نتایج جستجو برای: leaf spotting pathogen

تعداد نتایج: 153226  

2016
Sung-Il Kim Jong Tae Song Jin-Yong Jeong Hak Soo Seo

Rice leaf blight, which is caused by the bacterial pathogen Xanthomonas oryzae pv. oryzae (Xoo), results in huge losses in grain yield. Here, we show that Xoo-induced rice leaf blight is effectively controlled by niclosamide, an oral antihelminthic drug and molluscicide, which also functions as an anti-tumor agent. Niclosamide directly inhibited the growth of the three Xoo strains PXO99, 10208 ...

ژورنال: علوم آب و خاک 2003
سیدمحسن تقوی, , کاووس کشاورز, ,

During the period from 1997 to 1998, samples of wheat leaves were collected from different wheat farms in Fars and Kohgiluyeh & Boyrahmad provinces to identify the causal agent of wheat leaf blight. On the basis of LOPAT tests and production of fluorescent pigment on KB medium, 181 bacterial isolates were recovered from the samples. Based on biochemical, physiological and pathogenicity tests, t...

2005
Rebecca A. Melanson

Pecan bacterial leaf scorch (PBLS) and the pathogen Xylella fastidiosa were identified in 20 pecan cultivars observed in Louisiana commercial orchards over a twoyear period. The disease occurred in the majority of orchards observed and was distributed throughout the pecan growing areas of the state. Leaf scorch was most prevalent in the Cape Fear cultivar. A few other cultivars sometimes exhibi...

2013
James Kolmer

Rusts are important pathogens of angiosperms and gymnosperms including cereal crops and forest trees. With respect to cereals, rust fungi are among the most important pathogens. Cereal rusts are heteroecious and macrocyclic requiring two taxonomically unrelated hosts to complete a five spore stage life cycle. Cereal rust fungi are highly variable for virulence and molecular polymorphism. Leaf r...

Journal: :Plant physiology 1984
E Chalutz A K Mattoo T Solomos J D Anderson

Cellulysin-induced ethylene production in tobacco (Nicotiana tabacum L.) leaf discs was enhanced several-fold by prior exposure of the leaf tissue to ethylene. This enhancement in the response of the tissue to Cellulysin increased rapidly during 4 and 8 hours of pretreatment with ethylene and resulted from greater conversion of methionine to ethylene. On treatment with Cellulysin, the content o...

Journal: :Journal of plant science and phytopathology 2021

Strobilurin is a group of natural products and their synthetic analogs have been widely used to control prevent fungal diseases. Strobilurins were firstly isolated in 1977 from the mycelium Strobilurus tenacellus, saprobic Basidiomycete fungus causing wood-rotting on forest trees. This pesticides was designed manage pathogens classes such as Ascomycetes, Basidiomycetes, Oomycetes. Also, commerc...

سیدمحسن تقوی, , کاووس کشاورز, ,

During the period from 1997 to 1998, samples of wheat leaves were collected from different wheat farms in Fars and Kohgiluyeh & Boyrahmad provinces to identify the causal agent of wheat leaf blight. On the basis of LOPAT tests and production of fluorescent pigment on KB medium, 181 bacterial isolates were recovered from the samples. Based on biochemical, physiological and pathogenicity tests, t...

Journal: :Jurnal Sistem Informasi dan Komputer 2023

Areca nut is a plant that cultivated by the people of Papua as means livelihood. has many benefits, starting from fruit, leaves, roots, and economic value betel also quite good. The problem often encountered areca cultivators damage caused diseases, causing losses both in terms yield control. In this study, expert system for diagnosing diseases uses Certainty Factor method, essence method to me...

Journal: :American journal of obstetrics and gynecology 2014
Ryan J Heitmann Kelly L Langan Raywin R Huang Gregory E Chow Richard O Burney

OBJECTIVE The purpose of this study was to assess the prevalence of endometriosis in women with premenstrual spotting and to determine the predictive value of this symptom in the diagnosis of endometriosis. STUDY DESIGN We conducted a retrospective cohort study of 80 consecutive women who presented to the infertility clinic for evaluation and who subsequently underwent laparoscopic assessment...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید