NOTE FROM THE FOUNDATION RECORDS AND INFORMATION SECURITY ADMINISTRATION
The report you are currently viewing is the first edition.
Dr. Moriyama's version as of 26 June 2026 18:05 (UTC) on his version
The contents may differ significantly from the current version.
— Maria Jones, RAISA Director
The paddy field where SCP-1150-JP was first confirmed
Item Number: SCP-1150-JP
Object Class: Keter (provisional)
Special Containment Procedures: SCP-1150-JP is allowed to be destroyed once it is discovered to prevent further spread. The effectiveness of the administration of herbicides to SCP-1150-JP's growth soil and the light shielding of SCP-1150-JP itself has not been determined, and active verification is required.
If SCP-1150-JP is successfully secured, it is to be contained in the Plant Containment Cell at Site-8102. If excessive growth of SCP-1150-JP is confirmed, please try to destroy it as much as possible.
Description: SCP-1150-JP is an extremely invasive plant group that exhibits high fecundity and resistance to destruction. At the time of writing, rice (Oryza sativa), pampas grass (Miscanthus sinensis), and green foxtail (Setaria viridis) have been identified. SCP-1150-JP has multiple adaptations that achieve strong invasiveness. Notable traits include the development of highly elongating rhizomes, the inclusion of unidentified elements in the primary cell wall and associated structures, and the accumulation of enormous amounts of silicate compounds on the epidermis.
SCP-1150-JP morphological outline
1. Rhizome
SCP-1150-JP has an underground rhizome that runs horizontally with gravity. This rhizome is considered to have a homologous relationship with that found in some grasses such as pampas grass and wild rice (O. longistaminata). In general plants, the rhizome contributes to avoiding dry and cold environments, and is considered to be a growth mode suitable for plant proliferation.
SCP-1150-JP reproduces vegetatively at an abnormal speed through underground stems, and explosively expands its growth range. The maximum elongation rate of rhizomes has been estimated at ██ m/day, which is similar to the non-anomalous invasive plants that also utilize rhizomes such as Kudzu (Pueraria montana) and Longhorn (Alternanthera). philoxeroides) growth rate. The underground stem of SCP-1150-JP extends while penetrating and crushing obstacles such as asphalt and concrete due to growth stress, and at the time of writing this article, extensive damage to road surfaces and houses has been reported.
2. Cell Wall
General primary cell wall expansion model of a plant cell. Two types of reticular polysaccharide structures are shown: pectic polysaccharides (orange) and cellulose microfibers (light blue) with crosslinked glycans (green).
The primary cell walls of common plants are composed of polysaccharides, and the following two types of network structures, which are mainly composed of polysaccharides, coexist.
- Cellulose fibrils and cross-linked glycans
- pectins
Glycans and pectins are heterogeneous polysaccharides with branched structures, whereas cellulose polymerizes two β-glucose residues repeatedly as one unit to form chain molecules with less branching. Cellulose and cross-linked glycans contribute to tensile strength, and pectin contributes to compressive strength.
An energy dispersive X-ray spectrometer has confirmed the presence of unidentified elements of unknown origin in the cell walls of SCP-1150-JP. It is presumed that the new element combines with the above-mentioned structural polysaccharide and converts the originally hydrogen-bonded cross-links into high-energy covalent bonds. For this reason, each fiber that makes up the cell wall is reinforced, and it is believed that SCP-1150-JP is endowed with resistance to destruction. As of June 26th, 2026, attempts to harvest SCP-1150-JP have been unsuccessful, except for the use of SCP-143.
In addition, the cellulose-like fine fibers of SCP-1150-JP are modified with chemical groups containing new elements. For this reason, the cellulose-like fibers show properties that are partially similar to chitin in crustaceans, and are resistant to cellulase, a cellulolytic enzyme. In addition to this, many other chemical properties have been changed by SCP-1150-JP-A and the stability has been increased, and as of June 26, 2026, chemicals capable of degrading SCP-1150-JP cell walls has not been confirmed.
3. Silica coating
Approximately █.█ times more amorphous silicon dioxide (silica) accumulates inside and outside the epidermal cells of the roots, stems, and leaves of SCP-1150-JP than in non-abnormal rice plants, and this is the main component. A vitrified structure is formed. The silica is exchanged with internal sodium ions by adding potassium ions derived from plant tissue. Potassium ions, which have a large ionic radius, strengthen the atomic structure of glass, so it is presumed that tempered glass with unusual toughness is formed through the above process. In addition, it is thought that the thermal expansion coefficient of the glass is lowered due to the inclusion of impurities in the plant body, and heat resistance is acquired. For this reason, the silica layer of SCP-1150-JP functions as heat-resistant tempered glass, contributing to physical biological defense and cell enhancement. Attempts to incinerate SCP-1150-JP have been unsuccessful.
It has also been suggested that SCP-1150-JP is resistant to environments unsuitable for the growth of common grasses. Assuming that silica has a mechanism similar to that of non-anomalous rice, the large amount of silica in SCP-1150-JP inhibits sodium absorption and transpiration, and maintains the salt concentration in the body even in salt-rich soil. can be considered. In addition, silica has biochemical effects such as inhibiting the absorption of excess manganese and promoting the uptake of carbon dioxide, so it is speculated that it increases the comprehensive environmental adaptability of SCP-1150-JP.
On June 26, 2026, a whole genome analysis using SCP-1150-JP samples collected using SCP-143 detected differences in the base sequences of SCP-1150-JP and non-anomalous grasses. did not. For this reason, it is speculated that SCP-1150-JP undergoes so-called epigenetic mutation without mutation of the base sequence itself. In non-abnormal grasses, underground stem elongation is regulated by the BOP gene and root silicic acid uptake is regulated by the Lsi1 gene. Common For this reason, it is thought that the abnormalities of SCP-1150-JP are caused by changes in the expression of these genes rather than the genes themselves, which does not contradict this hypothesis.
Discovery process: Around 8:00 am on June 26, 2026, a traffic accident occurred in Mizushima, Kurashiki City, Okayama Prefecture. The incident caught the attention of the Foundation, which intercepted the Okayama Prefectural Police's radio, and an investigation on the same day confirmed the rapid expansion and improved durability of the rice plant. In view of the expansion, the Foundation designated the rice plant in question as SCP-1150-JP, applied the cover story "removal of unexploded ordnance" and "gas leak" and sealed off the surrounding area at 9:15 am.
At 10:11 a.m., workers attempting to exterminate SCP-1150-JP reported green foxtails and pampas grass showing similar anomalies in non-adjacent paddy fields. It is highly probable that undiscovered instances of SCP-1150-JP exist. Paddy rice is widely cultivated in Japan, and many wild grasses grow, so the Foundation has designated SCP-1150-JP as Keter, and the Foundation's Botany and Civil Engineering Departments are hurriedly dealing with it. is.