laevis

The plants: Natives Chasmanthium latifolium Northern Sea Oats, a grass with dancing seedheads, and Aster laevis 'Bluebird,' a hit with butterflies, bees and birds, are paired with Carex testacea 'Prairie Fire' and Sedum sichotense, whose colors intensify as temperatures drop; bright chartreuse Lysimachia nummularia 'Aurea' adds to the show.

Mums Not the Word 2011

Researchers are working to develop animal models of gene regulation by thyroid hormone including one that studies the metamorphosis from tadpole (above) to frog of the African clawed frog (Xenopus laevis). image credit: Dennis Kunkel

Environmental effects on the thyroid 2009

The Green Man loves the spectacular beauty of Amelanchier laevis or Allegheny Serviceberry in the Spring.

LOW-MANAGEMENT ALLEGHENY SERVICEBERRY FOR BEAUTY ALL 4 SEASONS Pooky 2009

Together the two developed a means to cut a gene from one organism the frog Xenopus laevis in their early experiments and paste it into a plasmid.

The Nature of Technology W. Brain Arthur 2009

Amelanchier laevis is found in moist woods and meadows, but tolerates most any garden situation.

LOW-MANAGEMENT ALLEGHENY SERVICEBERRY FOR BEAUTY ALL 4 SEASONS Pooky 2009

Howdeshell is working to develop a model of the African clawed frog, Xenopus laevis, to shed light on gene regulation by thyroid hormone in human processes including brain development.

Environmental effects on the thyroid 2009

Characterization of Atrazine-induced gonadal malformations in African Clawed frogs (Xenopus laevis) and comparisons with effects of an androgen Antagonist (Cyproterone Acetate) and Exogenous Estrogen (17b-Estradiol): Support for the Demasculinization/Feminization Hypothesis.

Atrazine in the environment 2009

Smooth prickly pear (Opuntia phaeacantha var. laevis) and live-forever (Dudleya spp.) grow on vertical cliffs or within the canopies of armored plants.

Adaptations of desert plants 2009

He reported that just 0.1 parts per billion (ppb) of atrazine in male leopard frogs (Rana pipiens) and in African clawed frogs (Xenopus laevis), caused gonadal deformities, multiple testes, nonpigmented ovaries, hermaphrodites, and chemical castration.

Atrazine in the environment 2009

Dale and University of Warwick developmental biologist Elizabeth Jones, along with colleagues, discovered the eye-switch while investigating how "ectoenzyme" molecules located on the external surface of cells contributed to the development of locomotion in the African clawed frog (Xenopus laevis).

Scientists Envision Growing Human Eyeballs | Impact Lab 2007