SRPP is a protein expressed in seeds and root hairs and is significantly induced in root hairs under phosphate (Pi)-deficient conditions. Root hairs in the knockout mutant srpp-1 display defects, i.e., suppression of cell growth and cell death. Here, we analyzed the expression profile of SRPP during cell elongation of root hairs and compared the transcript levels in several mutants with short root hairs. The mRNA level was increased in wild-type plants and decreased in mutants with short root hairs. Induction of SRPP expression by Pi starvation occurred one or two days later than induction of Pi-deficient sensitive genes, such as PHT1 and PHF1. These results indicate that the expression of SRPP is coordinated with root hair elongation. We hypothesize that SRPP is essential for structural robustness of the cell walls of root hairs.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5647948 | PMC |
| http://dx.doi.org/10.1080/15592324.2017.1368940 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Insights on the Mesembryanthemum forsskalii phenotype and study of the effects of several exogenous plant growth regulators via plant tissue culture.
BMC Plant Biol
January 2025
Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
Background: Samh (Mesembryanthemum forsskalii, M. cryptanthum) belongs to Aizoaceae family and is found in northern Saudi Arabia, primarily in desert or dry shrubland habitats. M.
View Article and Find Full Text PDFLysozyme-coated nanoparticles for active uptake and delivery of synthetic RNA and plasmid-encoded genes in plants.
Nat Plants
January 2025
Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia.
Nanoparticle-mediated delivery of nucleic acids and proteins into intact plants has the potential to modify metabolic pathways and confer desirable traits in crops. Here we show that layered double hydroxide (LDH) nanosheets coated with lysozyme are actively taken up into the root tip, root hairs and lateral root junctions by endocytosis, and translocate via an active membrane trafficking pathway in plants. Lysozyme coating enhanced nanosheet uptake by (1) loosening the plant cell wall and (2) stimulating the expression of endocytosis and other membrane trafficking genes.
View Article and Find Full Text PDFPromoter analysis reveals conserved 30-base-pair core sequences controlling the nonhair-cell preferential expression of WEREWOLF in Arabidopsis.
Biochem Biophys Res Commun
December 2024
Department of Systems Biology, Yonsei University, Seoul, 03722, Republic of Korea. Electronic address:
The root epidermis of Arabidopsis (Arabidopsis thaliana) consists of two distinct cell types: hair (H) cells and non-hair (N) cells, whose patterning is regulated by a network of genes. Among these, the WEREWOLF (WER) gene, encoding an R2R3 MYB transcription factor, acts as a master regulator by promoting the expression of key downstream genes, such as GLABRA2 and CAPRICE. However, the mechanisms controlling WER expression have remained largely unexplored.
View Article and Find Full Text PDFRegulatory mechanisms of trichome and root hair development in Arabidopsis.
Plant Mol Biol
December 2024
Zhejiang Key Lab of Crop Germplasm, Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.
In plants, cell fate determination is regulated temporally and spatially via a complex of signals consisting of a large number of genetic interactions. Trichome and root hair formation are excellent models for studying cell fate determination in plants. Nowadays, the mysteries underlying the reprograming of trichome and root hair and how nature programs the development of trichome and root hair is an interesting topic in the scientific field.
View Article and Find Full Text PDFEffects of drought and salt stress on the root phenotype of wheat seedlings and underlying gene expression analysis.
Front Plant Sci
December 2024
School of Life Science, Yantai University, Yantai, China.
In our previous study, three genes highly expressed in the roots of wheat were screened. To explore the effects of adverse stresses on the wheat root phenotype and the expression of , and , we measured the phenotypic parameters of the JM22 root system at the seedling stage after treatment with different concentrations of NaCl and PEG6000. Additionally, the relative expression levels of TaPSK3, TaPSK9, and TaPSK10 were analyzed via RT-qPCR within 72 h of treatment with 150 mM NaCl and 30% PEG6000.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!