-enzymatic compounds. Non-enzymatic compounds such as phenols are able to donate electrons or generate protons which are effective ROS scavenging compounds against metal stresses (Ulloa-Inostroza et al, 2017). Likewise, antioxidant enzymes such as superoxide dismutase (SOD) and guaiacol peroxidase (POD) increase their activity under Mn excess, raising values of antioxidants that are correlated with a higher ROS detoxification in plants (Shi et al, 2005(Shi et al, , 2006; Mora et al, 2009;Gangwar et al, 2010;Ribera et al, 2013;Santos et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Early responses to manganese (Mn) excess and its relation to antioxidant performance and organic acid exudation in barley cultivars

Millaleo

Rao

Ulloa-Inostroza

et al. 2018

J. Soil Sci. Plant Nutr.

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Manganese (Mn) is an essential micronutrient for plants, and is necessary for biochemical and physiological processes. The objective of this research was to determine the early responses to Mn excess and its relation to antioxidant performance mechanisms and organic acid exudation in commercial barley cultivars. We determined early responses to Mn excess in four barley cultivars (Barke, Tatoo, Scarlett, Sebastian), which were subjected to increasing Mn concentrations (2.4-150-350-750-1500 µM Mn), pH 4.8, under nutrient solution during seven days. Results showed that plant growth parameters: biomass, length and relative growth rate (RGR) were negatively altered with the higher Mn treatments. Antioxidant performance such as antioxidant activity (AA) and antioxidant enzymes such as superoxidase dismutase (SOD) were activated in presence of excess Mn. Oxalate was the major organic acid roots exudate, and the cultivar Sebastian had the highest oxalate exudation. In conclusion, Tatoo and Sebastian are proposed as the most Mn tolerant cultivars given that the biomass parameters were not affected by increasing Mn doses, showing major oxalate exudation. It is suggested that the mechanisms associated to Mn alleviation could be attributed to SOD, AA and organic acid production, mainly oxalate, in tolerant cultivars (Sebastian, Tatoo) together to significant decrease of total phenols (TP) in shoot of sensitive cultivars (Barke and Scarlett). Non-enzymatic barriers were not related to early responses, and an enzymatic barrier and oxalate exudation were considered as early indicators of Mn stress, projecting that the tolerance of Mn-tolerant cultivars could increase under field conditions.

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Low doses of exogenous methyl jasmonate applied simultaneously with toxic aluminum improve the antioxidant performance of Vaccinium corymbosum

Cited by 32 publications

References 62 publications

Native Chilean Fruits and the Effects of their Functional Compounds on Human Health

Native Chilean Fruits and the Effects of their Functional Compounds on Human Health

Protective Effect of Methyl Jasmonate on Photosynthetic Performance and Its Association with Antioxidants in Contrasting Aluminum-Resistant Blueberry Cultivars Exposed to Aluminum

Early responses to manganese (Mn) excess and its relation to antioxidant performance and organic acid exudation in barley cultivars

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