Environmental perspectives of Phragmites australis (Cav.) Trin. Ex. Steudel

Srivastava, J. N.; Kalra, Swinder Jeet Singh; Naraian, Ram

doi:10.1007/s13201-013-0142-x

Cited by 87 publications

(46 citation statements)

References 104 publications

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“…These advantages make P. australis dominant in many wetland ecosystems. In the worldwide map of P. australis by Srivastava [6], the geographical distribution of P. australis extends from wetlands in cold temperate regions to tropical wetlands. Furthermore, P. australis has a robust ability to mitigate environmental pollution, making it the most preferred plant for application in constructed wetlands [7,8].…”

Section: Introductionmentioning

confidence: 99%

Short-Term Effects of Salt Stress on the Amino Acids of Phragmites australis Root Exudates in Constructed Wetlands

Xie

Wei

Ding

et al. 2020

Water

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In this study, the short-term effects of NaCl stress on the free amino acid content and composition of root exudates of Phragmites australis were evaluated. Nineteen amino acid types were detected in all samples. The results indicated that NaCl significantly influenced the total amino acid (TotAA) content. The TotAA content at 6‰ salinity (1098.79 μM g−1 DW) was up to 24 times higher than that in the control group (45.97 μM g−1 DW) but decreased to 106.32 μM g−1 DW at 6‰ salinity in the first hour. The stress period also significantly affected the TotAA content. After 4 h of stress, the TotAA content of the control and 1‰ salinity groups increased by approximately 30- and 14-fold, and those of the 3‰ and 6‰ groups decreased to 60% and 37%, respectively. The increase in TotAA content was primarily caused by the increase in proline content; the proportion of proline accounted for 58.05% of the TotAA content at 3‰ salinity level in 2 h. Most amino acids showed a significant positive correlation with each other, but proline and methionine showed a different trend. Therefore, the proline level is a useful indicator of salt stress in Phragmites australis, especially in saltwater wetlands.

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Section: Introductionmentioning

confidence: 99%

Short-Term Effects of Salt Stress on the Amino Acids of Phragmites australis Root Exudates in Constructed Wetlands

Xie

Wei

Ding

et al. 2020

Water

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“…They represent a means of potentially improving the treatment performance of the conventional pond systems by integrating the beneficial aspects of emergent macrophytes without being constrained by the requirements of shallow water depth (Dalu et al 2012;Wanda et al 2015). Similarly, they also offer some advantages over the conventional sedimentrooted wetlands such as their ability to cope up with variable water depths that are typical of any event-driven storm water system (Kerr-Upal et al 2000;Manyumba et al 2009;Srivastava et al 2014Srivastava et al , 2016.…”

Section: Introductionmentioning

confidence: 99%

Assessing the effectiveness of pollutant removal by macrophytes in a floating wetland for wastewater treatment

et al. 2017

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The study aimed to evaluate the removal of pollutants by floating treatment wetlands (FTWs) using an edible floating plant, and emergent macrophytes. All experiments were performed under ambient conditions. Physico-chemical parameters were measured, along with microbiological analysis of biofilm within the roots, water column, and sludge and gravel zone. Nitrification and denitrification rates were high in the water zone of Azolla filiculoides, Lemna minor, Lactuca sativa, P. stratiotes, and Phragmites australis. Phosphate removal efficiencies were 23, 10, and 15% for the free-floating hydrophytes, emergent macrophytes, and control and edible plants, respectively. The microbial community was relatively more active in the root zone compared to other zones. Pistia stratiotes was found to be the efficient in ammonium (70%) and total nitrogen (59%) removal. Pistia stratiotes also showed the highest microbial activity of 1306 mg day -1 , which was 62% of the total volume. Microbial activity was found in the water zone of all FTWs expect for P. australis. The use of P. stratiotes and the edible plant L. sativa could be a potential option to treat domestic wastewater due to relatively high nutrient and organic matter removal efficiency.

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“…Phragmites australis is a cosmopolitan and successional species that is distributed all over the world (except Antarctica), and still it remains unclear about its originality in many regions of the earth 21 . It has been considered as a weedy and invasive population in North America, Australia, and Madagascar [65][66][67] . Phragmites is widely-dominated across most parts of temperate regions of Australia 65 .…”

Section: Methodsmentioning

confidence: 99%

Nitrogen immobilization may reduce invasibility of nutrient enriched plant community invaded by Phragmites australis

Uddin

Robinson

Asaeda

2020

Sci Rep

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Nutrient enrichment, particularly nitrogen, is an important determinant of plant community productivity, diversity and invasibility in a wetland ecosystem. It may contribute to increasing colonization and dominance of invasive species, such as Phragmites australis, especially during wetland restoration. Providing native species a competitive advantage over invasive species, manipulating soil nutrients (nitrogen) may be an effective strategy to control the invasive species and that management tool is essential to restore the degraded ecosystems. Therefore, we examined competition between Phragmites australis and Melaleuca ericifolia in a greenhouse setting with activated carbon (AC) treatments, followed by cutting of Phragmites shoots in nutrient-rich soils. Additionally, we evaluated the effect of AC on plant-free microcosms in the laboratory, to differentiate direct effects of AC on soil microbial functions from indirect effects. Overall, the objective was to test whether lowering nitrogen might be an effective approach for reducing Phragmites invasion in the wetland. The AC reduced Phragmites total biomass more significantly in repeated cut regime (57%) of Phragmites shoots compared to uncut regime (39%). Conversely, it increased Melaleuca total biomass by 41% and 68% in uncut and repeated cut regimes, respectively. Additionally, AC decreased more total nitrogen in above-ground biomass (41 to 55%) and non-structural carbohydrate in rhizome (21 to 65%) of Phragmites, and less total nitrogen reduction in above-ground biomass (25 to 24%) of Melaleuca in repeated cut compared to uncut regime. The significant negative correlation between Phragmites and Melaleuca total biomass was observed, and noticed that Phragmites acquired less biomass comparatively than Melaleuca in AC-untreated versus AC-treated pots across the cutting frequency. AC also caused significant changes to microbial community functions across Phragmites populations, namely nitrogen mineralization, nitrification, nitrogen microbial biomass and dehydrogenase activity (P ≤ 0.05) that may potentially explain changes in plant growth competition between Phragmites and Melaleuca. The overall effects on plant growth, however, may be partially microbially mediated, which was demonstrated through soil microbial functions. Results support the idea that reducing community vulnerability to invasion through nutrient (nitrogen) manipulations by AC with reducing biomass of invasive species may provide an effective strategy for invasive species management and ecosystem restoration.There are numerous global environmental issues ranging from climate change, global warming, pollution, biological invasion to loss of biodiversity and many more 1 . Amongst these, biological invasion has been considered the most persistent issue to cause biodiversity loss and species extinction placing negative impacts on natural communities and ecological characteristics 2,3 . In parallel, nutrient enrichment is augmenting the invasion process, and is considered a communal obstacle in impl...

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Environmental perspectives of Phragmites australis (Cav.) Trin. Ex. Steudel

Cited by 87 publications

References 104 publications

Short-Term Effects of Salt Stress on the Amino Acids of Phragmites australis Root Exudates in Constructed Wetlands

Short-Term Effects of Salt Stress on the Amino Acids of Phragmites australis Root Exudates in Constructed Wetlands

Assessing the effectiveness of pollutant removal by macrophytes in a floating wetland for wastewater treatment

Nitrogen immobilization may reduce invasibility of nutrient enriched plant community invaded by Phragmites australis

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