Table 1.
A summary of silicon transport related genes characterized in different plants.
| Species | Silicon Transporter (Acc. No./Gene ID) |
Tissue Localization | Sub-Cellular Localization | Expression Pattern (Si treatment effect) | Spatial Expression | Reference(s) |
|---|---|---|---|---|---|---|
| Channel Type Si-Transporters | ||||||
| Orzya sativa | OsLsi1NSCR (Os02g0745100) | Root (Exodermis and endodermis) | Plasma membrane | Downregulated | Mature roots | [26] |
| Hordium vulgare | HvLsi1 (100301576) | Root (Epidermal, hypodermal and cortex cells) | Plasma membrane | Unaffected | Mature roots | [30] |
| Zea mays L. | ZmLsi1 (542643) | Roots (Epidermal, hypodermal and cortex cells) Polar Localization at distal size Kernel (pericarp, embryo, endosperm) |
Plasma membrane | Unaffected | Immature and Mature roots Immature and Mature Kernels |
[14,46] |
| Triticum aestivum | TaLsi1 (ADM47602) | All tissues of roots and shoots | Plasma membrane | Unaffected | Central Cylinder within the root differentiation zone | [45] |
| Cucumus sativus |
CsiT-1 (Csa017389)CR CsiT-2 (Csa017390)CR |
Roots Leaves Stem Flower |
Plasma membrane | Upregulated | Both mature and young leaves | [44] |
| Cucurbita moschata Duch. | CmLsi1(B+ ) (LOC111441250) | Roots (all root cells) | Plasma membrane | Upregulated | -- | [36] |
| CmLsi1(B-) | Shoot | Endoplasmic reticulum | ||||
| O. sativa | OsLsi6 (Os06g0228200) | Root (All root cells) Shoot |
Plasma membrane | Downregulated | Immature Root Tip | [34] |
| H. vulgare | HvLsi6 (AB447484) | Root (Epidermis and cortex cells) Shoot Leaf blades and sheaths (Parenchyma cells and vascular bundle) |
Plasma membrane | Upregulated | Root Tip (Vegetative growth stage) Nodes (Reproductive growth stage) |
[37] |
| Z. mays L | ZmLsi6 (AMQ98973) | Root (All root cells) Shoot (Xylem parenchyma cells) No polar localizationLeaf sheaths and blades (PL) |
Plasma membrane | Unaffected | [14] | |
| Equistium arvense L. | EaLsi1 (NIP3;1) | Root | Plasma membrane | [95] | ||
| Sorghum bicolor | SbLsi1 | Leaf blade (epidermal cells) | Plasma membrane | [74] | ||
| Cannabis sativa | CsaNIP2-1s PKNIP2-1 (PK09456.1) FNNIP2-1 (FN14156.1) |
Aerial organs (flowers and shoot) | Plasma membrane | [57] | ||
| Efflux Silicon transporters | ||||||
| O. sativa | OsLsi2 (Os03g0107300) | Root Node (Bundle Sheeth Cells) PL |
Plasma membrane | Upregulated | [28] | |
| H. vulgare | HvLsi2 (100502546) | Root Node (Parenchyma Cells) |
Plasma membrane | [37] | ||
| Z. mays L. | ZmLsi2 (541884) | Root | Plasma membrane | [14] | ||
| C. moschata |
CmLsi2-1 (AB551951) CmLsi2-2 (AB551952) |
Root Shoot |
Plasma membrane | Young roots | [35] | |
| O. sativa | OsLsi3 (Os10g0547500) | Node (Parenchyma tissue) | Plasma membrane | Upregulated | [77] | |
| Chrysanthemum (Chrysanthemum X morifolium) | CmLsi2 | [98] | ||||
| E. arvense | EaLsi2-1 | RootShoot | Plasma membrane | [99] | ||
| Glycine max | GmNIP2-1 (Glyma09G238200) | Root | Plasma membrane | Downregulated | -- | [33] |
| G. max | GmNIP2-2 (Glyma18G259500) | Shoot | Plasma membrane | Downregulated | ||
| C. sativus |
CsaLsi21 (PK18630.1/FN08935.1) CsaLsi2-2 (PK08860.1/FN07382.1) CsaLsi2-3 (PK00413.1/FN13891.1) |
Variable expression across plant tissues | Plasma membrane | [57] | ||
CR = Circadian rhythm, NSCR = Not strongly controlled by Circadian rhythm, PL = Polar localization.