Nonhost resistance: how much do we know?
Nonhost disease resistance is the most common form of disease resistance exhibited by plants against the majority of potentially pathogenic microorganisms. Recently, several components of nonhost disease resistance have been identified. Nonhost resistance exhibited against bacteria, fungi and oomycetes can be of two types. Type I nonhost resistance does not produce any visible symptoms whereas type II nonhost resistance results in a rapid hypersensitive response with cell death. Strong similarities exist between nonhost and gene-for-gene resistance responses but it is still not clear if the same mechanism is involved in producing these resistance responses.
Mysore
Kirankumar S
KS
Plant Biology Division, Samuel Roberts Noble Foundation, Ardmore, OK 73401, USA. ksmysore@noble.org
Ryu
Choong-Min
CM
D017209:Apoptosis; D001419:Bacteria / Q000235:genetics / Q000472:pathogenicity; D005658:Fungi / Q000235:genetics / Q000472:pathogenicity; D007113:Immunity, Innate; D010935:Plant Diseases / Q000235:genetics / Q000382:microbiology*; D010944:Plants / Q000276:immunology* / Q000382:microbiology; D015398:Signal Transduction; D013045:Species Specificity