A dark ooze appears from cankers in trees with sudden oak death, which is caused by the ramorum species of this genus.
long with H. parasitica, members of this genus have been widely studied for the Avr family of effectors, which facilitate translocation of these organisms into host cells. Mating types labeled A1 and A2 are found in the heterothallic species of this genus. The Grunwald lab at Oregon State maintains the authoritative database on members of this genus, which infect organisms similar to those infected by members of the Pythium genus. One member of this genus has developed resistance against compounds like metalaxyl, and modern cultivars of the Solanaceae family have been bred with genes to resist that species. These oomycetes have a sojae species that causes stem and root rot in soybeans. A dark ooze appears from cankers in trees with sudden oak death, which is caused by the ramorum species of this genus. For 10 points, name this genus of water molds, whose species are responsible for causing deadly plant diseases, such as the infestans species that caused the Irish potato famine.
long with H. parasitica, members of this genus have been widely studied for the Avr family of effectors, which facilitate translocation of these organisms into host cells.
Phytophthora [accept Phytophthora infestans or Phytophthora ramorum at any point; prompt on "P. infestans" or "P. ramorum"]