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1. A 15ka lake water δD record from Genggahai Lake, northeastern Tibetan Plateau, and its paleoclimatic significance

Author:
Zhiguo Rao; Mingrui Qiang; Guodong Jia; Yunxia Li; Dan Dan; Fahu Chen
Source:
Organic geochemistry 2016 v.97 pp. 5-16
ISSN:
0146-6380
Subject:
alkanes; aquatic plants; evaporation; hydrogen; lakes; monsoon season; oxygen; rain; sediments; China
Abstract:
... The mid-chain and long chain n-alkanes in sediments of Genggahai Lake, on the northeastern Tibetan Plateau, have been assigned as being predominantly from aquatic plants. Thus, at the lake, compound specific hydrogen isotopic data for mid- and long chain n-alkanes (δDn-alkanes) are indicators of the variation in lake water δD (δDLW). Genggahai δDLW is determined by the local meteoric water δD (δDM ...
DOI:
10.1016/j.orggeochem.2016.03.007

2. The 18O‐signal transfer from water vapour to leaf water and assimilates varies among plant species and growth forms

Author:
Marco M. Lehmann; Gregory R. Goldsmith; Cathleen Mirande‐Ney; Rosemarie B. Weigt; Leonie Schönbeck; Ansgar Kahmen; Arthur Gessler; Rolf T.W. Siegwolf; Matthias Saurer
Source:
Plant, cell and environment 2020 v.43 no.2 pp. 510-523
ISSN:
0140-7791
Subject:
C3 plants; C4 plants; Crassulacean acid metabolism; aquatic plants; broadleaved trees; cacti and succulents; climatic factors; conifers; epiphytes; grasses; greenhouse experimentation; greenhouses; herbs; leaf characteristics; leaves; oxygen; relative humidity; shrubs; stable isotopes; sucrose; water vapor
Abstract:
... The ¹⁸O signature of atmospheric water vapour (δ¹⁸OV) is known to be transferred via leaf water to assimilates. It remains, however, unclear how the ¹⁸O‐signal transfer differs among plant species and growth forms. We performed a 9‐hr greenhouse fog experiment (relative humidity ≥ 98%) with ¹⁸O‐depleted water vapour (−106.7‰) on 140 plant species of eight different growth forms during daytime. We ...
DOI:
10.1111/pce.13682

3. 1H NMR based metabolomics approach to study the toxic effects of herbicide butachlor on goldfish (Carassius auratus)

Author:
Hua-Dong Xu; Jun-Song Wang; Ming-Hui Li; Yan Liu; Ting Chen; Ai-Qun Jia
Source:
Aquatic toxicology 2015 v.159 pp. 69-80
ISSN:
0166-445X
Subject:
Carassius auratus; amino acids; aquatic plants; blood serum; brain; butachlor; creatinine; discriminant analysis; ecotoxicology; edema; energy metabolism; glutathione peroxidase; goldfish; histopathology; kidneys; lactate dehydrogenase; least squares; liver; metabolomics; methane; neurotransmitters; nuclear magnetic resonance spectroscopy; oxidative stress; risk assessment; tissues; toxicity
Abstract:
... Butachlor, one of the most widely used herbicides in agriculture, has been reported with high ecotoxicity to aquatic plants and animals. In this study, a 1H NMR based metabolomics approach combined with histopathological examination and biochemical assays was applied to comprehensively investigate the toxic effects of butachlor on four important organs (gill, brain, liver and kidney) of goldfish ( ...
DOI:
10.1016/j.aquatox.2014.11.020

4. 2,4,6-Trichlorophenol (TCP) removal from aqueous solution using Canna indica L.: kinetic, isotherm and Thermodynamic studies

