Results 31 to 40 of about 45,128 (306)

Diatoms synthesize sterols by inclusion of animal and fungal genes in the plant pathway [PDF]

open access: yes, 2020
Diatoms are ubiquitous microalgae that have developed remarkable metabolic plasticity and gene diversification. Here we report the first elucidation of the complete biosynthesis of sterols in the lineage.
, Angela   +7 more
core   +1 more source

The last glacial-interglacial cycle in Lake Ohrid (Macedonia/Albania): testing diatom response to climate [PDF]

open access: yes, 2010
Lake Ohrid is a site of global importance for palaeoclimate research. This study presents results of diatom analysis of a ca. 136 ka sequence, Co1202, from the northeast of the lake basin.
Cvetkoska, A.   +4 more
core   +5 more sources

Hydrological connectivity inferred from diatom transport through the riparian-stream system [PDF]

open access: yes, 2015
Funding for this research was provided by the Luxembourg National Research Fund (FNR) in the framework of the BIGSTREAM (C09/SR/14), ECSTREAM (C12/SR/40/8854) and CAOS (INTER/DFG/11/01) projects.
Ector, L.   +6 more
core   +3 more sources

Comparative algological and bacteriological examinations on biofilms developed on different substrata in a shallow soda lake [PDF]

open access: yes, 2008
According to the European Water Framework Directives, benthic diatoms of lakes are a tool for ecological status assessment. In this study, we followed an integrative sample analysis approach, in order to find an appropriate substratum for the water ...
A Cattaneo   +36 more
core   +1 more source

Insights into the transfer of silicon isotopes into the sediment record [PDF]

open access: yesBiogeosciences, 2016
The first δ30Sidiatom data from lacustrine sediment traps are presented from Lake Baikal, Siberia. Data are compared with March surface water (upper 180 m) δ30SiDSi compositions for which a mean value of +2.28‰ ±  0.09 (95 % confidence) is derived.
V. N. Panizzo   +6 more
doaj   +1 more source

Flora algal de la cuenca del río Guadalquivir: Su valor en la determinación de la ecorregionalización de la cuenca [PDF]

open access: yes, 2018
In compliance with the Water Framework Directive of the European Union, we needed to diagnose the ecologic quality of the different sections of the rivers of the Guadalquivir basin. In order to establish a regional classification of the water bodies by a
Casco, Maria Adela   +5 more
core   +2 more sources

Evaluation of L/D ratio in a water-related case for the differentiation between drowning and postmortem immersion

open access: yesForensic Science International: Synergy, 2019
It is a difficult task to determine the cause of death for decomposed bodies found in water. Diatom test has been shown to provide supportive evidence for the diagnosis of drowning.
Zhigang Li   +9 more
doaj   +1 more source

Dynamic diatom response to changing climate 0–1.2 Ma at Lake El'gygytgyn, Far East Russian Arctic [PDF]

open access: yesClimate of the Past, 2013
The Lake El'gygytgyn sediment record contains an abundant diatom flora through most intervals of the lake's history, providing a means to create and test hypotheses concerning the lake's response to changing climates.
J. A. Snyder   +2 more
doaj   +1 more source

Inclusion of photoautotrophic cultivated diatom biomass in salmon feed can deter lice.

open access: yesPLoS ONE, 2021
The aim of this study was to evaluate the potential of diatom (microalgae) biomass as a lice-reducing ingredient in salmon feed. The original hypothesis was based on the fact that polyunsaturated aldehydes (PUAs), e.g.
Hans Chr Eilertsen   +12 more
doaj   +1 more source

Integrative effects of morphology, silicification, and light on diatom vertical movements

open access: yesFrontiers in Plant Science, 2023
Diatoms represent the most abundant and diversified class of primary producers in present oceans; their distinctive trait is the ability to incorporate silicic acid in a silica outer shell called frustule.
Alessandra Petrucciani   +3 more
doaj   +1 more source

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