Isodon serra

What's the taxonomical classification of Isodon serra?

Isodon serra belongs to the kingdom Plantae and is classified under the phylum Streptophyta. Within this lineage, it is categorized under the class Equisetopsida and the subclass Magnoliidae. Moving further down the taxonomic hierarchy, it is placed in the order Lamiales and the family Lamiaceae. Finally, the plant is identified by its specific genus, Isodon, and its species designation, serrata.

Taxonomic Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Lamiales
Family Lamiaceae
Genus Isodon
Species serra
Evidence Level: ★★★★☆

What are the morphological characteristics of this plant?

Isodon serra has simple, opposite, ovate leaves that measure 2 to 5 inches long and feature sharply serrated margins with distinct, pointed teeth. The leaf bases are typically rounded or slightly asymmetrical, while the tips terminate in an acute point. These leaves are arranged in pairs along the stem, often appearing somewhat crowded near the branch ends. The plant produces small, inconspicuous greenish flowers that cluster in panicles during the summer months. Its bark is characterized by a gray-brown color and develops shallow, longitudinal furrows as the tree matures.

Evidence Level: ★☆☆☆☆

What is the geographical distribution of this plant?

This plant is native to the southeastern United States, specifically ranging from southern New Jersey through the Atlantic coastal plain to Florida and westward to eastern Texas. It primarily inhabits the lowland areas of the coastal plain where soils are moist or seasonally flooded. You can frequently find populations growing in bottomland hardwood forests, along riverbanks, and in swampy depressions. The species prefers the humid subtropical climates found within these specific southern latitudes. Its distribution is closely tied to the availability of riparian habitats and alluvial floodplains.

Evidence Level: ★☆☆☆☆

How is this plant cultivated?

This plant, commonly known as toothache tree, requires well-drained, moist soils and partial shade to thrive in temperate forest environments.

It is typically propagated through seeds or cuttings during the spring months when growth is most active. For successful cultivation, maintain consistent moisture levels without allowing the root zone to become waterlogged. As a slow-growing deciduous species, it needs several years to establish a strong root system before it can reach maturity.

Providing organic mulch can help regulate soil temperature and retain the humidity necessary for its development.

Evidence Level: ★☆☆☆☆

What parts of this plant are used medicinally?

This plant Isodon serra is utilized medicinally through its aerial parts, which include the leaves, stems, and flowers. These above-ground components are often harvested to create decoctions or infusions used in traditional remedies. Practitioners primarily focus on these parts to address various ailments through topical or internal applications. The chemical compounds found within the foliage and stems provide the active medicinal properties required for treatment. Such uses highlight the importance of the plant's structural development for therapeutic purposes.

According to a study published by "Journal of natural products", ten new ent-kaurane diterpenoids were obtained from the aerial parts of Isodon serra. These include two pairs of epimers 1/2 and 4/5 as well as a 6,7-seco-ent-kauranoid 10. The compounds were evaluated for anti-inflammatory properties through an assay measuring nitric oxide inhibitory activities in LPS-stimulated BV-2 cells. Compounds 1 and 9 showed notable inhibition with IC50 values of 15.6 and 7.3 μM, respectively. Molecular docking studies were also employed to explore the interactions of some bioactive diterpenoids with inducible nitric oxide synthase.

The parts of this plant that are ued medicinally are shown in the list below.

  • aerial parts
Evidence Level: ★★★☆☆

What traditional systems uses this plant?

This plant, Isodon serra, is historically utilized in Traditional Chinese Medicine to address various ailments through the application of its bark and wood. Practitioners have traditionally used extracts from the species to treat conditions related to inflammation and digestive issues. In some regional practices, the plant has also been integrated into topical remedies to soothe skin irritations. Beyond medicinal applications, its durable wood has historically served practical purposes in crafting tools and implements. These diverse uses reflect the long-standing cultural and therapeutic significance of the species in various traditional knowledge systems.

According to a study published by "Mitochondrial DNA. Part B, Resources", Isodon serra is a well-known traditional Chinese medicinal plant that is widely distributed in China and its neighbor regions. This herb has a plastome that is 152,676 bp in length and features a typical quadripartite structure. The genome consists of an inverted repeat of 25,716 bp, a large-single copy region of 83,564 bp, and a small-single copy region of 17,680 bp. Within this structure, the genome contains 80 protein coding genes, 30 transfer RNAs, and four ribosomal RNAs.

The hystorical systems that uses this plant are shown in the list below.

  • Traditional Chinese Medicine
Evidence Level: ★★★☆☆

What are the pharmacological activities of Isodon serra?

This plant has anti-inflammatory, antioxidant, and hepatoprotective pharmacological activities that contribute to its medicinal value. Its antioxidant properties help neutralize free radicals and reduce oxidative stress within biological systems. The presence of specific bioactive compounds also allows it to mitigate inflammatory responses by inhibiting various chemical mediators. Furthermore, the plant demonstrates hepatoprotective effects by protecting liver cells from chemical or toxic damage. These combined biological actions make it a subject of significant interest in pharmacological research.

According to a study published by "The Plant journal : for cell and molecular biology", Isodon serra is noted for its abundance of diterpenes, specifically tanshinones. These compounds have been utilized in East Asia for long periods to combat toxicity and inflammation. The study presents a teloomere-to-telomere genome assembly to understand the medicinal properties of the plant. Through gene-to-metabolite network analyses, researchers pinpointed pivotal tanshinone biosynthesis genes and co-expressed transcription factors. Specifically, luciferase assays suggest that IsMYB-13 and IsbHLH-8 may upregulate IsCYP76AH101, which serves as the key step in the biosynthesis of the tanshinone precursor.

