You are signed in as:
  • IFPRI
  • Signed in via:
  • IP Address

  • Choose a colour
  • Genetic and genomic evidence that sucrose is a global regulator of plant responses to phosphate starvation in Arabidopsis.

    Author(s) : Lei MingGuangLiu YiDanZhang BaoCaiZhao YingTaoWang XiuJieZhou YiHuaRaghothama, K. G.Liu Dong

    Author Affiliation : Protein Science Laboratory of the Ministry of Education, School of Life Sciences, Tsinghua University, Beijing 100084, China.

    Author Email : liu-d@tsinghua.edu.cn

    Journal article : Plant Physiology 2011 Vol.156 No.3 pp.1116-1130 ref.50

    Abstract : PlantsplantsSubject Category: Organism Names
    see more details
    respond to phosphate (Pi) starvation by exhibiting a suite of developmental, biochemical, and physiological changes to cope with this nutritional stress. To understand the molecular mechanism underlying these responses, we isolated an Arabidopsis (Arabidopsis thalianaarabidopsis thalianaSubject Category: Organism Names
    see more details
    ) mutant, hypersensitive to phosphate starvation1 (hps1), which has enhanced sensitivity in almost all aspects of plant responses to Pi starvation. Molecular and genetic analyses indicated that the mutant phenotype is caused by overexpression of the SUCROSEsucroseSubject Category: Chemicals and Chemical Groups
    see more details
    TRANSPORTER2
    (SUC2) gene. As a consequence, hps1 has a high level of sucrose (Suc) in both its shoot and root tissues. Overexpression of SUC2 or its closely related family members SUC1 and SUC5 in wild-type plants recapitulates the phenotype of hps1. In contrast, the disruption of SUC2 functions greatly inhibits plant responses to Pi starvation. Microarray analysis further indicated that 73% of the genes that are induced by Pi starvation in wild-type plants can be induced by elevated levels of Suc in hps1 mutantsmutantsSubject Category: Miscellaneous
    see more details
    , even when they are grown under Pi-sufficient conditions. These genes include several important Pi signaling components and those that are directly involved in Pi transport, mobilizationmobilizationSubject Category: Miscellaneous
    see more details
    , and distribution between shoot and root. Interestingly, Suc and low-Pi signals appear to interact with each other both synergistically and antagonistically in regulating gene expressiongene expressionSubject Category: Miscellaneous
    see more details
    . Our genetic and genomic studies provide compelling evidence that Suc is a global regulator of plant responses to Pi starvation. This finding will help to further elucidate the signaling mechanism that controls plant responses to this particular nutritional stress.

    ISSN : 0032-0889

    DOI : 10.1104/pp.110.171736

    Record Number : 20113240489

    Publisher : American Society of Plant Biologists

    Location of publication : Rockville

    Country of publication : USA

    Language of text : English

    Indexing terms for this abstract:

    Organism descriptor(s) : Arabidopsis thalianaarabidopsis thalianaSubject Category: Organism Names
    see more details
    , BrassicalesbrassicalesSubject Category: Organism Names
    see more details

    Descriptor(s) : gene expressiongene expressionSubject Category: Miscellaneous
    see more details
    , genomesgenomesSubject Category: Miscellaneous
    see more details
    , mobilizationmobilizationSubject Category: Miscellaneous
    see more details
    , mutantsmutantsSubject Category: Miscellaneous
    see more details
    , nutrient deficienciesnutrient deficienciesSubject Category: Diseases, Disorders, and Symptoms
    see more details
    , nutrient transportnutrient transportSubject Category: Miscellaneous
    see more details
    , phosphatesphosphatesSubject Category: Chemicals and Chemical Groups
    see more details
    , rootsrootsSubject Category: Anatomical and Morphological Structures
    see more details
    , shootsshootsSubject Category: Anatomical and Morphological Structures
    see more details
    , sucrosesucroseSubject Category: Chemicals and Chemical Groups
    see more details

    Identifier(s) : Capparales, saccharose

    Broader term(s) : ArabidopsisarabidopsisSubject Category: Organism Names
    see more details
    , BrassicaceaebrassicaceaeSubject Category: Organism Names
    see more details
    , BrassicalesbrassicalesSubject Category: Organism Names
    see more details
    , eudicotseudicotsSubject Category: Organism Names
    see more details
    , angiospermsangiospermsSubject Category: Organism Names
    see more details
    , SpermatophytaspermatophytaSubject Category: Organism Names
    see more details
    , plantsplantsSubject Category: Organism Names
    see more details
    , eukaryoteseukaryotesSubject Category: Organism Names
    see more details