Citrullus ecirrhosus

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Citrullus ecirrhosus
Citrullus ecirrhosus fruit MHNT.JPG
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Cucurbitales
Family: Cucurbitaceae
Genus: Citrullus
Species:
C. ecirrhosus
Binomial name
Citrullus ecirrhosus
Cogn. 1888
Synonyms [1]
  • Colocynthis ecirrhosus(Cogn.) Chakrav.

Citrullus ecirrhosus, commonly known as Namib tsamma, is a species of perennial desert vine in the gourd family, Cucurbitaceae, and a relative of the widely consumed watermelon (Citrullus lanatus). It can be found in both Namibia and the Cape Provinces of South Africa, in particular the Namib Desert. It is the sister species to the bitter melon, Citrullus amarus with which it shares hard, white and bitter flesh. [2]

The vines can crawl for up to two meters, and it has yellow flowers. As a desert plant, it is a hardy species, surviving with little water and strong sunlight. The leaves form annual stems which die back each year. The plant relies on water deep in the ground and morning fogs. It is an important source of water for numerous desert fauna. The bitter-tasting fruit it produces are known as tsamma melons.

Experiments done by Simmons, Jarret, Cantrell, and Amnon in 2019 introduced the hybridization of Citrullus ecirrhosus and Citrullus lanatus developed a cultivated watermelon capable of resistance to pests such as whiteflies (Bemisia tabaci). [3] The hybrid developed whitefly resistance while still retaining traits of watermelon (Citrullus lanatus). While the hybrid did not offer total resistance, it was better protected than regular grown watermelons.

Tsamma melons in the Namib desert Tsamma-Melone in der Namibwuste.jpg
Tsamma melons in the Namib desert

Related Research Articles

<span class="mw-page-title-main">Cucurbitaceae</span> Family of plants

The Cucurbitaceae, also called cucurbits or the gourd family, are a plant family consisting of about 965 species in around 95 genera. Those most important to humans are the following:

<i>Citrullus</i> Genus of flowering plants

Citrullus is a genus of seven species of desert vines, among which Citrullus lanatus is an important crop.

<span class="mw-page-title-main">Melon</span> Type of fruit

A melon is any of various plants of the family Cucurbitaceae with sweet, edible, and fleshy fruit. The word "melon" can refer to either the plant or specifically to the fruit. Botanically, a melon is a kind of berry, specifically a "pepo". The word melon derives from Latin melopepo, which is the latinization of the Greek μηλοπέπων (mēlopepōn), meaning "melon", itself a compound of μῆλον (mēlon), "apple", treefruit " and πέπων (pepōn), amongst others "a kind of gourd or melon". Many different cultivars have been produced, particularly of cantaloupes.

<span class="mw-page-title-main">Whitefly</span> Family of insects

Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described.

<i>Cucumis metuliferus</i> Vine in the cucumber and melon family

Cucumis metuliferus, commonly called the African horned cucumber, horned melon, spiked melon, jelly melon, or kiwano, is an annual vine in the cucumber and melon family Cucurbitaceae. Its fruit has horn-like spines, hence the name "horned melon". The ripe fruit has orange skin and lime-green, jelly-like flesh. C. metuliferus is native to Southern Africa, in South Africa, Namibia, Botswana, Zambia, Zimbabwe, Mozambique, and Angola.

<span class="mw-page-title-main">Silverleaf whitefly</span> Species of true bug

The silverleaf whitefly is one of several species of whitefly that are currently important agricultural pests. A review in 2011 concluded that the silverleaf whitefly is actually a species complex containing at least 40 morphologically indistinguishable species.

<i>Citrullus colocynthis</i> Species of vine

Citrullus colocynthis, with many common names including Abu Jahl's melon,colocynth, bitter apple, bitter cucumber, egusi, vine of Sodom, or wild gourd, is a desert viny plant native to the Mediterranean Basin and Asia, especially the Region of Palestine, Turkey, and Nubia.

<span class="mw-page-title-main">Egusi</span> Type of seed commonly found in West African cuisine

Egusi also known as agusi, ohue, Ikpan, Ikon, agushi or mbíka) is the name for the protein-rich seeds of certain cucurbitaceous plants, which, after being dried and ground, are used as a major ingredient in West African cuisine.

<i>Cucumis myriocarpus</i> Berry and plant

Cucumis myriocarpus, the gooseberry cucumber, gooseberry gourd, paddy melon, Mallee Pear or prickly paddy melon is a prostrate or climbing annual herb native to tropical and southern Africa. It has small, round, yellow-green or green-striped fruit with soft spines, small yellow flowers and deeply lobed, light green leaves. The melon occurs in disturbed soil and cleared or bare areas, and thrives on summer moisture.

<span class="mw-page-title-main">Watermelon seed oil</span> Seed oil from Citrullus lanatus

Watermelon seed oil is extracted by pressing from the seeds of the Citrullus lanatus (watermelon). It is particularly common in West Africa, where it is also called ootanga oil.

