Results 21 to 30 of about 14,867 (279)

Hydrogen and Oxygen Isotope Characteristics of Different Organs of Panax Notoginseng and its Relationship with Irrigation Water

Journal of Isotopes, 2021
: Analyze the characteristics, correlation and influencing factors of various organs (stems and leaves, reed heads, tubers, tendons, fibrous roots) of Panax notoginseng from different origins and stable hydrogen and oxygen isotopes in irrigation water ...
LI Xinyue;LIANG Shewang;LI Dongxue;GUO Ting;ZHAO Huiyu;GUO Chunping;HE Zhongjun
doaj   +1 more source

Isolation of genes encoding β-D-xylanase, β-D-xylosidase and α-L-arabinofuranosidase activities from the rumen bacteriumPrevotella ruminicolaB₁4 [PDF]

FEMS Microbiology Letters, 1995
Prevotella ruminicola B14 is a strictly anaerobic, Gram-negative, polysaccharide-degrading rumen bacterium. Xylanase activity in this strain was found to be inducible, the specific activity of cells grown on xylan being increased at least 20-fold by comparison with cells grown on glucose.
Ales Gasparic, Romana Marinsek-Logar, Jennifer Martin, R. John Wallace, Franc V. Nekrep, Harry J. Flint   +5 more
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FIRST ISOTOPE-HYDROGEOCHEMICAL DATA ON THE NATURAL WATERS OF THE SOUTH-EAST SLOPE OF THE CHEKANOVSKY RIDGE (ARCTIC AREAS OF THE SIBERIAN PLATFORM)

Известия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the study is caused by the obtaining of the previously unexplored isotope-hydrogeochemical data on the natural waters of the south-east slope of the Chekanovsky ridge (Arctic regions of the Siberian Platform). The study area is difficult
Dmitry A. Novikov, Anastasia A. Maksimova, Aleksandr N. Pyrayev, Petr A. Yan   +3 more
doaj   +1 more source

Simulation Experiment Study on Impacting the δD Value of Aromatic Compounds

Geofluids, 2023
Little is known about the effects of sedimentary environment and maturity on δD values of aromatic compounds deposited in geological bodies. Our simulation experiments showed that the δD value of pyrolytic polycyclic aromatic hydrocarbons (PAHs) was ...
Yi Duan, Yingzhong Wu, Lantian Xing, Yingqin Wu, Yang Zhao, Zhongping Li, Lanhua Ma   +6 more
doaj   +1 more source

The MUSICA IASI {H2O, δD} pair product [PDF]

, 2021
We present a global and multi-annual space-borne dataset of tropospheric {H2O, δD} pairs that is based on radiance measurements from the nadir thermal infrared sensor IASI (Infrared Atmospheric Sounding Interferometer) onboard the Metop satellites of ...
Sepúlveda Hernández, Eliezer, Schneider, Matthias, Hase, Frank, García Rodríguez, Omaira Elena, Knippertz, Peter, Braesicke, Peter, Khosrawi, Farahnaz, Ertl, Benjamin, Diekmann, Christopher, Eliezer Sepúlveda, Peter Knippertz, Matthias Schneider, Omaira García, Peter Braesicke, Frank Hase, Benjamin Ertl, Farahnaz Khosrawi, Christopher J. Diekmann   +17 more
core   +1 more source

A β-d-xylosidase from the thermophileCaldocellum saccharolyticumexpressed inEscherichia coli [PDF]

FEMS Microbiology Letters, 1990
The gene coding for a β-d-xylosidase (E.C. 3.2.1.37) of the thermophile Caldocellum saccharolyticum was isolated previously as part of a gene cluster which has been cloned in Escherichia coli. The enzyme characteristics were determined in E. coli using toluenized cell extracts. The pH optimum was 6.5 and temperature optimum 70°C.
Ernst Lüthi, Peter L. Bergquist
openaire   +1 more source

A triple-isotope approach to predict the breeding origins of European bats. [PDF]

PLoS ONE, 2012
Despite a commitment by the European Union to protect its migratory bat populations, conservation efforts are hindered by a poor understanding of bat migratory strategies and connectivity between breeding and wintering grounds.
Ana G Popa-Lisseanu, Karin Sörgel, Anja Luckner, Leonard I Wassenaar, Carlos Ibáñez, Stephanie Kramer-Schadt, Mateusz Ciechanowski, Tamás Görföl, Ivo Niermann, Grégory Beuneux, Robert W Mysłajek, Javier Juste, Jocelyn Fonderflick, Detlev H Kelm, Christian C Voigt   +14 more
doaj   +1 more source

Insolubilization of exogenous primer dextran with 1,3-α-d-glucan synthase fromStreptococcus mutans [PDF]

FEMS Microbiology Letters, 1986
The water-insolubilization mechanism of exogenous primer dextran with 1,3-α-d-glucan synthase (EC 2.4.1.-) from Streptococcus mutans was studied. The 1,3-α-d-glucan synthase solution, containing sucrose and exogenous primer dextran, was incubated briefly. Water-insoluble glucan was synthesized.
Nobuhiro Hanada, Tadamichi Takehara, Miyuki Itoh, Eiichi Saeki   +3 more
openaire   +1 more source

Characteristics of δ18O and δD in precipitation and its water vapor sources in the upper Urumqi River basin,Eastern Tianshan

Shui kexue jinzhan, 2013
The stable isotopes characteritics of hydrogen and oxygen in precipitation is an important aspect of the regional isotope hydrologic cycle. The variations of δD and δ18O values in event-based precipitation samples are analyzed. The samples were collected
FENG Fang, LI Zhongqin, JIN Shuang, FENG Qi, LIU Wei   +4 more
doaj   +1 more source

Coinduction of α-L-arabinofuranosidase and α-D-galactosidase formation inTrichoderma reeseiRUT C-30 [PDF]

FEMS Microbiology Letters, 1994
Formation of α-L-arabinosidase can be induced in Trichoderma reesei by growing the fungus on L-arabinose or dulcitol, and by adding L-arabinose, L-arabitol, D-galactose, or dulcitol ot non-growing mycelia. The same conditions also stimulated the formation of α-D-galactosidase, but not that of various other enzymes involved in hemicellulose degradation.
Doris Kristufek, Regina Hodits, Christian P. Kubicek   +2 more
openaire   +1 more source