The Annonaceae are a family of flowering plants consisting of trees, shrubs, or rarely lianas[3] commonly known as the custard apple family[4][3] or soursop family. With 108 accepted genera and about 2400 known species,[5] it is the largest family in the Magnoliales. Several genera produce edible fruit, most notably Annona, Anonidium, Asimina, Rollinia, and Uvaria. Its type genus is Annona. The family is concentrated in the tropics, with few species found in temperate regions. About 900 species are Neotropical, 450 are Afrotropical, and the remaining are Indomalayan.

Annonaceae
Temporal range: Coniacian - recent[1]
Annona squamosa fruit
Annona squamosa fruit
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Magnoliids
Order: Magnoliales
Family: Annonaceae
Juss.
Type genus
Annona
Subfamilies
Synonyms

Description edit

 
Annona muricata

The species are mostly tropical, some are mid-latitude, deciduous or evergreen trees and shrubs, with some lianas, with aromatic bark, leaves, and flowers.[3]

Stems, stalks and leaves
Bark is fibrous and aromatic. Pith septate (fine tangential bands[6] divided by partitions) to diaphragmed (divided by thin partitions with openings in them).[3] Branching distichous (arranged in two rows/on one plane) or spiral.[7] Leaves are alternate, two-ranked,[7] simple, pinnately veined, and have leaf stalks. Stipules absent.[3]
Flowers
Flower stalks are axillary to (on the opposite side of shoot from) leaf scars on old wood and sometimes from leaves on new shoots. The flowers are usually trimerous; borne singly or in compound inflorescences; bisexual and rarely unisexual. The receptacle might become enlarged, elevated or flat. The outer whorls are inserted below the ovaries, and have valvate (overlapping) or imbricate (nonoverlapping) segments. Usually two to four persistent sepals that are distinct or connate (fused) at the base. Six petals in two unequal whorls of three with larger outer whorls and fleshier inner whorls that might share the same nectar glands, or six to fifteen petals, with impressed veins on their inner face. Ten to twenty (or many more) stamens inserted below the ovary, spirally arranged and forming a ball or flat-topped mass with short and stout filaments and linear to oblong anthers which face outward and open longitudinally. Each flower can have from one to many pistils, distinct to connate, with stigmas distinct. Marginal placentation, each pistil bearing one locule, with one to many ovules. Style short and thick, with terminal stigma.[3]
Fruits and seeds
Fruits are single berries or coalesce from several pistils (into aggregate fruit, syncarps). Seeds are one to many per pistil; have a fleshy and usually brightly colored cover, have ruminate endosperm (nutritive tissue surrounding the embryo) and are oily.[3]

Systematics edit

Monophyly and inter-familial systematics have been well supported for Annonaceae by a combination of morphological and molecular evidence.[8] The APG II system places Annonaceae as most closely related to the small Magnoliid family Eupomatiaceae.

 
Uvaria ovata
Magnoliidae

In a phylogeny-based reclassification of the family[5] four subfamilies are recognised: Anaxagoreoideae (including just Anaxagorea), Ambavioideae, Annonoideae, and Malmeoideae. A number of the larger genera, including Guatteria, with its 177 species,[9] Annona, and Xylopia belong to Annonoideae. Together, Annonoideae and Malmeoideae comprise the majority of the species and each are further subdivided into a number of tribes. The subfamilial and tribal classification is followed in World Annonaceae which presents an overview of all Annonaceae genera and taxonomic, distribution and photographic information for a large number of species. Keys for the identification of Annonaceae genera (separately for Neotropical, African/Madagascan, and Asian/Australian taxa) are presented in:[10] For a concise bibliographic overview of the taxonomic literature (1900 to 2012) see:[11]

