Plant Screening and Comparison of Ceratophyllum demersum and Hydrilla verticillata for Cadmium Accumulation

2004 ◽  
Vol 73 (3) ◽  
Author(s):  
S. Bunluesin ◽  
M. Kruatrachue ◽  
P. Pokethitiyook ◽  
G. R. Lanza ◽  
E. S. Upatham ◽  
...  
Keyword(s):  
Hydrilla Verticillata ◽  
Cadmium Accumulation ◽  
Ceratophyllum Demersum

scholarly journals Defense Mechanisms of Two Pioneer Submerged Plants during Their Optimal Performance Period in the Bioaccumulation of Lead: A Comparative Study

2018 ◽  
Vol 15 (12) ◽  
pp. 2844 ◽  
Author(s):  
Dian Li ◽  
Linglei Zhang ◽  
Min Chen ◽  
Xiaojia He ◽  
Jia Li ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Protein Content ◽  
Defense Mechanisms ◽  
Hydrilla Verticillata ◽  
Optimal Performance ◽  
Ceratophyllum Demersum ◽  
Contaminated Water ◽  
Submerged Plants ◽  
Significant Difference ◽  
Mda Content

Ceratophyllum demersum L. and Hydrilla verticillata (L.f.) Royle, two pioneer, submerged plants, effectively remove heavy metals from contaminated water. The present work evaluates the bioaccumulation and defense mechanisms of these plants in the accumulation of lead from contaminated water during their optimal performance period. C. demersum and H. verticillata were investigated after 14 days of exposure to various lead concentrations (5–80 μM). The lead accumulation in both C. demersum and H. verticillata increased with an increasing lead concentration, reaching maximum values of 2462.7 and 1792 mg kg−1 dw, respectively, at 80 μM. The biomass and protein content decreased significantly in C. demersum when exposed to lead. The biomass of H. verticillata exposed to lead had no significant difference from that of the controls, and the protein content increased for the 5–10 μM exposure groups. The malondialdehyde (MDA) content and superoxide dismutase (SOD), peroxidase (POD), and polyphenol oxidase (PPO) activities were much higher in C. demersum, suggesting considerable damage from lipid peroxidation and sensitivity to lead stress. Enzyme inhibition and inactivation were also observed in C. demersum at high lead concentrations (40–80 μM). The excellent growth status, low damage from lipid peroxidation, and high activity of catalase (CAT) and phenylalanine ammonia-lyase (PAL) observed in H. verticillata illustrate its better tolerance under the same lead stress.

scholarly journals Comparison of generic and proprietary aquatic herbicides for control of invasive vegetation; part 3 : submersed plants

2021 ◽  
Author(s):  
Christopher Mudge ◽  
Kurt Getsinger
Keyword(s):  
Active Ingredient ◽  
Myriophyllum Spicatum ◽  
Hydrilla Verticillata ◽  
Growth Chamber ◽  
Small Scale ◽  
Ceratophyllum Demersum ◽  
Eurasian Watermilfoil ◽  
Severity Of Injury ◽  
Aquatic Herbicides ◽  
Generic Products

Herbicide selection is key to efficiently managing nuisance vegetation in our nation’s waterways. After selecting the active ingredient, there still remains multiple proprietary and generic products to choose from. Recent small-scale research has been conducted to compare the efficacy of these herbicides against floating and emergent species. Therefore, a series of mesocosm and growth chamber trials were conducted to evaluate subsurface applications of the following herbicides against submersed plants: diquat versus coontail (Ceratophyllum demersum L.), hydrilla (Hydrilla verticillata L.f. Royle), southern naiad (Najas guadalupensis (Sprengel) Magnus), and Eurasian watermilfoil (Myriophyllum spicatum L.); flumioxazin versus coontail, hydrilla, and Eurasian watermilfoil; and triclopyr against Eurasian watermilfoil. All active ingredients were applied at concentrations commonly used to manage these species in public waters. Visually, all herbicides within a particular active ingredient performed similarly with regard to the onset and severity of injury symptoms throughout the trials. All trials, except diquat versus Eurasian watermilfoil, resulted in no differences in efficacy among the 14 proprietary and generic herbicides tested, and all herbicides provided 43%–100% control, regardless of active ingredient and trial. Under mesocosm and growth chamber conditions, the majority of the generic and proprietary herbicides evaluated against submersed plants provided similar control.

