Analysis of secreted protease inhibitors after water stress in potato tubers.
Potato tubers (Solanum tuberosum) secrete two kinds of proteinase inhibitors after a water stress. The polypeptides have differing inhibitory activities but are Kunitz-type inhibitors based on amino-terminal sequences homologies. A proteolysis maturation type of a cell protease inhibitor was observed. They can constitute high MW complex, sometimes with another type of protein. The function of these protease inhibitors is discussed in relation to plant defence.
Ledoigt
G
G
EA3296 ERTAC, Physiologie et Génétique Végétales, Université Blaise-Pascal (Clermont-Ferrand II), campus universitaire des Cézeaux, 24 avenue des Landais, 63177 Aubière Cedex, France. Gerard.LEDOIGT@ertac.univ-bpclermont.fr
Griffaut
B
B
Debiton
E
E
Vian
C
C
Mustel
A
A
Evray
G
G
Maurizis
J-C
JC
Madelmont
J-C
JC
D000595:Amino Acid Sequence; D002021:Buffers; D004591:Electrophoresis, Polyacrylamide Gel; D046911:Macromolecular Substances / Q000737:chemistry; D008969:Molecular Sequence Data; D010455:Peptides / Q000737:chemistry; D035281:Plant Tubers / Q000737:chemistry; D011480:Protease Inhibitors / Q000737:chemistry* / Q000494:pharmacology*; D017434:Protein Structure, Tertiary; D011506:Proteins / Q000737:chemistry; D011198:Solanum tuberosum / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
D002021:Buffers; D046911:Macromolecular Substances; D010455:Peptides; D011480:Protease Inhibitors; D011506:Proteins; D014867:Water