Bioactive components and antibacterial activities of hydrolate extracts by optimization conditions from Paeonia ostii T. Hong ＆ J. X. Zhang

Xin, Ziwei; Yang, Weizong; Duan, Yihao; Wang, Wenjia; Niu, Lixin; Sun, Daoyang; Zhang, Yanlong

doi:10.1016/j.indcrop.2022.115737

Cited by 11 publications

(4 citation statements)

References 43 publications

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“…Meanwhile, methanol was unable to inhibit bacteria growth. Compared with the microbial growth inhibitory effect (10.65–17.5 mm) of newly grown peony leaf hydrosols [ 25 ], it is safe to conclude that the solvent extract from peony leaves exhibits a stronger antibacterial activity than that of peony leaf hydrosols. Compared to the antibacterial ability of solvent extracts of P. suffruticosa flower buds against food-borne pathogens such as S. aureus , L. monocytogenes , and E. coli reported previously (DIZ and MICs: 9–15 mm and 0.195–6.25 mg/mL, respectively), the antibacterial ability of wild tree peony leaves was clearly greater [ 35 ].…”

Section: Resultsmentioning

confidence: 99%

“…Previous studies on peony leaves have reportedly focused on their mature leaves, which are in full bloom period [ 9 ]; however, to our knowledge, there is almost no research on newly grown tree peony leaves. It is well known that the nutrients required for the sprouting of tree peony leaves are obtained from the roots, so there is a certain similarity in the types of secondary metabolites between the roots and leaves of tree peony [ 25 ]. As the leaves develop, the species and content of secondary metabolites in them decrease.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive Metabolite Profile Uncovers the Bioactive Components, Antioxidant and Antibacterial Activities in Wild Tree Peony Leaves

Xin

Yang

Niu

et al. 2023

IJMS

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Tree peonies (Paeonia Section Moutan)—including nine wild species, which belong to subsections Vaginatae and Delavayanae—are economically important plants with ornamental, nutritional, and medicinal applications. In this study, for the first time, we determined the bioactive components and antioxidant activities and antibacterial activities of the newly grown leaves of nine wild tree peony species (WTPS). A total of 276 bioactive components were identified through non-targeted metabolomics; more than 80% of the 276 metabolites identified are terpenoids and flavonoids. A total of 42 differential metabolites were quantitatively determined. The main differential metabolites were Paeoniflorin, Luteoloside, Hyperin, Apigenin-7-glucoside, Rhoifolin, and Cantharidin. Such a high terpenoid and flavonoid content of the leaf extracts renders them as species with strong antibacterial capacities, and most of the bacteria tested showed greater sensitivity derived from the members of subsection Vaginatae than those of subsection Delavayanae. All WTPS have significant antioxidant activity; this activity is attributed to high levels of the total phenolic content (TPC) and total flavonoid content (TFC), of which, among the nine WTPS, P. lutea has the strongest antioxidant capacity. Our results provided a theoretical basis for the in-deep application of tree peony leaves for food, medical, and pharmaceutical industries.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comprehensive Metabolite Profile Uncovers the Bioactive Components, Antioxidant and Antibacterial Activities in Wild Tree Peony Leaves

Xin

Yang

Niu

et al. 2023

IJMS

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“…For extracting hydrosol, the method described for peony hydrosol extraction was followed [ 42 ], which was optimized by our group. Seven Lamiaceae species plants’ hydrosols were prepared by steam distillation.…”

Section: Methodsmentioning

confidence: 99%

Investigation of Volatile Components and Assessment of Antioxidant Potential in Seven Lamiaceae Plant Hydrosols

