Antimicrobial peptides (So-D1-7) were isolated from a crude cell wall preparation from spinach leaves (Spinacia oleracea cv. Matador) and, judged from their amino acid sequences, six of them (So-D2-7) represented a novel structural subfamily of plant defensins (group IV). Group-IV defensins were also functionally distinct from those of groups I-III. They were active at concentrations < 20 micro...

Abstract Fusarium is one of the most important genera phytopathogenic fungi, causing potato wilt in field and tuber dry rot during storage. The objectives this study were to identify species associated with both diseases different growing regions Algeria, assess their pathogenicity. Among 152 isolates collected from symptomatic plants tubers provinces 13 Neocosmospora identified. these three is...

A common consequence of using agricultural fungicides is the development of resistance by fungal pathogens, which undermines reliability of fungicidal effectiveness. A potentially new strategy to aid in overcoming or minimizing this problem is enhancement of pathogen sensitivity to fungicides, or "chemosensitization." Chemosensitization can be accomplished by combining a commercial fungicide wi...

Yield losses of bread wheat due to crown rot can be more severe when drought conditions occur during the grain-filling period. Root architecture characteristics are important for soil exploration and below-ground resource acquisition essential adaptation water-limited environments. Traits such as root angle, length density have been strongly associated with efficiency contribute yield stability...