Mild salt stress improves strawberry fruit quality

Galli, Vanessa; Messias, Rafael da Silva; Perin, Ellen Cristina; Borowski, Joyce Moura; Bamberg, Adilson Luís; Rombaldi, César Valmor

doi:10.1016/j.lwt.2016.07.001

Cited by 76 publications

(56 citation statements)

References 32 publications

(43 reference statements)

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“…Similarly, CO 2 assimilation rates were significantly lower in plants treated with DS and SS ( P < 0.05) compared to the control, suggesting lower photosynthetic rates. Further, other studies have also reported similar effects (Keutgen and Pawelzik , Galli et al ). Successful application of the treatments was evident by the statistically higher electrical conductivity of the soil in pots from DS and SS treatments (Table ).…”

Section: Resultssupporting

confidence: 63%

Transcriptome analysis of strawberry (Fragaria × ananassa) fruits under osmotic stresses and identification of genes related to ascorbic acid pathway

Galli

Messias

Guzmán

et al. 2018

Physiologia Plantarum

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Strawberry (Fragaria ananassa Duch.) is an economically important fruit with a high demand owing to its good taste and medicinal properties. However, its cultivation is affected by various biotic and abiotic stresses. Plants exhibit several intrinsic mechanisms to deal with stresses. In the case of strawberry, the mechanisms highlighting the response against these stresses remain to be elucidated, which has hampered the efforts to develop and cultivate strawberry plants with high yield and quality. Although a virtual reference genome of F. ananassa has recently been published, there is still a lack of information on the expression of genes in response to various stresses. Therefore, to provide molecular information for further studies with strawberry plants, we present the reference transcriptome dataset of F. ananassa, assembled and annotated from deep RNA‐Seq data of fruits cultivated under salinity and drought stresses. We also systematically arranged a series of transcripts differentially expressed during these stresses, with an emphasis on genes related to the accumulation of ascorbic acid (AsA). Ascorbic acid is the most potent antioxidant present in these fruits and highly considered during biofortification. A comparison of the expression profile of these genes by RT‐qPCR with the content of AsA in the fruits verified a tight regulation and balance between the expression of genes, from biosynthesis, degradation and recycling pathways, resulting in the reduced content of AsA in fruits under these stresses. These results provide a useful repertoire of genes for metabolic engineering, thereby improving the tolerance to stresses.

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Section: Resultssupporting

confidence: 63%

Transcriptome analysis of strawberry (Fragaria × ananassa) fruits under osmotic stresses and identification of genes related to ascorbic acid pathway

Galli

Messias

Guzmán

et al. 2018

Physiologia Plantarum

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“…For detailed cultivation conditions refer to Perin et al 5 The experiment was set in a completely randomized design with four treatments, six replicates per treatment, and ten plants per replicate, and consisted of a control group (C) with normal irrigation corresponding to 100% of crop evapotranspiration (ETc) and no salt (NaCl) added, two water-deficit treatments corresponding to 95% ETc (DS1) and 85% ETc (DS2), and one excess salt treatment, which consisted of 80 mmol L −1 NaCl (SS). 4,5 Strawberry samples were harvested when fruit were fully ripe (fruit surface 100% red), and stored in a freezer at −80 ∘ C. Samples were freeze-dried and ground in a mortar and pestle under liquid nitrogen before extraction. Three biological replicates were utilized for each analysis.…”

Section: Plant Materials and Sample Collectionmentioning

confidence: 99%

“…Under extreme drought and salt stress, plants respond by changing the expression of some stress‐related genes affecting physiological aspects, leading to reduced yield and biomass . However, recent studies indicate that moderate stress may serve as an effective biofortification strategy to improve the functional quality of fruits without a significant reduction in yield …”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] However, recent studies indicate that moderate stress may serve as an effective biofortification strategy to improve the functional quality of fruits without a significant reduction in yield. 4,5 General metabolites such as carbohydrates, fatty acids, proteins, and nucleic acids are synthesized by all plant species and play fundamental roles in the plant's life cycle and growth. Due to particular environmental situations and selection pressure, plants have evolved the capacity to synthesize specialized metabolites including terpenoids, glycosides, glucosinolates, alkaloids, and phenolic compounds that provide a competitive advantage in ecological interactions.…”

