Article

ITS region of the rDNA of Pythium rhizosaccharum sp. nov. isolated from sugarcane roots: taxonomy and comparison with related species.

Laboratoire des Sciences de la Vigne, Institut Jules Guyot, Université de Bourgogne, Dijon, France.
FEMS Microbiology Letters (impact factor: 2.04). 05/2003; 221(2):233-6.
Source: PubMed

ABSTRACT Pythium rhizosaccharum (F-1244) was isolated from soil samples taken in the rhizosphere of sugarcane (Saccharum officinarum) in the north-eastern India. This species is characterized by its smooth-walled, spherical sporangia and rarely formed sexual structures. When formed, the antheridial branches wrap around the oogonia and soon disappear after fertilization. The internal transcribed spacer (ITS) region of its rDNA is comprised of 904 bases. The taxonomical description of this new species and its comparison with related species are given here, together with the nucleotide sequences of the ITS1 and ITS2, and the 5.8S gene of its ribosomal nuclear DNA.

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Keywords

antheridial branches
 
internal transcribed spacer
 
ITS1
 
nucleotide sequences
 
rDNA
 
ribosomal nuclear DNA
 
smooth-walled
 
soil samples
 
spherical sporangia
 
taxonomical description