Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
2007 1
2009 1
2021 1
2024 0

Text availability

Article attribute

Article type

Publication date

Search Results

3 results

Results by year

Filters applied: . Clear all
Page 1
Urea metabolism in beef steers grazing Bermudagrass, Caucasian bluestem, or gamagrass pastures varying in plant morphology, protein content, and protein composition.
Huntington GB, Burns JC, Archibeque SL. Huntington GB, et al. J Anim Sci. 2007 Aug;85(8):1997-2004. doi: 10.2527/jas.2006-597. Epub 2007 Apr 12. J Anim Sci. 2007. PMID: 17431040
Urea production and recycling in these steers responded more to the N concentration in the grasses than to differences in plant protein fractions. There was no evidence of improved N capture by the steers due to changes in the leaf:stem ratio among the grasses at the herba …
Urea production and recycling in these steers responded more to the N concentration in the grasses than to differences in plant prote …
Why are non-photosynthetic tissues generally 13C enriched compared with leaves in C3 plants? Review and synthesis of current hypotheses.
Cernusak LA, Tcherkez G, Keitel C, Cornwell WK, Santiago LS, Knohl A, Barbour MM, Williams DG, Reich PB, Ellsworth DS, Dawson TE, Griffiths HG, Farquhar GD, Wright IJ. Cernusak LA, et al. Funct Plant Biol. 2009 Mar;36(3):199-213. doi: 10.1071/FP08216. Funct Plant Biol. 2009. PMID: 32688639
Non-photosynthetic, or heterotrophic, tissues in C(3) plants tend to be enriched in (13)C compared with the leaves that supply them with photosynthate. This isotopic pattern has been observed for woody stems, roots, seeds and fruits, emerging leaves, and parasitic plants i …
Non-photosynthetic, or heterotrophic, tissues in C(3) plants tend to be enriched in (13)C compared with the leaves that supply them with pho …