Juglans cinerea
Juglans cinerea · Accepted scientific name
Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆
Juglans cinerea, commonly known as butternut, possesses significant pharmacological potential derived from its specialized bark and wood extracts. Research indicates that these preparations contain bioactive compounds, specifically identified as PL, which exhibit diverse enzymatic modulation. The plant demonstrates noteworthy biological activities, acting as a 5-Alpha-Reductase-Inhibitor, ACE-Inhibitor, AP-1-Inhibitor, and ATPase-Inhibitor. Furthermore, these extracts show promising efficacy in addressing various microbial challenges involving pathogens such as Aspergillus fumigatus, Candida albicans, Cryptococcus neoformans, and Klebsiella pneumoniae. This combination of enzymatic inhibition and antimicrobial properties highlights the therapeutic value of this species.
- Synonyms
- Wallia Cinerea · Nux Cinerea · 2 more
- Common names
- Not available
- Family
- Juglandaceae
- Distribution
- Not available
- Plant Parts
- Not available
Classification
Common Names
Juglans cinerea is a versatile species known by a wide variety of regional and linguistic names. In English-speaking regions, it is most frequently referred to as the Butternut or sometimes the Butter-Walnut. The plant also holds a significant place in German nomenclature, where it is commonly called the Butternuss. Reflecting its cultural importance, the tree is known by the name Bagaanaak in certain traditional contexts. These diverse names highlight the widespread presence and recognition of this unique nut-bearing tree.
Sources: Catalogue of Life (COL)
Synonyms
Juglans cinerea is a botanical species known by several different scientific names throughout history. It is frequently identified by the synonyms Juglans cathartica and Juglans oblonga in various taxonomic records. Additionally, the plant has been referred to as Nux cinerea in older literature. Some specialized collections may even list it under the name Wallia cinerea. These overlapping designations highlight the complex linguistic evolution within the study of this specific tree.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Juglans cinerea belongs to the vast kingdom Plantae, representing a vital part of the natural world. Within this kingdom, it is categorized under the class Equisetopsida. Its specific lineage continues through the order Fagales, showcasing its evolutionary connections to other woody plants. As a member of the genus Juglans, it shares a close biological relationship with other walnut species. Finally, this plant is nested within the family Juglandaceae, which defines its distinct botanical characteristics.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fagales |
| Family | Juglandaceae |
| Genus | Juglans |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Juglans cinerea exhibits a broad geographical range that spans across diverse regions of both Asia and Europe. In the Asian temperate zone, the species is notably found throughout the Caucasus, the Transcaucasus, and parts of Central Asia, including Tajikistan. Its presence extends into Eastern Europe, where it can be identified within the Baltic States. Furthermore, the plant maintains a foothold in Middle Europe, specifically within the borders of Germany. This wide distribution highlights the plant's ability to adapt to various environmental conditions across the continent.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Juglans cinerea grows in the form of a sturdy tree that remains entirely self-supporting in its natural habitat. This species is characterized by its significant presence in the landscape, reaching a maximum height of 27.24 meters. As it matures, the tree establishes a commanding stature within its ecosystem.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Juglans cinerea demonstrates significant biological potential through its potent antimicrobial and antifungal properties. Research into eastern North American hardwood trees reveals that the bark extract of this species is particularly effective against various bacterial strains, including Pseudomonas aeruginosa and Salmonella typhimurium. Furthermore, the plant exhibits a remarkably broad spectrum of antifungal activity, targeting diverse organisms such as Candida albicans and Aspergillus fumigatus. These findings highlight the efficacy of the bark, which proved more active than the wood extracts in various screenings. Ultimately, the chemical potency of Juglans cinerea validates the traditional medicinal knowledge held by First Nations people.
Compounds
Juglans cinerea is one of several botanical sources known to contain the quinoid constituent plumbagin (PL). While PL is primarily isolated from the roots of Plumbago zeylanica L., it is also naturally present in various species of the Juglans genus. Research indicates that this specific compound possesses significant medicinal properties, particularly regarding its ability to inhibit prostate cancer development. In experimental models, PL has demonstrated a capacity to decrease tumor size and slow the progression of prostatic intraepithelial neoplasia. Consequently, the presence of this constituent in plants like Juglans cinerea highlights their potential importance in the search for novel chemopreventive agents.
Conditions
Juglans cinerea bark extracts demonstrate significant antimicrobial activity against several pathogenic microorganisms. Specifically, the plant's bark is effective in treating the bacteria Klebsiella pneumoniae. It also exhibits a broad spectrum of antifungal properties, successfully treating the fungi Aspergillus fumigatus and Candida albicans. Furthermore, the extracts show therapeutic potential against Cryptococcus neoformans. Finally, the antimicrobial capabilities of Juglans cinerea extend to the treatment of Microsporum gypseum.
Preparations
Juglans cinerea is prepared as both a bark extract and a wood extract for antimicrobial study. Research indicates that the bark extract of this species demonstrates activity against specific bacteria such as Pseudomonas aeruginosa 187, Salmonella typhiumurium, and Klebsiella pneumoniae. Furthermore, the bark extract of Juglans cinerea exhibits the broadest spectrum of antifungal activities against various yeast-like and filamentous fungi. In contrast, the wood extract of the plant is utilized for testing but shows overall lower activity levels compared to the bark. Both preparation methods are examined to evaluate how these traditional medicinal materials interact with different bacterial and fungal strains.