An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
plants (botany), etc ; benzophenones; environment; toxicity; China; Show all 5 Subjects
Abstract:
... Organic ultraviolet absorbents (UVAs) have attracted increasing concern due to their ubiquity, bioaccumulation, and potential toxicity. However, available information on their occurrence and transfer in terrestrial environment is still extremely insufficient. In this study, we investigated twelve UVAs in the soils and five terrestrial plant species from a typical industrial area in South China, an ...
plants (botany), etc ; air; atmospheric deposition; microplastics; wetlands; Show all 5 Subjects
Abstract:
... Capturing microplastics (MPs) were one of the important characteristics for terrestrial plant. Whereas, role of mangrove leaves in capturing MPs from tidal water and air were still largely unexplored. Here, we detected the spatial distribution of MPs at both submerged (0.10-0.49 n/cm²) and non-submerged mangrove leaves (0.09-0.24 n/cm²) in the Beibu Gulf. Abundance of MPs on submerged mangrove lea ...
plants (botany), etc ; biogeography; cold; evolutionary adaptation; population growth; temperature; Show all 6 Subjects
Abstract:
... AIM: During naturalization, many species undergo climatic niche expansion, in which they spread into climates with which they have not been associated previously. This suggests that species are absent from some climatically suitable areas in their native range, but the reason for this is unknown. We aimed to evaluate whether the climatic conditions in which expansion occurs provide information abo ...
plants (botany), etc ; environment; food consumption; heavy metals; markets; shellfish; China; Show all 7 Subjects
Abstract:
... Residual levels and accumulation characteristics of six hazardous heavy metal elements (As, Cd, Hg, Tl, Pb, and U) and seven essential heavy metal elements (Cr, Mn, Fe, Ni, Cu, Zn, and Se) were investigated in 17 kinds of frequently consumed foodstuffs collected from 33 cities distributed in five regions of China. The concentrations of the detected metals were lower than the maximum limits promulg ...
... Arbuscular mycorrhizal fungi (AMF) and beneficial bacteria are found naturally associated with most terrestrial plant roots. While it is now well known that bacteria colonize AMF and can form aggregates and biofilms, little is known about how interactions between bacterial communities and AMF take place under both in situ and in vitro conditions. We investigated the impact of inoculation with AMF- ...
plants (botany), etc ; Archaea; clearcutting; data collection; ectomycorrhizae; forest soils; forests; humans; iron; magnesium; manganese; nitrates; phosphorus; soil pH; Australia; Show all 15 Subjects
Abstract:
... Billions of microorganisms perform critical below‐ground functions in all terrestrial ecosystems. While largely invisible to the naked eye, they support all higher lifeforms, form symbiotic relationships with ~90% of terrestrial plant species, stabilize soils, and facilitate biogeochemical cycles. Global increases in the frequency of disturbances are driving major changes in the structure and func ...
plants (botany), etc ; Plantago lanceolata; aerosols; air; air quality; bioaccumulation; environmental monitoring; guidelines; indicator species; molecular weight; pollution; research; vigor; Show all 13 Subjects
Abstract:
... Biomonitors are considered a cheap alternative of active air samplers, especially where spatial pattern of air quality is to be monitored, requiring numerous parallel measurements. Of higher plants, Plantago lanceolata L. has been proven a good monitor species with proper accumulation capacity. While biomonitoring studies are difficult to compare due to inherent errors such as the diverse plant ma ...
plants (botany), etc ; Aspergillus fumigatus; Cynodon dactylon; benzene; cytotoxicity; endophytes; epigenetics; fungi; immunosuppression; immunosuppressive agents; mass spectrometry; polyketides; research; secondary metabolites; Show all 14 Subjects
Abstract:
... Chemical epigenetic modifiers applied on a plant endophytic fungus Aspergillus fumigatus isolated from a healthy stem of terrestrial plant Cynodon dactylon, significantly changed of metabolic profile and resulted in the isolation of nineteen compounds, including ten alkaloids (1–10), six polyketides (11–16), and three benzene derivatives (17–19). This is the first report of 14, 18 and 19 being iso ...
plants (botany), etc ; Andropogon virginicus; Iris versicolor; Panicum virgatum; atrazine; azoxystrobin; high performance liquid chromatography; imidacloprid; pesticide residues; phytoremediation; soil; vegetation; Show all 12 Subjects
Abstract:
... Pesticides can move off-target resulting in contamination of sensitive water bodies and causing adverse effects on inhabiting species. Through best management practices, such as the implementation of vegetative buffer strips, off-target movement of pesticides can be decreased, and compound degradation can be increased via phytoremediation. In this study, blueflag iris (Iris versicolor), broomsedge ...
plants (botany), etc ; animal density; biomarkers; census data; ecosystems; fungi; heathlands; herbivores; highlands; lipids; palaeogeography; paleoclimatology; paleoecology; peat; peatlands; pollen; sheep; Show all 17 Subjects
Abstract:
... Herbivory plays a significant role in regulating many contemporary terrestrial plant ecosystems, but remains an imperfectly understood component of past ecosystem dynamics because the diagnostic capability of methods is still being tested and refined. To understand the efficacy of a multiproxy approach, we compare the sensitivity of pollen and coprophilous fungal spores (CFS) to changes in grazing ...
