Fichièr:Service botanist Mara Alexander taking a water sample (9666514088).jpg

Fichièr d'origina(6 000 × 4 000 pixèl, talha del fichièr: 14,96 Mo, tipe MIME: image/jpeg)

Descripcion

Descripcion

Researchers at the University of North Carolina at Asheville are working with the U.S. Fish & Wildlife Service to learn more about rare pitcher plants.

Pitcher plants have a modified leaf in the shape of a pitcher. The pitcher is lined with tiny, downward-facing hairs. In many pitcher plants, an insect is attracted to the pitcher's scent, begins climbing down, and the hairs prevent it from reversing course, leaving its only option to go deeper, until it comes to the pool of enzymes, is digested, and feeds the plant. However, in other pitcher plants, the plants get others to do much of this work. In the purple pitcher plant, which is found in western North Carolina, the pool of water at the base of the pitcher is home to a community of life, with 165 species found living within its pitchers. In these cases, it's this community of life that does the digesting, and the plant absorbs nutrients released as these other species feed and grow.

The purple pitcher plant hybridizes with the endangered mountain sweet pitcher plant, which uses enzymes to digest insects. Two different pitcher plants. Two different feeding strategies. What happens in their offspring? That's one of the questions the researchers hope to answer. By periodically collecting and examining water from the pitchers, they'll gain an understanding of how both communities of life and enzyme solutions vary among the purple, mountain sweet, and hybrid pitcher plants.
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Service botanist Mara Alexander taking a water sample

Autor U.S. Fish and Wildlife Service Southeast Region

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This image, originally posted to Flickr, was reviewed on 24 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date.
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Aquesta imatge o enregistrament és obra d'un empleat de l'U.S. Fish and Wildlife Service feta durant la prestació oficial de servei. Com a obra del govern federal dels EUA, el fitxer és en el domini públic. Per a més informació vegeu l'avís legal del Fish and Wildlife Service.

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United States Fish and Wildlife Service
United States Fish and Wildlife Service

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actual24 novembre de 2013 a 03.20Miniatura per la version del 24 novembre de 2013 a 03.206 000×4 000 (14,96 Mo)File Upload Bot (Magnus Manske)Transferred from Flickr by User:AlbertHerring

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