Involvement of polyamines in plant response to abiotic stress.
Environmental stresses are the major cause of crop loss worldwide. Polyamines are involved in plant stress responses. However, the precise role(s) of polyamine metabolism in these processes remain ill-defined. Transgenic approaches demonstrate that polyamines play essential roles in stress tolerance and open up the possibility to exploit this strategy to improve plant tolerance to multiple environmental stresses. The use of Arabidopsis as a model plant enables us to carry out global expression studies of the polyamine metabolic genes under different stress conditions, as well as genome-wide expression analyses of insertional-mutants and plants over-expressing these genes. These studies are essential to dissect the polyamine mechanism of action in order to design new strategies to increase plant survival in adverse environments.
Alcázar
Rubén
R
Laboratori de Fisiologia Vegetal, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain.
Marco
Francisco
F
Cuevas
Juan C
JC
Patron
Macarena
M
Ferrando
Alejandro
A
Carrasco
Pedro
P
Tiburcio
Antonio F
AF
Altabella
Teresa
T
D017360:Arabidopsis / Q000502:physiology*; D001709:Biotechnology / Q000379:methods; D004777:Environment; D020869:Gene Expression Profiling; D018506:Gene Expression Regulation, Plant; D023281:Genomics; D008954:Models, Biological; D008957:Models, Genetic; D009154:Mutation; D018521:Plant Physiological Phenomena; D030821:Plants, Genetically Modified; D011073:Polyamines / Q000737:chemistry* / Q000378:metabolism*
D011073:Polyamines