Protein and alkaloid patterns of the floral nectar in some solanaceous species

Kerchner, András; Darók, J.; Bacskay, Ivett; Felinger, Attila; Jakab, Gábor; Farkas, Ágnes

doi:10.1556/018.66.2015.3.6

Cited by 8 publications

(5 citation statements)

References 49 publications

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“…The cross section presented a single-layered epidermis, compact homogeneous ground parenchyma with dense cytoplasm, and vascularization external to the nectary ( Figure 3 B,D). Similar traits were described by other authors [ 33 , 35 , 36 , 37 ]; in fact, Cocucci and Galetto [ 38 ] pointed out that tobacco nectary dimentions and features seem to be associated with the sphingophilic × chireptophilic inheritance of Nicotiana nectaries and Solanaceae in general.…”

Section: Resultssupporting

confidence: 84%

Morphological Characterization of Nicotiana tabacum Inflorescences and Chemical-Functional Analysis of Extracts Obtained from Its Powder by Using Green Solvents (NaDESs)

Leal

Moreno

Albornoz

et al. 2023

Plants

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The production of smokeable tobacco for use in cigarettes is characterized by the production of pre-harvest and post-harvest waste, with ensuing undesirable effects on the environment. The inflorescences of tobacco after blunting, deflowering, or topping are considered pre-harvest waste and left in the field. Using green and ecofriendly solvents such as Natural deep eutectic solvents (NaDESs), these wastes could be used to obtain antioxidant molecules of interest in cosmetics. Taking into account its potential as plant matrix to obtain metabolites of commercial interest, tobacco inflorescences and inflorescence powders of different particle sizes were characterized by optic and electronic microscopy. Thus, the powdered inflorescences were extracted with four conventional solvents, i.e., distilled water (DW), acetone: distilled water (AW), ethanol 70° (EW), methanol (Me), and five NaDESs, i.e., lactic acid: sucrose (LAS), lactic acid: sucrose: distilled water (SALA), fructose: glucose: sucrose: distilled water (FGS), choline chloride: urea: distilled water (CU), and citric acid: propylene glycol (CAP). Among the tested NADESs, SALA was the most promising solvent; higher extraction yields of total phenolic compound (3420.0 ± 9.4 µg GAE/mL) than conventional solvents were attained and it was the only selective solvent to phenolics. CU was the best solvent for flavonoids and alkaloids extraction (215.3 ± 3.2 µg QE/mL and 392.3 ± 8.0 µg ACE/mL, respectively). All extracts showed antioxidant activity. A heatmap with dendrogram and main component analysis showed that acid-based NaDESs are grouped together, this group being the one with the best performance in H2O2 scavenging. The extracts obtained with green solvents could be used directly in cosmetic formulations as antioxidant ingredients because both tobacco flower oil and flower extracts are listed in the cosmetic ingredients database as non-toxic products. Additionally, the demand for sustainable ecological cosmetics is growing. In this sense, NaDESs represent an opportunity to develop innovative extracts with unique phytochemical fingerprints and biological activities.

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Section: Resultssupporting

confidence: 84%

Morphological Characterization of Nicotiana tabacum Inflorescences and Chemical-Functional Analysis of Extracts Obtained from Its Powder by Using Green Solvents (NaDESs)

Leal

Moreno

Albornoz

et al. 2023

Plants

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“…It is known that species from the genus Brugmansia are commonly associated with toxicity due to the presence of different alkaloids, among which the presence of atropine and scopolamine in different organs stands out [ 75 , 114 ]. The concentrations of these alkaloids vary according to seasonality, nutritional status, and organ; thus, in the leaves, there are concentrations of atropine (0.79 ± 0.03 mg/g) and scopolamine (0.72 ± 0.05 mg/g) in dry presentation, while the scopolamine concentrations in nectar are increased in the flowers (149.80 ± 6.01 μg/mL) [ 75 , 115 ]. The main symptoms most related to toxicity are dry and red dermis, pupil dilation, hallucinations, headaches, hysteria, dry mouth, tachycardia, arrhythmias, fever, epilepsy, urinary incontinence, and other anticholinergic symptoms [ 116 ].…”

Section: Resultsmentioning

confidence: 99%

Therapeutic Potential of Bioactive Compounds from Brugmansia suaveolens Bercht. & J. Presl

et al. 2023

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Brugmansia suaveolens Bercht. & J. Presl has been widely used due to the presence of different bioactive compounds. This review summarizes the latest advances and perspectives of the B. suaveolens plant species; it is a systematic literature review on aspects of botany, traditional uses, phytochemistry, pharmacology, and toxicology as therapeutic potential. In addition, 120 compounds are described, including alkaloids, flavonoids, terpenoids, steroids, amino acids, aromatics, and aliphatics. As for the therapeutic potential, it is described in extracts and compounds in the antitumor, anti-inflammatory, antioxidant, antimicrobial, antispasmodic, anticoagulant, and analgesic aspects, as well as the effects on the central nervous system. The toxicity of the genus stands out, especially the potential for organ toxicity. Therefore, this review evidenced the knowledge related to the traditional use based on the scientific research of Brugmansia suaveolens, highlighting an overview of bioactive compounds and biological and toxicological activities in order to provide a scientific basis for future studies on the value of this species for the development of new natural products.

