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109 results for “root development”
Data from: Deforestation and coca cultivation rooted in twentieth-century development projects
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Data from: Effects of species diversity on fine root productivity increase with stand development and associated mechanisms in a boreal forest
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Data from: Fine root dynamics in a developing Populus deltoides plantation
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Data from: The quiescent centre of the root apical meristem: Conceptual developments from Clowes to modern times
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Data from: Plasticity in root symbioses following shifts in soil nutrient availability during long-term ecosystem development
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Data from: Root-lesion nematodes suppress cabbage aphid population development by reducing aphid daily reproduction
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Data from: The bHLH family member ZmPTF1 regulates drought tolerance in maize by promoting root development and ABA synthesis
Drought stress is the most important environmental stress limiting maize production. ZmPTF1, a phosphate starvation-induced basic helix-loop-helix (bHLH) transcription factor (TF), contributes to root development and low-phosphate tolerance in maize. In this paper, ZmPTF1 expression, drought tolerance and the underlying mechanisms were studied by using maize ZmPTF1 overexpression lines and mutants. ZmPTF1 was found to be a positive regulator of root development, ABA synthesis, signalling pathways and drought tolerance. ZmPTF1 was also found to bind to the G-box element within the promoter of 9-cis-epoxycarotenoid dioxygenase (NCED), C-repeat-binding factor (CBF4), ATAF2/NAC081, NAC30 and other TFs and act as a positive regulator of the expression of those genes. The dramatically upregulated NCEDs led to increased ABA synthesis and activation of the ABA signalling pathway. The upregulated TFs hierarchically regulate the expression of the genes involved in root development, stress responses and modifications of transcriptional regulation. The improved root system; increased ABA content; and activated ABA-, CBF4-, ATAF2- and NAC30-mediated stress responses increased the drought tolerance of the ZmPTF1 overexpression lines, while the mutants showed opposite trends. This study describes a useful gene for transgenic breeding and helps us understand the role of a bHLH protein in plant root development and stress responses.
Data from: Conserved gene expression programs in developing roots from diverse plants
The molecular basis for the origin and diversification of morphological adaptations is a central issue in evolutionary developmental biology. Here, we defined temporal transcript accumulation in developing roots from seven vascular plants, permitting a genome-wide comparative analysis of the molecular programs used by a single organ across diverse species. The resulting gene expression maps uncover significant similarity in the genes employed in roots and their developmental expression profiles. The detailed analysis of a subset of 133 genes known to be associated with root development in Arabidopsis thaliana indicates that most of these are used in all plant species. Strikingly, this was also true for root development in a lycophyte (Selaginella moellendorffii), which forms morphologically different roots and is thought to have evolved roots independently. Thus, despite vast differences in size and anatomy of roots from diverse plants, the basic molecular mechanisms employed during root formation appear to be conserved. This suggests that roots evolved in the two major vascular plant lineages either by parallel recruitment of largely the same developmental program or by elaboration of an existing root program in the common ancestor of vascular plants.
Figure 3 in Aquatic insects in the forest canopy: a new genus of moth flies (Diptera: Psychodidae) developing in slime on aerial roots
Figure 3. Habitus of Mucomyia emersa male, head and abdomen removed.
Figure 2 in Aquatic insects in the forest canopy: a new genus of moth flies (Diptera: Psychodidae) developing in slime on aerial roots
Figure 2. Habitus of Mucomyia emersa larvae in plant mucilage.
Data from: Root:shoot ratio in developing seedlings: how seedlings change their allocation in response to seed mass and ambient nutrient supply
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Data from: Conserved gene expression programs in developing roots from diverse plants
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Data from: The bHLH family member ZmPTF1 regulates drought tolerance in maize by promoting root development and ABA synthesis
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Data from: The roles of interspecific variability in seed mass and soil resource availability in root system development
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During development the Sku6 mutant roots engage different genes than wild type Col-0 roots either on the ground or in spaceflight.
