The Antimicrobial Activity of Water Extracts From Labiatae

Salamone, A.; Zizzo, G.V.; Scarito, G.

doi:10.17660/actahortic.2006.723.67

Cited by 7 publications

(3 citation statements)

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“…Juss. extract [ 56 ]; and would be substantially better than those reported for extracts from Origanum heracleoticum Benth., Salvia officinalis L., Rosmarinus officinalis L., Mentha piperita L., Thymus vulgaris L., and Lavandula angustifolia Mill., among others [ 57 , 58 , 59 ].…”

Section: Discussionmentioning

confidence: 99%

Phytochemical Profiling of Sambucus nigra L. Flower and Leaf Extracts and Their Antimicrobial Potential against Almond Tree Pathogens

Sánchez-Hernández

Balduque-Gil

García

et al. 2023

IJMS

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Despite extensive research on the chemical composition of elderberries and their numerous uses in pharmaceutical, beverage, and food production, there is still a lack of knowledge about Sambucus nigra leaves and flowers’ antimicrobial activity against plant pathogens. In this study, the phytoconstituents of their aqueous ammonia extracts were first characterized by infrared spectroscopy and gas chromatography–mass spectrometry. The major phytocompounds identified in the flower extract were octyl 2-methylpropanoate; 3,5-dihydroxy-6-methyl-2,3-dihydropyran-4-one; propyl malonic acid; adenine; and 1-methyl-2-piperidinemethanol. Concerning the leaf extract, 1,6-anhydro-β-D-glucopyranose; oleic acid; 2,1,3-benzothiadiazole; 2,3-dihydro-benzofuran; and 4-((1E)-3-hydroxy-1-propenyl)-2-methoxyphenol and other phenol derivatives were the main constituents. The potential of the extracts to act as bioprotectants was then investigated against three almond tree pathogens: Diaporthe amygdali, Phytophthora megasperma, and Verticillium dahliae. In vitro tests showed higher activity of the flower extract, with EC90 values in the 241–984 μg·mL−1 range (depending on the pathogen) vs. 354–1322 μg·mL−1 for the leaf extract. In addition, the flower extract led to full protection against P. megasperma at a dose of 1875 μg·mL−1 in ex situ tests on artificially-infected excised almond stems. These inhibitory concentrations were lower than those of commercial fungicides. These findings suggest that S. nigra aerial organs may be susceptible to valorization as an alternative to synthetic fungicides for the protection of this important crop.

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Section: Discussionmentioning

confidence: 99%

Phytochemical Profiling of Sambucus nigra L. Flower and Leaf Extracts and Their Antimicrobial Potential against Almond Tree Pathogens

Sánchez-Hernández

Balduque-Gil

García

et al. 2023

IJMS

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“…Inhibitory values reported in the literature for bioactive natural substances against the pathogens under study. References [90][91][92][93][94][95] are cited in the Supplementary Materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Valorization of Quercus suber L. Bark as a Source of Phytochemicals with Antimicrobial Activity against Apple Tree Diseases

Sánchez-Hernández

García

Casanova-Gascón

et al. 2022

Plants

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Cork, an anatomic adaptation of the bark of Quercus suber L. through its suberization process, finds its main application in the production of bottle stoppers. Its processing results in a large waste stream of cork fragments, granulates, and dust, which may be susceptible to valorization. The work presented here explored the use of its extracts to inhibit the growth of phytopathogenic microorganisms associated with apple tree diseases. The in vitro antimicrobial activity of cork aqueous ammonia extract was assayed against four fungi, viz. Monilinia fructigena and M. laxa (brown rot), Neofussicoccum parvum (dieback), and Phytophthora cactorum (collar and root rot), and two bacteria, viz. Erwinia amylovora and Pseudomonas syringae pv. syringae, either alone or in combination with chitosan oligomers (COS). Effective concentration values of EC90 in the 675–3450 μg·mL−1 range, depending on the fungal pathogen, were obtained in growth inhibition tests, which were substantially improved for the conjugate complexes (340–801 μg·mL−1) as a result of strong synergism with COS. Similar enhanced behavior was also observed in antibacterial activity assays, with MIC values of 375 and 750 μg·mL−1 for the conjugate complexes against P. syringae pv. syringae and E. amylovora, respectively. This in vitro inhibitory activity was substantially higher than those exhibited by azoxystrobin and fosetyl-Al, which were tested for comparison purposes, and stood out among those reported for other natural compounds in the literature. The observed antimicrobial activity may be mainly attributed to the presence of glycerin and vanillic acid, identified by gas chromatography–mass spectroscopy. In the first step towards in-field application, the COS–Q. suber bark extract conjugate complex was further tested ex situ against P. cactorum on artificially inoculated excised stems of the ‘Garnem’ almond rootstock, achieving high protection at a dose of 3750 μg·mL−1. These results suggest that cork industrial leftovers may, thus, be a promising source of bioactive compounds for integrated pest management.

