Nodulation and growth of nodules in the common bean (Phaseolus vulgaris) under salt stress.

被引:0
作者
Saadallah, K
Drevon, JJ
Abdelly, C
机构
[1] INRST, Lab Adaptat & Ameliorat Plantes, Hammam Lif 2050, Tunisia
[2] INRA, Lab Symbiotes Racines & Sci Sol, F-34060 Montpellier 1, France
来源
AGRONOMIE | 2001年 / 21卷 / 6-7期
关键词
salinity; symbiotic nitrogen fixation; nodulation; growth of nodule;
D O I
暂无
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
In order to determine the respective parts of the nodulation and the growth of nodules in the decrease of the nodule dry matter observed in common beans exposed to salinity, the following experiment was carried out. After germination, plants inoculated with an efficient strain of Rhizobium CIAT899 were grown in salt free medium or one containing 25 or 50 mM NaCl. In another treatment, plants were submitted later (after nodulation, 28 DAS) to 25 mM NaCl. Salt decreases the different parameters of growth. However, its effects were more pronounced in plants with early exposure to salt. The nodule DW and, to a lesser degree, growth of roots were the most affected. The mean number of nodules per plant was systematically less affected by salt than nodule DW. Also, the number of nodules per unit of root DW was generally the same or even larger in plants submitted to salt than controls. These results showed that the decrease of the nodule DW in the presence of salt is owed to an inhibition of the infection resulting more from a limitation of root growth than from a low predisposition of these organs to the infection and to a reduction of the nodule growth resulting from a restriction of the feeding of these organs with photosynthetates. This last parameter seems especially sensitive to salt.
引用
收藏
页码:627 / 634
页数:8
相关论文
共 44 条
[1]   Episodic association of strict halophytes and glycophytes in a saline, hydromorphic ecosystem in semi-arid zones. [J].
Abdelly, C ;
Lachaal, M ;
Grignon, C ;
Soltani, A ;
Hajji, M .
AGRONOMIE, 1995, 15 (9-10) :557-568
[2]   DEVELOPMENTAL REGULATION OF ENZYMES OF SUCROSE AND HEXOSE METABOLISM IN EFFECTIVE AND INEFFECTIVE SOYBEAN NODULES [J].
ANTHON, GE ;
EMERICH, DW .
PLANT PHYSIOLOGY, 1990, 92 (02) :346-351
[3]   INFECTION OF LEGUMES BY RHIZOBIA [J].
BAUER, WD .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1981, 32 :407-449
[4]  
BRUN A, 1980, THESIS USTL MONTPELL
[5]  
BUSHBY HVA, 1982, NITROGEN FIXATION, V2, P35
[6]   NITRATE INHIBITION OF NODULATION AND NITROGEN-FIXATION IN WHITE CLOVER [J].
CARROLL, BJ ;
GRESSHOFF, PM .
ZEITSCHRIFT FUR PFLANZENPHYSIOLOGIE, 1983, 110 (01) :77-88
[7]  
CAUWENBERGHE ORV, 1994, PHYSIOL PLANTARUM, V91, P477
[8]  
Drevon JJ, 1995, COLLOQ INRA, P73
[9]   EFFECT OF SALINITY ON GROWTH, NODULATION AND NITROGEN YIELD OF CHICKPEA (CICER-ARIETINUM L) [J].
ELSHEIKH, EAE ;
WOOD, M .
JOURNAL OF EXPERIMENTAL BOTANY, 1990, 41 (231) :1263-1269
[10]   EFFECT OF SALINITY AND INOCULATION ON GROWTH, NITROGEN-FIXATION AND NUTRIENT-UPTAKE OF VIGNA-RADIATA (L) WILCZEK [J].
HAFEEZ, FY ;
ASLAM, Z ;
MALIK, KA .
PLANT AND SOIL, 1988, 106 (01) :3-8