Xerophyta

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Xerophyta
Xerophyta retinervis00.jpg
Xerophyta retinervis
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Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Pandanales
Family: Velloziaceae
Genus: Xerophyta
Juss. (1789)

Xerophyta is a genus of flowering plants in the family Velloziaceae. It was named in 1789 by de Jussieu. [1] [2] It is native to Africa, Madagascar, and the Arabian Peninsula. [3]

Some species in this genus are poikilochlorophyllous plants. This means that during dry climatic conditions, they lose chlorophyll and cease photosynthesis and transpiration. Thus they are extremely tolerant of desiccation . [4] Hence the name Xerophyta, from Ancient Greek ξηρός (xeros, "dry") and φυτά (phutá), plural of φυτόν (phutón, “plant”). [5]

Sequencing of the genome of Xerophyta viscosa allowed to propose that the mechanism of desiccation tolerance in these plants is achieved by employing the genetic repertoire used by desiccation-tolerant seeds. [6]

Species [3]
formerly included [3]

moved to other genera: Barbaceniopsis Nanuza Vellozia

See also

Related Research Articles

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<i>Ochrosia</i> Genus of plants

Ochrosia is a genus of flowering plants, first described in 1789. It is in the family Apocynaceae, native to Southeast Asia, Australia, and various islands of the Indian and Pacific Oceans.

  1. Ochrosia ackeringae(Teijsm. & Binn.) Miq. – Indonesia, Philippines, Papuasia, Christmas Island
  2. Ochrosia acuminataTrimen ex Valeton – Sulawesi
  3. Ochrosia alyxioidesGuillaumin – Vanuatu
  4. Ochrosia apoensisElmer – Luzon, Mindanao
  5. Ochrosia balansae(Guillaumin) Baill. ex Guillaumin – New Caledonia
  6. Ochrosia basistaminaHendrian – Sulawesi
  7. Ochrosia bodenheimarumGuillaumin – Vallée de la Toutouta in New Caledonia
  8. Ochrosia borbonicaJ.F.Gmel. – Mauritius + Réunion; naturalized in Guangdong
  9. Ochrosia brevitubaBoiteau – New Caledonia
  10. Ochrosia brownii(Fosberg & Sachet) Lorence & Butaud – Nuku Hiva in Marquesas
  11. Ochrosia citrodoraK.Schum. & Lauterb. – New Guinea
  12. Ochrosia coccinea(Teijsm. & Binn.) Miq. – Maluku, Sulawesi, New Guinea, Solomon Islands; naturalized in Guangdong
  13. Ochrosia comptaK.Schum., Hōlei – Hawaii
  14. Ochrosia ellipticaLabill. – Lord Howe Island, Queensland, New Caledonia, Vanuatu, Nauru; naturalized in Guangdong + Taiwan
  15. Ochrosia fatuhivensisFosberg & Sachet – Fatu Hiva in Marquesas but extinct
  16. Ochrosia ficifolia(S.Moore) Markgr. – New Guinea
  17. Ochrosia glomerata(Blume) F.Muell. – Borneo, Sulawesi, Philippines, Maluku, New Guinea, Solomon Islands
  18. Ochrosia grandifloraBoit. – New Caledonia
  19. Ochrosia haleakalaeH.St.John, Hōlei – Maui + island of Hawaiʻi in Hawaiian Islands
  20. Ochrosia hexandraKoidz. – Kazan-retto
  21. Ochrosia inventorumL.Allorge – New Caledonia
  22. Ochrosia iwasakiana(Koidz.) Koidz. ex Masam.
  23. Ochrosia kauaiensisH.St.John, Hōlei – Kauaʻi in Hawaiian Islands
  24. Ochrosia kilaueaensisH.St.John, Hōlei – island of Hawaiʻi in Hawaiian Islands, but extinct
  25. Ochrosia kilneriF.Muell. – Queensland
  26. Ochrosia lifuanaGuillaumin – Loyalty Islands + Isle of Pines in New Caledonia
  27. Ochrosia mariannensisA.DC. – Mariana Islands
  28. Ochrosia mianaBaill. ex Guillaumin – New Caledonia
  29. Ochrosia minima(Markgr.) Fosberg & Boiteau – Queensland, Papua New Guinea
  30. Ochrosia moorei(F.Muell.) F.Muell. ex Benth. – Queensland, New South Wales
  31. Ochrosia mulsantiiMontrouz. – New Caledonia
  32. Ochrosia nakaiana(Koidz.) Koidz. ex H.Hara – Ogasawara-shoto
  33. Ochrosia newellianaF.M.Bailey – Queensland
  34. Ochrosia novocaledonicaDäniker – New Caledonia
  35. Ochrosia oppositifolia(Lam.) K.Schum. – Seychelles, Chagos Islands, Sri Lanka, Maldive Islands, Andaman & Nicobar Islands, Thailand, Vietnam, W Malaysia, Indonesia, Papuasia, Samoa, Tonga, Tuvalu, Vanuatu, Wallis & Futuna, French Polynesia, Line Islands, Micronesia
  36. Ochrosia poweriF.M.Bailey – Queensland, New South Wales
  37. Ochrosia sciadophyllaMarkgr – Bismarck Archipelago, Solomon Islands
  38. Ochrosia sevenetiiBoiteau – New Guinea
  39. Ochrosia silvaticaDäniker – New Caledonia
  40. Ochrosia solomonensis(Merr. & L.M.Perry) Fosberg & Boiteau – Solomon Islands
  41. Ochrosia syncarpaMarkgr. – Bali, Lombok, Timor, Flores
  42. Ochrosia tahitensisLaness. ex Pichon – Tahiti
  43. Ochrosia tenimberensisMarkgr. – Tanimbar Islands
  1. Ochrosia nukuhivensisFosberg & Sachet = Rauvolfia nukuhivensis(Fosberg & Sachet) Lorence & Butaud
  2. Ochrosia sandwicensisA.DC. = Rauvolfia sandwicensisA.DC.
  3. Ochrosia tuberculata(Vahl) Pichon = Rauvolfia sandwicensisA.DC.

