In recent years, diverse physiological functions of various sugars are the subject of investigations. Their roles in signal transduction in plant responses to adverse biotic and abiotic stress conditions have become apparent, and growing scientific evidence has indicated that disaccharides like sucrose and trehalose mediate plant defense responses in similar way as those induced by elicitors ag...

Lettuce downy mildew, caused by the oomycete Bremia lactucae Regel, is a major threat to lettuce production worldwide. Lettuce downy mildew is a polycyclic disease driven by airborne spores. A weather-based dynamic simulation model for B. lactucae airborne spores was developed to simulate the aerobiological characteristics of the pathogen. The model was built using the STELLA platform by follow...

This paper presents an overview of an ongoing dissertation, whose main objective is to study the combined application of artificial life and evolutionary algorithm techniques to the development of simulation models for crop diseases, applied to the concrete case of downy mildew of the grapevine.

Understanding the plant-pathogen interactions is of utmost importance to design strategies for minimizing the economic deficits caused by pathogens in crops. With an aim to identify genes underlying resistance to downy mildew, a major disease responsible for productivity loss in pearl millet, transcriptome analysis was performed in downy mildew resistant and susceptible genotypes upon infection...

Viticulture is carried out for different purposes in almost every region of the world. Although V. vinifera L. cultivars are most commonly grown species Turkey, their cultivation very limited Yalova and similar humid regions. In these regions, fungal diseases common due to heavy rain, sunlight stagnant air movement, especially spring summer months. For this reason, viticulture can only be perfo...

A new antibiotic SF-2185 was found active against plant pathogen, particularly the causal organisms of cucumber downy mildew and rice blast. The producing organism, strain SF-2185, is a novel actinomycete and has been identified as Dactylosporangium aurantiacum subsp. gifuense.

We reported 31 microsatellite markers that have been developed from microsatellite-enriched and direct shotgun pyrosequencing libraries of Plasmopara viticola, the causal agent of grapevine downy mildew. These markers were optimized for population genetics applications and used to characterize 96 P. viticola isolates from three European and three North American populations.

Downy mildew is currently the most serious disease of sweet basil around the world. The oomycete causal agent Peronospora belbahrii requires ≥ 4h free leaf moisture for infection and ≥7.5h of water-saturated atmosphere (relative humidity RH≥95%) at night for sporulation. We show here that continued nocturnal fanning (wind speed of 0.4-1.5 m/s) from 8pm to 8am dramatically suppressed downy milde...

the compatibility studies of pseudomonas fluorescens (pf1) with azoxystrobin at differ-ent concentrations viz., 100, 150, 200, 250 and 300 ppm revealed that it was compatible with all the concentrations of azoxystrobin tested and the growth of the bacterium was unaffected even at the maximum concentration of 300 ppm. the field experiment revealed a foliar application of pf1 (2.5 kg ha-1) and az...

Downy mildews and root and foliar rots caused by Phytophthora are among the most destructive plant pathogens and therefore have attracted considerable attention during the past two decades. Although it has been realized that a close phylogenetic relationship exists, so far sharp distinction has been made between the obligate biotrophic downy mildews and the hemibiotrophic Phytophthora. In the s...