Fine Art

Musa acuminata

Musa acuminata (*)

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Monocots
Cladus: Commelinids
Ordo: Zingiberales

Familia: Musaceae
Genus: Musa
Species: Musa acuminata
Name

Musa acuminata Colla, Mem. Gen. Musa 66. 1820.
References

Memorie della Reale Accademia delle Scienze di Torino. Turin 25:394. 1820 (Mem. gen. Musa 66)
USDA, ARS, Germplasm Resources Information Network. Musa acuminata in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 09-Oct-10.

Vernacular names
Deutsch: Bananen
English: apple bananas
suomi: Kääpiöbanaani
ไทย: กล้วยป่า, กล้วยเถื่อน


Musa acuminata is a species of banana native to Southern Asia, its range comprising the Indian Subcontinent and Southeast Asia. Many of the modern edible dessert bananas are from this species, although some are hybrids with Musa balbisiana.[4] First cultivated by humans around 10 kya (8000 BCE),[5][6] it is one of the early examples of domesticated plants.
Fruit in West Bengal, India.

Description

Musa acuminata is an evergreen perennial, not a tree. The trunk (known as the pseudostem) is made of tightly packed layers of leaf sheaths emerging from completely or partially buried corms.[7]

The inflorescence grows horizontally or obliquely from the trunk. The individual flowers are white to yellowish-white in color and are negatively geotropic (that is, growing upwards and away from the ground).[7][8] Both male and female flowers are present in a single inflorescence. Female flowers are located near the base (and develop into fruit), and the male flowers located at the tipmost top-shaped bud in between leathery bracts.[7]

The rather slender fruits are berries, the size of each depends on the number of seeds they contain. Each fruit can have 15 to 62 seeds.[9] Each fruit bunch can have an average of 161.76 ± 60.62 fingers with each finger around 2.4 by 9 cm (1 by 3+1⁄2 in) in size.[10]

The seeds of wild Musa acuminata are around 5 to 6 mm (3⁄16 to 1⁄4 in) in diameter.[7] They are subglobose or angular in shape and very hard. The tiny embryo is located at the end of the micropyle.[9] Each seed of Musa acuminata typically produces around four times its size in edible starchy pulp (the parenchyma, the portion of the bananas eaten), around 0.23 cm3 (230 mm3; 0.014 cu in).[7][11] Wild Musa acuminata is diploid with 2n=2x=22 chromosomes, while cultivated varieties (cultivars) are mostly triploid (2n=3x=33) and parthenocarpic, producing fruit without seeds. The most familiar dessert banana cultivars belong to the Cavendish subgroup. Cultivars have accomplished this desired plant through natural mutations resulting from vegetative multiplication.[12] The ratio of pulp to seeds increases dramatically in "seedless" edible cultivars: the small and largely sterile seeds are now surrounded by 23 times their size in edible pulp.[11] The seeds themselves are reduced to tiny black specks along the central axis of the fruit.[7]
Taxonomy

Musa acuminata belongs to section Musa (formerly Eumusa) of the genus Musa. It belongs to the family Musaceae of the order Zingiberales.[3] It is divided into several subspecies (see section below).[13]

Musa acuminata was first described by the Italian botanist Luigi Aloysius Colla in the book Memorie della Reale Accademia delle Scienze di Torino (1820).[14][15] Although other authorities have published various names for this species and its hybrids mistaken for different species (notably Musa sapientum by Linnaeus which is now known to be a hybrid of Musa acuminata and Musa balbisiana), Colla's publication is the oldest name for the species and thus has precedence over the others from the rules of the International Code of Botanical Nomenclature.[16] Colla also was the first authority to recognize that both Musa acuminata and Musa balbisiana were wild ancestral species, even though the specimen he described was a naturally occurring seedless polyploid like cultivated bananas.[15]
Subspecies

Musa acuminata is highly variable and the number of subspecies accepted can vary from six to nine between different authorities. The following are the most commonly accepted subspecies:[13]

Musa acuminata subsp. burmannica Simmonds

= Musa acuminata subsp. burmannicoides De Langhe

Found in Burma, southern India, and Sri Lanka.