The wild type Col-0 plants and the Sku-6 mutant plants of the Col-0 background were germinated on ISS or on the ground and the gene expression profiles in roots at 4 days or 8 days were established. The Sku6 gene (At2g03680) codes for a protein that localizes to microtubule within the cortical array and putatively acting as an intramolecular linker. The development of Col-0 and Sku-6 plants on orbit differs from that on the ground as demonstrated by the comparison of the gene expression profiles between 4 days old to 8 days old plant in the two environments. However the development of Sku-6 mutant plants also differs from Col-0 at either age and in either environment suggesting the role of the genetic background in these developmental decisions. The 4 days old Sku-6 roots in orbit engaged more genes than the 4 days old Col-0 roots in orbit but also more than the 4 days old Sku-6 roots on the ground. Overall the 4 days old roots differentially expressed more genes in spaceflight relative to ground than the 8 days old roots of either genotype.
During development the Sku5 mutant roots engage different genes than wild type WS roots either on the ground or in spaceflight.
The wild type WS plants and the Sku5 mutant plants in the WS background were germinated on ISS or on the ground and the gene expression profiles in roots at 4 days or 8 days were established. The Sku5 gene (AT4G12420) codes for a multi-copper oxidase-like protein SKU5 protein that is involved in directed root tip growth. The Sku5 protein is glycosylated GPI-anchored and localizes to the plasma membrane and the cell wall. The Sku5 gene is expressed most strongly in expanding tissues. The development of WS and Sku5 plants on orbit differs from that on the ground as demonstrated by the comparison of the gene expression profiles between 4 days old to 8 days old plant in the two environments. However the development of Sku5 mutant plants also differs from WS at either age and in either environment suggesting the role of the genetic background in these developmental decisions. The 4 days old Sku5 roots in orbit engaged substantially more genes than the 4 days old WS roots in orbit but also more than the 4 days old Sku5 roots on the ground. Overall the 4 days old roots differentially expressed more genes in spaceflight relative to ground than the 8 days old roots of either genotype. Finally the 4 days old Sku5 roots in orbit differ in 862 genes from the 8 days Sku5 roots in orbit while on the ground there is merely half of the number of genes differentially expressed between the 4 days and 8 days developmental stages of the Sku5 roots. APEX03-2 (Advanced Plant Experiment 03-2) also identified as TAGES-Isa (Transgenic Arabidopsis Gene Expression System xe2 x80 x94Intracellular Signaling Architecture) was launched on SpaceX mission CRS-5 on 10 January 2015. Dry sterilized Arabidopsis seeds were planted aseptically on the surface of 10-cm2 solid media plates and remained dormant until removed from cold stowage and exposed to light at the initiation of the experiment on the ISS (International Space Station). The plates were grown in the Vegetable Production System (VPS/Veggie) hardware on the Columbus Module of the ISS with the overhead LED lighting of the VPS. At four or for the second experimental set at eight days seedlings were harvested by an astronaut into KFT (Kennedy Fixation Tube) containing RNAlater solutions. Upon return to Earth the harvested material was used to compare the transcriptomes of each genotype and each age using RNAseq technology. The patterns of gene expression was compared between treatments (spaceflight versus ground control) within each genotype of same age or between two ages within same genotype and within same treatment. For 4 day old roots 5-8 roots were combined to serve as one biological replica. For 8 day old roots 2-3 roots were used to form one biological replica. In each case the four biological replicas were used for the transcriptomic analysis.
Action of microgravity on root development
Arabidopsis were grown on horizontal or vertical clinostat for 4 8 or 12 days. Seedlings on horizontal clinostat were in simulated microgravity and seedlings on vertical clinostat are considered as a control. Comparison was made between plants grown on simulated microgravitry and vertical position. 6 dye-swap - treated vs untreated comparison
The soil microbiome reduces Striga infection in sorghum by modulation of host-derived signaling molecules and root development
GEO Series GSE216351. Sorghum bicolor. 31 samples. Type: Expression profiling by high throughput sequencing.
Ror2-mediated non-canonical Wnt signaling regulates Cdc42 and cell proliferation during root development
GEO Series GSE161395. Mus musculus. 6 samples. Type: Expression profiling by high throughput sequencing.
RNA-Seq time-series of Adventitious root development in Populus ussuriensis
GEO Series GSE135804. Populus ussuriensis. 18 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.