Poikilohydry is the lack of ability to maintain and/or regulate water content to achieve homeostasis of cells and tissue connected with quick equilibration of cell/tissue water content to that of the environment. The term is derived from Ancient Greek ποικίλος.

Xerophyta scabrida is a plant species in the genus Xerophyta found in Africa. It is a poikilochlorophyllous plant which is desiccation tolerant.

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

Vellozia is a plant genus in the family Velloziaceae, established in 1788.

<span class="mw-page-title-main">Allioideae</span> Large subfamily of flowering plants in the family Amaryllidaceae

Allioideae is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. It was formerly treated as a separate family, Alliaceae. The subfamily name is derived from the generic name of the type genus, Allium. It is composed of about 18 genera.

<i>Bryum argenteum</i> Species of moss

Bryum argenteum, the silvergreen bryum moss or silvery thread moss, is a species of moss in the family Bryaceae. It is one of the most common mosses of urban areas and can be easily recognized without a microscope.

<i>Piriqueta</i> Genus of plants

Piriqueta is a genus of flowering plants belonging to Turneroideae (Passifloraceae).

References

  1. Jussieu, Antoine Laurent de. 1789. Antonii Laurentii de Jussieu Genera plantarum :secundum ordines naturales disposita, juxta methodum in Horto regio parisiensi exaratam 50 in Latin
  2. Tropicos, Xerophyta Juss.
  3. 1 2 3 Kew World Checklist of Selected Plant Families
  4. Loss of chlorophylls, cessation of photosynthetic CO2 assimilation and respiration in the poikilochlorophyllous plant Xerophyta scabrida during desiccation. Z. Tuba, H. K. Lichtenthaler, Zs. Csintalan, Z. Nagy1 and K. Szente, Physiologia Plantarum, March 1996, Volume 96, Issue 3, pages 383–388, doi : 10.1111/j.1399-3054.1996.tb00448.x
  5. Wiktionary
  6. Costa, Maria-Cecília D.; Artur, Mariana A. S.; Maia, Julio; Jonkheer, Eef; Derks, Martijn F. L.; Nijveen, Harm; Williams, Brett; Mundree, Sagadevan G.; Jiménez-Gómez, José M.; Hesselink, Thamara; Schijlen, Elio G. W. M.; Ligterink, Wilco; Oliver, Melvin J.; Farrant, Jill M.; Hilhorst, Henk W. M. (2017-03-27). "A footprint of desiccation tolerance in the genome of Xerophyta viscosa". Nature Plants. 3 (4): 1–10. doi:10.1038/nplants.2017.38. hdl: 11858/00-001M-0000-002E-0723-1 . ISSN   2055-0278.