First Detection of Potato Spindle Tuber Viroid in Natural Isolates of Potato Blight Agent Phytophthora infestans.

Phytophthora infestans is the oomycete that causes potato blight, an important disease. The potato spindle tuber viroid (PSTVd) is a dangerous pathogen of many plants, including potato. We have previously shown that PSTVd can be transmitted from infected potato plants into the Ph.

Hybridization between Pyrenophora teres Forms in Natural Populations of Russia and the Republic of Belarus.

Two forms of the pathogenic fungus Pyrenophora teres, P. teres f. teres (a net form) and P.

Transmission of potato spindle tuber viroid between Phytophthora infestans and host plants.

Potato spindle tuber viroid (PSTVd) is a naked, circular, single-stranded RNA (356-363 nucleotides in length) which lacks any protein-coding sequences. It is an economically important pathogen and is classified as a high-risk plant quarantine disease. Moreover, it is known that PSTVd is mechanically transmitted by vegetative plant propagation through infected pollen, and by aphids.

Mining the Vavilov wheat diversity panel for new sources of adult plant resistance to stripe rust.

Multi-year evaluation of the Vavilov wheat diversity panel identified new sources of adult plant resistance to stripe rust. Genome-wide association studies revealed the key genomic regions influencing resistance, including seven novel loci. Wheat stripe rust (YR) caused by Puccinia striiformis f.

[New genetic tools for plant defense against parasitic nematodes].

. Nematodes belong to economically important pests. Here we reviewed the recent data on molecular mechanisms of plant resistance to cyst and gall nematodes including the most devastating Globodera rostochiensis, G.