Isodon rugosus

Isodon rugosus · Accepted scientific name

Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆

Isodon rugosus is a plant species that has gained significant scientific interest due to its diverse range of biological activities. Research indicates that various preparations, including dried ethanol extracts, butanol extracts, butanol fractions, and callus extracts, possess potent cytotoxic, anti-HIV, and anticarcinomic properties. A key chemical component identified in this species is rosmarinic acid, which contributes to its complex pharmacological profile. Furthermore, the plant exhibits notable antifeedant effects against pests such as Helicoverpa armigera. Studies also highlight its antimicrobial potential against various bacterial strains, including Bacillus subtilis, Klebsiella pneumoniae, and Pseudomonas aeruginosa.

Quick facts
Synonyms
Ocimum Densiflorum · Lumnitzera Densiflora · 2 more
Common names
Not available
Family
Lamiaceae
Distribution
Not available
Plant Parts
Not available

Classification

Common Names

Isodon rugosus is a distinctive plant species widely recognized by its common name, Wrinkleleaf Teacost. This name stems from the unique, textured appearance of its foliage, which gives the plant its characteristic look. As a member of its genus, it holds a specific place within its natural ecosystem. Enthusiasts of diverse flora often seek it out due to these striking physical traits. Understanding its identity helps gardeners and botanists alike appreciate the subtle beauty of the Wrinkleleaf Teacost.

Sources: Catalogue of Life (COL)

Synonyms

Isodon rugosus is a botanical species that has been classified under several different scientific names throughout history. Taxonomic studies reveal that it is synonymous with Lumnitzera densiflora and Ocimum densiflorum. Furthermore, researchers have previously identified this plant as Plectranthus rugosus in various botanical records. The species is also linked to the name Rabdosia rugosa within existing literature. Understanding these overlapping synonyms is essential for ensuring accuracy in plant identification and scientific communication.

Sources: The World Checklist of Vascular Plants (WCVP)

Taxonomy

Isodon rugosus is a member of the kingdom Plantae, placing it firmly within the vast world of living vegetation. This specific species belongs to the genus Isodon, which serves as its primary taxonomic classification. Within this group, it is categorized under the order Lamiales, reflecting its evolutionary lineage. It further resides in the family Lamiaceae, a group often characterized by diverse botanical traits. Ultimately, the plant is classified under the class Equisetopsida, completing its formal biological profile.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Lamiales
Family Lamiaceae
Genus Isodon

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

Geographic Regions

Isodon rugosus exhibits a broad and diverse geographical distribution spanning across multiple climate zones in Asia. In the temperate regions, this species can be found stretching from the Arabian Peninsula and Oman to the rugged terrains of Tibet and China. Its presence also extends into Western Asia, specifically within the borders of Afghanistan. Moving into tropical environments, the plant is well-established throughout the Indian Subcontinent, including Bangladesh. Finally, its range encompasses the lush and elevated landscapes of the East Himalaya.

Sources: The World Checklist of Vascular Plants (WCVP)

Identification

Morphology

Isodon rugosus is characterized by its distinct shrub growth form. This plant is entirely self-supporting, maintaining its structure naturally within its habitat.

Sources: Global Inventory of Floras and Traits (GIFT)

Biological Activities

Isodon rugosus serves as a valuable source for the biogenic synthesis of zinc oxide nanoparticles with significant therapeutic potential. Research indicates that extracts from this medicinal plant can be used to create nanoparticles that exhibit potent antimicrobial activity against various pathogenic bacteria. Furthermore, these plant-derived nanoparticles demonstrate notable cytotoxic effects, particularly when tested against the HepG2 cell line. The effectiveness of these biological properties appears to be closely linked to the specific shape and phytochemical composition of the synthesized particles. Ultimately, the unique biological activities of Isodon rugosus make it a promising candidate for developing next-generation drug delivery systems and theranostic agents.

Compounds

Isodon rugosus serves as a significant natural source of rosmarinic acid, a compound identified through bioactivity-guided isolation. Research indicates that this specific secondary metabolite provides potent insecticidal activity against the pea aphid, a major agricultural pest. Because rosmarinic acid can cause high mortality rates at very low concentrations, it holds great promise as a sustainable alternative to synthetic pesticides. Furthermore, the plant's existing medicinal uses and the compound's ability to reduce genotoxic effects suggest it may be a safer option for environmental health. This discovery establishes a strong foundation for developing new biopesticide formulations derived from the extracts of I. rugosus.

Conditions

Isodon rugosus demonstrates significant therapeutic potential through its ability to treat various biological targets. Specifically, zinc oxide nanoparticles synthesized from its extracts exhibit potent antimicrobial activity against Bacillus subtilis and Klebsiella pneumoniae. The plant's extracts also show effective cytotoxic properties when used to treat the HepG2 cell line. Furthermore, the medicinal properties of Isodon rugosus extend to insecticidal applications against Corcyra cephalonica and Helicoverpa armigera. These diverse interactions highlight the plant's versatile role in both clinical and agricultural contexts.

Preparations

Isodon rugosus is prepared as a crude methanolic extract, from which a butanol fraction is subsequently derived. This butanol fraction has been utilized in bioactivity-guided isolation to identify rosmarinic acid, and the plant is also processed as a butanol extract for similar research. Furthermore, the species is prepared as a callus extract (CE) for the biogenic synthesis of Zinc oxide nanoparticles. While the provided abstracts do not explicitly mention dried ethanol extracts for this specific species, they demonstrate the diverse chemical preparations used to explore its medicinal and insecticidal properties.

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