Musa acuminata subsp. errans Argent

= Musa errans Teodoro, Musa troglodyatarum L. var. errans, Musa errans Teodoro var. botoan

Known as saging matsing and saging chonggo (both meaning 'monkey banana'),[17] saging na ligao ('wild banana'), and agutay in Filipino. Found in the Philippines. It is a significant maternal ancestor of many modern dessert bananas (AA and AAA groups). It is an attractive subspecies with blue-violet inflorescence and very pale green unripe fruits.

Musa acuminata subsp. malaccensis (Ridley) Simmonds

= Musa malaccensis Ridley

Found in peninsular Malaysia and Sumatra. It is the paternal parent of the latundan banana.

Musa acuminata subsp. microcarpa (Beccari) Simmonds

= Musa microcarpa Beccari

Found in Borneo. It is the ancestor of the cultivar 'Viente Cohol'

Musa acuminata subsp. siamea Simmonds

Found in Cambodia, Laos, and Thailand.

Musa acuminata subsp. truncata (Ridley) Kiew
Musa acuminata subsp. zebrina (Van Houtte) R. E. Nasution

Commonly known as blood bananas. Native to Java. It is cultivated as an ornamental plant for the dark red patches of color on their predominantly dark green leaves. It has very slender pseudostems with fruits containing seeds like those of grapes. It is one of the earliest bananas spread eastwards to the Pacific and westward towards Africa, where it became the paternal parent of the East African Highland bananas (the Mutika/Lujugira subgroup of the AAA group). In Hawaii it is known as the mai'a 'oa', and is of cultural and folk medicinal significance as the only seeded banana to be introduced to the islands before European contact.[13]

Distribution
Planting of banana

Musa acuminata is native to the biogeographical region of Malesia and most of mainland Indochina.[13]

Musa acuminata favors wet tropical climates in contrast to the hardier Musa balbisiana, the species it hybridized extensively with to provide almost all modern cultivars of edible bananas.[18] Subsequent spread of the species outside of its native region is thought to be purely the result of human intervention.[19] Early farmers introduced M. acuminata into the native range of M. balbisiana resulting in hybridization and the development of modern edible clones.[20]

AAB cultivars were spread from somewhere around the Philippines about 4 kya (2000 BCE) and resulted in the distinct banana cultivars known as the Maia Maoli or Popoulo group bananas in the Pacific islands. They may have been introduced as well to South America during Precolumbian times from contact with early Polynesian sailors, although evidence of this is debatable.[19]

Westward spread included Africa which already had evidence of Musa acuminata × Musa balbisiana hybrid cultivation from as early as 1000 to 400 BCE.[19] They were probably introduced first to Madagascar from Indonesia.[20]

From West Africa, they were introduced to the Canary islands by the Portuguese in the 16th century, and from there were introduced to Hispaniola (modern Haiti and the Dominican Republic) in 1516.[20]
Ecology

Wild Musa acuminata is propagated sexually by seeds or asexually by suckers. Edible parthenocarpic cultivars are usually cultivated by suckers in plantations or cloned by tissue culture.[21] Seeds are also still used in research for developing new cultivars.[9]

Musa acuminata is a pioneer species. It rapidly exploits newly disturbed areas, like areas recently subjected to forest fires. It is also considered a 'keystone species' in certain ecosystems, paving the way for greater wildlife diversity once they have established themselves in an area. It is particularly important as a food source for wildlife due to its rapid regeneration.[10]

Musa acuminata bears flowers that by their very structure, makes it difficult to self-pollinate. It takes about four months for the flowers to develop into fruits, with the fruit clusters at the bases ripening sooner than those at the tip.[10]

A large variety of wildlife feeds on the fruits. These include frugivorous bats, birds, squirrels, tree shrews, civets, rats, mice, monkeys, and apes.[10] These animals are also important for seed dispersal.[22]

