Calcium (Ca2+) is a universal second messenger in all higher organisms and centrally involved in the launch of responses to environmental stimuli. Ca2+ signals in the cytosol are initiated by the activation of Ca2+ channels in the plasma membrane and/or in endomembranes. Yeast (Saccharomyces cerevisiae) contains a Ca2+-permeable channel of the TRP family, TRPY1, which is localized in the vacuol...

The previously compiled list of species powdery mildew fungi Ukraine was published more than 30 years ago. That included 108 belonging to 12 genera. However, over the past three decades, numerous changes have been made in system former order Erysiphales, particular, its generic composition; moreover, dozens new described. At same time, many were introduced Europe, including Ukraine, from East A...

We have previously reported that disruption of a maize root-expressed 9-lipoxygenase (9-LOX) gene, ZmLOX3, results in dramatic increase in resistance to diverse leaf and stalk pathogens. Despite evident economic significance of these findings, the mechanism behind this increased resistance remained elusive. In this study, we found that increased resistance of the lox3-4 mutants is due to consti...

Abstract Recent studies have reported that plant-parasitic nematodes facilitate their infection by suppressing plant immunity via effectors, but the inhibitory mechanisms remain poorly understood. This study found a novel effector MgMO289 is exclusively expressed in dorsal esophageal gland of Meloidogyne graminicola and up-regulated at parasitic third-/fourth-stage juveniles. In planta silencin...

Meiosis in the haploid plant-pathogenic fungus Mycosphaerella graminicola results in eight ascospores due to a mitotic division following the two meiotic divisions. The transient diploid phase allows for recombination among homologous chromosomes. However, some chromosomes of M. graminicola lack homologs and do not pair during meiosis. Because these chromosomes are not present universally in th...

1 Laboratoire de génétique moléculaire, immunologie et biotechnologie Faculté des Sciences de Tunis, Tunisie. 2 Laboratoire de grande culture et de protection des végétaux, Institut National de Recherche Agronomique de Tunis, Tunisie. 3 Département de Phytologie, Pavillon Charles-Eugene-Marchand, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, Québec, Canada. 4 Int...

An F(1) mapping population of the septoria tritici blotch pathogen of wheat, Mycosphaerella graminicola, was generated by crossing the two Dutch field isolates IPO323 and IPO94269. AFLP and RAPD marker data sets were combined to produce a high-density genetic linkage map. The final map contained 223 AFLP and 57 RAPD markers, plus the biological traits mating type and avirulence, in 23 linkage g...

Efficient, low-cost enzymatic hydrolysis of lignocellulosic residues is essential for cost-effective production of bioethanol. The production of β-glucosidase, β-xylosidase and xylanase by Colletotrichum graminicola was optimized using Response Surface Methodology (RSM). Maximal production occurred in wheat bran. Sugarcane trash, peanut hulls and corncob enhanced β-glucosidase, β-xylosidase and...