Hexanic extract of Achyrocline satureioides: antimicrobial activity and in vitro inhibitory effect on mechanisms related to the pathogenicity of Paenibacillus larvae

Rovey, María Fernanda Paletti; Sotelo, Jesica P.; Carezzano, María Evangelina; Huallpa, Carlos Leonel; Oliva, María de Las Mercedes

doi:10.1007/s11259-023-10086-1

Cited by 1 publication

(2 citation statements)

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“…A hexanic extract showed inhibitory and acidic properties in vitro against mechanisms related to the pathogenicity of Paenibacillus larvae (biofilm formation, swarming, synthesis of proteases). P. larvae attacks honeybee hives, and the extract was assessed to be safe for larvae and adult bees [32]. Other bacteria which the extract has been observed to antagonize include Enterococcus faecalis, Escherichia coli, Proteus mirabilis, Pseudomonas aeruginosa, Salmonella enterica serovar enteritidis, and Staphylococcus aureus [51].…”

Section: Discussionmentioning

confidence: 99%

“…Among such plants, Achyrocline satureioides (marcela), Minthostachys verticillata (peperina), Origanum vulgare (oregano), and Thymus vulgaris (thyme) stand out for their antimicrobial, antiviral, antioxidant, and immunomodulatory properties [16,[21][22][23][24][25][26][27][28][29][30][31][32]. The EOs that they synthesize as secondary metabolites are volatile compounds with potential uses in the pharmaceutical, food, agricultural, and cosmetic industries.…”

Section: Introductionmentioning

confidence: 99%

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Plant-Derived Essential Oils and Aqueous Extract as Potential Ingredients for a Biopesticide: Phytotoxicity in Soybean and Activity against Soybean Mosaic Virus

Carezzano,

Reyna,

Accotto

et al. 2023

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Soybean mosaic disease, caused by the soybean mosaic virus (SMV), is responsible for major losses in yield and seed quality worldwide. Although resistant cultivars are used for its prevention and control, an alternative strategy could consist of applying environmentally friendly antimicrobial agents, such as extracts and essential oils (EOs) of aromatic plants. This study assessed an extract of Achyrocline satureioides and EOs of Minthostachys verticillata, Origanum vulgare, and Thymus vulgaris in terms of their phytotoxicity in soybean. Since all the concentrations tested were found to be safe, the activity of each product against SMV was then assayed in vivo, i.e., in experimentally infected soybean plants. The parameters measured were plant height, wet weight, and virus titer. All the treated plants had a greater height and weight than those in the viral control group. The EOs of M. verticillata (0.80 mg/mL) and T. vulgaris (0.71 mg/mL) inhibited the production of viral antigens, as determined by an ELISA test. These findings could encourage further studies aimed at developing an effective biopesticide against SMV.

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Section: Discussionmentioning

confidence: 99%