Sugar signals and molecular networks controlling plant growth.
In recent years, several regulatory systems that link carbon nutrient status to plant growth and development have emerged. In this paper, we discuss the growth promoting functions of the hexokinase (HXK) glucose sensor, the trehalose 6-phosphate (T6P) signal and the Target of Rapamycin (TOR) kinase pathway, and the growth inhibitory function of the SNF1-related Protein Kinase1 (SnRK1) and the C/S1 bZIP transcription factor network. It is crucial that these systems interact closely in regulating growth and in several cases crosstalk has been demonstrated. Importantly, these nutrient controlled systems must interact with other growth regulatory pathways.
Smeekens
Sjef
S
Department of Molecular Plant Physiology, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands. j.c.m.smeekens@uu.nl
Ma
Jingkun
J
Hanson
Johannes
J
Rolland
Filip
F
D029681:Arabidopsis Proteins / Q000378:metabolism; D050976:Basic-Leucine Zipper Transcription Factors / Q000378:metabolism*; D006593:Hexokinase / Q000378:metabolism*; D019869:Phosphatidylinositol 3-Kinases; D063245:Plant Development; D010944:Plants / Q000378:metabolism; D017346:Protein Serine-Threonine Kinases / Q000378:metabolism*; D013403:Sugar Phosphates / Q000378:metabolism*; D014199:Trehalose / Q000031:analogs & derivatives* / Q000378:metabolism
D029681:Arabidopsis Proteins; D050976:Basic-Leucine Zipper Transcription Factors; D006593:Hexokinase; D019869:Phosphatidylinositol 3-Kinases; D017346:Protein Serine-Threonine Kinases; D013403:Sugar Phosphates; D014199:Trehalose; C082722:trehalose-6-phosphate; C071570:SNF1-related protein kinases; C512171:TOR protein, Arabidopsis