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Rafiq MT, Sajid ZA, Khilji SA. Graphene Oxide Nanoparticle-Assisted Promotion of Stevioside, Rebaudioside A, and Selected Biochemical Attributes in Stevia rebaudiana Bertoni. SCIENTIFICA 2024; 2024:6693085. [PMID: 38855035 PMCID: PMC11161264 DOI: 10.1155/2024/6693085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 05/03/2024] [Accepted: 05/17/2024] [Indexed: 06/11/2024]
Abstract
Stevia rebaudiana Bert. is commonly known as candy leaf, sugar leaf, or sweet leaf. It is a natural sweetener that has low calories and is used as a substitute for sucrose. The objective of this research is to evaluate the effects of graphene oxide (GO) on the growth, biochemical activities, and stevioside and rebaudioside A production of Stevia in in vitro-raised plantlets. For this, green nanomaterials of GO (0, 2, 4, 6, 8, and 10 mgL-1) were applied to the in vitro plants to enhance its sweetness by triggering the production of stevioside and rebaudioside A and other growth and biochemical parameters. It was observed that all the growth parameters of Stevia plants significantly increased with all GO treatments tested. Total chlorophyll and protein contents were increased (1.85- and 2.65-fold increase from the control) by applying 8 mgL-1 of GO to the MS medium. The maximum value (4 mg·g-1 of protein) of peroxidase activity (POD) was observed by applying 4 mgL-1 of GO, 28.92-fold increase from the control. In comparison, superoxide dismutase activity (SOD) (0.4 mg·g-1 protein) was observed with 10 mgL-1 of GO (1.56-fold increase from the control). Stevioside (12.9 and 8.9 mg·g-1 DW) and rebaudioside A (3.2 and 0.81 mg·g-1 DW) were observed only at 6 and 8 mg·L-1 treatment of graphene oxide. According to the findings, using graphene oxide (GO) had a significant impact on the growth, biochemical activities, and steviol glycoside production in Stevia. This shows that GO has the potential to be a valuable enhancer of sweetness and overall Stevia leaf quality, providing great prospects for the development of low-calorie natural sweeteners.
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Affiliation(s)
- Muhammad Talha Rafiq
- Plant Developmental and Regenerative Biology Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus 54590, Lahore, Pakistan
| | - Zahoor Ahmad Sajid
- Plant Developmental and Regenerative Biology Laboratory, Institute of Botany, University of the Punjab, Quaid-e-Azam Campus 54590, Lahore, Pakistan
| | - Sheza Ayaz Khilji
- Department of Botany, Division of Science and Technology, University of Education Township, Lahore, Pakistan
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Wilczańska A, Sparzak-Stefanowska B, Kokotkiewicz A, Jesionek A, Królicka A, Łuczkiewicz M, Krauze-Baranowska M. Biotechnological strategies for controlled accumulation of flavones in hairy root culture of Scutellaria lateriflora L. Sci Rep 2023; 13:20422. [PMID: 37990031 PMCID: PMC10663461 DOI: 10.1038/s41598-023-47757-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/17/2023] [Indexed: 11/23/2023] Open
Abstract
Accumulation of medicinally important flavones and acteoside was evaluated in Scutellaria lateriflora hairy root cultures subjected to different experimental strategies - feeding with precursors of phenolics biosynthesis (phenylalanine, cinnamic acid, and sodium cinnamate), addition of elicitors (chitosan, jasmonic acid) and Amberlite XAD-4 and XAD-7 resins and permeabilization with dimethyl sulfoxide (DMSO) and methanol. The production profile of S. lateriflora cultures changed under the influence of the applied strategies. Hairy roots of S. lateriflora were found to be a rich source of wogonoside or wogonin, depending on the treatment used. The addition of sodium cinnamate (1.0 mg/L) was the most effective approach to provide high production of flavonoids, especially wogonoside (4.41% dry weight /DW/; 566.78 mg/L). Permeabilization with DMSO (2 µg/ml for 12 h) or methanol (30% for 12 h) resulted in high biosynthesis of wogonin (299.77 mg/L and 274.03 mg/L, respectively). The obtained results provide new insight into the selection of the optimal growth conditions for the production of in vitro biomass with a significant level of flavone accumulation. The data may be valuable for designing large-scale cultivation systems of hairy roots of S. lateriflora with high productivity of bioactive compounds - wogonin or wogonoside.
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Affiliation(s)
- Agata Wilczańska
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland
| | - Barbara Sparzak-Stefanowska
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland
| | - Adam Kokotkiewicz
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland
| | - Anna Jesionek
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland
| | - Aleksandra Królicka
- Laboratory of Biologically Active Compounds, Intercollegiate Faculty of Biotechnology of University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, A. Abrahama 58, 80-307, Gdańsk, Poland
| | - Maria Łuczkiewicz
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland
| | - Mirosława Krauze-Baranowska
- Department of Pharmacognosy with Medicinal Plant Garden, Medical University of Gdańsk, Al. Gen J. Hallera 107, 80-416, Gdańsk, Poland.
