TAPETUM DETERMINANT1 Is Required for Cell Specialization in the Arabidopsis Anther
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چکیده
منابع مشابه
Transcription factor AtMYB103 is required for anther development by regulating tapetum development, callose dissolution and exine formation in Arabidopsis.
Downregulation of the transcription factor AtMYB103 using transgenic technology results in early tapetal degeneration and pollen aberration during anther development in Arabidopsis thaliana. This paper describes the functional analysis of the AtMYB103 gene in three knock-out mutants. Two male sterile mutants, ms188-1 and ms188-2, were generated by ethyl-methane sulfonate (EMS) mutagenesis. A ma...
متن کاملOverexpression of TAPETUM DETERMINANT1 alters the cell fates in the Arabidopsis carpel and tapetum via genetic interaction with excess microsporocytes1/extra sporogenous cells.
Previously, we reported that the TAPETUM DETERMINANT1 (TPD1) gene is required for specialization of tapetal cells in the Arabidopsis (Arabidopsis thaliana) anther. The tpd1 mutant is phenotypically identical to the excess microsporocytes1 (ems1)/extra sporogenous cells (exs) mutant. The TPD1 and EMS1/EXS genes may function in the same developmental pathway in the Arabidopsis anther. Here, we fu...
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In eukaryotes, vesicle trafficking is regulated by the small monomeric GTPases of the Rab protein family. Rab11, (a subfamily of the Ypt/Rab gene family) an evolutionarily conserved, ubiquitously expressed subfamily of small monomeric Rab GTPases, has been implicated in regulating vesicular trafficking through the recycling of endosomal compartment. In an earlier communication, we have shown th...
متن کاملSpecification of tapetum and microsporocyte cells within the anther.
Flowering plants form male reproductive cells (microsporocytes) during sporophytic generation, which subsequently differentiate into multicellular male gametes in the gametophytic generation. The tapetum is a somatic helper tissue neighboring microsporocytes and supporting gametogenesis. The mechanism controlling the specification of the tapetum and microsporocyte cell fate within the anther ha...
متن کاملAn Arabidopsis flavonoid transporter is required for anther dehiscence and pollen development
FLOWER FLAVONOID TRANSPORTER (FFT) encodes a multidrug and toxin efflux family transporter in Arabidopsis thaliana. FFT (AtDTX35) is highly transcribed in floral tissues, the transcript being localized to epidermal guard cells, including those of the anthers, stigma, siliques and nectaries. Mutant analysis demonstrates that the absence of FFT transcript affects flavonoid levels in the plant and...
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ژورنال
عنوان ژورنال: The Plant Cell
سال: 2003
ISSN: 1040-4651,1532-298X
DOI: 10.1105/tpc.016618