scholarly journals Phytoremediation of cadmium-contaminated sediment using Hydrilla verticillata and Elodea canadensis harbor two same keystone rhizobacteria Pedosphaeraceae and Parasegetibacter

Chemosphere ◽  
2021 ◽  
pp. 131648
Author(s):  
Qiusheng Yuan ◽  
Peifang Wang ◽  
Xun Wang ◽  
Bin Hu ◽  
Li Tao
Keyword(s):  
Hydrilla Verticillata ◽  
Elodea Canadensis ◽  
Contaminated Sediment

scholarly journals ARE THE PLANTS OF THE FAMILY HYDROCHARITACEAE A NEW SOURCE OF TANNINS?

2018 ◽  
pp. 179-184
Author(s):  
Елена (Elena) Анатольевна (Аnatol'evna) Алехина (Alekhina) ◽  
Андрей (Аndrej) Николаевич (Nikolaevich) Ефремов (Efremov) ◽  
Ольга (Ol'ga) Александровна (Aleksandrovna) Емельянова (Emelyanova)
Keyword(s):  
Condensed Tannins ◽  
Statistical Processing ◽  
Hydrilla Verticillata ◽  
Urtica Dioica ◽  
Elodea Canadensis ◽  
Egeria Densa ◽  
The Family ◽  
Bidens Tripartita ◽  
Stratiotes Aloides ◽  
Leaf Tissues

The plants of the families Salicaceae, Fagaceae, Pinaceae are traditional sources of tannins. However, earlier in the leaf tissues of some marine (Enhalus, Thalassia) and freshwater (Stratiotes) genuses of the family Hydrocharitaceae, idioblasts containing condensed tannins were found. In this regard, the purpose of the study was to determine the content of tannins in the phytomass of plants of the family Hydrocharitaceae (Hydrocharis morsus-ranae, Hydrilla verticillata, Stratiotes aloides, Egeria densa, Elodea canadensis) and medicinal plants − traditional sources of tannins (Quercus robur, Urtica dioica, Bidens tripartita).As a result of the research hydrolyzed tannins has been found in Hydrocharis morsus-ranae, and a mixture of hydrolyzed and condensed tannins in Stratiotes aloides, Elodea canadensis, Egeria densa, Hydrilla verticillata. Stratiotes aloides (3.1±0.1% of dry matter) and Hydrilla verticillata (2.8±0.1%) are characterized by the greatest content of tannins, Elodea canadensis (1.1 ± 0.1%) characterized by the minimal content. The shelf life of the dried phytomass does not affect the content of tannins. Statistical processing of the results of determination of tannins in the phytomass Hydrocharis morsus-ranae, Stratiotes aloides and Elodea canadensis, performed in different years, showed their convergence.The results of these studies allow us to consider the plants of the family Hydrocharitaceae as a potential source of tannins, comparable to such official sources as Urtica dioica and Bidens tripartita.

НОВЫЕ ДЛЯ ФЛОРЫ ЯКУТИИ ELODEA CANADENSIS, HYDRILLA VERTICILLATA (HYDROCHARITACEAE) И POTAMOGETON MAACKIANUS (POTAMOGETONACEAE)

2017 ◽  
Vol 102 (2) ◽  
pp. 222-231
Author(s):  
БОБРОВ А.А. ◽  
ФИЛИППОВА В.А. ◽  
НИКОЛИН Е.Г. ◽  
ЧЕМЕРИС Е.В.
Keyword(s):  
Hydrilla Verticillata ◽  
Elodea Canadensis

scholarly journals Utilization of Aquatic Plants Elodea canadensis and Hydrilla verticillata in Diets for Laying Hens.