scholarly journals The Competition between of invasive Hydrilla verticillata L.f. and native Ceratophyllum demersum L. in monocultures and mixed cultures experimental

2019 ◽  
pp. 1933-1947
Author(s):  
Sadiq Kadhum Lafta Alzurfi ◽  
Ahmed A. Motar ◽  
Furqan Y. Jawad Sharba
Keyword(s):  
Superoxide Dismutase ◽  
Competitive Advantage ◽  
Hydrilla Verticillata ◽  
Experiment Design ◽  
Mixed Cultures ◽  
Competition Experiment ◽  
Control Treatment ◽  
Ceratophyllum Demersum ◽  
Total Chlorophyll ◽  
Chlorophyll Protein

     The present study aims to assess inter-specific competition between Hydrilla verticillata and Ceratophyllum demersum. A competition experiment design has five treatment combinations to terminal shoots of C. demersum only, terminal shoots of H. verticillata only and three different treatment combinations of C. demersum and H. verticillata together. Our results showed parameters growth of C. demersum were decreased of which, total chlorophyll, protein, and biomass while Superoxide dismutase (SOD), and Catalase (CAT) enzymes increase were significantly (p<0.05) compare with control treatment. While H. verticillata were increased total chlorophyll, biomass, CAT and little increase in protein and SOD were significantly (p<0.05) compare with control treatment. Therefore, due to the competition, with the introduction of C. demersum, the performances growth of H. verticillata were increased. Based on our result, showed H. verticillata and C. demersum species were coexist, C. demersum will have a competitive advantage over H. verticillata. Therefore, this study suggests, H. verticillata could out-compete for C. demersum in many situations, that despite the similar ecology.

scholarly journals The Use of Constructed Wetland for Mitigating Nitrogen and Phosphorus from Agricultural Runoff: A Review

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 476
Author(s):  
Jiayu Li ◽  
Bohong Zheng ◽  
Xiao Chen ◽  
Zhe Li ◽  
Qi Xia ◽  
...  
Keyword(s):  
Plant Species ◽  
Constructed Wetlands ◽  
Constructed Wetland ◽  
Lemna Minor ◽  
Hydrilla Verticillata ◽  
Agricultural Runoff ◽  
Structure Design ◽  
Ceratophyllum Demersum ◽  
Nitrogen And Phosphorus ◽  
Emergent Plants

The loss of nitrogen and phosphate fertilizers in agricultural runoff is a global environmental problem, attracting worldwide attention. In the last decades, the constructed wetland has been increasingly used for mitigating the loss of nitrogen and phosphate from agricultural runoff, while the substrate, plants, and wetland structure design remain far from clearly understood. In this paper, the optimum substrates and plant species were identified by reviewing their treatment capacity from the related studies. Specifically, the top three suitable substrates are gravel, zeolite, and slag. In terms of the plant species, emergent plants are the most widely used in the constructed wetlands. Eleocharis dulcis, Typha orientalis, and Scirpus validus are the top three optimum emergent plant species. Submerged plants (Hydrilla verticillata, Ceratophyllum demersum, and Vallisneria natans), free-floating plants (Eichhornia crassipes and Lemna minor), and floating-leaved plants (Nymphaea tetragona and Trapa bispinosa) are also promoted. Moreover, the site selection methods for constructed wetland were put forward. Because the existing research results have not reached an agreement on the controversial issue, more studies are still needed to draw a clear conclusion of effective structure design of constructed wetlands. This review has provided some recommendations for substrate, plant species, and site selections for the constructed wetlands to reduce nutrients from agricultural runoff.

scholarly journals Seasonal Study for Habitat of Myriophyllum spicatum L. in Al-Burgga Marsh, Hor Al-Hammar, Southern Iraq

2014 ◽  
Vol 11 (3) ◽  
pp. 1145-1154
Author(s):  
Baghdad Science Journal
Keyword(s):  
Water Depth ◽  
Vegetation Cover ◽  
Myriophyllum Spicatum ◽  
Negative Relationship ◽  
Chemical Properties ◽  
Hydrilla Verticillata ◽  
Ceratophyllum Demersum ◽  
Light Penetration ◽  
Associated Species ◽  
Negative Relationships