Author:
Christian Ebere Enyoh; Beniah Obinna Isiuku
Source:
Chemistry in ecology 2021 v.37 no.1 pp. 64-82
ISSN:
1029-0370
Subject:
2,4,6-trichlorophenol; Canna indica; Gibbs free energy; adsorption; aquatic plants; aqueous solutions; biosorption; ecology; hydroponics; models; pH; reaction kinetics; sorption isotherms; wastewater treatment
Abstract:
... The study evaluated the effectiveness of an aquatic plant, Canna indica to remove 2,4,6-Trichlorophenol (TCP) from aqueous solution in a hydroponic set-up. The effects of TCP initial concentration (50–250 mg/L) and solution pH (4–9) on TCP biosorption were investigated. The removal efficiency increased with days and initial concentrations. The optimum removal was obtained at pH 4.0. The equilibriu ...
DOI:
10.1080/02757540.2020.1821673

5. 7-Epicylindrospermopsin, a toxic minor metabolite of the cyanobacterium Aphanizomenon ovalisporum from Lake Kinneret, Israel

Author:
Banker, R.; Teltsch, B.; Sukenik, A.; Carmeli, S.
Source:
Journal of natural products 2000 v.63 no.3 pp. 387-389
ISSN:
0163-3864
Subject:
Aphanizomenon; aquatic plants; metabolites; spectral analysis; chemical structure; toxic substances; poisonous plants; chemical constituents of plants; Israel
DOI:
10.1021/np990498m
PubMed:
10757726

6. A 700‐year paleoecological record of boreal ecosystem responses to climatic variation from alaska

Author:
Willy Tinner; Christian Bigler; Sharon Gedye; Irene Gregory-Eaves; Richard T. Jones; Petra Kaltenrieder; Urs Krähenbühl; Feng Sheng Hu
Source:
Ecology 2008 v.89 no.3 pp. 729-743
ISSN:
0012-9658
Subject:
boreal forests; ecotones; paleoecology; tundra; history; sediments; lakes; peatlands; forest ecosystems; forest fires; forest trees; wetland plants; botanical composition; climate change; climatic factors; aquatic plants; shrubs; plant communities; herbaceous plants; soil erosion; taiga; paleoclimatology; Alaska
Abstract:
... Recent observations and model simulations have highlighted the sensitivity of the forest–tundra ecotone to climatic forcing. In contrast, paleoecological studies have not provided evidence of tree‐line fluctuations in response to Holocene climatic changes in Alaska, suggesting that the forest–tundra boundary in certain areas may be relatively stable at multicentennial to millennial time scales. We ...
DOI:
10.1890/06-1420.1
PubMed:
18459336

7. Controlling Factors of Surface Water Ionic Composition Characteristics in the Lake Genggahai Catchment, NE Qinghai–Tibetan Plateau, China

Author:
Yanxiang Jin; Xin Jin; Dengxing Yang; Xufeng Mao
Source:
Water 2019 v.11 no.7 pp. -
ISSN:
2073-4441
Subject:
anions; aquatic plants; basins; calcium; carbonates; cations; chemical composition; evaporation; grazing; groundwater; lakes; photosynthesis; river water; silicates; sodium; surface water; water quality; watersheds; weathering; China
Abstract:
... This study has determined the major ion compositions of surface waters within the basin of Lake Genggahai, northeastern Qinghai–Tibetan Plateau, China. The results showed that the anions in the groundwater and river water of Genggahai Lake are mainly HCO3−, and the cations are mainly Ca2+ + Na+. Evaporite, carbonate, and silicate in the basin all have an impact on the chemic ...
DOI:
10.3390/w11071329

8. Micractinium tetrahymenae (Trebouxiophyceae, Chlorophyta), a New Endosymbiont Isolated from Ciliates

Author:
Thomas Pröschold; Gianna Pitsch; Tatyana Darienko
Source:
Diversity 2020 v.12 no.5 pp. -
ISSN:
1424-2818
Subject:
Chlorella; Micractinium; Tetrahymena; Utricularia; algae; anaerobic conditions; aquatic plants; bladder; carnivores; endosymbionts; internal transcribed spacers; models; new species; phylogeny; symbiosis
Abstract:
... Endosymbiosis between coccoid green algae and ciliates are widely distributed and occur in various phylogenetic lineages among the Ciliophora. Most mixotrophic ciliates live in symbiosis with different species and genera of the so-called Chlorella clade (Trebouxiophyceae). The mixotrophic ciliates can be differentiated into two groups: (i) obligate, which always live in symbiosis with such ...
DOI:
10.3390/d12050200

