gac melon

Names and Synonyms

Common Names

• Chinese bitter-cucumber
• Chinese-cucumber
• balsam-pear
• gac
• giant spine gourd
• spiny bitter-cucumber
• sweet gourd
• Balsam Pear

Scientific Names

Accepted name

Synonyms

• Momordica macrophylla
• Muricia cochinchinensis
• Momordica mixta
• Momordica sphaeroidea
• Momordica suringarii
• Zucca commersoniana
• Momordica cochinchinensis subsp. andamanica
• Momordica meloniflora
• Momordica ovata

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant, known scientifically as Momordica cochinchinensis, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Cucurbitales and the family Cucurbitaceae. It is further categorized under the genus Momordica.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical range across several key regions in Asia. Within China, it is widely distributed through the South-Central and Southeast provinces. It also finds a specialized habitat in the high-altitude regions of Tibet. Moving toward Eastern Asia, the species is commonly documented in Taiwan. Finally, its distribution extends to the Indian Subcontinent, specifically within the Assam region.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Momordica cochinchinensis is characterized by its adaptation to a broad altitudinal gradient, allowing it to thrive across diverse topographical landscapes. This climbing vine is typically found within an elevational range spanning from a minimum of 140 m AMSL to a maximum of 2000 m AMSL. This wide vertical distribution suggests a significant degree of ecological plasticity, enabling the species to inhabit both lowland tropical environments and higher-altitude montane regions. Such a range indicates that the plant can tolerate varying temperature regimes and atmospheric pressures, provided the underlying requirements for moisture and light are met within these specific altitudinal limits.

Elevational range max:

2000 m AMSL

Elevational range min:

140 m AMSL

Life history

The life history of Momordica cochinchinensis is characterized by its classification as a perennial plant, allowing it to persist through multiple growing seasons rather than completing its cycle within a single year. In terms of its ecological strategy and growth habit, it is categorized as a therophyte, a life form defined by its ability to survive unfavorable periods through specific specialized stages. This biological framework supports its development as a vigorous climber, utilizing its life cycle to establish a lasting presence within its natural habitat.

Life form :

therophyte

Lifecycle :

perennial

Morphology

The morphology of Momordica cochinchinensis is characterized by its vigorous growth habit as an obligatory climber, utilizing specialized tendrils to ascend supporting structures. This perennial vine can reach a significant plant height, with a mean measurement of approximately 15 m. The plant features deeply lobed, climbing stems that support dense foliage and specialized reproductive structures typical of the Cucurbitaceae family.

Climber :

obligatory

Plant height mean:

15 m

Physiology

The physiology of Momordica cochinchinensis is characterized by a complex metabolic framework adapted for climbing and rapid biomass accumulation. As a perennial climber, its physiological processes are heavily geared toward the development of specialized tendrils that utilize thigmotropism to secure structural support, facilitating efficient light interception for photosynthesis. The plant exhibits a robust photosynthetic mechanism within its broad, lobed leaves to sustain its climbing growth habit and reproductive cycles. Regarding its nutrient acquisition and symbiotic relationships, Momordica cochinchinensis is not a nitrogen fixer; it lacks the specialized root nodules required to house diazotrophic bacteria for atmospheric nitrogen conversion, meaning it relies entirely on the uptake of dissolved nitrates and ammonium from the soil substrate. Its physiological efficiency is further driven by a sophisticated vascular system that facilitates the long-distance transport of water and carbohydrates through its extended vines, supporting the development of its characteristic fleshy fruits and nutrient-dense tissues.

Nitrogen fixer :

no

Reproduction

The reproduction of Momordica cochinchinensis is governed by a complex biotic pollination syndrome, relying on living organisms to facilitate the transfer of genetic material. This reproductive process is primarily driven by insect pollination, where various pollinators play a critical role in the plant's life cycle. Specifically, the pollination mechanism involves a diverse range of insects, including bees, beetles, ants, butterflies, moths, and flies, which act as the primary agents for pollen dispersal. By utilizing these biotic vectors, the plant ensures effective fertilization and subsequent seed production, moving away from abiotic methods like wind or water in favor of specialized animal-mediated interactions.

Pollination syndrome :

insect

Pollination syndrome :

biotic

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Momordica cochinchinensis has 2 reported plant parts identified across 5 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include seed, root.

Seed

1. Peptides
2. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica
3. Journal of natural products
4. Nutrition and cancer

Root

1. International journal of peptide and protein research

Chemicals

Momordica cochinchinensis has 15 reported phytochemicals identified across 5 scientific publications and several other databases. The most consistently reported chemicals include 5-Dehydrokarounidiol, 7-Oxodihydrokarounidiol, BETA-SITOSTEROL, CHLOROFORM, Carotenoids.

5-Dehydrokarounidiol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

7-Oxodihydrokarounidiol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

BETA-SITOSTEROL

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

CHLOROFORM

1. Parasitology research

Carotenoids

1. Asian Pacific journal of cancer prevention : APJCP

ETHYL ACETATE

1. Parasitology research

Isokarounidiol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Karounidiol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Momordin Ic

1. Journal of medicinal food

OLEANOLIC ACID

1. Journal of medicinal food

Activities

Momordica cochinchinensis has 4 reported activities identified across 5 scientific publications and several other databases. The most consistently reported activities include Abortifacient, Antipruritic, Antitumor, Hepatoprotective.

Abortifacient

1. General pharmacology

Antipruritic

1. Biological & pharmaceutical bulletin

Antitumor

1. General pharmacology

Hepatoprotective

1. Journal of medicinal food

Medicinal Uses

Momordica cochinchinensis has 6 reported medicinal uses identified across 5 scientific publications and several other databases. The most consistently reported uses include melanoma, Alzheimer's disease, Chronic Myeloid Leukemia, Colorectal cancer, breast cancer.

Most Reported Uses

Preparations