In an effort to design a bioassay to screen for biocontrol pathogens and their toxins, procedures were developed to produce calli of yellow starthistle (YST), Centaurea solstitialis (Asteraceae), on solid and liquid media. Three Murashige and Skoog (MS) media with different hormone additives were compared for their effects on the growth of the YST calli. The most effective medium was made of MS...

Reproductive mode can impact population genetic dynamics and evolutionary landscape of plant pathogens as well as on disease epidemiology and management. In this study, we monitored the spatial dynamics and mating type idiomorphs in ~700 Alternaria alternata isolates sampled from the main potato production areas in China to infer the mating system of potato early blight. Consistent with the exp...

Crofton weed, Ageratina adenophora (Sprengel) R. King and H. Robinson, originally from Central America, was introduced into China in the 1940s. The weed spreads rapidly and is seriously damaging grasslands and hindering livestock production in southwestern China. To tackle the weed problem and allow the sustainable use of pastures, an integrated strategy, based on biological control and habitat...

Phytopathogenic aggressiveness is the ability of a fungus to reproduce in tissues host plants, which manifested different growth rates mycelium, intensity spore formation, viability fungal spores, duration development cycle and its resistance extreme conditions. Varieties hybrids crops have significant effect on changing phytopathogenic micromycetes. Therefore, aim study was determine Alternari...

Bacillus spp. are well known to protect plants from seed or soil-borne pathogens by the synthesis of various metabolites with antimicrobial activity, such as hy?drolytic enzymes and antibiotics. This study aimed select most effective a group ten antagonistic strains antifungal activity assay. were primarily isolated soil identified B. safensis, pumilus subtilis 16S rDNA sequencing. The four ana...

Strategies based on halo- and thermostable enzymes are promising attractive for biotechnological applications. Three fungal isolates, namely Aspergillus flavus, Cladosporium cladosporioides, Alternaria alternata, were subjected to chitinase production using a medium with different concentrations of NaCl up 10%. C. cladosporioides was found be the main producer at high concentration NaCl; theref...

Background: There is evidence to demonstrate an association between fungal sensitization and asthma. Several studies have shown that saprophytic fungi such as Alternaria, Penicillium and Aspergillus species are the most prevalent fungal allergens worldwide. The main purpose of this study was to compare Alternaria alternata, Penicillium ci...