scholarly journals Metabolism of carbamazepine in plant roots and endophytic rhizobacteria isolated from Phragmites australis

2018 ◽  
Vol 342 ◽  
pp. 85-95 ◽  
Author(s):  
Andrés Sauvêtre ◽  
Robert May ◽  
Rudolf Harpaintner ◽  
Charlotte Poschenrieder ◽  
Peter Schröder
Keyword(s):  
Phragmites Australis ◽  
Plant Roots

scholarly journals Roots, Tissues, Cells and Fragments—How to Characterize Peat from Drained and Rewetted Fens

Soil Systems ◽  
2020 ◽  
Vol 4 (1) ◽  
pp. 12 ◽  
Author(s):  
Dierk Michaelis ◽  
Almut Mrotzek ◽  
John Couwenberg
Keyword(s):  
Phragmites Australis ◽  
Plant Succession ◽  
Plant Roots ◽  
Novel Ecosystems ◽  
Main Constituent ◽  
Deep Drainage ◽  
Carex Rostrata ◽  
Type C

We present analyses of macroscopic and microscopic remains as a tool to characterise sedge fen peats. We use it to describe peat composition and stages of peat decomposition, to assess the success of rewetting of a formerly drained fen, and to understand the workings of these novel ecosystems. We studied two percolation fen sites, one drained and one drained and rewetted 20 years ago. Years of deep drainage have resulted in a layer of strongly decomposed peat which lacks recognizable macro-remains. We could associate micro-remains with macro-remains, and thus still characterise the peat and the plants that once formed it. We show that the strongly decomposed peat is of the same origin as the slightly decomposed peat below, and that is was ploughed. We present descriptions of eight types of the main constituent of sedge peat: plant roots, including Carex rostrata type, C. lasiocarpa/rostrata type, C. limosa type, C. acutiformis type, C. echinata type, Phragmites australis type, Cladium type, Equisetum type. We describe three new non-pollen palynomorph types (microscopic remains) and five new subtypes. The rewetted fen provides insights into plant succession after rewetting and the formation of peat that predominantly consists of roots. Results indicate that leaf sheaths may be a consistent component of the peat.

scholarly journals SIMULTANEOUS REMOVAL OF SOME HEAVY METALS AND ARSENIC FROM AQUEOUS SOLUTIONS BY Phragmites australis

2018 ◽  
Vol 54 (2A) ◽  
pp. 259
Author(s):  
Tran Thi Huyen Nga
Keyword(s):  
Heavy Metals ◽  
Aqueous Solutions ◽  
Phragmites Australis ◽  
Removal Efficiency ◽  
Common Reed ◽  
Plant Roots ◽  
Simultaneous Removal ◽  
Removal Rates ◽  
Heavy Metals And Arsenic

In this study, Phragmites australis (common reed) was transplanted into solutions added with different concentrations of Mn, Zn, Cd, Pb, and As for 30 days in the laboratory (10 days of incubation and repeated three times without changing the plant) to assess the removal of these metals and its accumulation in the plant. The results showed that high removal efficiency was achieved by growing P.australis. The highest daily removal rates of heavy metals and As were obtained after 1 day of new solution addition. The highest concentrations of Mn, Zn, Cd, Pb, and As in the plant roots were 3920, 1020, 90.9, 1350, and 183 mg kg–1 dry wt., respectively; those in the stems were 465, 108, 26.4, 227, and 74.0 mg kg–1 dry wt.; and those in the leaves were 716, 150, 18.1, 157, and 88.3 mg kg–1 dry wt. The results of this study indicated that P. australis has the ability to remove simultaneously these metals from water, making it a potential species for phytoremediation of wastewater from Pb-Zn mine.

Acute and chronic toxicity studies on Polygonum glabrum in experimental animals

2020 ◽  
Vol 3 (1) ◽  
pp. 7-10
Author(s):  
Saravanakumar A ◽  
Gandhimathi R
Keyword(s):  
Chronic Toxicity ◽  
Clinical Stage ◽  
Herbal Medicines ◽  
Plant Roots ◽  
Root Extract ◽  
Experimental Animals ◽  
Toxicity Studies ◽  
Acute And Chronic Toxicity ◽  
Diuretic Agents

Polygonum glabrum is being used in traditional and folklore medicine to treat pneumonia and jaundice. Plant roots are used in ayurvedic preparations to treat fever and colic. The leaves are used as diuretic agents and process vermifuge action. Plant decoction is also used in the treatment of Rheumatism. Besides having many uses and folklore claims, herbal medicines are to be thoroughly investigated for their toxicity also. Therefore this work is being carried out to examine the toxicity of the drug and established dose is safe to use in the clinical stage. The current research studied the acute and chronic toxicity of Polygonum glabrum root extract in rats. It is proved that there was no change in any parameter tested both in acute and chronic toxicity, which means the extract is safe and non-toxic at the dose of 2g/kg also.

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