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“…Brugamnsia suaveolens is widely distributed around the world ( Figure 2 ), including in the USA [ 2 ], Mexico [ 18 ], Honduras, Nicaragua, Panama, El Salvador, Paraguay, and the Antilles [ 3 ], Argentina [ 19 ], Bolivia [ 20 ], Costa Rica [ 21 ], Colombia [ 22 ], Ecuador [ 23 ], Venezuela [ 24 ], Peru [ 6 ], Chile [ 25 ], Brazil [ 18 ], Korea [ 26 ], Vietnam [ 27 ], Taiwan [ 28 ], India [ 29 ], Indonesia [ 30 ], Butan [ 16 ], Sri Lanka [ 12 ], Pakistan [ 15 ], Turkey [ 31 ], Australia [ 32 ], New Zealand [ 33 ], Cameroon, Madagascar, Tanzania [ 3 ], Uganda [ 34 ], Italy, Bulgaria [ 35 ], Netherlands [ 35 ], Germany [ 36 ], Hungary [ 37 ], Greece [ 38 ], and Sweden [ 39 ].…”

Section: Botanymentioning

confidence: 99%

“…Among the most toxic compounds are atropine and scopolamine, and their averages in the flowers are 0.79 ± 0.03 and 0.72 ± 0.05 mg/g of dry plant, respectively; these concentrations will increase if the plant is fertilized with organic fertilizer (6 kg/m 2 per year) [ 44 ]. In another study, a scopolamine concentration of 149.80 ± 6.01 µg/mL was determined in the flower nectar [ 37 ]. The plant parts that are the most involved in poisoning are flowers (77.5%), leaves (13.4%), fruits (4.5%), stem (2.3%), and root (2.3%) [ 60 ].…”

Section: Toxicitymentioning

confidence: 99%

Chemical Compounds, Pharmacological and Toxicological Activity of Brugmansia suaveolens: A Review

Petricevich¹,

Salinas-Sánchez

Avilés-Montes

et al. 2020

Plants

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This study investigates updated information in different search engines on the distribution, phytochemistry, pharmacology, and toxicology of Brugmansia suaveolens (Solanaceae) using the extracts or chemical compounds at present. This plant has been used in traditional medicine in different cultures as a hallucinatory, analgesic, aphrodisiac, nematicide, sleep inducer, and muscle relaxant, as well as a treatment for rheumatism, asthma, and inflammation. The flowers, fruits, stems, and roots of the plant are used, and different chemical compounds have been identified, such as alkaloids, volatile compounds (mainly terpenes), coumarins, flavonoids, steroids, and hydrocarbons. The concentration of the different compounds varies according to the biotic and abiotic factors to which the plant is exposed. The toxic effect of the plant is mainly attributed to atropine and scopolamine, their averages in the flowers are 0.79 ± 0.03 and 0.72 ± 0.05 mg/g of dry plant, respectively. Pharmacological studies have shown that an aqueous extract exhibits the antinociceptive effect, at doses of 100 and 300 mg/kg i.p. in mice. On the other hand, the ethanolic extract at 1000 mg/L, showed a nematocidal activity in vitro of 64% against Meloidogyne incognita in 72 h. Likewise, it showed a 100% larvicidal activity at 12.5 mg/L against Ancylostoma spp. In another study, the lethal activity of shrimp in brine from an ethanolic extract showed an LC50 of 106 µg/mL at double serial concentrations of 1000–0 (µg/mL). Although there are pharmacological and phytochemical studies in the plant, they are still scarce, which has potential for the examination of the biological activity of the more than one hundred compounds that have been reported, many of which have not been evaluated.

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Protein and alkaloid patterns of the floral nectar in some solanaceous species

Cited by 8 publications

References 49 publications

Morphological Characterization of Nicotiana tabacum Inflorescences and Chemical-Functional Analysis of Extracts Obtained from Its Powder by Using Green Solvents (NaDESs)

Morphological Characterization of Nicotiana tabacum Inflorescences and Chemical-Functional Analysis of Extracts Obtained from Its Powder by Using Green Solvents (NaDESs)

Therapeutic Potential of Bioactive Compounds from Brugmansia suaveolens Bercht. & J. Presl

Chemical Compounds, Pharmacological and Toxicological Activity of Brugmansia suaveolens: A Review

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