Drought stress induces biosynthesis of flavonoids in leaves and saikosaponins in roots of Bupleurum chinense DC

Yang, Linlin; Yang, Li; Yang, Xiao Hong; Zhang, Tao; Lan, Yi-ming; Yu, Zujiang; Han, Mei; Yang, Limin

doi:10.1016/j.phytochem.2020.112434

Cited by 64 publications

(45 citation statements)

References 46 publications

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“…Flavonoids, as stress-responsive metabolites, could alleviate the oxidative injury of abiotic stress by reducing various forms of reactive oxygen species ROS (28). Thus, plant flavonoid accumulation is generally influenced by drought stress, as demonstrated in Bupleurum chinense DC (29), Camellia sinensis (30) and rice (31). In our research, total flavonoid content increased continuously during drought stress in FJ, with elevated levels of flavanols, flavonols, flavones, and flavonoid carbonosides (Figure 1B).…”

Section: Flavonoid Components In Zbls and The Effects Of Drought Stre...supporting

confidence: 56%

Integrated Analysis of Metabolome and Transcriptome Data for Uncovering Flavonoid Components of Zanthoxylum bungeanum Maxim. Leaves Under Drought Stress

Hong

Fei

et al. 2022

Front. Nutr.

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Zanthoxylum bungeanum Maxim. leaves (ZBLs) are rich in flavonoids and have become popular in nutrition, foods and medicine. However, the flavonoid components in ZBLs and the mechanism of flavonoid biosynthesis under drought stress have received little attention. Here, we performed an integrative analysis of the metabolome and transcriptome of ZBLs from HJ (Z. bungeanum cv. “Hanjiao”) and FJ (Z. bungeanum cv. “Fengjiao”) at four drought stages. A total of 231 individual flavonoids divided into nine classes were identified and flavones and flavonols were considered the most abundant flavonoid components in ZBLs. The total flavonoid content of ZBLs was higher in FJ; it increased in FJ under drought stress but decreased in HJ. Nine-quadrant analysis identified five and eight differentially abundant flavonoids in FJ and HJ leaves, respectively, under drought stress. Weighted gene correlation network analysis (WGCNA) identified nine structural genes and eight transcription factor genes involved in the regulation of flavonoid biosynthesis. Moreover, qRT-PCR results verified the accuracy of the transcriptome data and the reliability of the candidate genes. Taken together, our results reveal the flavonoid components of ZBLs and document changes in flavonoid metabolism under drought stress, providing valuable information for nutrition value and food utilization of ZBLs.

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Section: Flavonoid Components In Zbls and The Effects Of Drought Stre...supporting

confidence: 56%

Integrated Analysis of Metabolome and Transcriptome Data for Uncovering Flavonoid Components of Zanthoxylum bungeanum Maxim. Leaves Under Drought Stress

Hong

Fei

et al. 2022

Front. Nutr.

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“…Soluble sugars are also involved in playing a dual role in plants under stress conditions, as a signaling molecule and osmoregulatory substance [64]. Various studies showed that proline and soluble sugars are involved in drought tolerance and adaptation in many plant species [67][68][69][70]. Proline and SS contents showed a differential response to the duration of drought-hardening treatments.…”

Section: Drought-hardening Increases the Content Of Proline And Solubmentioning

confidence: 99%

Drought-hardening improves drought tolerance in Nicotiana tabacum at physiological, biochemical, and molecular levels

