Type:

Other

Description:

Cytokinins are essential plant hormones that control cell division, shoot meristem initiation, leaf and root differentiation, vasculature patterning, chloroplast biogenesis, photomorphogenesis, fertility, seed development, senescence, and stress tolerance. The Arabidopsis cytokinin signal transduction pathway involves hybrid histidine protein kinases [AHK2, AHK3, and AHK4 (also known as CRE1or WOL)] as cytokinin receptors, histidine phosphotransfer proteins (AHPs), and nuclear response regulators (ARRs) that serve as transcriptional regulators. There are four major steps in the cytokinin phosphorelay: (i) AHK sensing and signaling, (ii) AHP nuclear translocation, (iii) ARR-dependent transcriptional activation, and (iv) a negative-feedback loop through cytokinin-inducible ARR gene products. Each step is executed by components encoded by multigene families. The effects of cytokinin depend on cell type, environment, and developmental stage. The response is frequently the outcome of interactions with other plant signaling pathways.

Subjects:

  • Education > General

Education Levels:

    Keywords:

    NSDL,NSDL_SetSpec_BEN,signal transduction,Connections Map,database,Life Science,plant development,signaling pathway,phosphorelay,Education,oai:nsdl.org:2200/20080618221523692T,Computing and Information

    Language:

    English

    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike

    Collections:

    None
    This resource has not yet been aligned.
    Curriki Rating
    'NR' - This resource has not been rated
    NR
    'NR' - This resource has not been rated

    This resource has not yet been reviewed.

    Not Rated Yet.

    Non-profit Tax ID # 203478467