The cell wall DUF642 At2g41800 (TEB) protein is involved in hypocotyl cell elongation

Salazar-Iribe, Alexis; Agredano-Moreno, Lourdes Teresa; Zúñiga-Sánchez, Esther; Jiménez‐García, Luis Felipe; Gamboa‐deBuen, Alicia

doi:10.1016/j.plantsci.2016.10.007

Cited by 17 publications

(20 citation statements)

References 35 publications

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“…Cell wall loosening functions that may contribute to excess growth in mARF8 anthers were represented by expansin genes (Cosgrove, 2016). Enriched protein domains included both expansins and a family of DUF642 proteins that are secreted to the apoplast and may be involved in pectin metabolism (Zúñiga-Sánchez et al, 2014;Salazar-Iribe et al, 2016).…”

Section: Mutations Inmentioning

confidence: 99%

miR167 limits anther growth to potentiate anther dehiscence

et al. 2019

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In flowering plants, anther dehiscence and pollen release are essential for sexual reproduction. Anthers dehisce after cell wall degradation weakens stomium cell junctions in each anther locule, and desiccation creates mechanical forces that open the locules. Either effect or both together may break stomium cell junctions. The microRNA miR167 negatively regulates ARF6 and ARF8, which encode auxin response transcription factors. Arabidopsis mARF6 or mARF8 plants with mutated miR167 target sites have defective anther dehiscence and ovule development. Null mir167a mutations recapitulated mARF6 and mARF8 anther and ovule phenotypes, indicating that MIR167a is the main miR167 precursor gene that delimits ARF6 and ARF8 expression in these organs. Anthers of mir167a or mARF6/8 plants overexpressed genes encoding cell wall loosening functions associated with cell expansion, and grew larger than wild-type anthers did starting at flower stage 11. Experimental desiccation enabled dehiscence of miR167deficient anthers, indicating competence to dehisce. Conversely, high humidity conditions delayed anther dehiscence in wild-type flowers. These results support a model in which miR167-mediated anther growth arrest permits anther dehiscence. Without miR167 regulation, excess anther growth delays dehiscence by prolonging desiccation.

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Section: Mutations Inmentioning

confidence: 99%

miR167 limits anther growth to potentiate anther dehiscence

et al. 2019

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“…Cell wall immunolabeling has contributed in evaluating plant cell wall evolution and in redefining plant taxonomy (Leroux et al, 2011 , 2015 ). It has been instrumental in detecting cell wall alterations in plant mutants and transformants (e.g., Oomen et al, 2002 ; Freshour et al, 2003 ; Harholt et al, 2012 ; Zabotina et al, 2012 ; Salazar-Iribe et al, 2016 ) and has been a powerful technique to gain knowledge about the biological and physiological functions of cell wall polymers (e.g., Willats et al, 1999 ; Leboeuf et al, 2005 ; Domozych et al, 2014 ). To date, more than 200 probes directed to plant cell wall components, mostly monoclonal antibodies, are commercially available from three sources: CarboSource, PlantProbes and Biosupplies.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Sample Preparation for Staining and Immunodetection of Plant Cell Walls by Light Microscopy

Verhertbruggen

Walker

Guillon³

et al. 2017

Front. Plant Sci.

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Staining and immunodetection by light microscopy are methods widely used to investigate plant cell walls. The two techniques have been crucial to study the cell wall architecture in planta, its deconstruction by chemicals or cell wall-degrading enzymes. They have been instrumental in detecting the presence of cell types, in deciphering plant cell wall evolution and in characterizing plant mutants and transformants. The success of immunolabeling relies on how plant materials are embedded and sectioned. Agarose coating, wax and resin embedding are, respectively, associated with vibratome, microtome and ultramicrotome sectioning. Here, we have systematically carried out a comparative analysis of these three methods of sample preparation when they are applied for cell wall staining and cell wall immunomicroscopy. In order to help the plant community in understanding and selecting adequate methods of embedding and sectioning for cell wall immunodetection, we review in this article the advantages and limitations of these three methods. Moreover, we offer detailed protocols of embedding for studying plant materials through microscopy.

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“…Transcriptomic analyses of M. incognita early infection (3 dpi) revealed an important induction of At1g29980 expression, a DUF642 gene ( Barcalá et al, 2010 ). Ten genes of this family are in the Arabidopsis thaliana genome, and the expression of BIIDXI ( BDX , At4g32460 ) and TEEBE ( TEB , At2g41800) are highly induced by auxin in the different root zones ( Salazar-Iribe et al, 2016 ; Zúñiga-Sánchez et al, 2014 ) . In this study, we determined the effect of the inoculation of M. incognita juveniles on the expression and subcellular localization of BDX and TEB in roots from 5-d-old seedlings of A. thaliana .…”

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confidence: 99%

“…The transgenic plants PROBDX::GFP were transformed with a construction that include an 1983 bp fragment upstream BDX ATG, PROTEB::GFP lines include an 890 bp fragment upstream of TEB ATG; at least three independent lines were analyzed showing the same expression pattern. These lines were used for expression analyses while for determination of subcellular localization PROBDX::BDX-GFP and PROTEB::TEB-GFP lines ( Salazar-Iribe et al, 2016 ; Zúñiga-Sánchez et al, 2014 ) were analyzed. The seeds from these transgenic plants and wt plants (col) were germinated after imbibition at 5ºC for 2–3 days and then grown vertically on petri dishes with 0.5 × Murashige and Skoog (MS) basal medium containing 0.5% sucrose and 0.6% agar.…”

mentioning

confidence: 99%

“…BDX and TEB proteins have been detected in cell wall proteomes from different plant tissues, including cell suspension cultures ( Jamet et al, 2006 ). Cell wall localization of these two proteins in epidermal cells from primary roots treated with auxin has also been described ( Salazar-Iribe et al, 2016 ). In non-treated roots, BDX was located intracellularly in cortex and endodermic cells ( Fig.…”

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confidence: 99%

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