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Pathogenicity of Bacillus Strains to Cotton Seedlings and Their Effects on Some Biochemical Components of the Infected Seedlings
Aly A. Aly, Omima M. El-Mahdy, Marian M. Habeb, Abeer Elhakem, Amal A. Asran, Maryan M. Youssef, Heba I. Mohamed, Rania S. Hanafy 한국식물병리학회 The Plant Pathology Journal 11 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 2호 3 91-101 (11 pages)
Pathogenicity of eight Bacillus strains to seedlings of four cotton cultivars was evaluated under greenhouse conditions. Each of the tested cultivars was individually treated with powdered inoculum of each bacterial strain. Untreated seeds were planted as control treatments in autoclaved soil. Effects of the tested strains on levels and activities of some biochemical components of the infected seedlings were also assayed. The biochemical components included total soluble sugars, total soluble... -
Evaluation of Antimicrobial Properties of Lichen Substances against Plant Pathogens
Jaycee A. Paguirigan, Rundong Liu, Seong Mi Im, Jae-Seoun Hur, Wonyong Kim 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2022, 38권 1호 3 25-32 (8 pages)
Plant pathogens pose major threats on agriculture and horticulture, causing significant economic loss worldwide. Due to the continuous and excessive use of synthetic pesticides, emergence of pesticide resistant pathogens has become more frequent. Thus, there is a growing needs for environmentally-friendly and selective antimicrobial agents with a novel mode of action, which may be used in combination with conventional pesticides to delay development of pesticide resistance. In this study, we... -
A Genome-Wide Analysis of Antibiotic Producing Genes in Streptomyces globisporus SP6C4
Da-Ran Kim, Youn-Sig Kwak 한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 4호 8 389-395 (7 pages)
Soil is the major source of plant-associated microbes. Several fungal and bacterial species live within plant tissues. Actinomycetes are well known for producing a variety of antibiotics, and they contribute to improving plant health. In our previous report, Streptomyces glo- bisporus SP6C4 colonized plant tissues and was able to move to other tissues from the initially colonized ones. This strain has excellent antifungal and antibacterial activities and provides a suppressive effect upon... -
Lysimachia foenum-graecum Herba Extract, a Novel Biopesticide, Inhibits ABC Transporter Genes and Mycelial Growth of Magnaporthe oryzae
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2016, 32권 1호 2 8-15 (8 pages)
To identify a novel biopesticide controlling rice blast disease caused by Magnaporthe oryzae, 700 plant extracts were evaluated for their inhibitory effects on mycelial growth of M. oryzae. The L. foenum-graecum Herba extract showed the lowest inhibition concentration (IC50) of 39.28 μg/ml, which is lower than the IC50 of blasticidin S (63.06 μg/ml), a conventional fungicide for rice blast disease. When treatments were combined, the IC50 of blasticidin S was dramatically reduced... -
Research Articles : Purification and Structural Analysis of Surfactin Produced by Endophytic Bacillus subtilis EBS05 and its Antagonistic Activity Against Rhizoctonia cerealis
한국식물병리학회 The Plant Pathology Journal 7 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 4호 6 342-348 (7 pages)
fludioxonil. The fermentation broth and bacteria-free filter ability to suppress WSED was not significantly different, suggesting that an active secreted substance played a major role in controlling WSED. Separation and purification of the active compounds was carried out by serial processes, including hydrochloric acid (pH 2.0) treatment, methanol extraction and Sephadex LH-20 column chromatography, silica gel column chromatography and reverse-phase high-pressure liquid chromatography (HPLC),... -
Biocontrol with Myxococcus sp. KYC 1126 Against Anthracnose in Hot Pepper
한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2011, 27권 2호 8 156-163 (8 pages)
Antifungal activity of three Myxococcus spp., KYC 1126, 1136, and 2001, was tested in vitro against three phytopathogenic fungi (Botrytis cinerea, Colletotrichum acutatum, and Pyricularia grisea). Spore germination and mycelial growth of the three pathogenic fungi were completely inhibited by bioactive substances from a myxobacterium KYC 1126. In addition, the activity of KYC 1126 was fungicidal, but liquid culture filtrate of KYC 1126 did not affect protoplast reversion in C. acutatum. A... -
Control Efficacy of Phloretin Isolated from Apple Fruits Against Several Plant Diseases
한국식물병리학회 The Plant Pathology Journal 6 Pages
한국식물병리학회 The Plant Pathology Journal 2010, 26권 3호 13 280-285 (6 pages)
a searching natural antifungal compounds from plant sources, we found that the methanol extract (3,000 μg/ml) of Malus domestica fruits had potential of control against rice blast (Magnaporthe grisea) and tomato late blight (Phytophthora infestans). Under bioassay-guided purification, we isolated phloretin, a phenolic compound, with in vivo antifungal activity against M. grisea. By 1-day protective application of phloretin (500 μg/ml), the compound strongly inhibited the disease development of... -
Botrytis cinerea와 Colletotrichum acutatum에 항균활성을 갖는 점액세균 Sorangium cellulosum에 대한 아종 분류 및 길항 특성 연구
구태훈(Tae-Hoon Koo), 윤성철(Sung-Chul Yun) 한국식물병리학회 식물병연구 8 Pages
한국식물병리학회 식물병연구 2018, 24권 3호 5 213-220 (8 pages)
섬유소 분해 점액세균인 Sorangium cellulosum 균주들 중 Botrytis cinerea에 길항력을 갖는다고 보고한 4균주(Antagonistic to Botrytis, AB 계열)와 Colletotrichum acutatum에 길항력을 갖는다고 보고한 2균주(Antagonistic to Colletotrichum, AC 계열)를 5가지(A-E)의 S. cellulosum 아종(subspecies)으로 분류하였다. 분류 기준 유전자인 xynB1, bglA2, groEL1 세 유전자의 유전자 유무 및 염기서열 분석을 통해 AB 계열은 아종 C, AC 계열은 아종 D로 분류하였다. 또한, 배양추출물을 고효율 액체크로마토그래피(HPLC)로 분석한... -
The Power of Being Small: Nanosized Products for Agriculture
한국식물병리학회 식물병연구 2018, 24권 2호 2 99-112 (14 pages)