Myriophyllum spicatum distribution in Al-Burgga marsh, Hor Al-Hammar was described in relation to some of the physical-chemical properties for its habitat (water depth, light penetration, water temperature, water salinity, pH, dissolved oxygen, Ca+2, Mg+2, reactive NO2=, reactive NO3-1, and reactive PO4-3) during 2011, seasonally. CANOCO ordination program (CCA) was used to analyse the data. Its vegetation cover percentage was with its peak at summer, its value was 90 %, while the lowest value was 20 % in winter. Statistically, Positive relationships for WT, sal., Ca+2, Mg+2, reactive NO2=, reactive NO3-1, and reactive PO4-3 with the vegetation cover percentage were observed. While, negative relationships for WD, pH, and DO with the vegetation cover percentage were observed. Also, the negative relationship between light penetration and the vegetation cover percentage can be attributed to the water depth, which was shallow and the light penetration followed water depth and reached to the bottom during all of the period study. In addition, two species were registered with Myriophyllum spicatum community as associated species, which are Hydrilla verticillata and Ceratophyllum demersum.

scholarly journals The genus Sorastrum Kützing (Hydrodictyaceae, Sphaeropleales, Chlorophyta) from India, with a new species S. philiposianum

2013 ◽  
Vol 20 (2) ◽  
pp. 243-249
Author(s):  
Jai Prakash Keshri ◽  
Prasant Mallick
Keyword(s):  
New Species ◽  
West Bengal ◽  
Hydrilla Verticillata ◽  
Low Ph ◽  
Ceratophyllum Demersum ◽  
Aquatic Weeds ◽  
Ipomoea Aquatica ◽  
Plant Taxon ◽  
First Time ◽  
A New Species

In the present paper five species of Sorastrum Kützing including a new species, Sorastrum philiposianum have been described from Bankura and Purulia districts of West Bengal, India. Amongst these species S. indicum Bernard and S. hathoris (Cohn) Schmidle are being reported for the first time from India. Moreover, S. americanum (Bohlin) Schmidle is an addition to West Bengal algae. All the specimens have been collected from desmids habitats of West Bengal having a low pH (5.0-6.5) and those were growing lodged on submerged portions of the aquatic weeds like Ceratophyllum demersum L., Hydrilla verticillata (L.f.) C. Presl and Ipomoea aquatica Forssk.DOI: http://dx.doi.org/10.3329/bjpt.v20i2.17399Bangladesh J. Plant Taxon. 20(2): 243-249, 2013

scholarly journals Pembesaran Ikan Nila (Oreochromis niloticus) pada Budidaya Sistem Resirkulasi Menggunakan Filtrasi Tanaman Hydrilla verticillata dan Ceratophyllum demersum

2021 ◽  
Vol 5 (3) ◽  
pp. 245
Author(s):  
Bayu Pranata ◽  
Aradea Bujana Kusuma
Keyword(s):  
Oreochromis Niloticus ◽  
Hydrilla Verticillata ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Ceratophyllum Demersum ◽  
Feed Conversion

Penelitian ini mengkombinasikan tanaman Hydrilla verticillata dengan Ceratophyllum demersum sebagai filter pada budidaya ikan Nila sistem resirkulasi. Tujuan penelitian yaitu untuk mengetahui tingkat pertumbuhan ikan Nila pada budidaya sistem resirkulasi. Filtrasi yang digunakan pada budidaya sistem resirkulasi yaitu tanaman H. verticillata dan C. demersum. Metode penelitian menggunakan rancangan acak lengkap (RAL). Adapun parameter yang diamati berupa kelangsungan hidup ikan, pertumbuhan mutlak, laju pertumbuhan spesifik (SGR), Feed Conversion Ratio (FCR) dan kualitas air. Kelangsungan hidup ikan selamat pemeliharaan yaitu 100%. Pertumbuhan bobot mutlak individu berkisar 8.76 sampai 16.6 gr/minggu. Laju pertumbuhan spesifik ikan Nila berkisar 2.74 sampai 4.49%. Nilai FCR sangat bagus yaitu 1.2 dan rata-rata nilai suhu, pH dan DO masih pada kisaran yang layak untuk pertumbuhan ikan Nila. Selama pemeliharaan hanya dilakukan satu kali pergantian air. Budidaya sistem resirkulasi tersebut sangat efektif dan efesien untuk diterapkan, terutama pada wilayah dengan ketersediaan air yang terbatas.

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