Differences In Growth Parameters Research Articles

Skeletal extension, density and calcification rates of massive free-living coral Porites lobata Dana, 1846

Hermatypic corals are an important sessile group in the benthic structure of tropical coral reef communities. Many organisms, in response to the environmental conditions, have developed different strategies of growth by modifying their morphologies and reproduction mode, as is the case of free-living colonies called coralliths. So far, important parameters such as calcification, growth rates and their relation with biotic and abiotic factors on coralliths have not been described. This study represents the first record of a corallith form of Porites lobata and provides information on its sclerochronology. Coral growth parameters of different coralliths were compared by measuring extension rate (cmy−1), skeletal density (gcm−3), calcification rate (gcm−2y−1), average age (yr) and sphericity (S). The influence of the environment on corallith growth was assessed using water temperature as an abiotic factor and bioturbation by fish as a biotic factor. Analysis of annual density bands using X-ray densitometry provided a mean extension rate of 0.47±0.23cmy−1, skeletal density of 1.08±0.14gcm−3, and calcification rate of 0.51±0.26gcm−2y−1. The results reveal differences in growth parameters between coralliths including a strong relationship of calcification rate with seawater temperature. In addition, direct and indirect bioturbations promoted the colony rotation resulting in a hemispherical form. Hence, the evidence suggests that scleractinian corals have developed an important growth strategy that allows the species to form new colonies and maintain successful coral reef communities through free-living corallith growth.

Longitudinal evaluation of 100% fruit juice consumption on BMI status in 2-5-year-old children.

Obesity in childhood is related to multiple lifestyle factors. Our objective was to evaluate the relationship between consumption of 100% fruit juice and weight status over time among pre-school children. We used linear and logistic multivariable regression to evaluate body mass index (BMI) z-score and overweight/obese status as a function of 100% fruit juice intake for 8950 children examined at ages 2, 4 and 5 years as part of the Early Childhood Longitudinal Study-Birth Cohort, a representative sample of the United States. Cross-sectional analysis at ages 4 and 5 years showed no difference in the prevalence of overweight and obesity between consistent juice drinkers and inconsistent/non-drinkers. Longitudinal analysis found that children who drank 100% juice consistently at age 2 years had greater increases in BMI z-score by age 4 years than infrequent/non-drinkers (P < 0.0001), a difference driven by lesser increases in height z-score (P = 0.0003) and slightly greater increases in weight z-score (P = 0.0550) among consistent juice drinkers over the 2 to 4 year time period. Additionally, consistent juice drinkers at age 2 had higher odds of becoming overweight by age 4 (adjusted odds ratio 1.30; CI 1.06-1.60). These differences in growth parameters were not noted between ages 4 and 5 years. Drinking 100% fruit juice regularly at age 2 is associated with higher odds of becoming overweight between 2 and 4 years. Paediatricians and parents can discourage excessive fruit juice consumption as part of a larger effort to avoid unhealthy gain in BMI in young children.

Sex-specific food intake in whiting Merlangius merlangus.

In this study, the topic of sexual growth dimorphism in whiting Merlangius merlangus is examined. To understand the magnitude and underlying mechanisms, North Sea International Bottom Trawl Survey (IBTS) data and two additional datasets from the third quarter of 2007 and the first quarter of 2012 were analysed. Merlangius merlangus displays distinct differences in growth parameters between males and females, with females reaching a higher asymptotic length (L∞ ) than males. To identify the mechanisms which lead to higher growth in females, the quantity and the quality of the diet of M. merlangus in the North Sea were investigated to compare the sex-specific energy uptake levels. The diet composition did not differ between the sexes, but females had higher stomach content masses than males of the same total length (LT ), and showed lower proportions of empty stomachs. Moreover, female M. merlangus had higher liver and empty stomach masses compared with males of the same size, which indicates additional sex-specific differences in the metabolic costs and energy allocation patterns. Finally, interannual differences were found in the stomach contents, the share of empty stomachs and liver masses of M. merlangus in the North Sea.

