A NOVEL HIGHLY UNSATURATED FATTY-ACID MOIETY OF LIPO-OLIGOSACCHARIDE SIGNALS DETERMINES HOST SPECIFICITY OF RHIZOBIUM

被引:440
作者
SPAINK, HP
SHEELEY, DM
VANBRUSSEL, AAN
GLUSHKA, J
YORK, WS
TAK, T
GEIGER, O
KENNEDY, EP
REINHOLD, VN
LUGTENBERG, BJJ
机构
[1] HARVARD UNIV,SCH PUBL HLTH,DEPT NUTR,BOSTON,MA 02115
[2] COMPLEX CARBOHYDRATE RES CTR,ATHENS,GA 30602
[3] HARVARD UNIV,SCH MED,DEPT BIOL CHEM & MOLEC PHARMACOL,BOSTON,MA 02115
关键词
D O I
10.1038/354125a0
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In Rhizobium leguminosarum biovar viciae, the nodABC and nodFEL operons are involved in the production of lipo-oligosaccharide signals which mediate host specificity. The structure of these metabolites and those produced in nod mutants links the nodE and nodL genes to specific chemical features of the signal molecules. A nodE-determined, highly unsaturated fatty acid and a nodL-determined O-acetyl substituent are essential for the ability of the signals to induce nodule meristems on the host plant Vicia sativa.
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页码:125 / 130
页数:6
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