plants (botany), etc ; Arabidopsis thaliana; calcium; calcium channel blockers; gene expression; heavy metals; lanthanum; oxidative stress; oxidoreductases; pH; plant growth; toxicity; uranium; Show all 13 Subjects
Abstract:
... Uranium, a heavy metal and primordial radionuclide, is present in surface waters and soils both naturally and due to industrial activities. Uranium is known to be toxic to plants and its uptake and toxicity can be influenced by multiple factors such as pH and the presence of different ions. However, the precise role of the different ions in uranium uptake is not yet known. Here we investigated whe ...
plants (botany), etc ; DNA; archaeology; biogeography; botanical composition; climate; climate change; humans; indigenous knowledge; land use; paleoecology; plant communities; vegetation; vegetation structure; North America; Show all 15 Subjects
Abstract:
... MOTIVATION: Rapid climate change is altering plant communities around the globe fundamentally. Despite progress in understanding how plants respond to these climate shifts, accumulating evidence suggests that disturbance could not only modify expected plant responses but, in some cases, have larger impacts on compositional shifts than climate change. Climate‐driven disturbances are becoming increa ...
... The introduction and further spread of many alien species have been a result of trade and transport. Consequently, alien species are often found close to traffic infrastructure and urban areas. To contain and manage the spread of alien species, it is essential to identify and predict major routes of spread, which cannot be obtained by applying common modelling approaches such as species distributi ...
... Nanoplastics are widespread in the environment, and their increased persistence is an indisputable and severe threat. The impacts of these nanoplastic particles on the soil system and terrestrial plant growth, as well as how the EPS secreted by soil microbes would influence their toxic effects remain largely unexplored. This study focuses on the toxic effects of polystyrene nanoplastics (PSNPs) of ...
Iuliana Vasiliev; Marcel T.J. van der Meer; Marius Stoica; Wout Krijgsman; Gert-Jan Reichart; Sergei Lazarev; Geanina A. Butiseacă; Eva M. Niedermeyer; Elmira Aliyeva; Christian G.C. van Baak; Andreas Mulch
plants (botany), etc ; Pleistocene epoch; Pliocene epoch; air temperature; alkanes; basins; biomarkers; cold; glycerol; hydrology; isoprenoids; oceans; organic matter; palaeogeography; paleoclimatology; paleoecology; Arctic region; Black Sea; Caspian Sea; Show all 19 Subjects
Abstract:
... Landlocked basins like the Caspian Sea are highly sensitive to changes in their hydrological budget, especially at times of disconnection from the global ocean. Here, we reconstruct the Pliocene to Pleistocene palaeohydrological and palaeoenvironmental changes occurring in the South Caspian Basin between ~3.6 and ~ 1.9 Ma, using compound-specific hydrogen isotope (δ²H) data on long chain n-alkanes ...
plants (botany), etc ; Amorpha fruticosa; United Nations Educational, Scientific and Cultural Organization; anthropogenic activities; biodiversity; cattle; conservation areas; forests; invasive species; surveys; topsoil; unmanned aerial vehicles; wetlands; Serbia; Show all 14 Subjects
Abstract:
... The Obedska Bara Special Nature Reserve is one of the oldest protected areas in the world, also enlisted as an Important Bird Area, Ramsar and UNESCO world heritage site. False indigo bush (Amorpha fruticosa L.) represents an invasive alien species which is significantly deteriorating the biodiversity of the Obedska Bara Special Nature Reserve in Serbia. Mapping of A. fruticosa, using an unmanned ...
plants (botany), etc ; botanical illustration; botanists; palynology; pollen analysis; Show all 5 Subjects
Abstract:
... This paper examines the annotations within a copy of the first edition of the ‘bible’ of palynology – Text-book of Modern Pollen Analysis – by the Norwegian botanist Knut Fægri and his co-author, the Danish botanist Johannes Iversen, published in 1950. The marginalia are the work of Swedish geobotanist Gunnar Erdtman, made in his personal library copy of 'Fægri & Iversen'. All three palynologists ...
plants (botany), etc ; biomass; botany; community structure; microplastics; pollution; Show all 6 Subjects
Abstract:
... Microplastics pollution have become an environmental issue of global concern due to the extensive use and unreasonable disposal of plastics. The effects of microplastics on terrestrial ecosystems, especially on plant ecosystems, have attracted growing attention. However, the recent researches mainly focus on the individual plants, and study on the plant community-level is still very rare. This rev ...
plants (botany), etc ; Salmo salar; aquaculture feeds; biochemical pathways; biosynthesis; biotechnology; data collection; docosahexaenoic acid; eicosapentaenoic acid; enzymology; genome; health promotion; humans; lipid metabolism; liver; nutritive value; salmon; transcription (genetics); Show all 18 Subjects
Abstract:
... Salmon is a rich source of health-promoting omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA), such as eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3). The LC-PUFA biosynthetic pathway in Atlantic salmon is one of the most studied compared to other teleosts. This has largely been due to the massive replacement of LC-PUFA-rich ingredients in aquafeeds with te ...
plants (botany), etc ; conservation areas; deforestation; environment; species diversity; China; Show all 6 Subjects
Abstract:
... Mangrove deforestation has rapidly declined by an order of magnitude compared to that reported for the 20th century, but the remaining mangrove ecosystems are still undergoing biodiversity loss and degradation. Labor-intensive ground surveys that are usually used for terrestrial plant biodiversity assessment are difficult to conduct in the mangrove forests. Assessing plant biodiversity from space ...