EFFECTS OF FERROUS TOXICITY ON SEEDLING TRAITS AND ION DISTRIBUTION PATTERN IN UPLAND AND LOW LAND RICE UNDER HYDROPONIC CONDITIONS

Environmentally, nutritional disorders are the major constraints due to the change in soil pH for rice crop cultivated under different irrigation system. Iron toxicity is one of the famous nutritional disorders caused by the excessive uptake of ferrous ion in low pH under aerobic conditions. This research study was focused to measure the effect of different levels of ferrous stress on seedling traits, distribution of ferrous, potassium ions in two upland rice and three lowland rice varieties. The mean comparison of growth parameters were formulated using least significant differences, as well as the experimental treatments were compared by analysis of variance. Varieties showed significant differences for growth parameters; however, lowland rice varieties like Pokkali and Firat exhibited the minimum deterioration in growth parameters. The root length was significantly reduced under ferrous stress in all varieties. Ferrous accumulation was high in roots compared to aerial plant parts and flag leaves exhibited the minimum accumulations. Reduction of potassium reflected in all plant parts when an increased in stress was imposed. Upland rice varieties were found sensitive compared to lowland rice varieties. It is therefore; concluded that the growth parameters would be a reflecting index for ferrous toxicity in rice. Furthermore, the availability and uptake of potassium is improved, it may minimize the effects of ferrous toxicity.

Dietary Levamisole as Immunostimulant for Striped Surubim, Pseudoplatystoma reticulatum

AbstractImmunostimulants are better suited for disease control than using drugs and chemicals as remedies in animal production. This study evaluates effects of dietary levamisole on growth and immunological parameters response of Pseudoplatystoma reticulatum. A trial was set up in a completely randomized design with six treatments – 0.0, 50, 100, 200, 300, and 500 mg levamisole per kg of feed (n = 3) – fed until apparent satiation, twice a day, for 60 d to striped surubim (77.68 ± 2.5 g) randomly stocked in 18 plastic tanks (300 L; 10 fish per tank). Dietary levamisole affected lysozyme activity and concentration, the best effects were recorded for fish fed 247 mg levamisole per kg of feed, that is, levamisole positively influenced innate immune system of striped surubim. However, dietary levamisole did not affect serum protein, albumin and globulins, as well as leukocyte respiratory burst activity and leukocyte proliferation. No differences in growth parameters were recorded. Dietary levamisole improved immunological responses of striped surubim.

Distribution and some biological parameters of the red gurnard, Chelidonichthys cuculus (Actinopterygii, Scorpaeniformes, Triglidae) in the north-central Adriatic Sea

Background. Red gurnard, Chelidonichthys cuculus (Linnaeus, 1758), is distributed in the Mediterranean Sea, Black Sea, and in the eastern Atlantic Ocean from Norway to Mauritania, although it is rarely found in the North Sea and on the Norwegian shelf. The aim of this work was to conduct a comprehensive study of red gurnard in the Adriatic Sea on selected aspects the population biology and some of its environmental implications . Materialsandmethods. The sampling covered the entire subdivision GSA17 (north-central Adriatic Sea) and it was based on several bottom trawl surveys of MEDITS and GRUND projects from 2000 through 2009. Biometric parameters, as well as the spatial- and depth distributions were analyzed. The parameters such as the length–weight relation, sex, gonad maturity stage, and the stomach content were determined on a subsample of 539 specimens collected seasonally (summer and autumn–winter) within 2007–2009. The data were processed statistically . Results. Chelidonichthys cuculus was mainly distributed in the central Adriatic. Juveniles showed a distribution in shallower waters while adults tended to migrate towards the Croatian coast at greater depths. The total length of the fish sampled ranged from 40 to 303 mm (TL). We assumed the length of 100 mm as a threshold separat ing juveniles from adults and the length range of 170–190 mm as the maturity size for females and males. Isometric- and allometric growth patterns were showed for the juveniles and the adults, respectively. The diet was based almost exclusively on crustaceans (IRI% > 98%) and it did not change upon reaching the sexual maturity. Chelidonichthys cuculus should be considered a specialist predator feeding mostly on necto-benthic lophogastrids (IRI% > 72%) . Conclusion. This work constitutes an attempt to summarize some environmental and biology aspects of the red gurnard in Adriatic population: differences in depth distribution and growth were found between juveniles and adults but not in diet. Males and females showed differences in growth parameters. Extending the studied area and collecting data of red gurnard in the main areas of production should help in better understanding the biolo gy and dynamics of this species .