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“…A. Salamone зі співавторами (Salamone et al, 2006) і A. Gormez із співавторами (Gormez et al, 2015) відзначають рослини, які належать до родини Lamiaceae, як джерело потенційних протимікробних засобів. Вони мають широкий спектр впливу на організм, оскільки є багатокомпонентними сумішами хімічних сполук, переважно терпеноїдів та ароматичних компонентів (Шанайда і Покришко, 2015).…”

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Antimicrobial Activity of Oil-Bearing Plants Lamiaceae Lindl. Towards Escherichia Coli

Kotyuk¹

2016

Biol. Bull. of Bogdan Chmelnitskiy Melitopol St. Pedag. Univ.

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Ефіроолійні рослини родини Lamiaceae, які зростали в умовах Житомирського Полісся, відзначаються антимікробними властивостями завдяки утворенню і накопиченню у рослинній сировині біологічно активних речовин. Основні компоненти ефірної олії гісопу лікарського -це ізопінокамфон (44,43 %), пінокамфон (35,49 %), міртенол (5,26 %), гермакрен D (3,15 %), пулегон (2,93 %), біциклогермакрен (1,35 %). У ефірній олії лофанту ганусового переважали пулегон (59,19%), ізоментон (14,34%), біциклогермакрен (3,21 %), β-каріофілен (2,99 %), ментон (2,21 %), 1,6-гермакрадієн-5-ол (1,5 %), ізопулегон (1,4 %), у чаберу садового -карвакрол (89,07 %), γ-терпінен (3,53 %), α-туйон (1,7 %), камфора (1,48 %). Домінуючі компоненти ефірної олії змієголовника молдавського -гераніаль (26,19 % ), нераль (22,36 % ), гераніол (16,86 %), 2-(1-окси-1-ізопропіл)-циклопентанон (8,29 %), 2,3-дегідро-1,8-цинеол (6,87 %), 3-(1-окси-1-ізопропіл)-циклопентанон (6,51 %), нерол (4,74 %), 3-метил-2-циклогексен 1-он (2,13 %).Відмічено перспективність подальшого детальнішого вивчення етанольних екстрактів трави гісопу лікарського, змієголовника молдавського, чаберу садового, лофанту ганусового з метою виготовлення антибактеріальних рослинних препаратів.Ключові слова: Lamiaceae, Escherichia coli, ефіроолійні рослини, етанольний екстракт, мінімальна бактеріостатична концентрація, мінімальна бактерицидна концентрація.

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The Antimicrobial Activity of Water Extracts From Labiatae

Cited by 7 publications

References 0 publications

Phytochemical Profiling of Sambucus nigra L. Flower and Leaf Extracts and Their Antimicrobial Potential against Almond Tree Pathogens

Phytochemical Profiling of Sambucus nigra L. Flower and Leaf Extracts and Their Antimicrobial Potential against Almond Tree Pathogens

Valorization of Quercus suber L. Bark as a Source of Phytochemicals with Antimicrobial Activity against Apple Tree Diseases

Antimicrobial Activity of Oil-Bearing Plants Lamiaceae Lindl. Towards Escherichia Coli

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