• 제목/요약/키워드: Antifungal activities

검색결과 634건 처리시간 0.023초

식물오일과 그 성분들의 살균활성 (Phytopathogenic Activities of Essential Oils and Their Main Compounds)

  • 최원식;김관영;장도연;엄대용;김태준;정봉진
    • 농약과학회지
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    • 제10권3호
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    • pp.201-209
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    • 2006
  • 43종의 식물오일들을 대상으로 잿빛곰팡이병균 (Botrytis cinerea) 외 9종의 식물병원균에 대한 살균 효과로 이들의 생리활성 검증을 실시하였다. 이 중 thyme 오일이 잿빛곰팡이병균(Botrytis cinerea), 잎집무늬 마름병균(Rhizoctonia solani), 고추역병균(Phytophthora capsici), 고추탄저병균(Glomerella cingulate), 사과점무늬 낙엽병균(Alternaria mali)과 벼도열병균(Magnaporthe grisea)에서 광범위하게 살균효과를 나타내었다. Thyme 오일의 주성분을 GC/MS로 분석한 결과 thymol, carvacrol, borneol, linalool과 p-cymene임을 확인하였다. 이 중 thymol과 carvacrol이 높은 살균활성을 나타내었다. 한편, 식물병원균에 대한 살균활성관련 작용기작을 실험한 결과, 잿빛곰팡이병균(Botrytis cinerea), 잎집무늬마름병균(Rhizoctonia solani)과 사과점무늬낙엽병균(Alternaria mali)의 포자발아를 억제하는 것으로 나타났다. Thymol과 carvacrol은 in vivo에서 잿빛곰팡이병균(Botrytis cinerea)과 잎집무늬마름병균(Rhizoctonia solani)에 대하여 높은 예방효과를 나타내었으며, thymol, carvacrol의 유사구조를 갖는 alkylphenol계 화합물들도 살균활성이 있음을 검정하였다.

Antifungal Activity and Inhibitory Modes of Volatile Vapours of Essential Oils

  • Chee, Hee-Youn;Lee, Eun-Hee
    • Mycobiology
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    • 제32권2호
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    • pp.102-104
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    • 2004
  • Antifungal activities of volatile vapours of essential oils were investigated. Volatile vapours of test essential oils except Cedar-wood and Pachouri showed inhibitory activity against test fungi. Volatile vapours of Birch essential oils exhibited fungistatic activity against dermatophytic filamentous fungi while others did fungicidal activity. Spores of dermatophytic filamentous fungi are more susceptible to volatile vapours of essential oils than mycelia.

1-[(2-Phenyl-1,3-benzodioxol-2-yl)methyl]-1H-imidazole 유도체의 합성 및 항진균작용 (Synthesis and Antifungal Activities of 1-[(2-Phenyl-1,3-benzodioxol-2-yl)methyl]-1H-imidazole Derivatives)

  • 서정진;김재규;강희일
    • 약학회지
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    • 제35권4호
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    • pp.308-313
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    • 1991
  • The synthesis of 1-[(2-phenyl-1, 3-benzodioxol-2-yl)methyl]-1H-imidazole derivatives is described starting with 2-bromoacetophenones and catechols. 1-[(2-Phenyl-1, 3-benzodioxol-2-yl)methyl]-1H-imidazole (9-$_{12}$) showed potent broad-spectrum activity, not only against Candida species but also Cr. neofortnans, S. cerevisiae and T. mentagrophytes.

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Antifungal Activity of Clove Essential Oil and its Volatile Vapour Against Dermatophytic Fungi

  • Chee, Hee-Youn;Lee, Min-Hee
    • Mycobiology
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    • 제35권4호
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    • pp.241-243
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    • 2007
  • Antifungal activities of clove essential oil and its volatile vapour against dermatophytic fungi including Candida albicans, Epidermophyton floccosum. Microsporum audouinii, Trichophyton mentagrophytes, and Trichophyton rubrum were investigated. Both clove essential oil and its volatile vapour strongly inhibit spore germination and mycelial growth of the dermatophytic fungi tested. The volatile vapour of clove essential oil showed fungistatic activity whereas direct application of clove essential oil showed fungicidal activity.

Biologically active compounds from natural and marine natural organisms with antituberculosis, antimalarial, leishmaniasis, trypanosomiasis, anthelmintic, antibacterial, antifungal, antiprotozoal, and antiviral activities

  • Asif, Mohammad
    • 셀메드
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    • 제6권4호
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    • pp.22.1-22.19
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    • 2016
  • The biologically active compounds derived from different natural organisms such as animals, plants, and microorganisms like algae, fungi, bacteria and merine organisms. These natural compounds possess diverse biological activities like anthelmintic, antibacterial, antifungal, antimalarial, antiprotozoal, antituberculosis, and antiviral activities. These biological active compounds were acted by variety of molecular targets and thus may potentially contribute to several pharmacological classes. The synthesis of natural products and their analogues provides effect of structural modifications on the parent compounds which may be useful in the discovery of potential new drug molecules with different biological activities. Natural organisms have developed complex chemical defense systems by repelling or killing predators, such as insects, microorganisms, animals etc. These defense systems have the ability to produce large numbers of diverse compounds which can be used as new drugs. Thus, research on natural products for novel therapeutic agents with broad spectrum activities and will continue to provide important new drug molecules.

국내산 침엽수 추출물의 Trichoderma spp.에 대한 항균활성 (Antifungal activity of extracts from Chamaecyparis obtusa and Pseudotsuga menziesii against Trichoderma spp.)