Both plastid DNA markers and morphological characters provide evidence that Anaxagorea is the sister clade to the rest of the family. This may confirm the hypothesis that morphological traits shared between Anaxagorea and other Magnoliales species (such as 2-ranked phyllotaxis, monosulcate pollen, and laminate stamens) represent ancestral characters, while derived characters observed in other genera have evolved independently multiple times.[12][13][14] The oldest fossil evidence of Annonaceae is described as the genus Futabanthus, from the Late Cretaceous (Coniacian) of Japan,[15] which represents a minimum age of c. 89 million years ago for the most recent common ancestor (crown group) of the family.[16] The ages of Annonaceae clades inferred using fossil evidence and molecular clock-based dating techniques suggests that the pantropical distribution of the family originated subsequent to the break-up of the Gondwanan supercontinent, as the result of a combination of geodispersal tracking the expansion of the boreotropical flora during the Eocene and more recent long-distance dispersal events.[17][18]

Taxonomic revisions within the subfamily Malmeoideae edit

The reclassification and establishment of Huberantha edit

The genus Huberantha (synonym Hubera) was resolved to be sister to Miliusa, with certain species previously under Polyalthia being additionally reclassified.[19] This reclassification was highly supported by maximum parsimony, Bayesian analysis, and morphological characters. Hubera is characterized by reticulate tertiary venation, axillary inflorescences, 1 ovule per ovary, seeds with flat to slightly raised raphes, and other characters. Huberantha's phylogenetic distance and morphological difference from Monoon and Polyalthia, distinguish Huberantha on the generic level. Morphologically, Huberantha has a finely and densely granular infratectum whereas Monoon and Polyalthia have columellate or densely granular infratecta.[19]

Controversy over Stelechocarpus/Winitia edit

It was proposed that the genus Stelechocarpus, which includes S. burahol and S. cauliflorus be reclassified under a new genus Winitia, which is characterized by mixed flowers, multicolumellar stigmas, and columellate/coarsely granular infratectum. This genus was created after phylogenetic analysis that highly supported an unclassified species from Thailand being sister to S. cauliflorus as a monophyletic group.[20] However this is no longer accepted.[21]

Reclassification of Annickia as tribe Annickieae edit

The genus Annickia was previously included within the tribe Piptostigmateae. However, it is highly supported to being sister to the rest of the Malmeoideae tribes, and weakly supported to being sister to the rest of the Piptostigmateae genera. For these reasons, Annickia is now classified within its own tribe in the Malmeoideae, the Annickieae.[22]

Subfamilies edit

The taxonomy of the Annonaceae is based on the Angiosperm Phylogeny Website, which recognises four subfamilies[23][24] and the extinct genus Anonaspermum[25]

Anaxagoreoideae edit

Auth.: Chatrou et al. 2012 (monotypic)

Ambavioideae edit

Auth.: Chatrou et al. 2012

Annonoideae edit

Tribes and selected genera

Malmeoideae edit

Uses edit

 
Asimina triloba fruit

Food edit

The large, edible, pulpy fruits of some members, typically called anona by Spanish- and Portuguese-speaking people of the family's Neotropical range, include species of Annona: custard apple (A. reticulata), cherimoya (A. cherimola), soursop/guanábana/graviola (A. muricata), sweetsop (A. squamosa), ilama (A. diversifolia), soncoya (A. purpurea), atemoya (a cross between A. cherimola and A. squamosa); and biriba (Rollinia deliciosa, which may require reclassification under Annona).[26] The names of many of those fruits are sometimes used interchangeably.

Consumption of the neotropical annonaceous plant Annona muricata (soursop, graviola, guanabana) has been strongly associated as a causal agent in "atypical Parkinsonism". The causative agent, annonacin, is present in the seeds and leaves of many of the Annonaceae, though not in any significant quantity in the fruit flesh. It is thought to be responsible for up to 70% of Parkinsonian conditions in Guadeloupe. Exposure is typically through traditional food and natural medicines.[27][28][29][30]

The American pawpaw (Asimina triloba) has an Eastern United States distribution and has been investigated as a commercial agricultural crop.[31]

