Xanthomonas oryzae
Encyclopedia
Xanthomonas oryzae is a species of proteobacteria
. The major host of the bacteria is rice
.
The species contains two pathovar
s which are non-European: Xanthomonas oryzae pv. oryzae
and Xanthomonas oryzae pv. oryzicola
.
Host resistance gene, Xa21,from Oryza longistaminata
is integrated into the genome of Oryza sativa
for the board range resistance of rice blight disease caused by Xanthomonas oryzae pv. oryzae
Proteobacteria
The Proteobacteria are a major group of bacteria. They include a wide variety of pathogens, such as Escherichia, Salmonella, Vibrio, Helicobacter, and many other notable genera....
. The major host of the bacteria is rice
Rice
Rice is the seed of the monocot plants Oryza sativa or Oryza glaberrima . As a cereal grain, it is the most important staple food for a large part of the world's human population, especially in East Asia, Southeast Asia, South Asia, the Middle East, and the West Indies...
.
The species contains two pathovar
Pathovar
A pathovar is a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts.Pathovars are named as a ternary or...
s which are non-European: Xanthomonas oryzae pv. oryzae
Xanthomonas oryzae pv. oryzae
Xanthomonas oryzae pv. oryzae is a bacterium which causes a serious blight of rice, other grasses and sedges.-Background:The genus Xanthomonas, which mostly comprises phytopathogenic bacteria, is a member of the family Pseudomonadaceae. Among xanthomonads, Xanthomonas oryzae pv...
and Xanthomonas oryzae pv. oryzicola
.
Host resistance gene, Xa21,from Oryza longistaminata
Oryza longistaminata
Oryza longistaminata A. Chev. & Röhr, can be found in the USA where it is regarded as a noxious weed, and in the Nylsvley Nature Reserve in South Africa...
is integrated into the genome of Oryza sativa
Oryza sativa
Oryza sativa, commonly known as Asian rice, is the plant species most commonly referred to in English as rice. Oryza sativa is the cereal with the smallest genome, consisting of just 430Mb across 12 chromosomes...
for the board range resistance of rice blight disease caused by Xanthomonas oryzae pv. oryzae