ROOT-KNOT NEMATODE-DIRECTED EXPRESSION OF A PLANT ROOT-SPECIFIC GENE

被引：153

作者：

OPPERMAN, CH

TAYLOR, CG

CONKLING, MA

机构：

[1] N CAROLINA STATE UNIV,DEPT GENET,RALEIGH,NC 27695

[2] N CAROLINA STATE UNIV,DEPT PLANT PATHOL,RALEIGH,NC 27695

来源：

SCIENCE | 1994年 / 263卷 / 5144期

关键词：

D O I：

10.1126/science.263.5144.221

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：

Root-knot nematodes are obligate plant parasites that induce development of an elaborate feeding site during root infection. Feeding-site formation results from a complex interaction between the pathogen and the host plant in which the nematode alters patterns of plant gene expression within the cells destined to become the feeding site. Expression of TobRB7, a gene expressed only in tobacco roots, is induced during feeding site development. The cis-acting sequences that mediate induction by the nematode are separate from those that control normal root-specific expression. Reporter transgenes driven by the nematode-responsive promoter sequences exhibit expression exclusively in the developing feeding site.

引用

页码：221 / 223

页数：3

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