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    KNAT1 homeobox knotted-like protein [ Arabidopsis thaliana (thale cress) ]

    Gene ID: 826364, updated on 18-Sep-2024

    GeneRIFs: Gene References Into Functions

    GeneRIFPubMed TitleDate
    BREVIPEDICELLUS Positively Regulates Salt-Stress Tolerance in Arabidopsis thaliana.

    BREVIPEDICELLUS Positively Regulates Salt-Stress Tolerance in Arabidopsis thaliana.
    Cai H, Xu Y, Yan K, Zhang S, Yang G, Wu C, Zheng C, Huang J., Free PMC Article

    01/28/2023
    Study discovered SOBIR1/EVR as a regulator of secondary growth. SOBIR1/EVR acts through a mechanism that involves BREVIPEDICELLUS (BP) and ERECTA (ER), two proteins previously known to regulate xylem fiber development. BP binds SOBIR1/EVR promoter and that SOBIR1/EVR expression is enhanced in bp mutants, suggesting a direct, negative regulation of BP over SOBIR1/EVR expression.

    SOBIR1/EVR prevents precocious initiation of fiber differentiation during wood development through a mechanism involving BP and ERECTA.
    Milhinhos A, Vera-Sirera F, Blanco-Touriñán N, Mari-Carmona C, Carrió-Seguí À, Forment J, Champion C, Thamm A, Urbez C, Prescott H, Agustí J., Free PMC Article

    04/11/2020
    the promotion by constitutive overexpression of KNAT1 of fiber formation and the expression of genes required for fiber differentiation were still reverted by DELLA accumulation, in agreement with post-translational regulation of KNAT1 by DELLA proteins.

    Regulation of xylem fiber differentiation by gibberellins through DELLA-KNAT1 interaction.
    Felipo-Benavent A, Úrbez C, Blanco-Touriñán N, Serrano-Mislata A, Baumberger N, Achard P, Agustí J, Blázquez MA, Alabadí D.

    04/13/2019
    BREVIPEDICELLUS (BP) encodes a class-I KNOTTED1-like homeobox (KNOX) transcription factor. FIL acts to oppose KNOX1 gene function through a complex regulatory network that involves changes in secondary metabolites and auxin.

    A novel Filamentous Flower mutant suppresses brevipedicellus developmental defects and modulates glucosinolate and auxin levels.
    Douglas SJ, Li B, Kliebenstein DJ, Nambara E, Riggs CD., Free PMC Article

    09/23/2017
    that complexes of the transcription factors ASYMMETRIC LEAVES 1 (AS1) and AS2 could help to establish the H3K27me3 modification at the chromatin regions of Class-I KNOTTED1-like homeobox (KNOX) genes BREVIPEDICELLUS and KNAT2 via direct interactions with LHP1.

    Transcription factors AS1 and AS2 interact with LHP1 to repress KNOX genes in Arabidopsis.
    Li Z, Li B, Liu J, Guo Z, Liu Y, Li Y, Shen WH, Huang Y, Huang H, Zhang Y, Dong A.

    04/15/2017
    our results indicate that BP interacts with the chromatin remodeling factor BRM to regulate the expression of KNAT2 and KNAT6 in control of inflorescence architecture.

    Arabidopsis BREVIPEDICELLUS interacts with the SWI2/SNF2 chromatin remodeling ATPase BRAHMA to regulate KNAT2 and KNAT6 expression in control of inflorescence architecture.
    Zhao M, Yang S, Chen CY, Li C, Shan W, Lu W, Cui Y, Liu X, Wu K., Free PMC Article

    01/2/2016
    Arabidopsis plants harboring loss-of-function KNOX2 alleles exhibit impaired differentiation of all aerial organs and have highly complex leaves, phenocopying gain-of-function KNOX1 alleles.

    Antagonistic roles for KNOX1 and KNOX2 genes in patterning the land plant body plan following an ancient gene duplication.
    Furumizu C, Alvarez JP, Sakakibara K, Bowman JL., Free PMC Article

    07/25/2015
    NTT loss of function leads to reduced replum width and cell number, whereas increased expression promotes replum enlargement. NTT activates the homeobox gene BP, which, together with RPL, is important for replum development.