<span class="mw-page-title-main">Citron melon</span> Species of fruit and plant

The citron melon, also called Citrullus lanatus var. citroides and Citrullus amarus, fodder melon, preserving melon, red-seeded citron, jam melon, stock melon, Kalahari melon or tsamma melon, is a relative of the watermelon. It is from the family Cucurbitaceae which consists of various squashes, melons, and gourds. Native to arid landscapes of sub-Saharan Africa, it has been a wild source of nutrition and hydration for humans for an extraordinarily long time. Its fruit has a hard white flesh, rendering it less likely to be eaten raw in the modern era; more often it is pickled or used to make fruit preserves, and is used for cattle feed. It is especially useful for fruit preserves, because it has a high pectin content.

<i>Didymella bryoniae</i> Species of fungus

Didymella bryoniae, syn. Mycosphaerella melonis, is an ascomycete fungal plant pathogen that causes gummy stem blight on the family Cucurbitaceae, which includes cantaloupe, cucumber, muskmelon and watermelon plants. The anamorph/asexual stage for this fungus is called Phoma cucurbitacearum. When this pathogen infects the fruit of cucurbits it is called black rot.

Tomato yellow leaf curl virus (TYLCV) is a DNA virus from the genus Begomovirus and the family Geminiviridae. TYLCV causes the most destructive disease of tomato, and it can be found in tropical and subtropical regions causing severe economic losses. This virus is transmitted by an insect vector from the family Aleyrodidae and order Hemiptera, the whitefly Bemisia tabaci, commonly known as the silverleaf whitefly or the sweet potato whitefly. The primary host for TYLCV is the tomato plant, and other plant hosts where TYLCV infection has been found include eggplants, potatoes, tobacco, beans, and peppers. Due to the rapid spread of TYLCV in the last few decades, there is an increased focus in research trying to understand and control this damaging pathogen. Some interesting findings include the virus being sexually transmitted from infected males to non-infected females, and an evidence that TYLCV is transovarially transmitted to offspring for two generations.

<span class="mw-page-title-main">Watermelon</span> Large gourd fruit with a smooth hard rind

Watermelon is a flowering plant species of the Cucurbitaceae family and the name of its edible fruit. A scrambling and trailing vine-like plant, it is a highly cultivated fruit worldwide, with more than 1,000 varieties.

Paddy melon is a common name for two species of plants in the melon family which are invasive in Australia:

Pig melon is a common name for two species of plants in the melon family which are invasive in Australia:

Cassava brown streak virus is a species of positive-strand RNA viruses in the genus Ipomovirus and family Potyviridae which infects plants. Member viruses are unique in their induction of pinwheel, or scroll-shaped inclusion bodies in the cytoplasm of infected cells. Cylindrical inclusion bodies include aggregations of virus-encoded helicase proteins. These inclusion bodies are thought to be sites of viral replication and assembly, making then an important factor in the viral lifecycle. Viruses from both the species Cassava brown streak virus and Ugandan cassava brown streak virus (UCBSV), lead to the development of Cassava Brown Streak Disease (CBSD) within cassava plants.

<i>Sweet potato leaf curl virus</i> Species of virus

Sweet potato leaf curl virus is commonly abbreviated SPLCV. Select isolates are referred to as SPLCV followed by an abbreviation of where they were isolated. For example, the Brazilian isolate is referred to as SPLCV-Br.

Kalahari melon oil also known as Tsamma (Damara/Nama), wild watermelon (English), bitterboela, karkoer (Afrikaans), wild watermelon, makatane (Setswana) or Mokaté oil, is a plant oil, extracted from the seeds of the Kalahari melon (Citrullus vulgaris), which is endemic to the Kalahari Desert, spanning Namibia, Botswana and South Africa. Being one of 1,200 varieties of melon, Kalahari melon oil is distinct from regular watermelon seed oil. The seed of the Kalahari melon consists of approximately 50% oil, 35% protein and 5% dietary fibre.

Citrullus rehmii, commonly known as the Namib melon, or the reins melon, is a species of annual melon in the family Cucurbitaceae that is native to the Namib Desert, Namibia. It was described by Bernard de Winter in 1990. The species has a dark grey rind, with light brown-orange spots scattered throughout. It forms a vine with dark green leaves, and a light green stem. Flowers are a yellow color on the inside, and a white on the inside. They are non-edible, and are vastly different from other species of melon based on its general appearance. The species is quite hard to find in its natural range, but has been spotted on more than one occasion. It is somewhat used as an ornamental plant, and overlaps with the Namib tsamma in Namibia.

References

  1. "The Plant List: A Working List of All Plant Species" . Retrieved 8 October 2014.
  2. Chomicki, G.; S. S. Renner (2015). "Watermelon origin solved with molecular phylogenetics including Linnaean material: another example of museomics". New Phytologist. 205 (2): 526–532. doi: 10.1111/nph.13163 . PMID   25358433.
  3. Simmons, A. M., Jarret, R. L., Cantrell, C. L., &amp; Amnon, L. (2019, October). Citrullus ecirrhosus: Wild Source of Resistance Against Bemisia tabaci (Hemiptera: Aleyrodidae) for Cultivated Watermelon.