Mallotus japonicus
Mallotus japonicus · Accepted scientific name
Scientific literature: Very Sparse (10 studies) · ★☆☆☆☆
Mallotus japonicus is a versatile botanical species recognized for its significant pharmacological potential in medicinal research. Studies focusing on its leaf and stem components have revealed diverse biological activities, including cytotoxic, anticancer, antiherpetic, and antitumor properties. Chemical investigations have identified key bioactive compounds within its extracts, such as bergenin, hydrolyzable tannins, and specific acetophenones like 2,6-dihydroxy-3-methyl-4-methoxyacetophenone. Various preparations, ranging from ethanol and diethyl ether extracts to bark-derived substances, are utilized to harness these therapeutic effects. These medicinal properties show promise in addressing complex conditions such as cancer and infections caused by Aeromonas hydrophila and Aeromonas salmonicida.
- Synonyms
- Croton Japonicus · Mallotus Nepalensis Var. Ochraceoalbidus · 4 more
- Common names
- Not available
- Family
- Euphorbiaceae
- Distribution
- Not available
- Plant Parts
- Leaf · Stem
Classification
Common Names
Mallotus japonicus is a versatile plant recognized by a wide variety of names across different linguistic and regional contexts. In English-speaking regions, it is most simply identified by its common name, Mallotus. This botanical identity extends into Cyrillic script as Маллотус японский, ensuring its recognition in diverse scientific circles. In Japan, the species is known locally as both アカメガシワ and 野桐, reflecting its deep-rooted presence in East Asian landscapes. Finally, the plant is also referred to as 예덕나무, showcasing its cultural and botanical significance within the Korean language.
Sources: Catalogue of Life (COL)
Synonyms
Mallotus japonicus is a plant species that has historically been associated with several different botanical names. Within various taxonomical records, it is recognized by the synonym Croton japonicus. The species also encompasses several distinct varieties, such as Mallotus japonicus var. angustatus and Mallotus japonicus var. ochraceoalbidus. Furthermore, scientific classifications have previously linked it to Mallotus nepalensis var. ochraceoalbidus and Mallotus oreophilus var. ochraceoalbidus. Understanding these various synonyms is essential for maintaining accuracy in botanical research and identification.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Mallotus japonicus is a distinctive member of the kingdom Plantae that showcases the diverse beauty of the natural world. Belonging to the class Equisetopsida, this species is integrated into the complex order Malpighiales. It is further classified under the genus Mallotus, which helps botanists identify its unique structural characteristics. Within this group, it finds its place in the widely recognized family Euphorbiaceae. Understanding these taxonomic relationships provides essential insight into the evolutionary history of this fascinating plant.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Malpighiales |
| Family | Euphorbiaceae |
| Genus | Mallotus |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Mallotus japonicus is a plant species primarily distributed throughout the Asia-temperate regions. Its presence is notably widespread across China, including the specific territories of Southeast China. The species also thrives within Eastern Asia, with documented populations found in Japan and Korea. Furthermore, it can be identified in the Nansei-shoto islands as well as throughout Taiwan. This broad geographic range highlights the plant's adaptability across various eastern Asian landscapes.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Mallotus japonicus is a self-supporting plant characterized by its distinct tree growth form. This species typically reaches a modest stature, with heights generally ranging between 2 and 4 meters. Depending on its specific environmental conditions, it may frequently establish itself at a minimum height of 3 meters. These structural dimensions make it a compact yet sturdy addition to its native landscape. Overall, its predictable size and upright habit define its physical presence in the ecosystem.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Mallotus japonicus is a plant of significant medicinal interest due to the diverse biological activities found within its chemical constituents. Research on its pericarps has identified various phloroglucinol derivatives that exhibit potent cytotoxic and antitumor properties against multiple cancer cell lines. Beyond its role in oncology, the plant shows promising antiherpetic activity by effectively inhibiting the replication of the herpes simplex virus. Furthermore, the major constituent bergenin has demonstrated strong hepatoprotective effects by helping to restore liver enzyme levels and prevent damage in animal models. Collectively, these findings highlight the multifaceted therapeutic potential of Mallotus japonicus in treating cancer, viral infections, and liver toxicity.
Compounds
Mallotus japonicus is a medicinal plant characterized by a diverse profile of bioactive chemical constituents. Among its primary components is bergenin, a major constituent known for its significant hepatoprotective effects against liver damage in animal models. The plant's pericarps also yield specific chromene derivatives, namely butyrylmallotochromene and isobutyrylmallotochromene, which have demonstrated cytotoxicity against KB cell lines. Furthermore, research has isolated the phloroglucinol derivatives isomallotochromanol and isomallotolerin from the plant's cytotoxic fractions. Together, these various compounds highlight the complex chemical makeup and therapeutic potential of this species.
Conditions
Mallotus japonicus exhibits significant antimicrobial properties that allow it to treat the fish pathogenic bacteria Aeromonas hydrophila and Aeromonas salmonicida. The plant extracts, particularly the diethyl ether-extract, serve as a potential alternative to antibiotics in aquaculture for managing these infections. Beyond its antibacterial capabilities, Mallotus japonicus and its constituent bergenin provide potent hepatoprotective effects. Specifically, the plant helps treat hepatic damage, liver damage, and CCl4-induced hepatic damage in rat models. These protective actions are achieved by restoring enzymatic activities and preventing oxidative stress caused by carbon tetrachloride intoxication.
Preparations
Mallotus japonicus is prepared as bark to facilitate the isolation and characterization of various hydrolyzable tannins. The plant is also prepared as leaves, which have been found to contain specific tannins with a beta-D-glucopyranose core. Within the plant, bergenin is isolated as a major active compound. Additionally, Mallotus japonicus is prepared as ethanol-extracts and diethyl ether-extracts for study. Of these, the diethyl ether-extract has demonstrated the strongest antibacterial activity against certain fish pathogenic bacteria.
Parts used
Mallotus japonicus is a plant species that possesses several distinct anatomical parts used in chemical research. Scientific examinations of its leaves have revealed the presence of various hydrolyzable tannins characterized by a beta-D-glucopyranose core. Additionally, the stem of this plant serves as a significant source for studying bioactive compounds. Research specifically highlights that the stem exhibits significant inhibitory activity against HIV-1 reverse transcriptase. Together, these findings underscore the importance of utilizing different parts of Mallotus japonicus for pharmacological discovery.