نتایج جستجو برای: bipolaris

تعداد نتایج: 674  

Journal: :Journal of Plant Diseases and Protection 2021

The high cost of chemical pesticides and their negative impact on the environment prompted search for natural from plants. objective our study was to control rice seed pathogenic fungi bacteria using aqueous extract essential oil Tithonia diversifolia leaves. We obtained oil, respectively, by maceration hydrodistillation; antimicrobial activities were determined in vitro a solid medium food poi...

Journal: :journal of crop protection 2015
somayeh nazari mohammad javan-nikkhah khalil-berdi fotouhifar vahid khosravi alireza alizadeh

ninety one monoconidial bipolaris isolates were obtained from lesions on different parts of rice in different locations of mazandaran province during the summer of 2009. bipolaris species were identified using morphological features such as color and shape of colony and color and size of conidia and conidiophores. the isolates were separated into two species; 85 (93.4%) isolates belonged to bip...

2018
Sabiha Sultana Sanjoy Kumar Adhikary Md. Monirul Islam Sorder Mohammad Mahbubur Rahman

Leaf blotch of wheat caused by Bipolaris sorokiniana is a major constraint to wheat production, causing significant yield reduction resulting in severe economic impact. The present study characterizes to determine and compare pathogenic variability exist/not based on components of leaf blotch disease development and level of aggressiveness due to agroclimatic condition of B. sorokiniana in whea...

2006

Spot blotch is caused by Helminthosporium sativum or H. sorokinianum = Drechslera sorokiniana (Bipolaris sorokiniana). The disease is widespread in Illinois and is believed to lower potential barley yields by 1 to 3 percent; also, the bushel weight. The causal fungus affects all parts of the plant and produces a variety of symptoms, from a seedling blight and root rot to “Black point” of the ke...

Journal: :Indian Journal of Pathology and Microbiology 2011

k. Pakshir M. Eghtedari,

An asymptomatic fungal cyst of a conjunctival infection was found and removed by biopsy in a young shepherdess. Histopathologic evaluations of the excised tissue specimen from the lesion of the conjunctiva demonstrated an epithelium lined cavity containing a tangled mycelial mass that was surrounded by inflammatory cells and the fungus was identified as Bipolaris spicifera. It is concluded that...

Journal: :Bioscience, biotechnology, and biochemistry 2002
Yoichiro Nihashi Chi-Hwan Lim Chihiro Tanaka Hisashi Miyagawa Tamio Ueno

The structure of siccanol, a phytotoxic sesterterpene of fungal origin, was analyzed after chemical conversion by NMR spectroscopy. Siccanol was found to be an epimer of terpestacin that has been isolated from Arthrinium sp., and was thus renamed 11-epiterpestacin. Its stereochemistry was also identical with that of fusaproliferin, a structurally related mycotoxin from Fusarium proliferatum. Th...

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