Flower petals from sacred earflower (Cymbopetalum penduliflorum) and from related species C. costaricense[32] were traditionally used to flavor chocolate[33] before the arrival of cinnamon and the other Old World spices.[34] The dried petals are still used to flavor atoles, pinoles, and coffee.[35]

Folk medicine edit

The bark, leaves, and roots of some species are used in folk medicines.[citation needed]

Toxicology edit

The acetogenin compounds, which occur in the fruit, seeds, and leaves of many Annonaceae, including soursop (Annona muricata), are neurotoxins and seem to be the cause of a neurodegenerative disease. The disorder is a so-called tauopathy associated with a pathologic accumulation of tau protein in the brain. Experimental results indicate that acetogenins are responsible for this accumulation.[36]

Other uses edit

Lancewood (Oxandra lanceolata)[37] is a tough, elastic, and heavy wood obtained from the West Indies and The Guianas. It was often used for carriage shafts. It is brought into commerce in the form of taper poles of about 6 m in length and from 15 to 20 cm in breadth at the butt. The black lancewood or carisiri of the Guianas is of remarkably slender form.

The yellow lancewood tree Calycophyllum candididissimum, common names lemonwood or degame, is from a different family (Rubiaceae).[37] It is used as an alternative to lancewood and is found in tolerable abundance throughout The Guianas, and used by the Amerinds for arrow-points, as well as for spars, beams, etc. Some bowyers use this wood for making longbows.

Other edit

 
Ylang-ylang (Cananga odorata) flowers.

Chemical constituents edit

A large number of chemical compounds, including flavonoids, alkaloids, and acetogenins, have been extracted from the seeds and many other parts of these plants. Flavonoids and alkaloids contained in the leaves and bark of several species of the family have shown insecticidal properties.[38]

