Antifungal activity of eucalyptus-derived phenolics against postharvest pathogens of kiwifruits

	Antifungal activity of eucalyptus-derived phenolics against postharvest pathogens of kiwifruits
	Oh, Soon-Ok 2,3; Kim, Jung A.3; Jeon, Hae-Sook 3; Park, Jong Cheol 4; Koh, Young Jin 1; Hur, Hyun 5; Hur, Jae-Seoun 3
通讯作者	jshur1@sunchon.ac.kr
	2008-09-01
发表期刊	PLANT PATHOLOGY JOURNAL
ISSN	1598-2254
卷号	24 期号:3 页码:322-327
摘要	Antifungal activities of natural substrances from Eucalyptus darlympleana, E. globules, E. gunnii and E. unigera were evaluated against postharvest pathogens of kiwifruits, Botrytis cinerea, Botryosphaeria dothidea, and Diaporthe actinidiae, to screen effective natural substances as an alternative to chemical fungicides. Methanol extract of the Eucalyptus trees showed strong antagonistic activity against the pathogenic fungi. Among them, E. unigera and E. darlympleana effectively inhibited mycelial growth of the pathogens. For chemical identification of the antifungal substances, the methanol extract of E. darlympleana leaves was successively partitioned with CH(2)Cl(2), EtOAc, n-BuOH and H(2)O. Among the fractions, CH,Cl, and n-BuOH showed strong inhibitory activity of mycelial growth of the fungi. Five compounds were isolated from EtOAc and n-BuOH fractions subjected to SiO(2) column chromatography. Two phenolic compounds (gallic acid and 3,4-dihydroxy-benzoic acid) and three flavonoid compounds (quercetin, quercetin-3-O-alpha-L-rhamnoside, quercetin-3-O-beta-D-glucoside) were identified by (1)H-NMR and (13)C-NMR spectroscopy. Among them, only gallic acid was found to be effective in mycelial growth and spore germination of B. cinerea at relatively high concentrations. The results suggest that gallic acid can be a safer and more acceptable alternative to current synthetic fungicides controlling soft rot decay of kiwifruit during postharvest storage.
关键词	Biofungicide Bioresource Natural Substances Postharvest Storage Soft Rot Decay
学科领域	Agriculture, Multidisciplinary ; Plant Sciences
收录类别	SCI
语种	英语
WOS记录号	WOS:000258905900010
引用统计
文献类型	期刊论文
条目标识符	http://ir.kib.ac.cn/handle/151853/2677
专题	中国科学院东亚植物多样性与生物地理学重点实验室
作者单位	1.Sunchon Natl Univ, Dept Plant Med, Sunchon 540742, South Korea 2.Chinese Acad Sci, Kunming Inst Bot, Kunming 650204, Yunnan, Peoples R China 3.Sunchon Natl Univ, Korean Lichen Res Inst, Sunchon 540742, South Korea 4.Sunchon Natl Univ, Dept Oriental Med Resources, Sunchon 540742, South Korea 5.Dongguk Univ, Dept Biol, Seoul 100715, South Korea
推荐引用方式 GB/T 7714	Oh, Soon-Ok,Kim, Jung A.,Jeon, Hae-Sook,et al. Antifungal activity of eucalyptus-derived phenolics against postharvest pathogens of kiwifruits[J]. PLANT PATHOLOGY JOURNAL,2008,24(3):322-327.
APA	Oh, Soon-Ok.,Kim, Jung A..,Jeon, Hae-Sook.,Park, Jong Cheol.,Koh, Young Jin.,...&Hur, Jae-Seoun.(2008).Antifungal activity of eucalyptus-derived phenolics against postharvest pathogens of kiwifruits.PLANT PATHOLOGY JOURNAL,24(3),322-327.
MLA	Oh, Soon-Ok,et al."Antifungal activity of eucalyptus-derived phenolics against postharvest pathogens of kiwifruits".PLANT PATHOLOGY JOURNAL 24.3(2008):322-327.

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