Mature seeds germinate readily 2 to 3 weeks after sowing.[21] Unsprouted, they can remain viable from a few months to two years of storage.[9] Nevertheless, studies show that clone plantlets are much more likely to survive than seedlings germinated from seeds.[10]
Domestication
Main articles: Banana and Plantain (cooking)
Green bananas not yet ripe

In 1955, Norman Simmonds and Ken Shepherd revised the classification of modern edible bananas based on their genetic origins. Their classification depends on how many of the characteristics of the two ancestral species (Musa acuminata and Musa balbisiana) are exhibited by the cultivars.[16] Most banana cultivars which exhibit purely or mostly Musa acuminata genomes are dessert bananas, while hybrids of M. acuminata and M. balbisiana are mostly cooking bananas or plantains.[23]

Musa acuminata is one of the earliest plants to be domesticated by humans for agriculture, 7,000 years ago in New Guinea and Wallacea.[24] It has been suggested that M. acuminata may have originally been domesticated for parts other than the fruit. Either for fiber, for construction materials, or for its edible male bud.[25] They were selected early for parthenocarpy and seed sterility in their fruits, a process that might have taken thousands of years. This initially led to the first 'human-edible' banana diploid clones (modern AA cultivars). Diploid clones are still able to produce viable seeds when pollinated by wild species. This resulted in the development of triploid clones which were conserved for their larger fruit.[2]

M. acuminata was later introduced into mainland Indochina into the range of another ancestral wild banana species – Musa balbisiana, a hardier species of lesser genetic diversity than M. acuminata. Hybridization between the two resulted in drought-resistant edible cultivars. Modern edible banana and plantain cultivars are derived from permutations of hybridization and polyploidy of the two.[2]
Ornamental

M. acuminata is one of several banana species cultivated as an ornamental plant, for its striking shape and foliage. In temperate regions it requires protection in winter, as it does not tolerate temperatures below 10 °C (50 °F). The cultivar M. acuminata 'Dwarf Cavendish' (AAA Group) has gained the Royal Horticultural Society's Award of Garden Merit.[26][27]
See also
Wikimedia Commons has media related to Musa acuminata.
Wikispecies has information related to Musa acuminata.

Cooking plantain
Gros Michel banana
Domesticated plants and animals of Austronesia
History of agriculture
Banana Cultivar Groups

