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The Arabidopsis thaliana MYB26/MALE STERILE35 (MS35) gene is critical for the development of secondary thickening in the anther endothecium and subsequent dehiscence. MYB26 is localized to the nucleus and regulates endothecial development and secondary thickening in a cell-specific manner in the anther. MYB26 expression is seen in anthers and also in the style and nectaries, although there is no effect on female fertility in the ms35 mutant. MYB26 expression in anthers occurs early during endothecial development, with maximal expression during pollen mitosis I and bicellular stages, indicating a regulatory role in specifying early endothecial cell development. Overexpression of MYB26 results in ectopic secondary thickening in both Arabidopsis and tobacco (Nicotiana tabacum) plants, predominantly within the epidermal tissues. MYB26 regulates a number of genes linked to secondary thickening, including IRREGULAR XYLEM1 (IRX1), IRX3, IRX8, and IRX12. Changes in expression were also detected in two NAC domain genes, NAC SECONDARY WALL-PROMOTING FACTOR1 (NST1) and NST2, which have been linked to secondary thickening in the anther endothecium. These data indicate that MYB26 regulates NST1 and NST2 expression and in turn controls the process of secondary thickening. Therefore, MYB26 appears to function in a regulatory role involved in determining endothecial cell development within the anther and acts upstream of the lignin biosynthesis pathway.

Titel:	Arabidopsis MYB26/MALE STERILE35 regulates secondary thickening in the endothecium and is essential for anther dehiscence.
Autor/in / Beteiligte Person:	Yang, C ; Xu, Z ; Song, J ; Conner, K ; Vizcay Barrena, G ; Wilson, ZA
Zeitschrift:	The Plant cell, Jg. 19 (2007-02-01), Heft 2, S. 534-48
Veröffentlichung:	2021- : [Oxford] : Oxford University Press ; <i>Original Publication</i>: Rockville, MD : American Society of Plant Physiologists, c1989-, 2007
Medientyp:	academicJournal
ISSN:	1040-4651 (print)
DOI:	10.1105/tpc.106.046391
Schlagwort:	Arabidopsis Proteins genetics Gene Expression Regulation, Plant Lignin metabolism Molecular Sequence Data Mutation Phenotype Plants, Genetically Modified Recombinant Fusion Proteins genetics Recombinant Fusion Proteins metabolism Nicotiana anatomy & histology Nicotiana physiology Transcription Factors genetics Arabidopsis anatomy & histology Arabidopsis physiology Arabidopsis Proteins metabolism Flowers cytology Flowers physiology Transcription Factors metabolism
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article; Research Support, Non-U.S. Gov't Language: English [Plant Cell] 2007 Feb; Vol. 19 (2), pp. 534-48. <i>Date of Electronic Publication: </i>2007 Feb 28. MeSH Terms: Arabidopsis* / anatomy & histology ; Arabidopsis* / physiology ; Flowers* / cytology ; Flowers* / physiology ; Arabidopsis Proteins / metabolism ; Transcription Factors / metabolism ; Arabidopsis Proteins / genetics ; Gene Expression Regulation, Plant ; Lignin / metabolism ; Molecular Sequence Data ; Mutation ; Phenotype ; Plants, Genetically Modified ; Recombinant Fusion Proteins / genetics ; Recombinant Fusion Proteins / metabolism ; Nicotiana / anatomy & histology ; Nicotiana / physiology ; Transcription Factors / genetics References: Curr Opin Plant Biol. 2001 Oct;4(5):447-56. (PMID: 11597504) ; New Phytol. 