The primary pharmacological activities of this plant are shown in the list below.

  • anti-inflammatory
  • antioxidant
  • hepatoprotective
Evidence Level: ★★★☆☆

What medicinal compounds this plant contains?

This plant contains ent-kaurane diterpenoids, labiserins A, labiserins B, nervosanin B, and tanshinones as its primary medicinal compounds. These diverse chemical constituents contribute to the complex pharmacological profile of Isodon serra. Researchers have identified the ent-kaurane diterpenoids as significant components within the plant's secondary metabolites. Furthermore, the specific presence of labiserins A and labiserins B, alongside nervosanin B, provides unique biochemical properties. The inclusion of tanshinones further enhances the medicinal potential of this botanical species.

According to a study published by "Journal of natural products", ten new ent-kaurane diterpenoids were obtained from the aerial parts of Isodon serra. These compounds include two pairs of epimers 1/2 and 4/5 as well as a 6,7-seco-ent-kauranoid 10. During an anti-inflammatory assay using LPS-stimulated BV-2 cells, compounds 1 and 9 exhibited notable nitric oxide production inhibition. Specifically, compound 1 showed an IC50 value of 15.6 μM, while compound 9 demonstrated an IC50 value of 7.3 μM. Molecular docking studies were also employed to explore the interactions of some bioactive diterpenoids with inducible nitric oxide synthase.

The primary medicinal compounds of this plant are shown in the list below.

  • ent-kaurane diterpenoids
  • labiserins A
  • labiserins B
  • nervosanin B
  • tanshinones
Evidence Level: ★★★☆☆

What health conditions is this plant used for?

This plant is used for managing inflammation, reducing inflammatory responses, treating liver damage, mitigating oxidative stress, and combating toxicity. Research suggests its bioactive compounds play a critical role in stabilizing cellular functions during periods of high physiological stress. By neutralizing free radicals, the plant helps prevent the cellular degradation associated with oxidative stress. Its medicinal properties are also significant in protecting hepatic tissues from injury and restoring liver health. Furthermore, its ability to moderate the body's inflammatory responses makes it a valuable resource for addressing various systemic conditions.

According to a study published by "The Plant journal : for cell and molecular biology", Isodon serra (Maxim.) Kudô is known for its abundance of diterpenes, notably tanshinones. These substances have long been used in East Asia to combat toxicity and inflammation. The research identifies IsMYB-13 and IsbHLH-8 as factors that may upregulate IsCYP76AH101 during the biosynthesis of a tanshinone precursor. Through the reconstruction of ancestral Lamiales karyotypes, the study also detects 1 chromosomal fusion from ALK to ALKα and 3 shared chromosomal fusion events from ALKα to Isodon serra. This genome assembly helps illuminate the medicinal properties of the plant.

The main health conditions this plant is used for are shown in the list below.

  • inflammation
  • inflammatory responses
  • liver damage
  • oxidative stress
  • toxicity
Evidence Level: ★★★☆☆

What are the herbal preparations of this plant?

This plant is used to create medicinal herbal preparations such as tea to treat various ailments. Practitioners often decoct the bark or leaves to extract active compounds for therapeutic use. This tea is frequently consumed to address issues related to inflammation or digestive discomfort. Some traditional methods involve steeping the plant material in hot water to produce a potent infusion. These preparations serve as essential components in regional folk medicine practices.

According to a study published by "Acta pharmaceutica Sinica. B", Isodon serra was evaluated among 33 species of frequently used non-Camellia tea. This plant was found to contain higher quantities of γ-aminobutyric acid compared to certain other teas. Additionally, I. serra exhibits remarkable antioxidant activities similar to the activities from green tea at 44.23 μg/mL. The study suggests such teas may serve as functional natural products by providing specific free amino acids.

The main herbal preparations of this plant are shown in the list below.

  • tea
Evidence Level: ★★★☆☆

What side effects this plant can have?

This plant can cause significant adverse health effects including systemic inflammation and internal toxicity when consumed or handled improperly. The chemical compounds present in its tissues may trigger an immune response that leads to swelling or irritation in sensitive areas. If ingested, the substances within the plant can interfere with metabolic processes and lead to toxic reactions within the liver or kidneys. Careful avoidance is necessary to prevent these potentially dangerous physiological complications.

According to a study published by "The Plant journal : for cell and molecular biology", Isodon serra is notable for its abundance of diterpenes, specifically tanshinones. These compounds have been used in East Asia to combat toxicity and inflammation. The study utilizes a teloomere-to-telomere genome assembly to analyze the biosynthetic mechanisms of these medicinal properties. Through gene-to-metabolite network analyses, researchers pinpointed key genes like IsCYP76AH101 and transcription factors IsMYB-13 and IsbHLH-8. The research also identifies three shared chromosomal fusion events that occurred sequentially from the ALKα stage to Isodon serra.

The main side effects this plant can have are shown in the list below.

  • inflammation
  • toxicity
Evidence Level: ★★★☆☆

What herbs are paired with Isodon serra?

This plant Isodon serra, commonly known as toothache tree, pairs most effectively with warming herbs like ginger, cinnamon, and black pepper to enhance its analgesic properties.

These spicy companions work synergistically to stimulate blood circulation and soothe dental or muscular discomfort. Combining the tree's bark with mint can also provide a cooling sensation that complements its bitter profile. Many practitioners also integrate it with licorice root to balance its astringent qualities and improve palatability.

Such combinations are often utilized in traditional topical preparations or specialized herbal infusions.

Evidence Level: ★☆☆☆☆