Section: Introductionmentioning

confidence: 99%

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Untargeted metabolomics of strawberry (Fragaria x ananassa ‘Camarosa’) fruit from plants grown under osmotic stress conditions

et al. 2019

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BACKGROUND Plants activate defense mechanisms to cope with adverse environmental conditions, leading to the accumulation and / or depletion of general and specialized metabolites. In this study, a multiplatform untargeted metabolomics strategy was employed to evaluate metabolic changes in strawberry fruit of cv. Camarosa grown under osmotic stress conditions. Liquid chromatography‐mass spectrometry (LC‐MS/MS) and gas chromatography‐mass spectrometry (GC‐MS) data from strawberries grown under two water‐deficit conditions, irrigated at 95% crop evapotranspiration (ETc) and 85% ETc, and one excess salt condition with a 80 mmol L−1 NaCl solution, were analyzed to determine treatment effects on fruit metabolism. RESULTS Multivariate principal component analysis, orthogonal projections to latent structures – discriminant analysis (OPLS‐DA), and univariate statistical analyses were applied to the data set. While multivariate analyses showed group separation by treatment, T‐tests and fold change revealed 12 metabolites differentially accumulated in strawberries from different treatments – among them phenolic compounds, glycerophospholipids, phytosterols, carbohydrates, and an aromatic amino acid. CONCLUSION Untargeted metabolomic analysis allowed for the annotation of compounds differentially accumulated in strawberry fruit from plants grown under osmotic stress and non‐stressed plants. The metabolic disturbance in plants under stress involved metabolites associated with the inhibition of reactive oxygen species and cell‐wall and membrane lipid biosynthesis, which might serve as osmotic stress biomarkers. © 2019 Society of Chemical Industry

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“…The plants were grown in a greenhouse in Pelotas/RS/Brazil (31° 41' 08" 5 and 52° 25' 56" 0, 42 m altitude). Strawberry seedlings 'Camarosa' were transplanted and grown under the same conditions of fertilization carried out in a previous study (Galli et al, 2016). Orrigation was performed daily by the drip method, and the volume of water supplied was adjusted weekly.…”

Section: Plant Materials and Cultivationmentioning

confidence: 99%

Mineral content and antioxidant compounds in strawberry fruit submitted to drough stress

et al. 2019

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Due mainly to the taste and appearance, the strawberry stands out in relation to the other fruits. and for the presence of antioxidant compounds. However, little attention has been devoted to the impact of abiotic stresses on the quality of strawberry and its agronomic performance. On the present study, we evaluated the effect of two levels of DS (L1 -70% and L2 -50% of crop evapotranspiration) on the quality of strawberry fruit and on some agronomic and physiological variables. There was a dose-dependent reduction in the evaluated agronomic variables in the DS plants, and the content of some minerals in the fruit and leaves was modified. The activities of the oxidative enzymes were higher in the fruit of L2 treatment, and the content of sucrose, reduced sugars, phenolic compounds and the total antioxidant activity were increased in the fruit from L2 treatment; while those of anthocyanins and L-ascorbic acid were reduced in L1 and L2 treatments, respectively. The phenylalanine ammonia lyase gene was upregulated and other genes related to phenylpropanoid and ascorbate pathways were downregulated in the fruit of stressed plants. Thus, our results indicate that DS seems to be a promising strategy to improve the content of antioxidant compounds and sugars.Practical Application: Drought stress might be applied to induce antioxidant and sugars in strawberry fruit.

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Mild salt stress improves strawberry fruit quality

Cited by 76 publications

References 32 publications

Transcriptome analysis of strawberry (Fragaria × ananassa) fruits under osmotic stresses and identification of genes related to ascorbic acid pathway

Transcriptome analysis of strawberry (Fragaria × ananassa) fruits under osmotic stresses and identification of genes related to ascorbic acid pathway

Untargeted metabolomics of strawberry (Fragaria x ananassa ‘Camarosa’) fruit from plants grown under osmotic stress conditions

Mineral content and antioxidant compounds in strawberry fruit submitted to drough stress

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