Limits...
The paralogous R3 MYB proteins CAPRICE, TRIPTYCHON and ENHANCER OF TRY AND CPC1 play pleiotropic and partly non-redundant roles in the phosphate starvation response of Arabidopsis roots.

Chen CY, Schmidt W - J. Exp. Bot. (2015)

Bottom Line: The data show that in an intricate interplay between the three MYBs regulate several developmental, physiological and metabolic processes that are putatively located in different tissues.Control of gene activity is partly mediated through the regulation of potential antisense transcripts.The current dataset extends the known functions of R3 MYB proteins, provides a suite of novel candidates with critical function in root hair development under both control and Pi-deficient conditions, and challenges the definition of genetic redundancy by demonstrating that environmental perturbations may confer specific functions to orthologous proteins that could have similar roles under control conditions.

View Article: PubMed Central - PubMed

Affiliation: Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan, and National Chung-Hsing University, Taichung, Taiwan Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung, Taiwan.

No MeSH data available.


Related in: MedlinePlus

Root hair phenotypes of the wild type and mutants. (A) Root hair number. (B) Root hair length. (C) Compiled confocal micrographs of the various genotypes. The number of asterisks denotes statistically significant differences to Pi-replete wild-type plants based on Student’s t-test (* P<0.05, ** P<0.01, *** P<0.001). Bar, 100 μM.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
getmorefigures.php?uid=PMC4507782&req=5

Figure 1: Root hair phenotypes of the wild type and mutants. (A) Root hair number. (B) Root hair length. (C) Compiled confocal micrographs of the various genotypes. The number of asterisks denotes statistically significant differences to Pi-replete wild-type plants based on Student’s t-test (* P<0.05, ** P<0.01, *** P<0.001). Bar, 100 μM.

Mentions: As described previously, homozygous mutations in CPC caused a dramatic reduction in root hair density (Fig. 1A, C; Kirik et al., 2004a). In the present investigation, root hair frequency in cpc was reduced by 89% and also the root hair length was strongly decreased (Fig. 1A, B). Under control (Pi-replete) conditions, no root hair phenotype was observed for etc1 plants. In roots of try, the number of root hairs was reduced by 23% relative to the wild type, but root hairs were ~2-fold longer than those of wild-type plants.


The paralogous R3 MYB proteins CAPRICE, TRIPTYCHON and ENHANCER OF TRY AND CPC1 play pleiotropic and partly non-redundant roles in the phosphate starvation response of Arabidopsis roots.

Chen CY, Schmidt W - J. Exp. Bot. (2015)

Root hair phenotypes of the wild type and mutants. (A) Root hair number. (B) Root hair length. (C) Compiled confocal micrographs of the various genotypes. The number of asterisks denotes statistically significant differences to Pi-replete wild-type plants based on Student’s t-test (* P<0.05, ** P<0.01, *** P<0.001). Bar, 100 μM.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4507782&req=5

Figure 1: Root hair phenotypes of the wild type and mutants. (A) Root hair number. (B) Root hair length. (C) Compiled confocal micrographs of the various genotypes. The number of asterisks denotes statistically significant differences to Pi-replete wild-type plants based on Student’s t-test (* P<0.05, ** P<0.01, *** P<0.001). Bar, 100 μM.
Mentions: As described previously, homozygous mutations in CPC caused a dramatic reduction in root hair density (Fig. 1A, C; Kirik et al., 2004a). In the present investigation, root hair frequency in cpc was reduced by 89% and also the root hair length was strongly decreased (Fig. 1A, B). Under control (Pi-replete) conditions, no root hair phenotype was observed for etc1 plants. In roots of try, the number of root hairs was reduced by 23% relative to the wild type, but root hairs were ~2-fold longer than those of wild-type plants.

Bottom Line: The data show that in an intricate interplay between the three MYBs regulate several developmental, physiological and metabolic processes that are putatively located in different tissues.Control of gene activity is partly mediated through the regulation of potential antisense transcripts.The current dataset extends the known functions of R3 MYB proteins, provides a suite of novel candidates with critical function in root hair development under both control and Pi-deficient conditions, and challenges the definition of genetic redundancy by demonstrating that environmental perturbations may confer specific functions to orthologous proteins that could have similar roles under control conditions.

View Article: PubMed Central - PubMed

Affiliation: Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan Molecular and Biological Agricultural Sciences Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan, and National Chung-Hsing University, Taichung, Taiwan Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung, Taiwan.

No MeSH data available.


Related in: MedlinePlus