9. Abiotic stresses increase plant regeneration ability

Author:
Puijalon, Sara; Piola, Florence; Bornette, Gudrun
Source:
Evolutionary ecology 2008 v.22 no.4 pp. 493-506
ISSN:
0269-7653
Subject:
abiotic stress; aquatic plants; belowground biomass; habitat destruction; habitats; mechanical stress; nutrient content; perennials; stems; storage organs
Abstract:
... In disturbed habitats, vegetative regeneration is partly ruled by plant reserves and intrinsic growth rates. Under nutrient-limiting conditions, perennial plants tend to exhibit an increased allocation to storage organs. Under mechanically stressful conditions, plants also tend to increase allocation to below-ground biomass and storage organs. We tested whether those stresses acting differently on ...
DOI:
10.1007/s10682-007-9177-5

10. Above-bottom biomass retrieval of aquatic plants with regression models and SfM data acquired by a UAV platform – A case study in Wild Duck Lake Wetland, Beijing, China

Author:
Ran Jing; Zhaoning Gong; Wenji Zhao; Ruiliang Pu; Lei Deng
Source:
ISPRS journal of photogrammetry and remote sensing 2017 v.134 pp. 122-134
ISSN:
0924-2716
Subject:
aquatic plants; biomass; canopy; case studies; decision support systems; ecosystems; lakes; models; orthophotography; regression analysis; texture; unmanned aerial vehicles; vegetation index; wetlands; China
Abstract:
... Above-bottom biomass (ABB) is considered as an important parameter for measuring the growth status of aquatic plants, and is of great significance for assessing health status of wetland ecosystems. In this study, Structure from Motion (SfM) technique was used to rebuild the study area with high overlapped images acquired by an unmanned aerial vehicle (UAV). We generated orthoimages and SfM dense p ...
DOI:
10.1016/j.isprsjprs.2017.11.002

11. Abscisic acid (ABA) relations in the aquatic resurrection plant Chamaegigas intrepidus under naturally fluctuating environmental conditions

Author:
PETRA SCHILLER; HERMANN HEILMEIER; WOLFRAM HARTUNG
Source:
new phytologist 1997 v.136 no.4 pp. 603-611
ISSN:
0028-646X
Subject:
Scrophulariaceae; abscisic acid; aquatic plants; seasonal variation; metabolism; wet season; roots; leaves; pH; ponds; phenology; chemical constituents of plants; Namibia
Abstract:
... The resurrection plant Chamaegigas intrepidus Dinter (Scrophulariaceae) grows as a typical hydrophyte in shallow rock pools on granitic outcrops in arid areas of Namibia. During the rainy season, the rock pools are temporarily filled with water. When the pools dry up, C. intrepidus desiccates and survives in an air‐dry condition for at least 8 months. After rewatering, the plants regain their meta ...
DOI:
10.1046/j.1469-8137.1997.00789.x

12. Abscisic acid regulation of heterophylly in Marsilea quadrifolia L.: effects of R-(-) and S-(+) isomers

Author:
Lin, Bai-Ling; Wang, Huei-Jen; Wang, Jang-Shiun; Zaharia, L. Irina; Abrams, Suzanne R.
Source:
Journal of experimental botany 2005 v.56 no.421 pp. 2935-2948
ISSN:
0022-0957
Subject:
anaerobic conditions; aerobic conditions; gene expression regulation; plant morphology; stereoisomers; petioles; abscisic acid; Marsilea quadrifolia; aquatic plants
Abstract:
... The plant hormone abscisic acid (ABA) induces a developmental switch in the aquatic fern Marsilea quadrifolia, causing the formation of aerial type characteristics, including the elongation of petioles and roots, a change in leaf morphology, the expansion of leaf surface area, and the shortening of the internodes. A number of ABA-responsive heterophylly (ABRH) genes are induced early during the tr ...
DOI:
10.1093/jxb/eri290
PubMed:
16203756

