DESCRIPTION:

Flowrers

The flowers of A. hexapetalus are one of its most striking features. They are bisexual, fragrant, and typically have six petals, although variations in petal number can occasionally occur. The flowers are greenish-yellow when young, turning to a deeper yellow as they mature. Each flower measures about 2-3 cm in diameter and is borne on a hooked peduncle. The petals are fleshy, oblong, and slightly curved, with a waxy texture. The flowers emit a strong, sweet fragrance, particularly in the evening, which attracts pollinators such as beetles and moths. The inflorescence is usually a cyme, with flowers arranged in clusters of two to four. The flowering season varies depending on the region but typically occurs during the warmer months of the year.⁴ 

Fruit

The fruit of A. hexapetalus is an aggregate of berries, which are initially green and turn yellowish-orange when ripe. Each berry is ovoid or ellipsoid in shape, measuring about 1-2 cm in length, and contains one or two seeds. The fruits are not typically consumed by humans but are eaten by birds and other wildlife, which aid in seed dispersal. The seeds are small, dark brown, and embedded in a fleshy pulp. The fruiting season usually follows the flowering season, and the fruits remain on the plant for several weeks before falling to the ground. The plant's reproductive strategy, involving both vegetative propagation through climbing stems and sexual reproduction through seeds, ensures its survival and spread in its natural habitat.⁵

Traditional uses:

Artabotrys hexapetalus (L.f.) Bhandari, commonly known as the "climbing ylang-ylang" or "tail grape," has been extensively used in traditional medicine systems across its native range in Asia, including India, Sri Lanka, and Southeast Asia. In Ayurveda, the plant is known for its cooling and soothing properties and is used to treat a variety of ailments. The leaves, flowers, and roots of A. hexapetalus are the most commonly used parts in traditional remedies. The leaves are often crushed and applied topically to treat skin infections, wounds, and inflammations due to their antimicrobial and anti-inflammatory properties. The juice extracted from the leaves is also consumed to alleviate fever and digestive disorders.⁶

In traditional Siddha medicine, A. hexapetalus is valued for its ability to balance the three doshas (Vata, Pitta, and Kapha) and is used to treat conditions such as rheumatism, arthritis, and nervous disorders. The flowers, which are highly aromatic, are often used in the preparation of medicated oils and powders. These preparations are applied externally to relieve joint pain and muscle stiffness. The flowers are also used in the form of a decoction or infusion to treat respiratory ailments such as cough, asthma, and bronchitis. The essential oil derived from the flowers is believed to have calming and aphrodisiac properties and is used in aromatherapy to reduce stress and anxiety.  The roots of A. hexapetalus are also used in traditional medicine, particularly in the treatment of gastrointestinal disorders. A decoction made from the roots is consumed to relieve stomach pain, diarrhea, and dysentery. The roots are also believed to have diuretic properties and are used to treat urinary tract infections and kidney stones. In some traditional practices, the roots are dried, powdered, and mixed with other herbs to prepare formulations for treating chronic diseases such as diabetes and hypertension. The widespread use of A. hexapetalus in traditional medicine systems underscore its importance as a natural remedy for various health conditions.⁷ 

Phytochemical composition of A. hexapetalus:

Artabotrys hexapetalus (L.f.) Bhandari is a rich source of diverse phytochemicals, which contribute to its medicinal properties and therapeutic potential. The plant contains a variety of bioactive compounds, including alkaloids, flavonoids, terpenoids, and phenolic compounds. Alkaloids such as artabotrine, hexapetaline, and liriodenine have been isolated from the leaves and stems of A. hexapetalus. These alkaloids are known for their antimicrobial, anti-inflammatory, and cytotoxic activities, making them significant in pharmacological research. Additionally, the presence of flavonoids, such as quercetin and kaempferol, contributes to the plant's antioxidant properties, which help in scavenging free radicals and reducing oxidative stress.⁸ 

The essential oil derived from the flowers of A. hexapetalus is another important source of phytochemicals. The oil is composed of various terpenoids, including linalool, geraniol, and β-caryophyllene, which are responsible for the plant's characteristic fragrance and therapeutic properties. These terpenoids exhibit antimicrobial, antifungal, and anti-inflammatory activities, making the essential oil valuable in aromatherapy and traditional medicine. The flowers also contain phenolic compounds, such as gallic acid and caffeic acid, which contribute to the plant's antioxidant and anti-inflammatory effects. The presence of these compounds highlights the potential of A. hexapetalus in the development of natural therapeutics.⁹ 

The leaves of A. hexapetalus are another significant source of phytochemicals. They contain a variety of secondary metabolites, including tannins, saponins, and glycosides. Tannins are known for their astringent and antimicrobial properties, which make them useful in treating wounds and skin infections. Saponins, on the other hand, exhibit hemolytic and anti-inflammatory activities, contributing to the plant's medicinal value. Glycosides, such as artabotrin, have been reported to have cardiotonic and diuretic effects, further enhancing the therapeutic potential of A. hexapetalus. The leaves also contain trace amounts of essential oils, which add to the plant's aromatic and medicinal properties.¹⁰

