Results 71 to 80 of about 4,589 (145)

Changes in midge assemblages reflect climate and trophic gradients across north temperate and boreal lakes since the pre‐industrial period

open access: yesFreshwater Biology, Volume 69, Issue 1, Page 15-33, January 2024.
Abstract North temperate and boreal lakes are affected by a complex suite of anthropogenic stressors, yet little is known about how these ecosystems are faring across the most lake‐rich nation, Canada. The NSERC Canadian Lake Pulse Network is the first large‐scale national survey of its kind, with the aim of assessing the health of Canadian lakes ...
Katherine Griffiths   +4 more
wiley   +1 more source

Temporal and spatial changes in population structure of the freshwater macroalga Nitellopsis obtusa (Desv.) J.Groves

open access: yes, 2017
Nitellopsis obtusa usually inhabits deep lakes, where the plants display vegetative growth and survive through the winter. In the present study we investigated a shallow lake where Nitellopsis reproduces sexually; we were interested in the effect of ...
Auderset Joye, Dominique   +5 more
core   +1 more source

The effect of pain suppressing pharmaceuticals on the charophyte cell of nitellopsis obtusa. [PDF]

open access: yes, 2021
With the growth of the use of pharmaceutical substances, there is increasing evidence of the release of drugs into the environment: drug residues are found in surface and underground waters, soil, animal tissues.
Plučaitė, Goda,
core  

Detection of charophyte algae (Characeae) in lakes using eDNA metabarcoding

open access: yesGlobal Ecology and Conservation
Detection of charophyte algae (Characeae) and identification to species level is important for biodiversity conservation and ecological status assessment, and environmental DNA (eDNA) might enable fast and replicable species detection.
Aleksandra Marković   +7 more
doaj   +1 more source

Investigation of chlorophyll fluorescence of characean nitellopsis obtusa cells. [PDF]

open access: yes, 2022
Fluorescence spectroscopy is widely used to investigate photosynthetic performance, as part of the energy needed for photosynthesis can be emitted instead of being used in photochemical reactions.
Navickaitė, Aušrinė,
core  

Mažų jonizuojančiosios spinduliuotės dozių poveikis menturdumblių Nitellopsis obtusa ląstelių elektrofiziologinėms savybėms. [PDF]

open access: yes, 2014
In nowadays low-dose ionising radiation can have a significant impact on humans and the environment, since it can occur in daily life from higher natural background radiation, rising anthropogenic pollution, medical, occupational, and accidental exposure.
Sevriukova, Olga,
core  

轮藻科(Characeae)三个属无丝分裂的研究

open access: yes四川大学学报. 自然科学版, 2008
用Giemsa常规染色法和DAPI(4′,6-diamidino-2-′phenylindole)荧光染色法对轮藻科(Characeae)3个属:乳突丽藻(Nitella papillata)、钝节拟丽藻(Nitellopsis obtusa)和弧枝轮藻(Chara connivens)进行了细胞核无丝分裂研究.结果发现无丝分裂是这几种藻体的主要分裂方式;同种藻不同部位,不同种藻之间,无丝分裂形态有所不同.
周旭丹   +5 more
doaj  

Low-dose ionising radiation effect on the electrophysiological properties of Nitellopsis obtusa cells. [PDF]

open access: yes, 2014
In nowadays low-dose ionising radiation can have a significant impact on humans and the environment, since it can occur in daily life from higher natural background radiation, rising anthropogenic pollution, medical, occupational, and accidental exposure.
Sevriukova, Olga,
core  

Long-distance electrical signaling systems in plants – adaptaon to the change from water to terrestri environment.

open access: yes, 2022
Bendro Lietuvos- Lenkijos DAINA projekto „Elektrinių signalų perdavimo ilgais atstumais sistemos adaptacija augalams persikeliant iš vandens į sausumą“ metu Lietuvoje vykdyti elektrofiziologiniai tyrimai, siekiant nustatyti TPC kanalų blokatorių poveikį ...
Vilma Kisnierienė
core   +1 more source

The growth of starry stonewort (\u3ci\u3eNitellopsis obtusa\u3c/i\u3e), an aquatic invasive species, in two Michigan Lakes, and its suitable habitats in the Midwest and Northeast United States [PDF]

open access: yes, 2021
The growth of starry stonewort (Nitellopsis obtusa), an aquatic invasive species, in two Michigan Lakes, and its suitable habitats in the Midwest and Northeast United States Aquatic invasive species are a major threat to freshwater ecosystems, but gaps ...
Neuman, Emily
core  

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