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Habibi F, García-Pastor ME, Puente-Moreno J, Garrido-Auñón F, Serrano M, Valero D. Anthocyanin in blood oranges: a review on postharvest approaches for its enhancement and preservation. Crit Rev Food Sci Nutr 2023; 63:12089-12101. [PMID: 35822279 DOI: 10.1080/10408398.2022.2098250] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Anthocyanin concentration is considered an important fruit quality index of blood oranges and has gained popularity among consumers due to its antioxidant capacity, therapeutic properties, and prevention of some human diseases. Anthocyanin biosynthesis occurs in the cytoplasmic face of the endoplasmic reticulum by multi-enzymes complexes through the flavonoid pathway. Polyphenoloxidase (PPO) and β-glucosidase (anthocyanase) are the enzymes responsible for anthocyanin degradation. Blood oranges are cold-dependent for anthocyanin biosynthesis and accumulation, and thus, the low temperature of storage can enhance anthocyanin concentration and improve internal fruit quality. In addition, anthocyanin accumulation can be accelerated by postharvest technologies, either physical treatments or chemical elicitors. However, low temperatures can induce chilling injury (CI) incidence in blood oranges. Postharvest chemical elicitors treatments can enhance anthocyanin accumulation and prevent CI. This review provides the most updated information about postharvest tools modulating the anthocyanin content, and the role of enhancing and preserving pigmentation to produce blood orange with the highest quality standards.
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Affiliation(s)
- Fariborz Habibi
- Department of Food Technology, University Miguel Hernández. Ctra, Orihuela, Alicante, Spain
| | | | - Jenifer Puente-Moreno
- Department of Food Technology, University Miguel Hernández. Ctra, Orihuela, Alicante, Spain
| | - Fernando Garrido-Auñón
- Department of Food Technology, University Miguel Hernández. Ctra, Orihuela, Alicante, Spain
| | - María Serrano
- Department of Applied Biology, University Miguel Hernández. Ctra, Orihuela, Alicante, Spain
| | - Daniel Valero
- Department of Food Technology, University Miguel Hernández. Ctra, Orihuela, Alicante, Spain
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Giorni P, Zhang L, Bavaresco L, Lucini L, Battilani P. Metabolomics Insight into the Variety-Mediated Responses to Aspergillus carbonarius Infection in Grapevine Berries. ACS OMEGA 2023; 8:32352-32364. [PMID: 37720731 PMCID: PMC10500680 DOI: 10.1021/acsomega.3c01381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 07/03/2023] [Indexed: 09/19/2023]
Abstract
Limited knowledge regarding the susceptibility of grape varieties to ochratoxin A (OTA)-producing fungi is available to date. This study aimed to investigate the susceptibility of different grape varieties to Aspergillus carbonarius concerning OTA contamination and modulation at the metabolome level. Six grape varieties were selected, sampled at early veraison and ripening, artificially inoculated with A. carbonarius, and incubated at two temperature regimes. Significant differences were observed across cultivars, with Barbera showing the highest incidence of moldy berries (around 30%), while Malvasia and Ortrugo showed the lowest incidence (about 2%). OTA contamination was the lowest in Ortrugo and Malvasia, and the highest in Croatina, although it was not significantly different from Barbera, Merlot, and Sauvignon Blanc. Fungal development and mycotoxin production changed with grape variety; the sugar content in berries could also have played a role. Unsupervised multivariate statistical analysis from metabolomic fingerprints highlighted cultivar-specific responses, although a more generalized response was observed by supervised OPLS-DA modeling. An accumulation of nitrogen-containing compounds (alkaloids and glucosinolates), phenylpropanoids, and terpenoids, in addition to phytoalexins, was observed in all samples. A broader modulation of the metabolome was observed in white grapes, which were less contaminated by OTA. Jasmonates and oxylipins were identified as critical upstream modulators in metabolomic profiles. A direct correlation between the plant defense machinery and OTA was not observed, but the information was acquired and can contribute to optimizing preventive actions.
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Affiliation(s)
- Paola Giorni
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Leilei Zhang
- Department
for Sustainable Food Process, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Luigi Bavaresco
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Luigi Lucini
- Department
for Sustainable Food Process, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
| | - Paola Battilani
- Department
of Sustainable Crop Production, Università
Cattolica del Sacro Cuore, Via Emilia Parmense 84, 29122 Piacenza, Italy
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The Influence of Exogenous Jasmonic Acid on the Biosynthesis of Steroids and Triterpenoids in Calendula officinalis Plants and Hairy Root Culture. Int J Mol Sci 2022; 23:ijms232012173. [PMID: 36293029 PMCID: PMC9603384 DOI: 10.3390/ijms232012173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/29/2022] [Accepted: 10/10/2022] [Indexed: 12/03/2022] Open
Abstract
The interplay between steroids and triterpenoids, compounds sharing the same biosynthetic pathway but exerting distinctive functions, is an important part of the defense strategy of plants, and includes metabolic modifications triggered by stress hormones such as jasmonic acid. Two experimental models, Calendula officinalis hairy root cultures and greenhouse cultivated plants (pot plants), were applied for the investigation of the effects of exogenously applied jasmonic acid on the biosynthesis and accumulation of steroids and triterpenoids, characterized by targeted GC-MS (gas chromatography-mass spectroscopy) metabolomic profiling. Jasmonic acid elicitation strongly increased triterpenoid saponin production in hairy root cultures (up to 86-fold) and their release to the medium (up to 533-fold), whereas the effect observed in pot plants was less remarkable (two-fold enhancement of saponin biosynthesis after a single foliar application). In both models, the increase of triterpenoid biosynthesis was coupled with hampering the biomass formation and modifying the sterol content, involving stigmasterol-to-sitosterol ratio, and the proportions between ester and glycoside conjugates. The study revealed that various organs in the same plant can react differently to jasmonic acid elicitation; hairy root cultures are a useful in vitro model to track metabolic changes, and enhanced glycosylation (of both triterpenoids and sterols) seems to be important strategy in plant defense response.
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