CELLS EXPRESSING ENOD2 SHOW DIFFERENTIAL SPATIAL-ORGANIZATION DURING THE DEVELOPMENT OF ALFALFA ROOT-NODULES

被引：20

作者：

ALLEN, T ^{[1
]}

RAJA, S ^{[1
]}

DUNN, K ^{[1
]}

机构：

[1] BOSTON COLL,DEPT BIOL,CHESTNUT HILL,MA 02167

来源：

MOLECULAR PLANT-MICROBE INTERACTIONS | 1991年 / 4卷 / 02期

关键词：

MEDICAGO-SATIVA; NODULINS;

D O I：

10.1094/MPMI-4-139

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

We have used in situ hybridization to examine the spatial organization of cells expressing the early nodulin gene (ENOD2) during the development of alfalfa root nodules. ENOD2 gene expression was found in the nodule parenchyma, uninfected cells surrounding the symbiotic region of both effective and ineffective nodules. However, in empty nodules, ENOD2 gene expression was found in a mass of parenchyma cells at the base of the nodule. Similar results were also observed in 11-day-old nodules that contained infected cells but that had not yet begun to express leghemoglobin. Although early events of nodulation result in the induction of ENOD2 expression in cells at the nodule base, the pattern of cells expressing ENOD2 during nodule growth appears to be correlated with the development of other peripheral tissues.

引用

页码：139 / 146

页数：8