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The use of nitrogen-15 in microbial natural product discovery and biosynthetic characterization [PDF]

Frontiers in Microbiology, 2023
This mini-review covers the use of nitrogen-15 in bacterial and fungal natural product discovery and biosynthetic characterization from 1970 to 2022. Nitrogen is an important element in a number of bioactive and structurally intriguing natural products ...
Kalindi D. Morgan
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Experimental Design and Interpretation of Terrestrial Ecosystem Studies Using 15N Tracers: Practical and Statistical Considerations

Frontiers in Environmental Science, 2021
The stable isotope 15N is an extremely useful tool for studying the nitrogen (N) cycle of terrestrial ecosystems. The affordability of isotope-ratio mass spectrometry has increased in the last decades and routine measurements of δ15N with an accuracy ...
Patrick Schleppi, Wim W. Wessel
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Multivariate analysis of stable isotope data in the traceability process for birds=Análise multivariada em dados de isótopos estáveis no processo de rastreabilidade em aves [PDF]

Acta Scientiarum: Animal Sciences, 2012
Isotope analysis has proved to be an extremely important tool in the traceability process; however, statistical analyses of the results show discrepancies, as the data depend on and originate from several chemical elements such as carbon, hydrogen ...
Maria Márcia Pereira Sartori, Juliana Célia Denadai, Amélia Maria Lima Gracia, Alfredo Sampaio Carrijo, Carlos Ducatti   +4 more
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Nitrogen Utilization from Ammonium Nitrate and Urea Fertilizer by Irrigated Sugarcane in Brazilian Cerrado Oxisol

Agriculture, 2020
Sugarcane is the most promising among renewable biofuel-producing crops. An adequate availability of water and nutrients, especially nitrogen (N), is of utmost importance.
Nelmício Furtado da Silva, Edson Cabral da Silva, Takashi Muraoka, Marconi Batista Teixeira, Frederico Antonio Loureiro Soares, Fernando Nobre Cunha, Joseph Adu-Gyamfi, Wendson Soares da Silva Cavalcante   +7 more
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Isotopic Niche Segregation among Darwin’s Finches on Santa Cruz Island, Galápagos

Diversity, 2021
Darwin’s finches are a classic example of adaptive radiation involving differential use of dietary resources among sympatric species. Here, we apply stable isotope (δ13C, δ15N, and δ2H) analyses of feathers to examine ecological segregation among eight ...
Mariana Villegas, Catherine Soos, Gustavo Jiménez-Uzcátegui, Shukri Matan, Keith A. Hobson   +4 more
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Rastreability of bovine meat and bone meal using the stable isotope technique in egg production

Scientia Agricola, 2021
The present study aimed to verify whether the inclusion of other ingredients in the diet of laying hens could interfere with the traceability of bovine meat and bone meal (BMBM) in eggs through stable carbon and nitrogen isotope analysis. Two hundred and
Juliana Célia Denadai, Julianna Santos Batistioli, José Roberto Sartori, Luciene Aparecida Madeira, Maria Márcia Pereira Sartori, Carla Cachoni Pizzolante, Sérgio Kenji Kakimoto, Armando Carlos Contin Neto, Vladimir Eliodoro Costa   +8 more
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Marcha de absorção do nitrogênio do solo, do fertilizante e da fixação simbiótica em feijão-caupi (Vigna unguiculata (L.) walp.) e feijão-comum (Phaseolus vulgaris L.) determinada com uso de 15N Uptake rate of nitrogen from soil and fertilizer, and n derived from symbiotic fixation in cowpea (Vigna unguiculata (L.) walp.) and common bean (Phaseolus vulgaris L.) determined using the 15N isotope

Revista Brasileira de Ciência do Solo, 2009
O feijão-comum e o feijão-caupi estão entre as principais fontes de proteína vegetal para grande parte da população mundial, sobretudo aquela de baixa renda, e o N é o principal constituinte de proteínas. Os objetivos deste trabalho foram de avaliar, por
Marciano de Medeiros Pereira Brito, Takashi Muraoka, Edson Cabral da Silva   +2 more
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Rastreabilidade da farinha de carne e ossos bovinos em ovos de poedeiras alimentadas com ingredientes alternativos Traceability of bovine meat and bone meal in eggs from laying hens fed with alternative ingredients

Pesquisa Agropecuária Brasileira, 2009
O objetivo deste trabalho foi detectar traços de farinha de carne e ossos bovinos, em ovos de poedeiras alimentadas com dietas comerciais com inclusão de ingredientes vegetais alternativos e leveduras.
Juliana Célia Denadai, Carlos Ducatti, José Roberto Sartori, Antonio Celso Pezzato, Cleusa Móri, Rosana Gottmann, Mariela Akie Okino Mituo   +6 more
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No-Tillage Improvement of Nitrogen Absorption and Utilization in a Chinese Mollisol Using ¹⁵N-Tracing Method

Atmosphere, 2022
To better understand the mechanism of nitrogen (N) distribution, absorption, utilization and loss in fertilizer under different tillage practices, a study was conducted to quantitatively explore the fate of fertilizer N in the soil–plant–atmosphere using
Dandan Huang, Xuewen Chen, Shixiu Zhang, Yan Zhang, Yan Gao, Yang Zhang, Aizhen Liang   +6 more
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Establishing Winter Origins of Migrating Lesser Snow Geese Using Stable Isotopes

Avian Conservation and Ecology, 2012
Increases in Snow Goose (Chen caerulescens) populations and large-scale habitat changes in North America have contributed to the concentration of migratory waterfowl on fewer wetlands, reducing resource availability, and enhancing risks of disease ...
Viviane Hénaux, Larkin A. Powell, Mark P. Vrtiska, Keith A. Hobson   +3 more
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