active oxygen species;
cryptogein;
elicitation;
NADPH oxidase;
plasma membrane;
tobacco;
D O I:
10.1046/j.1365-313X.2002.01342.x
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
A cDNA encoding a protein, NtrbohD, located on the plasma membrane and homologue to the flavocytochrome of the neutrophil NADPH oxidase, was cloned in tobacco. The corresponding mRNA was accumulated when tobacco leaves and cells were treated with the fungal elicitor cryptogein. After elicitation with cryptogein, tobacco cells transformed with antisense constructs of NtrbohD showed the same extracellular alkalinization as the control, but no longer produced active oxygen species (AOS). This work represents the first demonstration of the function of a homologue of gp91(-phox) in AOS production in elicited tobacco cells.
机构:
Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Div Biochem, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Sch Biol Sci, Div Biochem, Egham TW20 0EX, Surrey, England
机构:
Univ London Royal Holloway & Bedford New Coll, Sch Biol Sci, Div Biochem, Egham TW20 0EX, Surrey, EnglandUniv London Royal Holloway & Bedford New Coll, Sch Biol Sci, Div Biochem, Egham TW20 0EX, Surrey, England