The IRREGULAR TRICHOME BRANCH loci regulate trichome elongation in Arabidopsis
نویسندگان
چکیده
منابع مشابه
Genetic control of trichome branch number in Arabidopsis: the roles of the FURCA loci.
We are using trichome (hair) morphogenesis as a model to study how plant cell shape is controlled. During a screen for new mutations that affect trichome branch initiation in Arabidopsis, we identified seven new mutants that show a reduction in trichome branch number from three branches to two. These mutations were named furca, after the Latin word for two-pronged fork. These seven recessive mu...
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In Arabidopsis, the timing and spatial arrangement of trichome initiation is tightly regulated and requires the activity of the GLABROUS1 (GL1) gene. The COTYLEDON TRICHOME 1 (COT1) gene affects trichome initiation during late stages of leaf development and is described in this article. In the wild-type background, cot1 has no observable effect on trichome initiation. GL1 overexpression in wild...
متن کاملThe Arabidopsis STICHEL gene is a regulator of trichome branch number and encodes a novel protein.
Here, we analyze the STICHEL (STI) gene, which plays an important role in the regulation of branch number of the unicellular trichomes in Arabidopsis. We have isolated the STI locus by positional cloning and confirmed the identity by sequencing seven independent sti alleles. The STI gene encodes a protein of 1,218 amino acid residues containing a domain with sequence similarity to the ATP-bindi...
متن کاملThe control of trichome spacing and number in Arabidopsis.
Arabidopsis trichomes are single-celled epidermal hairs that serve as a useful model for the study of plant cell differentiation. An examination of the distribution of trichomes early in their development revealed that developing trichomes occur adjacent to another trichome much less frequently than would be expected by chance. Clonal analysis of epidermal cell lineages ruled out a role for cel...
متن کاملFunctionally homologous WRKY proteins regulate vacuolar acidification in petunia and trichome development in Arabidopsis
In petunia, loci PH1 to PH7 are involved in an unknown vacuolar acidification pathway since disruption of these loci results in an increased vacuolar pH and bluish flowers. PH4 encodes a MYB protein, which regulates, together with regulators of the anthocyanin biosynthesis pathway (AN1, AN2 and AN11), the transcription of (unknown) structural genes involved in vacuolar acidification. Here we sh...
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ژورنال
عنوان ژورنال: Plant and Cell Physiology
سال: 2005
ISSN: 1471-9053,0032-0781
DOI: 10.1093/pcp/pci168