Results 31 to 40 of about 410 (116)

Metabolism Modeling in Rivers With Unsteady Flow Conditions and Transient Storage Zones

Journal of Geophysical Research: Biogeosciences, Volume 128, Issue 3, March 2023., 2023
Abstract Whole‐stream metabolism characterizes energy and carbon transformations, thus providing an estimate of the food base and CO2 emission sources from streams and rivers. Metabolism models are generally implemented with a steady flow assumption that does not hold true for many systems with sub‐daily flow variation, such as river sections ...
Devanshi Pathak, Benoît O. L. Demars
wiley   +1 more source

Climate‐driven shifts in kelp forest composition reduce carbon sequestration potential

Global Change Biology, Volume 28, Issue 18, Page 5514-5531, September 2022., 2022
While warm temperate kelp exports up to 71% more carbon per plant, it decomposes up to 155% faster than its boreal congeners. Faster decomposition causes the detrital photosynthetic apparatus of warm temperate kelp to be overwhelmed 20 days after export, while detritus of cold temperate species maintains carbon assimilation. The predicted prevalence of
Luka Seamus Wright, Albert Pessarrodona, Andy Foggo   +2 more
wiley   +1 more source

High‐resolution water‐quality and ecosystem‐metabolism modeling in lowland rivers

Limnology and Oceanography, Volume 67, Issue 6, Page 1313-1327, June 2022., 2022
Abstract High‐resolution monitoring of water quality and ecosystem functioning over large spatial scales in expansive lowland river catchments is challenging. Therefore, we need modeling tools to predict these processes at locations where observations are absent.
Devanshi Pathak, Michael Hutchins, Lee E. Brown, Matthew Loewenthal, Peter Scarlett, Linda Armstrong, David Nicholls, Mike Bowes, François Edwards, Gareth Old   +9 more
wiley   +1 more source

Double Connective Tissue Graft to Treat Deep Coronal‐Radicular Abrasion: A 19‐Year Follow‐Up Case Report

Clinical Advances in Periodontics, Volume 11, Issue 3, Page 171-175, September 2021., 2021
Introduction When gingival recession is combined with cervical abrasion, root coverage outcomes are less predictable due to the challenging adaptation of the connective tissue graft (CTG) to the marked root step. Removing additional tooth structure can improve soft‐tissue adaptation with the downside of a possible increase in dental hypersensitivity or
Debora Franceschi, Giovan Paolo Pini Prato, Riccardo Di Gianfilippo   +2 more
wiley   +1 more source

pGpp does not inhibit SasB basal activity.

, 2022
(Top) representative TLC analysis of wildtype SasB activity in the absence of allosteric activation (no pppGpp added) and with increasing concentrations of pGpp (uM). (Bottom) ratio of ppGpp calculated using the formula, ppGpp/ATP + ppGpp.
Jonathan Dworkin (185788), Simon Diez (12575393), Abigail Whalen (12575399), Molly Hydorn (12575396)   +3 more
core   +1 more source

Inducible expression of (pp)pGpp synthetases in Staphylococcus aureus is associated with activation of stress response genes [PDF]

, 2020
Abstract The stringent response is characterized by the synthesis of the messenger molecules pppGpp, ppGpp or pGpp (here collectively designated (pp)pGpp). The phenotypic consequences resulting from (pp)pGpp accumulation vary among species and can be mediated by different underlying mechanisms.
Horvatek, Petra, Hanna, Andrew Magdy Fekry, Gratani, Fabio Lino, Keinhörster, Daniela, Korn, Natalya, Borisova, Marina, Mayer, Christoph, Rejman, Dominik, Mäder, Ulrike, Wolz, Christiane   +9 more
openaire   +1 more source

Isopentenol Utilization Pathway for the Production of Linalool in Escherichia coli Using an Improved Bacterial Linalool/Nerolidol Synthase

ChemBioChem, Volume 22, Issue 13, Page 2325-2334, July 1, 2021., 2021
Linalool is a monoterpenoid used as fragrance ingredient, and a promising source for alternative fuels. Here we explore the artificial isoprenol utilization pathway to produce linalool in Escherichia coli using the linalool/nerolidol synthase from Streptomyces clavuligerus.
Clara A. Ferraz, Nicole G. H. Leferink, Iaroslav Kosov, Nigel S. Scrutton   +3 more
wiley   +1 more source

Elucidating the biochemical basis of trans‐16:1 fatty acid change in leaves during cold acclimation in wheat

Plant-Environment Interactions, Volume 2, Issue 3, Page 101-111, June 2021., 2021
Abstract In plant cells, phosphatidylglycerol (PG) in the chloroplast has a characteristic trans‐∆3‐hexadecenoic acid (t16:1) at the sn‐2 position. The t16:1 content in wheat leaf tissues decreases during cold treatment, but the significance of this fatty acid compositional change and the underlying biochemical mechanism remains poorly understood ...
Qiang Li, Wenyun Shen, Ioannis Mavraganis, Liping Wang, Peng Gao, Jie Gao, Dustin Cram, Yifeng Li, Ziying Liu, David Brian Fowler, Youlian Pan, Jitao Zou   +11 more
wiley   +1 more source

pGpp inhibits the allosteric activation of SasB by pppGpp.

, 2022
(A) Representative TLC of nucleotides present following incubation of wildtype SasB with [α-32P]-ATP and GDP in the presence or absence of pppGpp and increasing concentrations of pGpp (μM) (top).
Jonathan Dworkin (185788), Simon Diez (12575393), Abigail Whalen (12575399), Molly Hydorn (12575396)   +3 more
core   +1 more source

Glycerolipid profile differences between perennial and annual stem zones in the perennial model plant Arabis alpina

Plant Direct, Volume 5, Issue 1, January 2021., 2021
Abstract The perennial life style is a successful ecological strategy, and Arabis alpina is a recently developed model Brassicaceae species for studying it. One aspect, poorly investigated until today, concerns the differing patterns of allocation, storage, and metabolism of nutrients between perennials and annuals and the yet unknown signals that ...
Anna Sergeeva, Tabea Mettler‐Altmann, Hongjiu Liu, Hans‐Jörg Mai, Petra Bauer   +4 more
wiley   +1 more source