References

Williams, E. (2017). "Musa acuminata". IUCN Red List of Threatened Species. 2017: e.T22486320A22486950. doi:10.2305/IUCN.UK.2017-3.RLTS.T22486320A22486950.en. Retrieved 19 November 2021.
Edmond de Langhe & Pierre de Maret (2004). "Tracking the banana: its significance in early agriculture". In Jon G. Hather (ed.). The Prehistory of Food: Appetites for Change. Routledge. p. 372. ISBN 978-0-203-20338-5.
"Musa acuminata Colla, 1820". Germplasm Resources Information Network (GRIN). Agricultural Research Service (ARS), United States Department of Agriculture (USDA). Retrieved June 5, 2011.
Genetic Diversity of the Wild Banana Musa acuminata Colla in Malaysia as Evidenced by AFLP, by Carol Wong, Ruth Kiew, Jin Phang Loh, Leong Huat Gan, Ohn Set, Sing Kong Lee, Shawn Lum and Yik Yuen Gan
Chandramita Bora. "History of Bananas". Buzzle. Archived from the original on 2016-04-15. Retrieved 2013-05-09.
"Archived copy" (PDF). Archived from the original (PDF) on 2012-01-14. Retrieved 2013-05-09.
N.W. Simmonds (1962). "Where our bananas come from". New Scientist. Reed Business Information. 16 (307): 36–39. ISSN 0262-4079. Retrieved 2011-06-11.
Markku Häkkinen & Edmond De Langhe (2001). "Musa acuminata in Northern Borneo" (PDF). International Network for the Improvement of Banana and Plantain (INIBAP). Retrieved June 11, 2011.
S. D. Doijode (2001). Seed storage of horticultural crops. Routledge. pp. 69–71. ISBN 978-1-56022-901-8.
Dokrak Marod; Piya Pinyo; Prateep Duengkae & Tanaka Hiroshi (2010). "The Role of Wild Banana (Musa acuminata Colla) on Wildlife Diversity in Mixed Deciduous Forest, Kanchanaburi Province, Western Thailand" (PDF). Kasetsart Journal: Natural Science. Kasetart University. 44 (1): 35–43. Retrieved 2011-06-11.
Michael Pillay & Abdou Tenkouano (2011). Banana Breeding and Production. CRC Press. ISBN 978-1-4398-0017-1.
T., Lescot. "The genetic diversity of banana in figures". publications.cirad.fr (in French). Retrieved 2018-10-23.
Randy C. Ploetz; Angela Kay Kepler; Jeff Daniells & Scot C. Nelson (2007). "Banana and plantain — an overview with emphasis on the Pacific island cultivars" (PDF). Species Profiles for Pacific Island Agroforestry. Traditional Tree Initiative. Retrieved June 5, 2011.
"Musa paradisiaca". users.globalnet.co.uk.
Deborah A. Karamura (1999). Numerical taxonomic studies of the East African Highland bananas (Musa AAA-East Africa) in Uganda. Bioversity International. p. 18. ISBN 978-2-910810-31-3.
A.B. Molina & V.N. Roa (2000). Advancing Banana and Plantain R and D in Asia and the Pacific. International Network for the Improvement of Banana and Plantain – Asia and Pacific Network (INIBAP-ASPNET) & the International Plant Genetic Resources Institute (IPGRI). p. 57. ISBN 978-971-91751-3-1.
"Progenitors of Edible Bananas". Guide to Growing Bananas. November 1, 2010. Archived from the original on July 7, 2011. Retrieved January 12, 2011.
Noël Kingsbury (2009). Hybrid: the history and science of plant breeding. University of Chicago Press. pp. 31–32. ISBN 978-0-226-43704-0.
Jeffrey William Daniells & Suzanne L. Sharrock (2001). Musalogue, a catalogue of Musa germplasm: diversity in the genus Musa. Bioversity International. ISBN 978-2-910810-42-9.
A. T. G. Elzebroek & Koop Wind (2001). Guide to cultivated plants. CABI. pp. 35–38. ISBN 978-1-84593-356-2.
Hean Chooi Ong (2008). Vegetables for Health and Healing. Utusan Publications. p. 38. ISBN 978-967-61-2102-8.
Zhanhui Tang; Lianxi Sheng; Xunfeng Ma; Min Cao; Stuart Parsons; Jie Ma & Shuyi Zhang (2007). "Temporal and spatial patterns of seed dispersal of Musa acuminata by Cynopterus sphinx" (PDF). Acta Chiropterologica. Museum and Institute of Zoology, Polish Academy of Sciences. 9 (1): 229–235. doi:10.3161/1733-5329(2007)9[229:taspos]2.0.co;2. ISSN 1508-1109. S2CID 86011300. Archived from the original (PDF) on 2018-01-27. Retrieved 2011-06-06.
R.V. Valmayor (2000). "Cooking bananas – Classification, production and utilization in South-East Asia". Infomusa. International Network for the Improvement of Banana and Plantain. 9 (1): 28–30. ISSN 1023-0076. Retrieved 2011-06-05.
Purugganan, Michael D.; Fuller, Dorian Q. (2009). "The nature of selection during plant domestication". Nature. Nature Research. 457 (7231): 843–848. Bibcode:2009Natur.457..843P. doi:10.1038/nature07895. ISSN 0028-0836. PMID 19212403. S2CID 205216444.
Suzanne Sharrok & Emile Frison (1998). "Musa production around the world – trends, varieties and regional importance". Networking Banana and Plantain. International Network for the Improvement of Banana and Plantain (INIBAP) & Bioversity International. pp. 42–47. Retrieved July 23, 2011.
"Musa acuminata 'Dwarf Cavendish' (AAA Group)". Rhs.org.uk.
"AGM Plants – Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 65. Retrieved 2018-04-04.

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