Alnus pendula
Alnus pendula · Accepted scientific name
Scientific literature: Very Sparse (0 studies) · ★☆☆☆☆
Alnus pendula, commonly known as the weeping alder, is a deciduous tree species that has long been studied for its diverse phytochemical profile. Recent pharmacological investigations have focused on the therapeutic potential of its various components against challenging bacterial pathogens. Specifically, research has utilized the bark EtOH extract to evaluate its biological activity against resistant strains. This study investigates the efficacy of these extracts against Methicillin-Resistant Staphylococcus aureus (MRSA), a significant threat in clinical settings. Understanding the antimicrobial properties of Alnus pendula may offer new insights into combatting multidrug-resistant infections.
- Synonyms
- Duschekia Pendula · Alnus Multinervis Var. Nikkoensis · 3 more
- Common names
- Not available
- Family
- Betulaceae
- Distribution
- Not available
- Plant Parts
- Not available
Classification
Common Names
Alnus pendula is a versatile tree widely recognized by its English common name, the Drooping Alder. This species carries diverse linguistic identities across the globe, such as the Korean name Jom-sa-bang-o-ri. In Japan, it is affectionately known as hime-yashibushi, reflecting its unique cultural presence in the region. Moving toward Central and Eastern Europe, the plant is identified as olše převislá in Czech and rohkeroodne lepp in Estonian. These various names highlight the widespread botanical significance and global reach of this graceful tree.
Sources: Catalogue of Life (COL)
Synonyms
Alnus pendula is a botanical species that is recognized by several distinct taxonomic synonyms throughout scientific literature. It has been identified in various studies under the names Alnaster pendulus and Alnus firma var. multinervis. Furthermore, the plant is frequently referred to as Alnus multinervis, a classification that also encompasses the variety Alnus multinervis var. nikkoensis. Some historical records even link the species to the name Duschekia pendula. Understanding these diverse naming conventions is essential for accurate identification and botanical research.
Sources: The World Checklist of Vascular Plants (WCVP)
Taxonomy
Alnus pendula belongs to the vast kingdom Plantae, representing a diverse group of living organisms. Within this kingdom, it is classified under the class Equisetopsida and the order Fagales. This specific botanical lineage continues through its membership in the family Betulaceae. Furthermore, the species is defined by its placement within the genus Alnus. Together, these scientific classifications provide a clear understanding of the plant's biological identity.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Fagales |
| Family | Betulaceae |
| Genus | Alnus |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
Geographic Regions
Alnus pendula is a notable species found within the Asia-temperate regions of the continent. Its natural distribution extends across various landscapes in Eastern Asia, where it plays a vital role in the local ecosystem. Specifically, the plant can be identified thriving throughout the diverse terrain of Japan. It also maintains a significant presence across the peninsula of Korea. Understanding these specific geographic ranges helps researchers better comprehend the environmental needs of this resilient tree.
Sources: The World Checklist of Vascular Plants (WCVP)
Identification
Morphology
Alnus pendula is characterized by its distinct tree growth form, standing prominently within its ecosystem. This species is entirely self-supporting, maintaining its structural integrity without the need for external assistance.
Sources: Global Inventory of Floras and Traits (GIFT)
Biological Activities
Compounds
Conditions
Alnus pendula exhibits potent antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) through its bark extract. Research indicates that the ethanol extract and specific fractions of the bark are effective in combating this growing global health problem. Specifically, the isolation of compounds such as oregonin and hirsutanone from the most active fractions demonstrates significant inhibitory properties. Hirsutanone proved particularly powerful, as a concentration of only 2 MIC was able to completely inhibit the growth of MRSA strains. Consequently, the bark of Alnus pendula serves as a promising plant-based material for treating MRSA infections.
Preparations
Alnus pendula is prepared as a bark EtOH extract to evaluate its potential antibacterial properties. This specific extraction method was utilized to test the plant's efficacy against methicillin-resistant Staphylococcus aureus (MRSA). Through this process, various fractions were derived from the ethanol extract to isolate bioactive compounds. The resulting substances, including oregonin and hirsutanone, demonstrated significant inhibitory effects on bacterial growth. Ultimately, the study confirmed that the bark EtOH extract of Alnus pendula possesses potent antibacterial activity.