A silicon transporter in rice

@article{Ma2006AST,
  title={A silicon transporter in rice},
  author={Jian Feng Ma and Kazunori Tamai and Naoki Yamaji and Namiki Mitani and Saeko Konishi and Maki Katsuhara and Masaji Ishiguro and Yoshiko Murata and Masahiro Yano},
  journal={Nature},
  year={2006},
  volume={440},
  pages={688-691}
}
Silicon is beneficial to plant growth and helps plants to overcome abiotic and biotic stresses by preventing lodging (falling over) and increasing resistance to pests and diseases, as well as other stresses. [...] Key Result This gene belongs to the aquaporin family and is constitutively expressed in the roots. Lsi1 is localized on the plasma membrane of the distal side of both exodermis and endodermis cells, where casparian strips are located. Suppression of Lsi1 expression resulted in reduced silicon uptake…Expand
An efflux transporter of silicon in rice
TLDR
A previously uncharacterized gene is described, low silicon rice 2 (Lsi2), which has no similarity to Lsi1 and is constitutively expressed in the roots and revealed a unique mechanism of nutrient transport in plants: having an influx transporter on one side and an efflux transporter on the other side of the cell to permit the effective transcellular transport of the nutrients. Expand
Functions and transport of silicon in plants
TLDR
Coupling of Lsi1 with Lsi2 is required for efficient uptake of Si in rice as well as an efflux transporter responsible for the transport of Si from the root cells to the apoplast. Expand
Silicon transporters in higher plants.
  • J. Ma
  • Biology, Medicine
  • Advances in experimental medicine and biology
  • 2010
TLDR
Recently both influx (Lsil) and efflux (Lsi2) transporters for silicic acid have been identified in gramineous plants including rice, barley and maize, and cell-specificity of localization of Si transporter and expression patterns are different between species. Expand
A Transporter Regulating Silicon Distribution in Rice Shoots[W]
TLDR
Results indicate that Lsi6 is a transporter responsible for the transport of Si out of the xylem and subsequently affects the distribution of Si in the Leaf, which helps plants to overcome biotic and abiotic stresses. Expand
Transport of silicon from roots to panicles in plants
TLDR
Silicon in the xylem sap is presented in the form of monosilicic acid and is unloaded by Lsi6, a homolog of Lsi1 in rice, who is involved in the inter-vascular transfer of Si at the node, which is necessary for preferential Si distribution to the panicles. Expand
Linking transport system of silicon with its accumulation in different plant species
ABSTRACT Silicon (Si) is a beneficial element for plants, which helps to mitigate various biotic and abiotic stresses. Since the last review on Si published in this journal in 2004, great progressExpand
Isolation and functional characterization of an influx silicon transporter in two pumpkin cultivars contrasting in silicon accumulation.
TLDR
The results indicate that the difference in Si uptake between two pumpkin cultivars is probably the result of allelic variation in one amino acid residue of the Si influx transporter, which affects the subcellular localization and subsequent transport of Si from the external solution to the root cells. Expand
Significance and Role of Si in Crop Production
Abstract Silicon is a beneficial plant nutrient, and yield responses to its application on Si-deficient soils have been frequently demonstrated in Si-accumulator crops such as rice, sugarcane, maize,Expand
Further characterization of a rice silicon efflux transporter, Lsi2
TLDR
The expression of Lsi2 gene was down-regulated by Si in the wild-type rice, but unaffected in the lsi2 mutant, suggesting that the expression ofLsi2 is regulated by Si accumulated in the shoots, according to analysis with promoter-GFP transgenic rice. Expand
HvLsi1 is a silicon influx transporter in barley.
TLDR
Observations indicate that HvLsi1 is a silicon influx transporter that is involved in radial transport of Si through the epidermal and cortical layers of the basal roots of barley. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 31 REFERENCES
Characterization of the Silicon Uptake System and Molecular Mapping of the Silicon Transporter Gene in Rice1
TLDR
The results indicate that at least two transporters are involved in silicon transport from the external solution to the xylem and that the low-silicon rice mutant is defective in loading silicon into xylesm rather than silicon uptake from external solutions to cortical cells. Expand
Got silicon? The non-essential beneficial plant nutrient.
TLDR
With the complete sequence of the genomes for a dicot and a monocot available for large-scale genetic analysis, the future bodes well for a more complete understanding of the biological role of silicon and its mode of transport into and through plants. Expand
Role of silicon in enhancing the resistance of plants to biotic and abiotic stresses
TLDR
The role of Si in conferring resistance to mutiple stresses is described and genetic modification of the root ability to take up Si has been proposed to obtain plants resistant to multiple stresses. Expand
Role of root hairs and lateral roots in silicon uptake by rice.
TLDR
Results clearly indicate that lateral roots contribute to the Si uptake in rice plant, whereas root hairs do not, and that the gene controlling formation of lateral roots and Si uptake is a dominant gene. Expand
Silicon and plant disease resistance against pathogenic fungi.
TLDR
Silicon possesses unique biochemical properties that may explain its bioactivity as a regulator of plant defense mechanisms, and may interact with several key components of plant stress signaling systems leading to induced resistance. Expand
A Rice Mutant Defective in Si Uptake1
TLDR
Analysis of F2 populations between GR1 and WT showed that roots with high Si uptake and roots with low Si uptake segregated at a 3:1 ratio, suggesting that GR1 is a recessive mutant of Si uptake. Expand
Silicon in agriculture
Chapter 1. Silicon in plants: Facts vs. concepts. Chapter 2. Silicon as a beneficial element for crop plants. Chapter 3. Silicon transport at the cell and tissue level. Chapter 4. A primer on theExpand
Identification of the silicon form in xylem sap of rice (Oryza sativa L.).
TLDR
Results indicate that Si is translocated in the form of monosilicic acid through the xylem and that the concentration of monOSilicic Acid is high in the Xylem only transiently. Expand
Chapter 3 Silicon transport at the cell and tissue level
The predominant silicon (Si) compound in the soil solution is silicic acid, and the baseline condition for Si transport into and within a plant with no membrane channels or transporters which canExpand
The anomaly of silicon in plant biology.
  • E. Epstein
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences of the United States of America
  • 1994
TLDR
Ample evidence is presented that silicon, when readily available to plants, plays a large role in their growth, mineral nutrition, mechanical strength, and resistance to fungal diseases, herbivory, and adverse chemical conditions of the medium. Expand
...
1
2
3
4
...