Local and long-range signaling pathways regulating plant responses to nitrate

被引:383
作者
Forde, BG [1 ]
机构
[1] Univ Lancaster, Dept Biol Sci, Lancaster LA1 4YQ, England
关键词
auxin; cytokinin; lateral roots; leaf expansion; nitrate transport;
D O I
10.1146/annurev.arplant.53.100301.135256
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Nitrate is the major source of nitrogen (N) for plants growing in aerobic soils. However, the NO3- ion is also used by plants as a signal to reprogram plant metabolism and to trigger changes in plant architecture. A striking example is the way that a root system can react to a localized source of NO3- by activating the NO3- uptake system and proliferating lateral roots preferentially within the NO3--rich zone. That roots are able to respond autonomously in this fashion implies the existence of local signaling pathways that are sensitive to local changes in the external NO3- concentration. On the other hand, long-range signaling pathways are also needed to modulate these responses according to the plant's N status and to coordinate the allocation of resources between the root and the shoot. This review examines these signaling mechanisms and their interactions with sugar-sensing and hormonal response pathways.
引用
收藏
页码:203 / 224
页数:22
相关论文
共 141 条
[1]   Keeping up with the neighbours:: phytochrome sensing and other signalling mechanisms [J].
Ballaré, CL .
TRENDS IN PLANT SCIENCE, 1999, 4 (03) :97-102
[2]  
Beck EH, 1996, PLANT SOIL, V185, P3, DOI 10.1007/BF02257560
[3]   Nitric oxide in plants: the history is just beginning [J].
Beligni, MV ;
Lamattina, L .
PLANT CELL AND ENVIRONMENT, 2001, 24 (03) :267-278
[4]   Plant morphogenesis: long-distance coordination and local patterning [J].
Berleth, T ;
Sachs, T .
CURRENT OPINION IN PLANT BIOLOGY, 2001, 4 (01) :57-62
[5]   Relationship between tissue sugar content, phloem import and lateral root initiation in wheat [J].
Bingham, IJ ;
Blackwood, JM ;
Stevenson, EA .
PHYSIOLOGIA PLANTARUM, 1998, 103 (01) :107-113
[6]   Interactions between inorganic nitrogen nutrition and root development [J].
Bloom, AJ .
ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE, 1997, 160 (03) :253-259
[7]   Two genes with similarity to bacterial response regulators are rapidly and specifically induced by cytokinin in Arabidopsis [J].
Brandstatter, I ;
Kieber, JJ .
PLANT CELL, 1998, 10 (06) :1009-1019
[8]   Inoculation and nitrate alter phytohormone levels in soybean roots:: differences between a supernodulating mutant and the wild type [J].
Caba, JM ;
Centeno, ML ;
Fernández, B ;
Gresshoff, PM ;
Ligero, F .
PLANTA, 2000, 211 (01) :98-104
[9]   Auxin transport promotes Arabidopsis lateral root initiation [J].
Casimiro, I ;
Marchant, A ;
Bhalerao, RP ;
Beeckman, T ;
Dhooge, S ;
Swarup, R ;
Graham, N ;
Inzé, D ;
Sandberg, G ;
Casero, PJ ;
Bennett, M .
PLANT CELL, 2001, 13 (04) :843-852
[10]   A PATHWAY FOR LATERAL ROOT-FORMATION IN ARABIDOPSIS-THALIANA [J].
CELENZA, JL ;
GRISAFI, PL ;
FINK, GR .
GENES & DEVELOPMENT, 1995, 9 (17) :2131-2142