Khan

Shah

et al. 2020

BMC Plant Biol

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Background Drought stress is the most harmful one among other abiotic stresses with negative impacts on crop growth and development. Drought-hardening is a feasible and widely used method in tobacco seedlings cultivation. It has gained extensive interests due to its role in improving drought tolerance. This research aimed to investigate the role of drought-hardening and to unravel the multiple mechanisms underlying tobacco drought tolerance and adaptation. Results This study was designed in which various drought-hardening treatments (CK (no drought-hardening), T1 (drought-hardening for 24 h), T2 (drought-hardening for 48 h), and T3 (drought-hardening for 72 h)) were applied to two tobacco varieties namely HongHuaDaJinYuan (H) and Yun Yan-100 (Y). The findings presented a complete framework of drought-hardening effect at physiological, biochemical, and gene expression levels of the two tobacco varieties under drought stress. The results showed that T2 and T3 significantly reduced the growth of the two varieties under drought stress. Similarly, among the various drought-hardening treatments, T3 improved both the enzymatic (POD, CAT, APX) and non-enzymatic (AsA) defense systems along with the elevated levels of proline and soluble sugar to mitigate the negative effects of oxidative damage and bringing osmoregulation in tobacco plants. Finally, the various drought-hardening treatments (T1, T2, and T3) showed differential regulation of genes expressed in the two varieties, while, particularly T3 drought-hardening treatment-induced drought tolerance via the expression of various stress-responsive genes by triggering the biosynthesis pathways of proline (P5CS1), polyamines (ADC2), ABA-dependent (SnRK2, AREB1), and independent pathways (DREB2B), and antioxidant defense-related genes (CAT, APX1, GR2) in response to drought stress. Conclusions Drought-hardening made significant contributions to drought tolerance and adaptation in two tobacco variety seedlings by reducing its growth and, on the other hand, by activating various defense mechanisms at biochemical and molecular levels. The findings of the study pointed out that drought-hardening is a fruitful strategy for conferring drought tolerance and adaptations in tobacco. It will be served as a useful method in the future to understand the drought tolerance and adaptation mechanisms of other plant species. Graphical abstract Drought-hardening improved drought tolerance and adaptation of the two tobacco varieties. T1 indicates drought-hardening for 24 h, T2 indicates drought-hardening for 48 h, T3 indicates drought-hardening for 72 h

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“…Several SMs produced in plants are helpful in the induction of drought tolerance [19]. The rise in endogenous levels of plant SMs (phenolics) in response to drought stress was recorded in Brassica napus, Lactuca sativa, Cucumis sativus, Thymus vulgaris and many medicinal plants [19,27,28]. In grapevine and Triticum aestivum, the concentration in phenolic compounds markedly increased in plants subjected to drought stress.…”

Section: Main Environmental Stresses and Specialized Metabolites In Different Cropsmentioning

confidence: 99%

Strategies to Modulate Specialized Metabolism in Mediterranean Crops: From Molecular Aspects to Field

Balestrini

Brunetti

Cammareri

et al. 2021

IJMS

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Plant specialized metabolites (SMs) play an important role in the interaction with the environment and are part of the plant defense response. These natural products are volatile, semi-volatile and non-volatile compounds produced from common building blocks deriving from primary metabolic pathways and rapidly evolved to allow a better adaptation of plants to environmental cues. Specialized metabolites include terpenes, flavonoids, alkaloids, glucosinolates, tannins, resins, etc. that can be used as phytochemicals, food additives, flavoring agents and pharmaceutical compounds. This review will be focused on Mediterranean crop plants as a source of SMs, with a special attention on the strategies that can be used to modulate their production, including abiotic stresses, interaction with beneficial soil microorganisms and novel genetic approaches.

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Drought stress induces biosynthesis of flavonoids in leaves and saikosaponins in roots of Bupleurum chinense DC

Cited by 64 publications

References 46 publications

Integrated Analysis of Metabolome and Transcriptome Data for Uncovering Flavonoid Components of Zanthoxylum bungeanum Maxim. Leaves Under Drought Stress

Integrated Analysis of Metabolome and Transcriptome Data for Uncovering Flavonoid Components of Zanthoxylum bungeanum Maxim. Leaves Under Drought Stress

Drought-hardening improves drought tolerance in Nicotiana tabacum at physiological, biochemical, and molecular levels

Strategies to Modulate Specialized Metabolism in Mediterranean Crops: From Molecular Aspects to Field

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