Xin,

Wang,

Yang

et al. 2023

Molecules

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Aromatic plants of the family Lamiaceae, especially of the genus Thymus, have promising antioxidant applications in pharmacology, medicine, food, cosmetology, and aromatherapy. Hydrosols (HDs) were extracted by hydrodistillation from seven species of Lamiaceae, including Thymus vulgaris, Thymus mongolicus, Mentha × piperita, Melissa officinalis, Rosmarinus officinali, Salvia elegans, and Leonurus artemisia. In total, 369 volatile components were determined and analyzed by gas chromatography–mass spectrometry (GC-MS). Among them, alcohols (2.86–28.48%), ethers (2.46–10.69%), and phenols (0.11–21.78%) constituted a large proportion, mainly linalool (0.28–19.27%), eucalyptol (0.16–6.97%), thymol (0–19.54%), and carvacrol (0–26.82%). Multivariate statistical analyses were performed and 27 differential metabolites were screened. Three different methods (ABTS+•, DPPH•, and FRAP) were used to determine the in vitro antioxidant activity of seven HDs. Thymus vulgaris hydrosols (Tv HDs) and Thymus mongolicus hydrosols (Tm HDs) had the strongest antioxidant activity and their stronger antioxidant capacity was related to their high levels of phenolic constituents, mainly thymol. The antioxidant activity of the other five Lamiaceae HDs was associated with their high alcohol (mainly linalool and eucalyptol) content, and the alcohol constituents may synergistically affect their antioxidant capacity. Therefore, the present study suggests that Lamiaceae plants can be utilized as antioxidant products or antioxidants in different industrial sectors including pharmaceuticals, food, cosmetics, and agrochemicals.

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“…Tree peony ( Paeonia section Moutan DC. ), an economically important plant that originated in China, has been cultivated for more than 2000 years for ornamental, medicinal, and edible oil use (Xin et al., 2022; Zhou et al., 2014). In the last decade, the seed oil of tree peony has attracted increasing interest because of the high content of unsaturated FAs (Zhang et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

The tree peony nuclear factor Y transcription factor PrNF‐YC2 promotes seed oil accumulation

Yang

Xin

et al. 2023

The Plant Journal

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SUMMARY Seed oil not only provides energy for seed postgermination development but also provides essential nutrients and raw materials for human products. However, the transcriptional regulatory mechanism controlling seed oil accumulation remains largely unknown. Tree peony (Paeonia rockii) is an emerging woody oilseed crop in China that is known for its high‐quality seed oil. Here, we revealed that a tree peony nuclear factor Y transcription factor, PrNF‐YC2, is expressed predominantly in developing seeds and functions as an essential positive regulator of seed oil accumulation. PrNF‐YC2 promoted oil accumulation in both transient ectopic overexpression Nicotiana benthamiana leaves and stable transgenic Arabidopsis thaliana seeds, globally upregulating the expression of genes involved in oil accumulation. In contrast, PrNF‐YC2‐silenced tree peony leaves using a virus‐induced gene silencing system showed reduced oil content and expression of oil synthesis‐related genes, including four master positive regulators contributing to oil accumulation, namely, LEAFY COTYLEDON1 (LEC1), ABSCISIC ACID INSENSITIVE3 (ABI3), FUSCA3 (FUS3), and WRINKLED1 (WRI1). We demonstrated that PrNF‐YC2 directly activates PrLEC1 and PrABI3 alone and indirectly activates PrFUS3 and PrWRI1 by interacting with PrLEC1. Moreover, interaction with PrLEC1 also enhances the activation capacity of PrNF‐YC2. The activation of these four master positive regulators by PrNF‐YC2 triggered the upregulation of numerous oil synthesis‐related genes, thus promoting oil accumulation. These findings provide new insights into the regulatory mechanism of seed oil accumulation and manipulation of PrNF‐YC2 may be beneficial for enhancing oil yield in tree peony and other oilseed crops.

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Bioactive components and antibacterial activities of hydrolate extracts by optimization conditions from Paeonia ostii T. Hong ＆ J. X. Zhang

Cited by 11 publications

References 43 publications

Comprehensive Metabolite Profile Uncovers the Bioactive Components, Antioxidant and Antibacterial Activities in Wild Tree Peony Leaves

Comprehensive Metabolite Profile Uncovers the Bioactive Components, Antioxidant and Antibacterial Activities in Wild Tree Peony Leaves

Investigation of Volatile Components and Assessment of Antioxidant Potential in Seven Lamiaceae Plant Hydrosols

The tree peony nuclear factor Y transcription factor PrNF‐YC2 promotes seed oil accumulation

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