1990 ◽  
Vol 69 (4) ◽  
pp. 673-678 ◽  
Author(s):  
L.R. McDOWELL ◽  
L.C. LIZAMA ◽  
J.E. MARION ◽  
C.J. WILCOX
Keyword(s):  
Aquatic Plants ◽  
Laying Hens ◽  
Hydrilla Verticillata ◽  
Elodea Canadensis

Sequential risk mitigation and the role of natural recovery in contaminated sediment projects

1998 ◽  
Vol 37 (6-7) ◽  
pp. 331-336 ◽  
Author(s):  
Stephen Garbaciak ◽  
Philip Spadaro ◽  
Todd Thornburg ◽  
Richard Fox
Keyword(s):  
Lower Cost ◽  
Risk Mitigation ◽  
Management Strategies ◽  
Source Control ◽  
Contaminated Sediment ◽  
Practical Observation ◽  
Ecosystem Recovery ◽  
Natural Recovery ◽  
Natural Processes

Sequential risk mitigation approaches the remediation of contaminated sediments in three phases designed to: (1) immediately reduce the ecological and human health risks associated with high levels of contamination, using methods such as the confinement or capping of high-risk materials; (2) reduce the risks associated with moderate levels of pollution to a minimum, on a less urgent schedule and at a lower cost; and (3) address areas of limited contamination through a combination of natural recovery and enhanced natural recovery (to aid or speed those natural processes). Natural recovery, the reduction of contaminant concentrations through natural processes, is based on the practical observation that overall ecosystem recovery appears to be largely a function of time. Sediment decomposition and the mixing of new and old sediments by bottom-dwelling organisms can both contribute to reduced contaminant concentrations. Knowledge of these processes--sediment decomposition, sediment mixing by bottom-dwelling organisms, and chemical residence time is critical in the development of appropriate ecosystem recovery and waste management strategies. Evaluations to support natural recovery predictions are designed to collect and evaluate information necessary to determine whether surface sediment chemical concentrations, with adequate source control, will reach the cleanup standards within a ten-year period.

scholarly journals Removal and Re-use of Tar-contaminated Sediment by Freeze-dredging at a Coking Plant Luleå, Sweden

2016 ◽  
Vol 88 (9) ◽  
pp. 847-851 ◽  
Author(s):  
Susanne C. Rostmark ◽  
Manuel Colombo ◽  
Sven Knutsson ◽  
Gunilla Öberg
Keyword(s):  
Contaminated Sediment ◽  
Coking Plant

Absorption and Translocation of Florpyrauxifen-benzyl in Ten Aquatic Plant Species

Weed Science ◽  
2021 ◽  
pp. 1-21
Author(s):  
Erika J. Haug ◽  
Khalied A. Ahmed ◽  
Travis W. Gannon ◽  
Rob J. Richardson
Keyword(s):  
North Carolina ◽  
Plant Species ◽  
Aquatic Plant ◽  
Myriophyllum Spicatum ◽  
Hydrilla Verticillata ◽  
State University ◽  
North Carolina State University ◽  
Eurasian Watermilfoil ◽  
Body Of Knowledge ◽  
Aquatic Herbicide

Abstract Additional active ingredients are needed for use in aquatic systems in order to respond to new threats or treatment scenarios, enhance selectivity, reduce use rates, and to 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 florpyrauxifen-benzyl was applied to the isolated shoot tissue of ten different aquatic plant species in order to elucidate absorption and translocation patterns in these species. Extremely high levels of shoot absorption were observed for all species and uptake was rapid. Highest shoot absorptions were observed for crested floatingheart [Nymphoides cristata (Roxb.) Kuntze] (A192 =20 µg g−1), dioecious hydrilla [Hydrilla verticillata (L.f.) Royle] (A192 =25.3 µg g−1), variable watermilfoil (Myriophyllum heterophylum Michx.) (A192 =40.1 µg g−1) and Eurasian watermilfoil (Myriophyllum spicatum L.) (A192 =25.3 µg g−1). Evidence of translocation was observed in all rooted species tested with the greatest translocation observed in N. cristata (1.28 µg g-1 at 192 HAT). The results of this study add to the growing body of knowledge surrounding the behavior of this newly registered herbicide within aquatic plants.

Rhamnolipids Application for the Removal of Vanadium from Contaminated Sediment

2021 ◽  
Author(s):  
Yaima Barrios San Martín ◽  
Heidy F. Toledo León ◽  
Arelis Ábalos Rodríguez ◽  
Ana M. Marqués ◽  
Maria I. Sánchez López
Keyword(s):  
Contaminated Sediment
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