References edit

  1. ^ "Magnoliales". www.mobot.org. Retrieved 2023-06-18.
  2. ^ Germplasm Resources Information Network (GRIN) (2007-05-12). "Family: Annonaceae Juss., nom. cons". Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 2008-04-18.
  3. ^ a b c d e f g Flora of North America. "2. Annonaceae Jussieu". 3. Archived from the original on 21 April 2008. Retrieved 2008-04-20. {{cite journal}}: Cite journal requires |journal= (help)
  4. ^ "Annonaceae". Integrated Taxonomic Information System. Retrieved 18 March 2008.
  5. ^ a b Chatrou, L.W.; M.D. Pirie; R.H.J. Erkens; T.L.P. Couvreur; K. M. Neubig; J.R. Abbott; J.B. Mols; P.J.M. Maas; R.M.K. Saunders; Mark W. Chase (2012). "A new subfamilial and tribal classification of the pantropical flowering plant family Annonaceae informed by molecular phylogenetics". Botanical Journal of the Linnean Society. 169: S. 4–50. doi:10.1111/j.1095-8339.2012.01235.x. S2CID 82465841.
  6. ^ a b c d Chatrou, Dr. L.W. (2005-07-29). "Molecular Systematics of Annonaceae". Annonaceae Research Projects. Nationaal Herbarium Nederland. Archived from the original on 2008-01-13. Retrieved 2008-04-20.
  7. ^ a b Johnson, D.M. (July–September 2003). "Phylogenetic significance of spiral and distichous architecture in the Annonaceae". Systematic Botany. 28 (3): 503–511. doi:10.1043/02-13.1 (inactive 31 January 2024).{{cite journal}}: CS1 maint: DOI inactive as of January 2024 (link)
  8. ^ Doyle, J.A.; H. Sauquet; T. Scharaschkin (2004). "Phylogeny, molecular and fossil dating, and biogeographic history of Annonaceae and Myristicaceae (Magnoliales)" (PDF). International Journal of Plant Sciences. 165 (4): 55–67. doi:10.1086/421068. S2CID 84131983.
  9. ^ Maas, P.J.M.; Westra, L.Y.T.; Guerrero, S. Arias; Lobão, A.Q.; Scharf, U.; Zamora, N.A.; Erkens, R.H.J. (2015). "Confronting a morphological nightmare: revision of the Neotropical genus Guatteria (Annonaceae)". Blumea - Biodiversity, Evolution and Biogeography of Plants. 60 (1): 1–219. doi:10.3767/000651915X690341. ISSN 0006-5196.
  10. ^ Couvreur, Thomas L.P.; Maas, Paul J.M.; Meinke, Svenja; Johnson, David M.; Keßler, Paul J.A. (2012). "Keys to the genera of Annonaceae". Botanical Journal of the Linnean Society. 169 (1): 74–83. doi:10.1111/j.1095-8339.2012.01230.x. ISSN 0024-4074.
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  12. ^ Scharaschkin, T.; Doyle, J.A. (2005). "Phylogeny and historical biogeography of Anaxagorea (Annonaceae) using morphology and non-coding chloroplast sequence data". Systematic Botany. 30 (5): 712–735. doi:10.1600/036364405775097888. S2CID 86018723.
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  14. ^ Doyle, James A.; Le Thomas, Annick (2012). "Evolution and phylogenetic significance of pollen in Annonaceae". Botanical Journal of the Linnean Society. 169 (1): 190–221. doi:10.1111/j.1095-8339.2012.01241.x. ISSN 0024-4074. S2CID 82733997.
  15. ^ Takahashi, Masamichi; Friis, Else Marie; Uesugi, Kentaro; Suzuki, Yoshio; Crane, Peter R. (2008). "Floral Evidence of Annonaceae from the Late Cretaceous of Japan". International Journal of Plant Sciences. 169 (7): 908–917. doi:10.1086/589693. ISSN 1058-5893. S2CID 85308472.
  16. ^ Pirie, Michael D.; Doyle, James A. (2012). "Dating clades with fossils and molecules: the case of Annonaceae". Botanical Journal of the Linnean Society. 169 (1): 84–116. doi:10.1111/j.1095-8339.2012.01234.x. ISSN 0024-4074.
  17. ^ Richardson, J.E.; Chatrou, L.W.; Mols, J.B.; Erkens, R.H.J.; Pirie, M.D. (2004). "Historical biogeography of two cosmopolitan families of flowering plants: Annonaceae and Rhamnaceae". Philosophical Transactions of the Royal Society B: Biological Sciences. 359 (1450): 1495–1508. doi:10.1098/rstb.2004.1537. ISSN 0962-8436. PMC 1693429. PMID 15519968.
  18. ^ Couvreur, Thomas L.P.; Pirie, Michael D.; Chatrou, Lars W.; Saunders, Richard M.K.; Su, Yvonne C.F.; Richardson, James E.; Erkens, Roy H.J. (2011). "Early evolutionary history of the flowering plant family Annonaceae: steady diversification and boreotropical geodispersal". Journal of Biogeography. 38 (4): 664–680. doi:10.1111/j.1365-2699.2010.02434.x. ISSN 0305-0270. S2CID 85568637.
