Preliminary Study on the Activity of Phycobiliproteins against Botrytis cinerea
1
Department of Agricultural and Food Sciences, University of Bologna, Viale G. Fanin, 40, 40127 Bologna, Italy
2
Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio, 48, 40126 Bologna, Italy
3
Banco Español de Algas, Universidad de Las Palmas de Gran Canaria, 35214 Telde, Gran Canaria, Spain
*
Author to whom correspondence should be addressed.
Mar. Drugs 2020, 18(12), 600; https://doi.org/10.3390/md18120600
Received: 9 November 2020
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Revised: 25 November 2020
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Accepted: 26 November 2020
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Published: 28 November 2020
(This article belongs to the Collection Microalgal Active Biomolecules)
Phycobiliproteins (PBPs) are proteins of cyanobacteria and some algae such as rhodophytes. They have antimicrobial, antiviral, antitumor, antioxidative, and anti-inflammatory activity at the human level, but there is a lack of knowledge on their antifungal activity against plant pathogens. We studied the activity of PBPs extracted from Arthrospiraplatensis and Hydropuntiacornea against Botrytiscinerea, one of the most important worldwide plant-pathogenic fungi. PBPs were characterized by using FT-IR and FT-Raman in order to investigate their structures. Their spectra differed in the relative composition in the amide bands, which were particularly strong in A. platensis. PBP activity was tested on tomato fruits against gray mold disease, fungal growth, and spore germination at different concentrations (0.3, 0.6, 1.2, 2.4, and 4.8 mg/mL). Both PBPs reduced fruit gray mold disease. A linear dose–response relationship was observed for both PBPs against disease incidence and H. cornea against disease severity. Pathogen mycelial growth and spore germination were reduced significantly by both PBPs. In conclusion, PBPs have the potential for being also considered as natural compounds for the control of fungal plant pathogens in sustainable agriculture.
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Keywords:
red algae; rhodophyta; cyanobacteria; phycobiliproteins; Botrytis cinerea; plant pathogen; gray mold; plant disease control; fungicidal activity; FT-IR; FT-Raman
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MDPI and ACS Style
Righini, H.; Francioso, O.; Di Foggia, M.; Quintana, A.M.; Roberti, R. Preliminary Study on the Activity of Phycobiliproteins against Botrytis cinerea. Mar. Drugs 2020, 18, 600. https://doi.org/10.3390/md18120600
AMA Style
Righini H, Francioso O, Di Foggia M, Quintana AM, Roberti R. Preliminary Study on the Activity of Phycobiliproteins against Botrytis cinerea. Marine Drugs. 2020; 18(12):600. https://doi.org/10.3390/md18120600
Chicago/Turabian StyleRighini, Hillary, Ornella Francioso, Michele Di Foggia, Antera M. Quintana, and Roberta Roberti. 2020. "Preliminary Study on the Activity of Phycobiliproteins against Botrytis cinerea" Marine Drugs 18, no. 12: 600. https://doi.org/10.3390/md18120600
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