13. Abscisic acid-enhanced starch accumulation of bioenergy crop duckweed (Spirodela polyrrhiza)

Author:
Xuezhi Wang; Weihua Cui; Weiwu Hu; Chuanping Feng
Source:
RSC advances 2020 v.10 no.18 pp. 10394-10401
ISSN:
2046-2069
Subject:
Spirodela polyrhiza; abscisic acid; adenosine diphosphate; aquatic plants; bioenergy; biomass; carbon sequestration; climate change; energy crops; energy flow; feedstocks; glucose-1-phosphate adenylyltransferase; lignin; photosynthesis; ultrastructure
Abstract:
... To meet the increasing energy consumption around the world and fight global climate change, there is an urgent need to explore renewable energy crops to replace the traditional energy sources. Duckweed (Spirodela polyrrhiza) is widely distributed in the world and has high starch and low lignin contents, which is perhaps an ideal feedstock for bioenergy production. To investigate the effects of abs ...
DOI:
10.1039/d0ra00269k

14. Absorption and Translocation of Florpyrauxifen-Benzyl in Ten Aquatic Plant Species

Author:
Erika J. Haug; Khalied A. Ahmed; Travis W. Gannon; Rob J. Richardson
Source:
Weed science 2021 v.69 no.6 pp. 624-630
ISSN:
0043-1745
Subject:
Hydrilla verticillata; Myriophyllum spicatum; Nymphoides; absorption; aquatic plants; auxins; dioecy; herbicide resistance; herbicides; radiolabeling; risk; weed science; North Carolina
Abstract:
... Additional active ingredients are needed for use in aquatic systems to respond to new threats or treatment scenarios, enhance selectivity, reduce use rates, and mitigate the risk of herbicide resistance. Florpyrauxifen-benzyl is a new synthetic auxin developed for use as an aquatic herbicide. A study was conducted at North Carolina State University in which 10 µg L–¹ of 25% radiolabeled florpyraux ...
DOI:
10.1017/wsc.2021.38

15. Abundance and distribution of immature mosquitoes in urban rivers proximate to their larval habitats

Author:
Minghai Ma; Minsheng Huang; Peien Leng
Source:
Acta tropica 2016 v.163 pp. 121-129
ISSN:
0001-706X
Subject:
Aedes albopictus; Culex pipiens pallens; aeration; aquatic plants; breeding; breeding sites; cities; ecological restoration; habitats; larvae; new species; physicochemical properties; river water; rivers; vegetation; water quality; China
Abstract:
... Whether ecological restoration of polluted urban rivers would provide suitable breeding habitats for some mosquitoes was not clear yet. It was therefore important to determine how altered river conditions influence mosquito ecology. Monthly data on water quality and larval density were obtained to determine the effects of river systems on the distribution and abundance of immature mosquitoes in tw ...
DOI:
10.1016/j.actatropica.2016.08.010

16. Abundance and diversity of the aquatic beetles in a Mediterranean stream system (Northern Tunisia)

Author:
Samir Touaylia; Josefina Garrido; Moncef Boumaiza
Source:
Annales de la Société entomologique de France 2013 v.49 no.2 pp. 172-180
ISSN:
2168-6351
Subject:
Coleoptera; United Nations Educational, Scientific and Cultural Organization; aquatic plants; biosphere; community structure; dissolved oxygen; environmental factors; indigenous species; lakes; lentic systems; mineralization; multidimensional scaling; multivariate analysis; pH; phenology; principal component analysis; salinity; spatial variation; species diversity; streams; surface water; temperature; turbidity; wetlands; Tunisia
Abstract:
... The understanding of community structuring factors is a fundamental issue in community ecology. We investigate the biodiversity of the water beetle in the Ichkeul Lake stream system located in Northern Tunisia, with emphasis on the effect of several environmental variables on their assemblage structure. This area is of a great importance since it was included in the list of preserved waterbodies b ...
DOI:
10.1080/00379271.2013.815033

