Overview

Comprehensive Description

Description

Unarmed herbs, shrubs or small trees. Inflorescence a terminal panicle-like cyme. Calyx 5-lobed, much shorter than the corolla tube, usually somewhat accrescent in fruit. Corolla white, yellow, pink, red or purplish; tubular with a short limb. Stamens 5; anthers included (in ours), dehiscing by longitudinal slits.  Fruit a capsule with a large number of minute seeds; capsule enclosed by a persistent papery calyx.
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Source: Flora of Zimbabwe

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Ecology

Associations

Foodplant / pathogen
Cucumber Mosaic virus infects and damages Nicotiana

Foodplant / pathogen
Potato Mosaic virus X infects and damages Nicotiana

Foodplant / pathogen
Potato Mosaic virus Y infects and damages Nicotiana

Foodplant / pathogen
Tobacco Mosaic virus infects and damages Nicotiana

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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 148
Specimens with Sequences: 157
Specimens with Barcodes: 144
Species: 66
Species With Barcodes: 65
Public Records: 103
Public Species: 64
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Barcode data

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Wikipedia

Nicotiana

For the agricultural product, see Tobacco.

Nicotiana /ˌnɪkɵʃiˈnə/[3] is a genus of herbaceous plants and shrubs of the family, Solanaceae, that is indigenous to the Americas, Australia, south west Africa and the South Pacific. Various Nicotiana species, commonly referred to as tobacco plants, are cultivated as ornamental garden plants. N. tabacum is grown worldwide for production of tobacco leaf for cigarettes and other tobacco products.

Taxonomy[edit]

Species[edit]

The 67 species include;[4][5]

Manmade hybrids[edit]

Formerly placed here[edit]

Etymology[edit]

The word nicotiana (as well as nicotine) was named in honor of Jean Nicot, French ambassador to Portugal, who in 1559 sent it as a medicine to the court of Catherine de' Medici.[10]

Ecology[edit]

Female Manduca sexta (Tobacco Hornworm)
Further information: List of tobacco diseases

Despite containing enough nicotine and/or other compounds such as germacrene and anabasine and other piperidine alkaloids (varying between species) to deter most herbivores,[11] a number of such animals have evolved the ability to feed on Nicotiana species without being harmed. Nonetheless, tobacco is unpalatable to many species and therefore some tobacco plants (chiefly Tree Tobacco, N. glauca) have become established as invasive species in some places.

In the nineteenth century, young tobacco plantings came under increasing attack from flea beetles (Epitrix cucumeris and/or Epitrix pubescens), causing destruction of half the United States tobacco crop in 1876. In the years afterward, many experiments were attempted and discussed to control the flea beetle. By 1880, it was discovered that replacing the branches with a frame covered by thin fabric would effectively protect plants from the beetle. This practice spread until it became ubiquitous in the 1890s.

Lepidoptera whose caterpillars feed on Nicotiana include:

These are mainly Noctuidae and some Sphingidae.

Cultivation[edit]

Nicotiana × sanderae ornamental cultivar

Several species of Nicotiana, such as N. sylvestris,[12] N. alata 'Lime Green'[13][14] and N. langsdorffii are grown as ornamental plants, often under the name of Flowering Tobacco.[4][15] They are popular vespertines (evening bloomers), their sweet-smelling flowers opening in the evening to be visited by hawkmoths and other pollinators. In temperate climates they behave as annuals (Hardiness 9a-11).[16] The hybrid cultivars Domino Series [17] and 'Lime Green'[14] have gained the Royal Horticultural Society's Award of Garden Merit.

Garden varieties are derived from N. alata (e.g. 'Niki' and 'Saratoga' series) and more recently from Nicotiana x sanderae (e.g. 'Perfume' and 'Domino' series).[15]

See also[edit]

References[edit]

  1. ^ "Nicotiana". Uniprot. Retrieved 2014-02-08. 
  2. ^ "Nicotiana L.". Germplasm Resources Information Network. United States Department of Agriculture. 2006-04-13. Retrieved 2010-06-03. 
  3. ^ Sunset Western Garden Book, 1995:606–607
  4. ^ a b Fine Gardening: Nicotiana
  5. ^ The Plant List
  6. ^ a b c d e f g h i j k l m n o p q r Knapp et al. (2004) Nomenclatural changes and a new sectional classification in Nicotiana (Solanaceae) Taxon. 53(1):73-82.
  7. ^ a b Bot, Ann (2003). Molecular Systematics, GISH and the Origin of Hybrid Taxa in Nicotiana (Solanaceae) 92 (1). pp. 107–127. doi:10.1093/aob/mcg087. 
  8. ^ Clausen, R.E. (1928) Interspecific hybridization in Nicotiana. VII. The cytology of hybrids of the synthetic species, digluta, with its parents, glutinosa and tabacum. Univ. Cal. Pub. Botany. 11(10):177-211.
  9. ^ "GRIN Species Records of Nicotiana". Oxford Journals (United States Department of Agriculture). Retrieved 2010-11-30. 
  10. ^ Austin, Gregory. "Chronology of Psychoactive Substance Use". Teachers College Columbia University. Archived from the original on 2011-08-09. Retrieved 2014-02-08. 
  11. ^ Panter, KE; Keeler, RF; Bunch, TD; Callan, RJ (1990). "Congenital skeletal malformations and cleft palate induced in goats by ingestion of Lupinus, Conium and Nicotiana species". PubMed 28 (12). pp. 1377–1385. PMID 2089736. 
  12. ^ RHS: Nicotiniana sylvestris
  13. ^ Fine Gardening: Nicotiana alata
  14. ^ a b "Nicotiana 'Lime Green'". RHS Gardening. Retrieved July 23, 2014. 
  15. ^ a b The National Garden Bureau
  16. ^ Dave's Garden
  17. ^ "Nicotiana Domino Series". RHS Gardening. Retrieved July 23, 2014. 

Bibliography[edit]

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