1990 Jun;115(2):367-375. (PMID: 33873953) ; Curr Biol. 2001 Dec 11;11(24):1914-22. (PMID: 11747817) ; Phytochemistry. 2004 Apr;65(7):783-92. (PMID: 15081277) ; Plant Cell. 1994 May;6(5):751-759. (PMID: 12244256) ; Plant Cell. 1996 Sep;8(9):1519-32. (PMID: 8837506) ; Proc Natl Acad Sci U S A. 2003 Feb 4;100(3):1450-5. (PMID: 12538856) ; Plant J. 2003 May;34(4):519-28. (PMID: 12753590) ; Plant J. 2002 Jul;31(1):1-12. (PMID: 12100478) ; Planta. 2006 May;223(6):1191-200. (PMID: 16322983) ; Plant J. 2003 Dec;36(6):743-54. (PMID: 14675440) ; Plant J. 1999 Apr;18(1):77-88. (PMID: 10341445) ; Plant Physiol. 1994 May;105(1):35-45. (PMID: 8029357) ; Plant Cell. 1999 May;11(5):769-80. (PMID: 10330464) ; Plant Physiol. 2006 Feb;140(2):499-511. (PMID: 16384897) ; Plant Mol Biol. 2004 Sep;56(2):255-70. (PMID: 15604742) ; Plant J. 1998 Dec;16(6):735-43. (PMID: 10069079) ; Planta. 2002 Nov;216(1):187-92. (PMID: 12430030) ; Plant J. 2001 Oct;28(1):27-39. (PMID: 11696184) ; Development. 1998 Feb;125(3):521-31. (PMID: 9425146) ; Science. 1998 May 15;280(5366):1091-4. (PMID: 9582125) ; New Phytol. 1987 Mar;105(3):487-498. (PMID: 33873908) ; Plant Physiol. 2005 Jun;138(2):803-18. (PMID: 15923329) ; Plant J. 2004 Dec;40(6):979-95. (PMID: 15584962) ; Genes Dev. 2005 Aug 15;19(16):1855-60. (PMID: 16103214) ; Plant Cell. 2005 Aug;17(8):2281-95. (PMID: 15980264) ; New Phytol. 2005 Oct;168(1):123-40. (PMID: 16159327) ; J Exp Bot. 2006;57(11):2709-17. (PMID: 16908508) ; Plant Physiol. 2003 Nov;133(3):1051-71. (PMID: 14612585) ; EMBO J. 2000 Nov 15;19(22):6150-61. (PMID: 11080161) ; Plant J. 2005 Aug;43(4):553-67. (PMID: 16098109) ; Plant Cell. 1998 Feb;10(2):135-54. (PMID: 9490739) ; New Phytol. 2004 Oct;164(1):17-30. (PMID: 33873487) ; Proc Natl Acad Sci U S A. 2000 Sep 12;97(19):10625-30. (PMID: 10973494) ; Plant Cell. 1997 May;9(5):689-701. (PMID: 9165747) ; Plant Cell. 2000 Dec;12(12):2383-2394. (PMID: 11148285) ; Plant J. 1999 Aug;19(3):269-78. (PMID: 10476074) ; Plant J. 2006 Jun;46(6):984-1008. (PMID: 16805732) ; Plant Cell. 2005 Nov;17(11):2993-3006. (PMID: 16214898) ; Plant Cell. 2000 Jul;12(7):1041-61. (PMID: 10899973) ; Plant Physiol. 2001 Aug;126(4):1738-53. (PMID: 11500571) ; Plant Cell. 1993 Oct;5(10):1217-29. (PMID: 8281038) ; Plant Cell. 2001 Oct;13(10):2191-209. (PMID: 11595796) ; Trends Plant Sci. 2002 May;7(5):193-5. (PMID: 11992820) ; Methods. 2001 Dec;25(4):402-8. (PMID: 11846609) ; Plant Cell. 1997 Jul;9(7):1147-1156. (PMID: 12237380) ; EMBO J. 1994 Jan 1;13(1):128-37. (PMID: 8306956) Grant Information: BBS/B/09635 United Kingdom BB_ Biotechnology and Biological Sciences Research Council Substance Nomenclature: 0 (Arabidopsis Proteins) ; 0 (MYB26 protein, Arabidopsis) ; 0 (Recombinant Fusion Proteins) ; 0 (Transcription Factors) ; 9005-53-2 (Lignin) Entry Date(s): Date Created: 20070303 Date Completed: 20070727 Latest Revision: 20240316 Update Code: 20240316 PubMed Central ID: PMC1867336

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Arabidopsis MYB26/MALE STERILE35 regulates secondary thickening in the endothecium and is essential for anther dehiscence.