  • 정지영;김지운;김영숙;박한민;이병현;최명석;양재경
    • 농업생명과학연구
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    • 제45권4호
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    • pp.1-11
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    • 2011
  • 본 연구는 국내산 침엽수로부터 천연 항균화합물 개발을 목표로 미송 및 편백으로부터 추출물을 확보하여 푸른곰팡이병의 원인균인 Trichoderma spp. 5종을 대상으로 항균활성을 테스트하고 GC/MS를 이용하여 항균화합물을 탐색하였다. 미송 추출물은 Trichoderma spp.에 대해 1,000 ppm에서 저해 활성을 나타냈으며, 4,000 pp에서는 T. viride>T. harzianum>T. aggressivum 순으로 70.1, 67.3, 64.7%의 높은 항균활성을 나타냈다. 편백 추출물도 1,000 ppm에서 항균활성을 나타냈고 4,000 ppm에서 T. viride>T. harzianum>T. aggressivum 순으로 63.2, 59.3, 59.1%의 높은 항균활성을 나타냈다. 그러나 1,000 ppm의 미송추출물과 1,000 ppm의 편백추출물을 각각 9:1, 8:2, 6:4, 2:8 (w/w) 비율의 혼합제제로 만들어 Trichoderma spp.에 처리하였을 때 미송추출물 1,000 ppm 및 편백추출물 1,000 ppm 각각의 단일추출물보다 낮은 항균활성을 나타냈다. Trichoderma spp. 5종에 대해 높은 항균활성을 나타내는 미송추출물에서는 2-Isopropoxy-ethylamine 46.5%, epifluorohydrin 8.6%, trans-2,3-Di-methyloxirane 7.6%, (IR)-(-)-Myrtenal 6.0%, 2-Methoxy-4-Vinylphenol 3.9%, benzaldehyde 2.8%가 함유되어 있었고, 편백추출물에서는 ${\alpha}$-Terpinenyl acetate 14.9%, Sabinene 10.9%, dl-Limonene 9.6%, ${\alpha}$-Terpinolene 7.5%, ${\alpha}$-Pinene 7.1%가 함유된 것이 확인되었다.

Antifungal Activity of Bioactive Fractions on the Dermatophytic Fungus

  • Kim Myung Ju;Na Young Soon;Chai Kyu Yun;Oh Hyun Ju;Baek Seung Hwa
    • 동의생리병리학회지
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    • 제18권3호
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    • pp.914-918
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    • 2004
  • Cytotoxic and antifungal activities were strongly shown by Fr. 4 (218 mg, P388 IC/sub 50/ 652 ng/ml at 75 μg/disc, IC50 834 ng/ml at 30 μg/disc and HM 8). The subfraction 4 - 3 that showed the most activity was cytotoxic to murine leukaemia cells ATCC CCl 46 P388D1, (44.0 mg, P388 IC50 302 ng/ml at 30 μg/disc).

점액세균 Myxococcus sp. JW154로 부터 항균물질의 분리 및 식물병원균에 대한 in vivo 활성 (Isolation and in vivo Activities of Antifungal Compounds from Myxococcus sp. JW154 (Myxobacteria).)

  • 안종웅;김병섭
    • 한국미생물·생명공학회지
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    • 제30권2호
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    • pp.162-166
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    • 2002
  • 제주도 서귀포의 해변에서 채집한 해양퇴적물로부터 Myxococcus속의 점액세균 JW154를 분리하여 그 대사산물로부터 강한 항균활성을 나타내는 두 개의 bithiazole계 화합물을 분리하고 각종 기기분석을 통하여 구조를 확인한 바, 이들은 각각 KR025와 melithiazole F로 보고된 화합물임을 밝혔다. 유묘 검정법으로 조사된 이 화합물의 주요 식물병원균에 대한 in vivo 항균활성은 토마토 역병과 밀 녹병 및 보리 흰가루병에 대해 높게 나타났는데, 20$\mu\textrm{g}$/m1 수준으로 처리하였을 때 80% 이상의 높은 방제가를 보였다.

벼 근권 유래 질소고정세균의 특성과 항진균 활성 (Characterization of Diazotrophs Isolated from Rice Rhizosphere and Their Antifungal Activities)

  • 정다은;이수진;설경조;박유미;김사열
    • 한국미생물·생명공학회지
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    • 제34권2호
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    • pp.180-184
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    • 2006
  • Nineteen nitrogen-fixing bacteria were isolated from rice roots cultivated in the southern part of the Korean peninsula. Among them, three isolates - Stenotrophomonas sp. KNUC89, Pseudomonas sp. KNUC116, and Delftia sp. KNUC133 - showed antifungal activities against phytopathogenic fungi Rhizoctonia solani and Fusarium oxysporum. Besides they could produce auxin and siderophores.

Synthesis and Antifungal Activities of Some Aryl (3-Methyl-Benzofuran-2-yl) Ketoximes

  • Benkli, Kadriye;Gundogdu-Karaburun, Nalan;Karaburun, Ahmet-Cagrl;Ucucu, Umit;Demirayak, Seref;Kiraz, Nuri
    • Archives of Pharmacal Research
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    • 제26권3호
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    • pp.202-206
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    • 2003
  • In this study, some aryl (3-methyl-benzofuran-2-yl) ketoximes and their ethers and esters were synthesised. The structure elucidation of the compounds was performed by IR, $^1H-NMR$, MASS spectroscopy and elemental analyses. Antifungal activities of the compounds were examined and moderate activity was obtained.