نتایج جستجو برای: کلیدواژه sclerotinia sclerotiorum

تعداد نتایج: 5459  

2013
Periasamy Chitrampalam Patrik Inderbitzin Karunakaran Maruthachalam Bo-Ming Wu Krishna V. Subbarao

Sclerotinia sclerotiorum is a fungal plant pathogen and the causal agent of lettuce drop, an economically important disease of California lettuce. The structure of the S. sclerotiorum mating type locus MAT has previously been reported and consists of two idiomorphs that are fused end-to-end as in other homothallics. We investigated the diversity of S. sclerotiorum MAT using a total of 283 isola...

Journal: :Journal of applied microbiology 2006
M A Rodríguez G Cabrera A Godeas

AIMS To evaluate the antagonistic activity of Fusarium oxysporum nonpathogenic fungal strain S6 against the phytopathogenic fungus Sclerotinia sclerotiorum and to identify the antifungal compounds involved. METHODS AND RESULTS The antagonistic activity of Fusarium oxysporum strain S6 was determined in vitro by dual cultures. The metabolite responsible for the activity was isolated by chromato...

2017
Xiping Sun Ying Zhao Jichun Jia Jiatao Xie Jiasen Cheng Huiquan Liu Daohong Jiang Yanping Fu

Coniothyrium minitans is an important mycoparasite of Sclerotinia sclerotiorum. In addition, it also produces small amounts of antifungal substances. ZS-1TN1812, an abnormal mutant, was originally screened from a T-DNA insertional library. This mutant showed abnormal growth phenotype and could significantly inhibit the growth of S. sclerotiorum when dual-cultured on a PDA plate. When spraying t...

Journal: :به نژادی نهال و بذر 0
رقیه همتی r. hemati college of agriculture, university of zanjan, zanjan, iran.دانشکده کشاورزی، دانشگاه زنجان مریم مهدیخانی m. mehdikhani سیامک رحمانپور s. rahmanpour

sclerotinia stem rot (white stem rot), an important fungal disease, which is caused by sclerotinia sclerotiorum, is one of the serious diseases of various plants such as canola. use of resistant cultivars is an effective method to control the disease. a greenhouse experiment based on cotyledon inoculation using mycelial suspension of two different isolates of s. sclerotiorum was conducted to ev...

ژورنال: :فصلنامه تحقیقات بیماریهای گیاهی 2013
سمانه تیموری کامران رهنما

استفاده از اسانس های گیاهی به عنوان عوامل ضدمیکروبی در چند سال اخیر افزایش یافته است. در این بررسی فعالیت ضد قارچی اسانس های نعناع (mentha piperita)، رازیانه (foeniculum vulgare) و آویشن (thymus vulgaris) روی قارچ sclerotinia sclerotiorum در شرایط آزمایشگاه به روش اختلاط اسانس با محیط کشت pda در 5 غلظت مورد مطالعه قرار گرفت. نتایج مشخص کرد که اسانس نعناع تأثیر کافی بر روی رشد میسلیوم قارچ نداشت...

2017
Mark Derbyshire Matthew Denton-Giles Dwayne Hegedus Shirin Seifbarghy Jeffrey Rollins Jan van Kan Michael F. Seidl Luigi Faino Malick Mbengue Olivier Navaud Sylvain Raffaele Kim Hammond-Kosack Stephanie Heard Richard Oliver

Sclerotinia sclerotiorum is a phytopathogenic fungus with over 400 hosts including numerous economically important cultivated species. This contrasts many economically destructive pathogens that only exhibit a single or very few hosts. Many plant pathogens exhibit a “two-speed” genome. So described because their genomes contain alternating gene rich, repeat sparse and gene poor, repeat-rich reg...

2018
Fei Liu Xiaoxia Li Meirong Wang Jing Wen Bin Yi Jinxiong Shen Chaozhi Ma Tingdong Fu Jinxing Tu

WRKY transcription factors are known to participate in the defence responses of higher plants. However, little is known about the roles of such proteins, especially regarding their functions in the resistance of oilseed rape (Brassica napus) to Sclerotinia sclerotiorum, a necrotrophic fungal pathogen that causes stem rot. In this study, we identified BnWRKY33 as a S. sclerotiorum-responsive gen...

Journal: :Acta agraria Debreceniensis 2022

Sclerotinia sclerotiorum, which causes white mold, is a widespread pathogen. In 2020, new host plant of this fungus, the watercress (Nasturtium officinale) was identified in Hungary an aquaponic system. During cultivation S. sclerotiorum detected on plant, fungus caused 30% yield loss. Fungicides should not be used against fungi systems. Non-chemical methods integrated pest management used. The...

2009
Rafaeli Rocha Daniela Eleutério da Luz Cibelle Engels Sônia Alvim Veiga Pileggi David de Souza Jaccoud Filho Rodrigo Rodrigues Matiello Marcos Pileggi

Biological control consists of using one organism to attack another that may cause economic damage to crops. Integrated Pest Management (IPM) is a very common strategy. The white mold produced by Sclerotinia sclerotiorum (Lib.) causes considerable damage to bean crops. This fungus is a soil inhabitant, the symptoms of which are characterized by water-soaked lesions covered by a white cottony fu...

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