17. Abundance of milfoil weevil in Wisconsin lakes: Potential effects from herbicide control of Eurasian watermilfoil

Author:
John E. Havel; Susan E. Knight; James R. Miazga
Source:
Lake and reservoir management 2017 v.33 no.3 pp. 270-279
ISSN:
2151-5530
Subject:
Euhrychiopsis lecontei; Myriophyllum sibiricum; Myriophyllum spicatum; aquatic plants; biological control; herbicides; invasive species; lakes; Wisconsin
Abstract:
... Havel JE, Knight SE, Miazga JR. 2017. Abundance of milfoil weevil in Wisconsin lakes: potential effects from herbicide control of Eurasian watermilfoil. Lake Reserve Manage. 00:1–10. Although extensive research has revealed the milfoil weevil (Euhrychiopsis lecontei) to have potential for biological control of Eurasian watermilfoil (EWM, Myriophyllum spicatum), herbicides are widely used for contr ...
DOI:
10.1080/10402381.2017.1334250

18. Abundance-range size relationships in stream vegetation in Denmark

Author:
Riis, T.; Sand-Jensen, K.
Source:
Plant ecology 2002 v.161 no.2 pp. 175-183
ISSN:
1385-0237
Subject:
vegetation; streams; habitat destruction; population dynamics; water flow; seed dispersal; spatial variation; botanical composition; aquatic plants; Denmark
Abstract:
... Streams experience a constant redistribution of species and in-stream plant stands due to the extensive disturbance caused by flow variation, high continuity of habitats and efficient dispersal in the stream network. These conditions increase the homogeneity of environmental conditions and composition of vegetation among stream localities and are likely to promote a positive interspecific relation ...

19. Abundant genetic diversity of the wild rice Zizania latifolia in central China revealed by microsatellites

Author:
Y.‐Y. Chen; H.‐J. Chu; H. Liu; Y.‐L. Liu
Source:
Annals of applied biology 2012 v.161 no.2 pp. 192-201
ISSN:
0003-4746
Subject:
Zizania latifolia; aquatic ecosystems; aquatic plants; gene flow; genetic resources; genetic variation; habitat destruction; life history; microsatellite repeats; outcrossing; population dynamics; population structure; reproductive system; water birds; wild rice; China
Abstract:
... Wild rice Zizania latifolia is a perennial emergent aquatic plant widely distributed across China. Wild populations of Z. latifolia are important to aquatic ecosystems and are valuable genetic resources for breeding. However, they have been faced with significant habitat losses in recent decades. For 10 nuclear microsatellites, high levels of genetic diversity (HE = 0.572–0.636) were found a ...
DOI:
10.1111/j.1744-7348.2012.00564.x

20. Accessible habitat and wetland structure drive occupancy dynamics of a threatened amphibian across a peri-urban landscape

Author:
Andrew J. Hamer
Source:
Landscape and urban planning 2018 v.178 pp. 228-237
ISSN:
0169-2046
Subject:
Litoria; aquatic plants; breeding; extinction; frogs; habitat destruction; habitat fragmentation; habitats; indigenous species; landscapes; ponds; probability; roads; vegetation cover; wetlands
Abstract:
... Populations of aquatic-breeding amphibians are declining from habitat loss, fragmentation and degradation. Identifying how populations are affected by landscape barriers such as roads is essential for conservation and requires understanding the processes underpinning species occupancy in fragmented landscapes. Here, I assessed relationships between the occupancy dynamics of the threatened green an ...
DOI:
10.1016/j.landurbplan.2018.06.008