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108<br />

Dietrich Werner<br />

Table 2. Modifications of Nod factors (Modified from Spaink 2000 and Pacios-Bras et al.<br />

2002) a<br />

Bacterial strain Nodulated GlcNAc Special substituents c<br />

<strong>plant</strong> residues<br />

tribes (n) b<br />

S. meliloti Galegeae 3,4,5 R4:Ac, R5:S, C16:2, C16:3, C26(w-1)OH<br />

R. leguminosarum<br />

bv. Viciae RBL5560 Galegeae 3,4,5 R4:Ac, C18:4<br />

bv. Viciae TOM Galegeae 3,4,5 R4:Ac, R5:Ac, C18:4<br />

bv. Viciae A1 Galegeae 3,4,5 R4:Ac, R5:Ac, C18:4, C18:3<br />

bv. Trifolii ANU842 Galegeae 3,4,5 R4:AC, R5:Ac, R6:Et, C20:4, C20:3, C18:3<br />

R. galegae Galegeae 4,5 R4:Cb, R9:Ac, C18:2, C18:3, C20:2, C20:3<br />

M. huakuii Galegeae 3,4,5 R5:S, R7:G, C18:4<br />

M. loti<br />

E1R, NZP2235 Loteae 4,5 R1:Me, R3:Cb, R5:AcFuc<br />

NZP2037 Loteae<br />

Genisteae 4,5 R1:Me, R2:Cb, R3:Cb, R5:AcFuc<br />

NZP2213 Loteae 2,3,4,5 R1:Me, R3:Cb, R5:AcFuc, R9:Fuc<br />

B. aspalati bv. carnosa Crotalarieae 3,4,5 R1:Me, R3:Cb, R4:Cb<br />

B. japonicum USDA110 Phaseoleae 5 R5:MeFuc<br />

B. japonicum USDA135 Phaseoleae 5 R4:Ac, R5:MeFuc<br />

B. elkanii USDA61 Phaseoleae 4,5 R1:Me, R4:Ac, R3:Cb, R5:MeFuc, R6:Gro<br />

R. etli Phaseoleae 4,5 R1:Me, R3:Cb, R5:AcFuc<br />

R. etli KIM5S Phaseoleae 6 R1:Me, R2-R6:H, R7:acetyl, R8:H, ring<br />

5:acetyl or H<br />

R. tropici Phaseoleae, 4,5 R1:Me, R5:S, R6:Man<br />

Mimoseae<br />

S. fredii<br />

USDA257 23 Tribes 3, 4,5 R5:MeFuc<br />

NGR234 26 Tribes 4,5 R1:Me, R3:Cb, R4:Cb, R5:MeFuc/AcMe-<br />

Fuc/SmeFuc<br />

Rhizobium sp. GRH2 Acacieae 3,5,6 R1:Me, R5:S<br />

S. teranga bv. acaciae Acacieae 5 R1:Me, R3/4:Cb, R5:S<br />

Mesorhizobium ORS1001 Acacieae 5 R1:Me, R3/4:Cb, R5:S<br />

A. caulinodans Robinieae 4,5 R1:Me, R4:Cb, R5:Fuc, R8:Ara<br />

S. sahelii Robinieae 4,5 R1:Me, R3/4:Cb, R5:Fuc, R8:Ara<br />

S. teranga bv. sesbaniae Robinieae 4,5 R1:Me, R3/4:Cb, R5:Fuc, R8:Ara<br />

a For backbone structure, see Fig. 4<br />

b The underlined numbers of N-acetylglucosamine (GlcNAc) residues indicate the most abundant<br />

species<br />

c The indicated substituents do not always occur in all lipochitin oligosaccharides (LCOs) produced,<br />

leading to a mixture of LCOs, which do or do not contain all possible substituents.<br />

Abbreviations: Me, N-methyl; Cb, O-carbamyl; Ac, O-acetyl; S, O-sulfyl; Fuc, a-linked fucosyl;<br />

MeFuc, 2-O-methylfucosyl, AcMeFuc, 4-O-acetyl-2- O-methylfucosyl; SmeFuc, 3-O-sulfate-2-Omethylfucosyl;<br />

Et, ethyl, Gro, glyceryl, Man, mannosyl; G, N-glycolyl; FA, fatty acyl

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