    The NTT transcription factor promotes replum development in Arabidopsis fruits.
    Marsch-Martínez N, Zúñiga-Mayo VM, Herrera-Ubaldo H, Ouwerkerk PB, Pablo-Villa J, Lozano-Sotomayor P, Greco R, Ballester P, Balanzá V, Kuijt SJ, Meijer AH, Pereira A, Ferrándiz C, de Folter S.

    06/6/2015
    In the cambium, KNAT1 and STM, contrary to their function in the shoot apical meristem, promote cell differentiation through repression of BOP genes.

    Class I KNOX transcription factors promote differentiation of cambial derivatives into xylem fibers in the Arabidopsis hypocotyl.
    Liebsch D, Sunaryo W, Holmlund M, Norberg M, Zhang J, Hall HC, Helizon H, Jin X, Helariutta Y, Nilsson O, Polle A, Fischer U.

    01/10/2015
    Arabidopsis ASYMMETRIC LEAVES complex physically interacts with PRC2 and recruits this complex to the homeobox genes BREVIPEDICELLUS and KNAT2 to stably silence these stem cell regulators in differentiating leaves. [BP]

    The ASYMMETRIC LEAVES complex maintains repression of KNOX homeobox genes via direct recruitment of Polycomb-repressive complex2.
    Lodha M, Marco CF, Timmermans MC., Free PMC Article

    07/8/2014
    KNAT1 negatively modulates root skewing, possibly by regulating auxin transport

    Modulation of root-skewing responses by KNAT1 in Arabidopsis thaliana.
    Qi B, Zheng H.

    05/31/2014
    This function of STM in meristem establishment and organisation can be replaced by KNAT1/BP, but not KNAT2.

    The Arabidopsis homeobox gene SHOOT MERISTEMLESS has cellular and meristem-organisational roles with differential requirements for cytokinin and CYCD3 activity.
    Scofield S, Dewitte W, Nieuwland J, Murray JAH.

    03/8/2014
    The data indicate that the ATH1-KNAT2 complex acts redundantly with KNAT6, both of which are negatively regulated by BP during pedicel development.

    ATH1 and KNAT2 proteins act together in regulation of plant inflorescence architecture.
    Li Y, Pi L, Huang H, Xu L., Free PMC Article

    06/2/2012
    Results indicate that BP/KNAT1 acts as a negative regulator and KNAT2 and KNAT6 act as positive regulators of floral organ separation in the IDA-HAE/HSL2 signaling cascade.

    Arabidopsis class I KNOTTED-like homeobox proteins act downstream in the IDA-HAE/HSL2 floral abscission signaling pathway.
    Shi CL, Stenvik GE, Vie AK, Bones AM, Pautot V, Proveniers M, Aalen RB, Butenko MA., Free PMC Article

    02/25/2012
    Results suggested that the late-flowering phenotype of the as1-1 and as2-1 mutants might have been caused by the ectopic expression of KNAT126 triple mutation.

    Genetic networks regulated by ASYMMETRIC LEAVES1 (AS1) and AS2 in leaf development in Arabidopsis thaliana: KNOX genes control five morphological events.
    Ikezaki M, Kojima M, Sakakibara H, Kojima S, Ueno Y, Machida C, Machida Y.

    04/12/2010
    data showed that BP and PNY restrict KNAT6 and KNAT2 expression to promote correct inflorescence development

    Interaction of KNAT6 and KNAT2 with BREVIPEDICELLUS and PENNYWISE in Arabidopsis inflorescences.
    Ragni L, Belles-Boix E, Günl M, Pautot V., Free PMC Article

    01/21/2010
    Expression of KNAT1 in the integuments leads to extra cell divisions in the outer layer of the outer integument, and being compensated for by a decrease of cell volume, thus showing that mechanisms exist to control proper ovule integument morphogenesis.

    Arabidopsis thaliana outer ovule integument morphogenesis: ectopic expression of KNAT1 reveals a compensation mechanism.
    Truernit E, Haseloff J., Free PMC Article

    01/21/2010
    Heterodimers with PENNYWISE or POUND-FOOLISH are essential for establishing early internode patterning events.

    Arabidopsis inflorescence architecture requires the activities of KNOX-BELL homeodomain heterodimers.
    Kanrar S, Onguka O, Smith HM.

    01/21/2010
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