Abstract: The process of the invention comprises the implementation of axenic conditions, with use of a liquid single-phase culture medium. For obtaining the amastigote forms, this medium is buffered at a pH of 5.5 to 6.5 and has an osmolarity of at least 400 milliosmoles/kg of liquid, and in particular 400 to 550 milliosmoles/kg of liquid. For obtaining promastigote forms, this medium is buffered at a pH of 7 to 7.5 and has an osmolarity of at least 300 milliosmoles/kg of liquid. This process allows the adaptation and culture in vitro of different stages of tissular parasites, such as leishmanias and T. cruzi or also hematoprotozoa.
Type:
Grant
Filed:
October 1, 2002
Date of Patent:
January 8, 2008
Assignee:
Institut Francais de Recherche Scientifique pour le Developpement en Cooperation (Orstom)
Abstract: The process of the invention comprises the implementation of axenic conditions, with use of a liquid single-phase culture medium. For obtaining the amastigote forms, this medium is buffered at a pH of 5.5 to 6.5 and has an osmolarity of at least 400 milliosmoles/kg of liquid, and in particular 400 to 550 milliosmoles/kg of liquid. For obtaining promastigote forms, this medium is buffered at a pH of 7 to 7.5 and has an osmolarity of at least 300 milliosmoles/kg of liquid. This process allows the adaptation and culture in vitro of different stages of tissular parasites, such as leishmanias and T. cruzi or also hematoprotozoa.
Type:
Application
Filed:
October 1, 2002
Publication date:
July 24, 2003
Applicant:
Institut Francais de Recherche Scientifique Pour Le Developpement en Cooperation (ORSTOM)
Abstract: The process of the invention comprises the implementation of axenic conditions, with use of a liquid single-phase culture medium. For obtaining the amastigote forms, this medium is buffered at a pH of 5.5 to 6.5 and has an osmolarity of at least 400 milliosmoles/kg of liquid, and in particular 400 to 550 milliosmoles/kg of liquid. For obtaining promastigote forms, this medium is buffered at a pH of 7 to 7.5 and has an osmolarity of at least 300 milliosmoles/kg of liquid. This process allows the adaptation and culture in vitro of different stages of tissular parasites, such as leishmanias and T. cruzi or also hematoprotozoa.
Type:
Application
Filed:
July 9, 2002
Publication date:
April 10, 2003
Applicant:
Institut Francais de Recherche Scientifique Pour Le Developpement en Cooperation (ORSTOM)
Abstract: The process of the invention comprises the implementation of axenic conditions, with use of a liquid single-phase culture medium. For obtaining the amastigote forms, this medium is buffered at a pH of 5.5 to 6.5 and has an osmolarity of at least 400 milliosmoles/kg of liquid, and in particular 400 to 550 milliosmoles/kg of liquid. For obtaining promastigote forms, this medium is buffered at a pH of 7 to 7.5 and has an osmolarity of at least 300 milliosmoles/kg of liquid. This process allows the adaptation and culture in vitro of different stages of tissular parasites, such as leishmanias and T. cruzi or also hematoprotozoa.
Type:
Application
Filed:
October 1, 2002
Publication date:
March 27, 2003
Applicant:
Institut Francais de Recherche Scientifique Pour Le Developpement en Cooperation (ORSTOM)
Abstract: The present invention provides a method for carrying out in vitro the complete developmental sequence culture of tissular parasites, which includes culturing the parasites in a totally defined culture medium which is an axenic monophasic liquid culture medium, free of serum and free of serum-derived or cell-derived macromolecules, proteins and peptides. For obtaining amastigote forms, this medium is buffered at a pH of 5.5 to 6.5 and has an osmolarity of at least 400 milliosmoles/kg of liquid. For obtaining promastigote forms, the medium is buffered at a pH of 7 to 7.5 and has an osmolarity of at least 300 milliosmoles/kg liquid. Application to the in vitro culture of different stages of tissular parasites such as Leishmania, T. cruzi, and hamatoprotozoa is also provided.
Type:
Grant
Filed:
November 9, 1995
Date of Patent:
October 1, 2002
Assignee:
Institut francais de recherche scientifique pour le
developpement en Cooperation (ORSTOM)
Abstract: Bacterial strains of genus Bacillus closely phenotypically related to genus Lactobacillus. The strains are moderately thermophilic, have amylolytic properties and/or are capable of producing L(+) lactate, and are useful for producing metabolites such as L(+) lactate.
Type:
Grant
Filed:
January 10, 1996
Date of Patent:
February 8, 2000
Assignee:
Institut Francais de Recherche Scientifique pour le Developpement en Cooperation (Orstom)
Inventors:
Yannick Combet-Blanc, Bernard Ollivier, Jean-Louis Garcia