Abstrakt
Secondary metabolites play an important role in plant protection mechanisms. Presented studies relate to the significant role of some phenolic compounds in health status of sweet pepper plants. Eight cultivars of sweet pepper (‘Barbórka’, ‘Caryca F1’, ‘Mercedes’, ‘Ożarowska’, ‘Podstolina’, ‘Roberta F1’, ‘Robertina’) were investigated in 2007–2009. Flavonoids and phenol acids content in leaves, stems, and roots of sweet pepper plants were analyzed. Flavonoids and phenol acids content was studied using isocratic HPLC method. Disease index of tested cultivars was evaluated in the field. The leaves, stems and roots of pepper were analyzed in the laboratory. The fungi most frequently isolated from pepper were Alternaria alternata, Fusarium spp., Botrytis cinerea, and Sclerotinia sclerotiorum. The highest content of flavonoids and phenol acids was in the leaves of pepper. Flavonoids content in plant parts was positively correlated with the intensity of colonization by pathogenic fungi. Sweet pepper cultivars ‘Caryca F1’ and ‘Roberta F1’ were characterised by low content flavonoids in the tested plant parts and they were colonized by the low number of pathogenic fungi. The cultivars most frequently colonized by pathogenic fungi such as ‘Barbórka’, ‘Podstolina’, ‘Robertina’, had a high content of flavonoids in the tested plant parts. There was no correlation between the content of phenol acids and health status of pepper cultivars.
Bibliografia
Bravo L., 1998. Polyphenols: chemistry dietary sources, metabolism and nutritional significance. Nutr. Rev. 56, 317–333.
Candela M.E., Alcazar M.D., Espin A., Egea C., Almela L., 1995. Soluble phenolic acids in Capsicum annuum stems infected with Phytophthora capsici. Plant Pathol. 44(1), 116–123.
Del Rio J.A., Báidez A.G., Botia, A. Ortuño J.M., 2003. Enhancement of phenolic compounds in olive plants (Olea europaea L.) and their influence on resistance against Phytophthora sp. Food Chem. 83(1), 75–78.
Eftekhari M., Alizadeh M., Ebrahimi P., 2012. Evaluation of the total phenolics and quercetin content of foliage in mycorrhizal grape (Vitis vinifera L.) varieties and effect of postharvest drying on quercetin yield. Ind. Crop Prod. 38, 160–165.
Harborne J.B., 1980. Plant phenolics. In: Encyclopedia of plant physiology, new series, vol. 8: Secondary plant products, Bell E.A., Charlwood B.V. (eds). Berlin, 329–402.
Harborne J.B., 1999. Classes and functions of secondary products from plants. In: Chemicals from plants, Walton N.J., Brown D.E. (eds). Word Sci., 1–27.
Hahlbrock K., Scheel D., 1989. Physiology and molecular biology of phenylopropanol metabolism. Annu. Rev. Plant Physiol. Plant Mol. Biol. 40, 347–369.
Jamiołkowska A., 2007. Effect of field pea (Pisum arvense L.) as cover plant on health of underground part of field tomato. Veg. Crops Res. Bull. 67, 71–79.
Jamiołkowska A., 2008. Pathogenicity of some isolates of Colletotrichum coccodes and Fusarium spp. to sweet pepper (Capsicum annuum) seedling. Phytopathol. Pol. 49, 65–71.
Jamiołkowska A., 2009. Fungi colonizing stems and leaves of hot pepper plants (Capsicum annuum L.) cultivated in field. EJPAU, 12, 2, http.//www.ejpau.media.pl
Jamiołkowska A., Buczkowska H., 2009. Grzyby występujące na papryce słodkiej (Capsicum annuum L.) w uprawie polowej. Progr. Plant Prot./Post. Ochr. Rośl. 49(1), 201–208.
Kozłowska M., Konieczny G., 2003. Biologia odporności roślin na patogeny i szkodniki. Wyd. AR Poznań, 173 pp.
Lattanzio V., Lattanzio V.M.T., Cardinali A., 2006. Role of phenolics in the resistance mechanisms of plants against fungal pathogens and insects. Phytochemystry: Advances in Research, 23–67.
Polish Pharmacopoeia VI, 2002. Polskie Towarzystwo Farmaceutyczne, Warszawa, 150–151.
Rotem J., 1994. The genus Alternaria. APS. Press, 326 pp .
Ruiz J.M., Romero L., 2001, Bioactivity of the phenolic compounds in higher plants. Stud. Nat. Prod. Chem. 25(6), 651–681.
Saniewska A., 2004. Antifungal activity of grapefruit (Citrus paradisi) endogenic flavonoids. Zesz. Probl. Post. Nauk Roln. 496, 609–617.
Saniewska A., Jarecka A., 2006. Wpływ endogennych flawonoidów grejpfruta (Citrus paradisi Macf.) na wzrost i rozwój dwóch form specjalnych Fusarium oxysporum Schlecht. Progr. Plant Prot./Post. Ochr. Rośl. 46(2), 517–520.
Singelton V.L., Rossi J.A. Jr., 1965, Colorimetry of total phenolics with phosphomlybdic – phosphotungstic acid reagents. Am. J. Enol. Vitic. 16, 144–158.
Talcott S.T., Howard L.R., 1999. Chemical and sensory quality of processed carrot puree as influenced by stress-induced phenolic compounds. J. Agric. Food Chem. 47, 1362–1366.
Wenzel H., 1948. Zur Erfassung des Schadenausmasses in Pflanzenschutzversuchen. Pflanzenschutzberichte 15, 81–84.
Wilson C.L., Wisniewski M.E., 1989. Biological control of postharvest diseases of fruits and vegetables: An emerging technology. Annu. Rev. Phytopathol. 27, 425–441.
Wittstock U., Gershenzon J., 2002. Constitutive plant toxins and their role in defense against herbivores and pathogens. Curr. Opin. Plant Biol. 5, 1–8.
Downloads
Download data is not yet available.
