Results 41 to 50 of about 7,980 (162)

The ABC Transporter MgAtr4 Is a Virulence Factor of Mycosphaerella graminicola that Affects Colonization of Substomatal Cavities in Wheat Leaves

open access: yesMolecular Plant-Microbe Interactions, 2003
The role in virulence of the ATP-binding cassette (ABC) transporters MgAtr1, MgAtr2, MgAtr3, MgAtr4, and MgAtr5 from Mycosphaerella graminicola was analyzed by gene disruption or replacement on seedlings of the susceptible wheat cultivar Obelisk ...
Ioannis Stergiopoulos   +2 more
doaj   +1 more source

Intermolecular Carbon–Carbon Naphthalene Coupling Involves a Radical Mechanism Driven by Cytochrome P450 in Alternaria alternata

open access: yesAngewandte Chemie International Edition, EarlyView.
1,8‐DHN is an important intermediate to form complex aromatic ring systems. Phenol‐coupling reactions are important for the dimerization of two molecules. Here, we show that a fungal cytochrome P450 enzyme catalyzes specific C─C bonds. ABSTRACT Dihydroxynaphthalene (DHN) derivatives are precursors of biologically important molecules, including melanin ...
Jia Gao   +8 more
wiley   +1 more source

Stomatal Closure, a Conserved Spore Concentration‐Dependent Response Mediated by Different Stb Genes to Avirulent Isolates of Zymoseptoria tritici

open access: yesPlant Pathology, Volume 75, Issue 4, July‐August 2026.
Inoculation with different avirulent Zymoseptoria tritici isolates induces stomatal closure in wheat lines carrying either the Stb9 or Stb16q resistance genes. The proportion of closed stomata was positively associated with inoculum concentration, consistent with increased Z. tritici penetration attempts through stomata.
Caroline Frey   +4 more
wiley   +1 more source

Population Structure of Mycosphaerella graminicola and Location of Genes for Resistance to the Pathogen: Recent Advances in Argentina

open access: yesInternational Journal of Agronomy, 2012
Leaf blotch of wheat (Septoria tritici Rob. ex Desm., teleomorph Mycosphaerella graminicola (Fückel) Schröt. in Cohn) causes significant losses in wheat.
María Rosa Simón   +4 more
doaj   +1 more source

Fungicide sensitivity of Mycosphaerella graminicola Tunisian isolates: the importance of drug transporter genes in the process of fungicide tolerance

open access: yesPhytopathologia Mediterranea, 2014
Seventeen Mycosphaerella graminicola isolates from Tunisia and two reference isolates from Europe (St-Q7-2 and IPO323) were examined for sensitivity to azoxystrobin and tebuconazole and for the importance of the drug transporter genes MgAtr3 (ABC ...
Lamia SOMAI-JEMMALI   +3 more
doaj   +1 more source

Phenotypic and genetic resistance to Septoria blotch disease in European wheat varieties

open access: yesThe Plant Genome, Volume 19, Issue 2, June 2026.
Abstract Zymoseptoria tritici, the causal agent of Septoria tritici blotch (STB), poses a critical threat to wheat (Triticum aestivum L.) production in temperate Europe, underscoring the need for durable genetic resistance. Here, we screened 151 winter wheat varieties at the seedling stage using a mixed inoculum of five virulent isolates.
Conor Copeland   +3 more
wiley   +1 more source

Specific Resistance Genes in Wheat Chinese Landrace ‘Wangshuibai’ against Two Iranian Mycosphaerella Graminicola Isolates [PDF]

open access: yes, 2010
Septoria tritici blotch, caused by the fungus Mycosphaerella graminicola, is currently the major foliar disease of wheat world-wide, and new sources of resistance and knowledge about the genetics of resistance are needed to improve breeding for ...
Pardis, M.E.   +8 more
core  

Septoria Tritici Blotch in Commercial Wheat Crops in England: What Determines Disease Severity?

open access: yesPlant Pathology, Volume 75, Issue 3, May–June 2026.
We analyse a long‐term data set to answer the question: what determines Septoria tritici blotch severity in commercial fields in England. ABSTRACT The severity of epidemics of Septoria tritici blotch (STB; caused by the fungus Zymoseptoria tritici) in winter wheat (Triticum aestivum) in England has been analysed using a long‐term data set arising from ...
Frank van den Bosch   +7 more
wiley   +1 more source

Genome structure and pathogenicity of the fungal wheat pathogen Mycosphaerella graminicola [PDF]

open access: yes, 2011
The phytopathogenic fungus Mycosphaerella graminicola (Fuckel) J. Schröt. in Cohn (asexual stage: Zymoseptoria tritici (Desm.) Quaedvlieg & Crous) causes septoria tritici leaf blotch (STB) in wheat and is one of the most important diseases of this crop ...
Ben M'Barek, S., M'Barek, S., Ben
core  

Genomics of Phytopathogenic Fungi and the Development of Bioinformatic Resources

open access: yesMolecular Plant-Microbe Interactions, 2002
Genomic resources available to researchers studying phytopathogenic fungi are limited. Here, we briefly review the genomic and bioinformatic resources available and the current status of fungal genomics.
Darren M. Soanes   +4 more
doaj   +1 more source

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