Zobrazeno 1 - 10
of 2 981
pro vyhledávání: '"compound-specific"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract Understanding the nitrogen isotopic variations of individual amino acids (AAs) is essential for utilizing the nitrogen isotope values of individual amino acids (δ15N-AA) as source indicators to identify proteinaceous matter originating from
Externí odkaz:
https://doaj.org/article/af23165cbd514381aa616682447bc76a
Autor:
Sudip Acharya, Paul Strobel, Maximilian Prochnow, Steffen Taut, Michael Zech, Antje Schwalb, Roland Zech
Publikováno v:
Quaternary Science Advances, Vol 15, Iss , Pp 100231- (2024)
Lipid biomarkers are valuable proxies for reconstructing paleoclimate and paleoenvironmental changes as well as human impact. However, little attention has been paid on evaluating how the combination of biomarkers can be used to reconstruct various a
Externí odkaz:
https://doaj.org/article/b8f960c5cb3544ae8d5c015fe3eb35f6
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract Ecological applications of compound-specific stable isotope analysis (CSIA) of amino acids (AAs) include 1) tracking carbon pathways in food webs using essential AA (AAESS) δ13C values, and 2) estimating consumer trophic position (TP) by co
Externí odkaz:
https://doaj.org/article/cf486ed3f4a947eb98e761072437840d
Publikováno v:
Ecosphere, Vol 15, Iss 8, Pp n/a-n/a (2024)
Abstract Nitrogen isotope analyses of amino acids (δ15N‐AA) are being increasingly used to decipher trophic dynamics. Interpretation of δ15N‐AA in consumers relies on the assumption that consumer physiological status and nutritional status of p
Externí odkaz:
https://doaj.org/article/e2270c9050bc4748bb5cf9f0f2b0817f
Autor:
Elizabeth Phillips, Katherine Picott, Steffen Kümmel, Olivia Bulka, Elizabeth Edwards, Po‐Hsiang Wang, Matthias Gehre, Ivonne Nijenhuis, Barbara S. Lollar
Publikováno v:
MicrobiologyOpen, Vol 13, Iss 4, Pp n/a-n/a (2024)
Abstract Carbon and chlorine isotope effects for biotransformation of chloroform by different microbes show significant variability. Reductive dehalogenases (RDase) enzymes contain different cobamides, affecting substrate preferences, growth yields,
Externí odkaz:
https://doaj.org/article/693d8334ef584486a415d59e6d0f0388
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
IntroductionThe carbon isotope ratios (δ13C) of essential amino acids (EAAs), including valine, leucine, isoleucine, threonine, and phenylalanine, in producers are crucial for explaining food-web structures in marine ecosystems. However, few studies
Externí odkaz:
https://doaj.org/article/85083495ca904d7f9d275c48d326e0fe
Autor:
Tengteng Wang, Chuhan Lin, Han Zhang, Jiying Li, Lifang Wang, Yaohua Luo, Jie Liu, Jiaheng Shen, Tiantian Tang
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
As a response of the coastal oceans to more severe anthropogenic disturbance, increasing coastal primary production has been more frequently observed in recent years. This raises the question of how this progressive change reshapes the long-term carb
Externí odkaz:
https://doaj.org/article/a16f60fff48a4febb73d5f46b3bd843f
Autor:
Jose Antonio Canseco, Edwin J. Niklitschek, Claudio Quezada-Romegialli, Chris Yarnes, Chris Harrod
Publikováno v:
PeerJ, Vol 12, p e17372 (2024)
Quantifying the tropic position (TP) of an animal species is key to understanding its ecosystem function. While both bulk and compound-specific analyses of stable isotopes are widely used for this purpose, few studies have assessed the consistency be
Externí odkaz:
https://doaj.org/article/202ec615d43c4e4cb9f8926c19c2111d
Autor:
Meng Yu, Timothy I. Eglinton, Pengfei Hou, Negar Haghipour, Hailong Zhang, Zicheng Wang, Meixun Zhao
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 8, Pp n/a-n/a (2024)
Abstract The fates of terrestrial organic carbon (OCterr) during fluvial transport from land to ocean are still not well constrained. This study systematically examines the evolution and dynamics of OCterr along the river‐estuary‐coastal ocean co
Externí odkaz:
https://doaj.org/article/82b6134577ff4c10b6e025bf32445f54
Publikováno v:
Methods in Ecology and Evolution, Vol 14, Iss 9, Pp 2421-2434 (2023)
Abstract Income and capital breeding represent opposing ends of a continuum of reproductive strategies. Quantifying nutrient allocation to reproduction is challenging, but recent advances in compound‐specific stable isotope analysis hold promise fo
Externí odkaz:
https://doaj.org/article/0f5f8895c3204e5a988b83599afea15d