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. 1995 Aug 11;269(5225):841-3.
doi: 10.1126/science.269.5225.841.

Growth of Tobacco Protoplasts Stimulated by Synthetic Lipo-Chitooligosaccharides

Growth of Tobacco Protoplasts Stimulated by Synthetic Lipo-Chitooligosaccharides

H Röhrig et al. Science. .

Abstract

fat Nodulation (Nod) factors are lipo-chitooligosaccharides (LCOs) secreted by rhizobia to trigger the early steps of nodule organogenesis in leguminous plants. A method to synthesize LCOs in vitro was developed. Synthetic LCOs alleviated the requirement for auxin and cytokinin to sustain growth of cultured tobacco protoplasts. LCOs containing C(18:1) trans-fatty acyl substituents were more effective than those containing cis-fatty acids in promoting cell division as well as in activating an auxin-responsive promoter and the expression of a gene implicated in auxin action. These data indicate that LCOs redirect plant growth also in nonlegumes by activating developmental pathways also targeted by phytohormones.

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