|Table of Contents|

Inhibitory Effects of Syzygium aromaticum Ethanol Extract on Three Pathogenic Fungi Causing Soft Rot of ‘Hongyang’ Kiwifruit

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2024年22
Page:
15-23
Research Field:
Publishing date:

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Title:
Inhibitory Effects of Syzygium aromaticum Ethanol Extract on Three Pathogenic Fungi Causing Soft Rot of ‘Hongyang’ Kiwifruit
Author(s):
CHEN Lingling1; 2; ZHANG Shudong2; LIU Wenfeng2; HAN Xiaofei1; LING Lizhen2
(1.College of Life and Health，Dalian University，Dalian,Liaoning 116622;2.School of Biological and Technology,Liupanshui Normal University/Key Laboratory for Study and Utilization of Ethnic Medicinal Plant Resources of Western Guizhou Province，Liupanshui,Guizhou 553004)
Keywords:
Syzygium aromaticum; ‘Hongyang’ kiwifruit; soft rot; inhibitory effect
PACS:
S 435.6
DOI:
10.11937/bfyy.20241081
Abstract:
Taking the ‘Hongyang’ kiwifruit as the experimental material,the inhibitory effects of the ethanol extract of Syringa vulgaris on Phomopsis sp.,Diaporthe sp.and Alternaria alternata at different concentrations (3.125, 6.250, 12.500, 25.000 mg·mL-1 and 50.000 mg·mL-1) were studied by the mycelial growth rate method,in order to provide reference for the green control of soft rot disease of ‘Hongyang’ kiwifruit.The results indicated that higher concentrations of S.aromaticum ethanol extract resulted in more pronounced inhibitory effects on the hyphal growth of these three tested pathogens.At the concentration of the 25.000 mg·mL-1 of S.aromaticum ethanol extract，the mycelial growth inhibition rates for A.alternata，Diaporthe sp.，and Phomopsis sp.were 72.20%，71.26% and 66.74%，respectively.When the extract concentration increased to 50.000 mg·mL-1，the growth of all three pathogens was completely inhibited.The EC50 values for Diaporthe sp.，A.alternata and Phomopsis sp.were found to be 14.74，15.50 mg·mL-1and 30.97 mg·mL-1，respectively.In addition，the results indicated that Diaporthe sp.exhibited the highest pathogenicity，followed by Phomopsis sp.and A.alternata.Notably，the indoor control efficacy of S.aromaticum extracts demonstrated a stronger inhibitory effect on A.alternata (88.62%) compared to Phomopsis sp.(32.54%) and Diaporthe sp.(28.89%)，which was contrary to their pathogenicity rankings.

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Last Update: 2024-12-03