Photosynthetic primary production in the Mesoproterozoic
New Phytologist, EarlyView.Summary The Mesoproterozoic atmosphere had more CO2 and less O2 than at present. While the upper ocean was oxygenated, the deeper ocean was euxinic or ferruginous. Primary production was performed by Chlorobia, Cyanobacteria, Proteobacteria, and Archaeplastida.
Patricia Sánchez‐Baracaldo +1 more
wiley +1 more source
Unusual sulfur isotope effect and extremely high critical temperature in H3S superconductor. [PDF]
Sci Rep, 2018 Szczęśniak R, Durajski AP.
europepmc +1 more source
Plant, Cell &Environment, EarlyView.ABSTRACT Mycorrhizal symbiosis shapes plant growth and stress resilience. Here, we compared physiological and molecular responses of poplars (P. x canescens) colonised by Paxillus involutus (Pi) or Cenococcum geophilum (Cg) under control conditions, drought stress and recovery.
Huili Shi, Zhuchou Lu, Andrea Polle
wiley +1 more source
Homogeneous sulfur isotope signature in East Antarctica and implication for sulfur source shifts through the last glacial-interglacial cycle. [PDF]
Sci Rep, 2019 Ishino S +8 more
europepmc +1 more source
Direct evidence of singlet molecular oxygen [O2 (1Δg)] production from UVA excited 6‐thioguanine
Photochemistry and Photobiology, EarlyView.6‐Thioguanine (6‐TGua) is incorporated into DNA as a purine analogue, inhibiting cell replication. Patients treated with 6‐TGua are more prone to developing skin cancer due to the photoexcitation of 6‐TGua by UVA radiation (as illustrated in the Jablonski diagram). Upon exposure to UVA, the excited 6‐TGua generates 1O2.
André L. Lopes +6 more
wiley +1 more source
A simple and reliable method reducing sulfate to sulfide for multiple sulfur isotope analysis. [PDF]
Rapid Commun Mass Spectrom, 2018 Geng L +7 more
europepmc +1 more source
Sedimentology, EarlyView.ABSTRACT Thin ferruginous sandy crusts are common on top of sandstone beds in the Early Permian post‐glacial deposits of the Paraná Basin in southern Brazil. These crusts usually preserve wrinkle structures, suggesting that they might be a product of microbial mediation.
Patrícia Weschenfelder +2 more
wiley +1 more source
Variability in sulfur isotope composition suggests unique dimethylsulfoniopropionate cycling and microalgae metabolism in Antarctic sea ice. [PDF]
Commun Biol, 2018 Carnat G +6 more
europepmc +1 more source
Terra Nova, EarlyView.ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen +3 more
wiley +1 more source
An evaluation on the extraction capability of anion exchange membranes for high-precision sulfur isotope measurement by multiple-collector inductively coupled plasma mass spectrometry. [PDF]
RSC Adv, 2019 Yang LW, Liu C, Yang T.
europepmc +1 more source