  19. ^ a b Chaowasku, Tanawat; Johnson, David M.; Van Der Ham, Raymond W.J.M.; Chatrou, Lars W. (2012-10-17). "Characterization of Hubera (Annonaceae), a new genus segregated from Polyalthia and allied to Miliusa". Phytotaxa. 69 (1): 33. doi:10.11646/phytotaxa.69.1.6. ISSN 1179-3163.
  20. ^ Chaowasku, Tanawat; Van Der Ham, Raymond W.J.M. (June 2013). "Integrative systematics supports the establishment of Winitia, a new genus of Annonaceae (Malmeoideae, Miliuseae) allied to Stelechocarpus and Sageraea". Systematics and Biodiversity. 11 (2): 195–207. doi:10.1080/14772000.2013.806370. ISSN 1477-2000. S2CID 86528302.
  21. ^ POWO: Winitia Chaowasku is a synonym of Stelechocarpus Hook.f. & Thomson (retrieved 19 July 2022)
  22. ^ a b Couvreur, Thomas L.P.; Helmstetter, Andrew J.; Koenen, Erik J.M.; Bethune, Kevin; Brandão, Rita D.; Little, Stefan A.; Sauquet, Hervé; Erkens, Roy H.J. (2019-01-09). "Phylogenomics of the Major Tropical Plant Family Annonaceae Using Targeted Enrichment of Nuclear Genes". Frontiers in Plant Science. 9: 1941. doi:10.3389/fpls.2018.01941. ISSN 1664-462X. PMC 6334231. PMID 30687347.
  23. ^ Stevens, P.F. (2001). "List of Genera in ANNONACEAE". Angiosperm Phylogeny Website. 13. Retrieved 30 December 2017.
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  25. ^ Manchester, S.R. (1994). "Fruits and Seeds of the Middle Eocene Nut Beds Flora, Clarno Formation, Oregon". Palaeontographica Americana. 58: 30–31.
  26. ^ Germplasm Resources Information Network (GRIN) (2008-02-14). "Genus: Rollinia A. St.-Hil". Taxonomy for Plants. USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, MD. Retrieved 2008-04-16.
  27. ^ Lannuzel, A; et al. (2003-10-06). "The mitochondrial complex i inhibitor annonacin is toxic to mesencephalic dopaminergic neurons by impairment of energy metabolism". Neuroscience. 121 (2). International Brain Research Organization: 287–296. doi:10.1016/S0306-4522(03)00441-X. PMID 14521988. S2CID 37873631.
  28. ^ Champy, Pierre; et al. (2005-08-02). "Quantification of acetogenins in Annona muricata linked to atypical parkinsonism in guadeloupe". Movement Disorders. 20 (12): 1629–1633. doi:10.1002/mds.20632. PMID 16078200. S2CID 31508365.
  29. ^ Lannuzel A, Höglinger GU, Champy P, Michel PP, Hirsch EC, Ruberg M (2006). "Is atypical parkinsonism in the Caribbean caused by the consumption of Annonacae?". Parkinson's Disease and Related Disorders. Journal of Neural Transmission. Supplementa. Vol. 70. pp. 153–157. doi:10.1007/978-3-211-45295-0_24. ISBN 978-3-211-28927-3. PMID 17017523. {{cite book}}: |journal= ignored (help)
  30. ^ Caparros-Lefebvre D, Elbaz A (1999-07-24). "Possible relation of atypical parkinsonism in the French West Indies with consumption of tropical plants: a case-control study". The Lancet. 354 (9175): 281–6. doi:10.1016/S0140-6736(98)10166-6. PMID 10440304. S2CID 24204451.
  31. ^ Pomper, K.W.; et al. (July 2008). "Flowering and fruiting characteristics of eight pawpaw [Asimina triloba (L.)] Dunal selections in Kentucky". Journal American Pomological Society. 62 (3): 89–97.
  32. ^ Seidemann, Johannes (27 December 2005). "C". World Spice Plants: Economic Usage, Botany, Taxonomy. Springer Science & Business Media. p. 129. ISBN 9783540279082. Retrieved 2 July 2015. Flavoring of drinking chocolate
  33. ^ Uphof, Johannes Cornelis Theodorus (1968) [1959]. Dictionary of Economic Plants (second ed.). New York, NY: J. Cramer. p. 167. ISBN 9783904144711. OCLC 48693661.
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  35. ^ Murray, Nancy A. (6 December 1993). Revision of Cymbopetalum and Porcelia (Annonaceae). Systematic botany monographs. Vol. 40. Ann Arbor, Mich: American Society of Plant Taxonomists. ISBN 9780912861401. OCLC 29527548.
  36. ^ Informationsdienst Wissenschaft: Tauopathie durch pflanzliches Nervengift Archived June 13, 2007, at the Wayback Machine, 4. Mai 2007
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External links edit