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The purpose of this study was to evaluate the antioxidant and antimicrobial properties of extracts of different fractions of two tomato plant cultivars. The stems, roots, leaves, and whole-plant fractions were evaluated. Tomatine and tomatidine were identified by HPLC-DAD. The leaf extracts from the two varieties showed the highest flavonoids, chlorophyll, carotenoids, and total phenolics contents and the highest antioxidant activity determined by DPPH, ABTS, and ORAC. A positive correlation was observed between the antioxidant capacities of the extracts and the total phenolic, flavonoid, and chlorophyll contents. The Pitenza variety extracts inhibited the growth of pathogens such as E. coli O157:H7, Salmonella Typhimurium, Staphylococcus aureus, and Listeria ivanovii, yielding inhibition halos of 8.0 to 12.9 mm in diameter and MIC values of 12.5 to 3.125 mg/mL. These results suggest that tomato plant shows well potential as sources of various bioactive compounds, antioxidants, and antimicrobials.
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http://dx.doi.org/10.1155/2015/284071 | DOI Listing |
Rev Argent Microbiol
September 2025
IPICYT, División de Biología Molecular, Laboratorio de Genómica Funcional y Comparativa, Camino a la Presa San José 2055, Col. Lomas 4 Sección, 78216 San Luis Potosí, SLP, Mexico.
Fungal diseases in agricultural crops cause economic losses, with chemical control being the conventional method to manage them. However, this approach negatively impacts both the environment and human health. This study focused on endophytic fungi isolated from the roots of Ceratozamia mirandae in the Mexican locality of Juan Sabines (Villa Corzo, Chiapas).
View Article and Find Full Text PDFPestic Biochem Physiol
November 2025
College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China. Electronic address:
Tomato Fusarium wilt, caused by the soil-borne pathogen Fusarium oxysporum f. sp. lycopersici (Fol), poses a significant threat to global tomato production, resulting in severe losses in both yield and quality.
View Article and Find Full Text PDFPestic Biochem Physiol
November 2025
Newcastle University, School of Natural and Environmental Sciences, Newcastle upon Tyne, UK NE1 7RU. Electronic address:
RNA interference (RNAi) is an endogenous eukaryote viral defence mechanism representing a unique form of post-transcriptional gene silencing that can be induced via the exongenous application of dsRNA. Due to its high specificity, dsRNA-based biopesticides are being developed to control pest insects. Whilst many lepidopteran species are recalcitrant to RNAi, Tuta absoluta, a polyphagous insect responsible for extensive crop damage, is sensitive.
View Article and Find Full Text PDFPestic Biochem Physiol
November 2025
State Key Laboratory of Green Pesticides, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China. Electronic address:
The overreliance on traditional chemical fungicides, combined with the emergence of resistance, poses significant challenges for food safety. Early blight, caused by the fungal pathogen Alternaria solani (A. solani), is among the most significant contributors to pre- and postharvest yield losses in tomato cultivation.
View Article and Find Full Text PDFInt J Biol Macromol
September 2025
Plant Biotechnology Research Center, Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Minhang, Shanghai, 200240, China. Electronic address:
Vitamin A deficiency is one of the most severe micronutrient-related health issues worldwide. Tomatoes, a widely cultivated crop for their adaptability, nutritional value, and lycopene content (a beta-carotene precursor), are ideal candidates for biofortification. In this study, CRISPR-mediated knockout mutants (cr-SlLCYe and cr-SlBCH) were generated to enhance the precursor supply to the β-carotene biosynthetic pathway and reduce its degradation.
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