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Title: Seaweed-Based Products and Mushroom β-Glucan as Tomato Plant Immunological Inducers
Authors: Melo, Paulo César de
Collela, Carolina Figueiredo
Sousa, Tiago 
Pacheco, Diana 
Cotas, João 
Gonçalves, Ana M. M. 
Bahcevandziev, Kiril 
Pereira, Leonel 
Keywords: Fusarium oxysporum; Kappaphycus alvarezii; fungicide; tomato
Issue Date: 13-Sep-2020
Project: UIDB/04292/2020—MARE 
European Regional Development Fund through the Interreg Atlantic Area Program, under the project NASPA (EAPA_451/2016). 
PTDC/BIA-CBI/31144/2017—POCI-01 project -0145-FEDER-031144—MARINE INVADERS, co-financed by the ERDF through POCI (Operational Program Competitiveness and Internationalization) and by the Foundation for Science and Technology (FCT, IP). 
University of Coimbra - contract IT057-18-7253 
Serial title, monograph or event: Vaccines
Volume: 8
Issue: 3
Abstract: The effects of the abiotic inducers β-glucan, extracted from Shiitake (Lentinula edodes), BFIICaB® (Kappaphycus alvarezii) and BKPSGII® (K. alvarezii X Sargassum sp.) on tomato plants infected with Fusarium oxysporum f. sp. lycopersici (FOL) were evaluated through the activity of enzymes related to the induction of resistance at 5 and 10 days after inoculation (DAI). Tomato plants (21 days old, after germination) were inoculated with the pathogen conidia suspension and sprayed with 0.3% aqueous solutions of the inducers. The activities of the enzymes β-1,3-glucanase, peroxidase and phenylalanine ammonia lyase (PAL) were evaluated in fresh tomato leaves collected at 5 and 10 DAI. In all treatments, peroxidase showed the highest enzymatic activity, followed by β-1,3-glucanase and PAL. Between the seaweeds, the inducers extracted from the red alga Kappaphycus alvarezii (BFIICaB®) promoted the highest enzymatic activity. The exception was BKPSGII® (K. alvarezii X Sargassum sp.) where the influence of Sargassum sp. resulted in higher peroxidase activity (4.48 Δab600 mg P-1 min-1) in the leaves, 10 DAI. Both the red seaweed K. alvarezii and the brown alga Sargassum sp. promoted activities of β-1,3-glucanase, peroxidase and PAL.
ISSN: 2076-393X
DOI: 10.3390/vaccines8030524
Rights: openAccess
Appears in Collections:I&D MARE - Artigos em Revistas Internacionais

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