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Latest Nicotiana Stories

Tobacco Plants Advertise They Are Ready To Attack Leafhoppers
2012-05-23 10:25:32

Like blood-sucking insects, herbivores evaluate their host's readiness for defense Tobacco: actually pretty bad food for leafhoppers Empoasca sp. is not a typical pest of wild tobacco (Nicotiana attenuata). When this plant grows in its natural habitats in North America, however, it is attacked by tobacco hornworm larvae (Manduca sexta). This specialist insect is resistant to the toxic nicotine, which the plant produces as a defense against its enemies. When researchers from the Max...

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2011-04-26 10:18:02

A plant's sugary offering betrays caterpillars to predatory ants Trichomes, hair-like projections on leaves, are part of a plant's defense against herbivores: they can be obstacles, traps, or reservoirs for toxic substances. The hairs of wild tobacco Nicotiana attenuata contain primarily acyl sugars, which are composed of the common sugar, sucrose, bound to branched chain aliphatic acids, compounds that give baby vomit its distinctive odor. Tiny, freshly hatched caterpillars consume these...

2009-03-31 11:13:34

A gel derived from a close relative to the tobacco plant is being tested as an affordable preventative measure for HIV, U.S. researchers said. Kenneth Palmer, a senior scientist in the University of Louisville's Owensboro Cancer Research Program, has published research that suggests growing large quantities of the protein griffithsin found in the transgenic plant Nicotiana benthamiana can prevent human immunodeficiency virus from infecting cells of the immune system, the university's James...


Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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