Pharmacological review:

antimicrobial activity

Artabotrys hexapetalus (L.f.) Bhandari has been extensively studied for its pharmacological properties, which are attributed to its rich phytochemical composition. The plant exhibits significant antimicrobial activity with extracts from its leaves, flowers, and roots showing efficacy against a range of bacterial and fungal pathogens. Alkaloids such as artabotrine and liriodenine, as well as flavonoids like quercetin and kaempferol, are believed to be responsible for this activity. Studies have demonstrated that the essential oil derived from the flowers possesses strong antifungal properties, particularly against dermatophytes, making it a potential candidate for treating skin infections. The antimicrobial properties of A. hexapetalus highlight its potential in developing natural alternatives to synthetic antibiotics and antifungals.¹¹ 

anti-inflammatory and analgesic properties

The plant also exhibits potent anti-inflammatory and analgesic properties, which have been validated through traditional use and pharmacological studies. The leaves and flowers contain bioactive compounds such as flavonoids, terpenoids, and phenolic acids, which inhibit the production of pro-inflammatory mediators like prostaglandins and cytokines. These compounds are also known to reduce oxidative stress, which is often associated with chronic inflammation. In traditional medicine, extracts of A. hexapetalus are used to treat conditions such as arthritis, rheumatism, and muscle pain. The analgesic effects of the plant are attributed to its ability to modulate pain pathways, making it a valuable natural remedy for pain management.¹² 

antioxidant activity

Artabotrys hexapetalus has also been studied for its antioxidant activity, which is primarily due to the presence of flavonoids, phenolic compounds, and essential oils. These compounds scavenge free radicals and reduce oxidative damage to cells, thereby protecting against chronic diseases such as cardiovascular disorders, diabetes, and cancer. The antioxidant properties of the plant are particularly concentrated in its flowers, which are rich in phenolic acids like gallic acid and caffeic acid. The essential oil of A. hexapetalus has been shown to exhibit strong radical-scavenging activity, making it a potential ingredient in nutraceuticals and functional foods aimed at promoting health and preventing disease.¹³ 

cytotoxic and antitumor activity

Another significant pharmacological property of A. hexapetalus is its cytotoxic and antitumor activity. Alkaloids such as liriodenine and artabotrine, as well as diterpenoids isolated from the roots, have demonstrated cytotoxic effects against various cancer cell lines. These compounds induce apoptosis (programmed cell death) in cancer cells and inhibit their proliferation. The plant's antitumor properties are of particular interest in cancer research, as they offer a potential source of natural chemotherapeutic agents. Additionally, the presence of β-sitosterol, a steroidal compound, contributes to the plant's anticancer effects by modulating cell signaling pathways and reducing inflammation.¹⁴ 

antidiabetic and hepatoprotective

In addition to the above properties, A. hexapetalus has been reported to exhibit antidiabetic and hepatoprotective effects. The plant's flavonoids and phenolic compounds help regulate blood glucose levels by enhancing insulin sensitivity and reducing glucose absorption in the intestines. Traditional preparations of the leaves and roots are used to manage diabetes in various cultures. The hepatoprotective activity of A. hexapetalus is attributed to its ability to reduce oxidative stress and inflammation in the liver, thereby protecting against damage caused by toxins and chronic diseases. These pharmacological properties further underscore the plant's potential in managing metabolic and liver-related disorders.¹⁵

CONCLUSION

Artabotrys hexapetalus (L.f.) Bhandari, commonly known as the "climbing ylang-ylang" or "tail grape," is a botanically, culturally, and pharmacologically significant plant. Belonging to the Annonaceae family, it is widely distributed across tropical regions of Asia, including India, Sri Lanka, and Southeast Asia. The plant is characterized by its climbing habit, fragrant six-petaled flowers, and aggregate fruits, which make it a distinctive member of its genus. Its unique morphological features, coupled with its aromatic and medicinal properties, have earned it a prominent place in traditional medicine systems, perfumery, and cultural practices. The plant's ability to thrive in diverse ecological conditions further underscores its adaptability and importance in its native habitats.

The ethnomedical uses of A. hexapetalus highlight its deep-rooted significance in traditional healthcare systems. In Ayurveda, Siddha, and folk medicine, the plant is used to treat a wide range of ailments, including fever, skin diseases, respiratory disorders, and gastrointestinal issues. The leaves, flowers, and roots are valued for their therapeutic properties, which are attributed to the presence of bioactive compounds such as alkaloids, flavonoids, terpenoids, and phenolic compounds. The essential oil derived from the flowers is particularly prized for its calming and aphrodisiac properties, making it a valuable ingredient in aromatherapy and perfumery. The plant's cultural significance, particularly in South India, where its flowers are used in religious ceremonies and festivals, further emphasizes its role in the socio-cultural fabric of the regions where it is found. 

From a pharmacological perspective, A. hexapetalus has demonstrated a wide range of therapeutic properties, including antimicrobial, anti-inflammatory, antioxidant, cytotoxic, antidiabetic, and hepatoprotective activities. These properties are supported by the plant's rich phytochemical composition, which includes compounds such as artabotrine, liriodenine, quercetin, and β-sitosterol. The plant's potential as a source of natural therapeutics is further highlighted by its traditional uses, which are increasingly being validated by modern scientific research. However, further studies are needed to fully understand the mechanisms of action, safety profiles, and potential applications of its bioactive compounds in modern medicine. 

REFERENCE:

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9.      Wealth of India (1948-1976). The Wealth of India: A Dictionary of Indian Raw Materials and Industrial Products*. Vol. 1. New Delhi: Council of Scientific and Industrial Research. 

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11.   Rastogi, R.P., & Mehrotra, B.N. (1993). Compendium of Indian Medicinal Plants. Vol. 3. New Delhi: CDRI Lucknow & Publications & Information Directorate

12.  Chopra, R.N., Nayar, S.L., & Chopra, I.C. (1956). Glossary of Indian Medicinal Plants. New Delhi: Council of Scientific and Industrial Research

13.  Dastur, J.F. (1962). Medicinal Plants of India and Pakistan. Bombay: D.B. Taraporevala Sons & Co. 

14.   Hooker, J.D. (1872). The Flora of British India. Vol. 1. London: L. Reeve & Co. 

15.  Bhandari, M.M. (1965). Flora of the Indian Desert. Jodhpur: Scientific Publishers.