نتایج جستجو برای: Fusarium avenaceum

تعداد نتایج: 14426  

2011
Jenny Spång Elisabeth Fredlund Stefan Bertilsson

Fusarium is a type of mould capable of producing several diseases in cereals. Infection is a worldwide problem associated with yield losses and the accumulation of toxic secondary metabolites, mycotoxins, which are harmful to both humans and animals. F. graminearum, F. culmorum, F. avenaceum, F. poae, and F. tricinctum, including corresponding mycotoxins were quantified in wheat samples from 6 ...

Journal: :Phytopathology 2009
F A Nalim W H Elmer R J McGovern D M Geiser

Fusarium avenaceum is a globally distributed fungus commonly isolated from soil and a wide range of plants. Severe outbreaks of crown and stem rot of the flowering ornamental, lisianthus (Eustoma grandiflorum), have been attributed to F. avenaceum. We sequenced portions of the translation elongation factor 1-alpha (tef) and beta-tubulin (benA) protein coding genes as well as partial intergenic ...

2014
Zhiqing Guo Katharina Döll Raana Dastjerdi Petr Karlovsky Heinz-Wilhelm Dehne Boran Altincicek

Species of Fusarium have significant agro-economical and human health-related impact by infecting diverse crop plants and synthesizing diverse mycotoxins. Here, we investigated interactions of grain-feeding Tenebrio molitor larvae with four grain-colonizing Fusarium species on wheat kernels. Since numerous metabolites produced by Fusarium spp. are toxic to insects, we tested the hypothesis that...

Journal: :Applied and environmental microbiology 2002
A Logrieco A Rizzo R Ferracane A Ritieni

We evaluated Fusarium contamination and the levels of hexadepsipeptide mycotoxins in 13 wheat samples affected by head blight in Finland. Fusarium avenaceum was the dominant species (91%) isolated from all samples, but isolates of F. culmorum (4%), F. tricinctum (3%), and F. poae (2%) also were recovered. Beauvericin (0.64 to 3.5 microg/g) was detected in all 13 samples. Enniatin B (trace to 4....

2013
K.-M. Weltring W. Barz

Isoflavones, Fusarium, Methylation, Demethylation, 3'-Hydroxylation, Metabolism Several introductionary reactions of isoflavone metabolism by Fusarium fungi are reported. Fu­ sarium avenaceum hydroxylates formononetin in the 3'-position yielding 3',7-dihydroxy-4'-methoxyisoflavone (calycosin). 3'-Hydroxylation of biochanin A to 3/,5,7-trihydroxy-4/-methoxyisoflavone (pratensein) has been observ...

2016
H. Nagaraja G. Chennappa K. Poorna Chandra Rao G. Mahadev Prasad M. Y. Sreenivasa

A total of 198 cereal samples (53 maize, 54 sorghum, 37 paddy and 54 wheat) were collected from 11 districts of Karnataka to understand the percent infection (PI), relative density (RD) and their frequency (Fr) caused by Fusarium spp. All samples were screened by agar plating method using MGA 2.5 agar media and incubated at 25 ± 2 °C for 3-5 days. The study revealed the association of 10 differ...

Journal: :Arhiv za higijenu rada i toksikologiju 2012
Zdravka Sever Dario Ivić Tomislav Kos Tihomir Miličević

Several species of the genus Fusarium can cause apple fruit to rot while stored. Since Fusarium taxonomy is very complex and has constantly been revised and updated over the last years, the aim of this study was to identify Fusarium species from rotten apples, based on combined morphological characteristics and molecular data. We identified 32 Fusarium isolates from rotten apple fruit of cultiv...

2018
Adnan Šišić Jelena Baćanović-Šišić Petr Karlovsky Raphaël Wittwer Florian Walder Enio Campiglia Emanuele Radicetti Hanna Friberg Jörg Peter Baresel Maria R Finckh

Leguminous cover crop and living mulch species show not only great potential for providing multiple beneficial services to agro-ecosystems, but may also present pathological risks for other crops in rotations through shared pathogens, especially those of the genus Fusarium. Disease severity on roots of subterranean clover, white clover, winter and summer vetch grown as cover crop and living mul...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده کشاورزی 1393

بیماری پوسیدگی فوزاریومی ریشه و طبق پیاز در سراسر جهان وجود دارد و در چند سال اخیر در مناطق عمده کشت پیاز و به خصوص در استان آذربایجان شرقی گسترش زیادی پیدا کرده است و در حال حاضر مهمترین بیماری پیاز در ایران می‏باشد. بنابراین به منظور شناسایی و مطالعه بیماریزایی قارچ های فوزاریوم (fusarium spp.) عامل این بیماری در مناطق عمده کشت این محصول در دو استان آذربایجان شرقی و آذربایجان غربی در تابستان ...

2011
Tomasz Kulik Agnieszka Pszczółkowska Maciej Łojko

Fusarium avenaceum is a common soil saprophyte and plant pathogen of a variety of hosts worldwide. This pathogen is often involved in the crown rot and head blight of cereals that affects grain yield and quality. F. avenaceum contaminates grain with enniatins more than any species, and they are often detected at the highest prevalence among fusarial toxins in certain geographic areas. We studie...

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