GROWTH OF TOBACCO PROTOPLASTS STIMULATED BY SYNTHETIC LIPO-CHITOOLIGOSACCHARIDES

被引：62

作者：

ROHRIG, H

SCHMIDT, J

WALDEN, R

CZAJA, I

MIKLASEVICS, E

WIENEKE, U

SCHELL, J

JOHN, M

机构：

[1] Max-Planck-Institut für Züchtungsforschung, 50829 Köln

来源：

SCIENCE | 1995年 / 269卷 / 5225期

关键词：

D O I：

10.1126/science.269.5225.841

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：

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.

引用

页码：841 / 843

页数：3

共 29 条

[1]

DEJONG AJ, 1993, PLANT CELL, V5, P615, DOI 10.2307/3869804

[2] LIPO-OLIGOSACCHARIDE NODULATION FACTORS - A MINIREVIEW NEW CLASS OF SIGNALING MOLECULES MEDIATING RECOGNITION AND MORPHOGENESIS [J].