Responses of <Emphasis Type="Italic">Fusarium oxysporum</Emphasis> f. sp. <Emphasis Type="Italic">niveum</Emphasis> to exogenously added sinapic acid in vitro |
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Authors: | Hong-sheng Wu Yang Wang Wei Bao Dong-yang Liu Waseem Raza Qi-wei Huang Ze-sheng Mao Qi-rong Shen |
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Institution: | (1) College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, 210095, China;(2) Jiangsu Key Laboratory for Solid Organic Waste Utilization, Nanjing, 210095, China;(3) Nanjing University of Information Science and Technology, Nanjing, 210044, China |
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Abstract: | To assess the influence of phenolic acids from plant root exudates on soil pathogens, we studied the effect of sinapic acid
added to chemically defined media on the growth and virulence factors of Fusarium oxysporum f. sp. niveum. Sinapic acid inhibited the growth and conidial formation and germination of F. oxysporum f. sp. niveum by 6.7–8.8% and 11.2–37.3%, respectively. Mycotoxin production by F. oxysporum f. sp. niveum was stimulated by 81.6–230.7%. Pectinase, proteinase, cellulase, and amylase activities were stimulated at a lower concentration
of sinapic acid, while they were inhibited at a higher concentration. It is concluded that sinapic acid inhibited the growth
and conidial germination of F. oxysporum f. sp. niveum and decreased the pathogenic enzymes’ activity at higher doses. |
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Keywords: | Fusarium oxysporum f sp niveum Plant– microbe interaction Sinapic acid Virulence factors |
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