Effect of acid, desiccation and heat stresses on the viability of Cronobacter sakazakii during rehydration of powdered infant formula and in simulated gastric fluid

The aim of the present study was to evaluate survival of Cronobacter sakazakii adapted or shocked to heat, acid or desiccation during rehydration of powdered infant formula and in simulated gastric fluid (SGF). Four C. sakazakii strains isolated in South Korea were individually adapted or shocked under stress conditions, equal volumes of each strain were combined to form a cocktail. Heat and acid resistance of stressed cells were determined by subjecting the cells to rehydrated infant formula (RIF) reconstituted at 55, 58, 61, 64, 67, and 70 °C for 1 min, and in SGF (pH 2.5), respectively. The growth kinetic parameters of stressed cells at different storage temperatures were compared using the Baranyi model. Except for desiccation, all stress conditions significantly (P < 0.05) enhanced the heat resistance of C. sakazakii compared with unstressed cells. Long-term exposure of cells to heat and acid improved their acid resistance in SGF whereas acid resistance of heat shocked and desiccated cells were similar and significantly (P < 0.05) lower than that of unstressed cells, respectively. Heat, acid adapted and desiccated cells in RIF had longer lag time duration during storage at 12 °C than unstressed cells, while there was no significant (P > 0.05) difference in growth parameters between unstressed and stressed cells at 25 °C. No growth was detected at 5 °C. Thus, this study indicates that long-term exposure of C. sakazakii to mild heat and acid could enhance their survivability during rehydration of infant formula at high temperatures or in SGF. Furthermore, this study suggests that the prepared and leftover RIF must be stored at refrigeration temperature to inhibit the growth of C. sakazakii, minimizing the risk of possible outbreaks.

Children and youth with type 1 diabetes developing concomitant autoimmune disease do not exhibit worsening metabolic control or growth impairment

AbstractThis study aimed to evaluate the effect of type 1 diabetes mellitus (T1DM) and concurrent autoimmune condition (AI) on glycaemic control and growth in children.Twenty‐eight children with T1DM and associated autoimmune condition were matched by sex and age at onset with two controls each. HbA1c, height standard deviation scores (SDS), weight SDS and BMI SDS were measured between six months and five years after developing T1DM.We included 28 children with T1DM and AI (10 males) and 56 (20 males) age and sex matched controls with T1DM. Out of the 28 patients with AI conditions, 21 (75%) had coeliac disease (CD), eight (28%) had autoimmune hypothyroidism (AH) and one (4%) patient had both CD and AH. Development of an AI condition occurred at 2.3 ± 3.1 years after diagnosis of T1DM. There was no significant difference in growth parameters between children in the AI group compared with controls from diagnosis to five years after diagnosis of T1DM. Children in the AI group had a significantly better HbA1c control six months after diagnosis, but no significance was noted at one, two, three and five years. Multiple logistic regression of factors showed no independent risk factors that affected the development of an AI.Suboptimal therapeutic control of an autoimmune condition such as coeliac disease and T1DM is known to lead to impairment in growth and substantial morbidity. Our study shows children with T1DM developing a concurrent autoimmune disease were not at risk of worsening metabolic control or growth impairment in the long term. Copyright © 2014 John Wiley &amp; Sons, Ltd.

Growth Performance of Teak Plantations Managed Under Different Treatments

Tectona grandis, commonly known as Teak, is an exotic species and is one of the mostdemanding and valuable timber species grown in Sri Lanka. Main factors that affect thegrowth of teak are site quality, planting material and silvicultural treatment applied whenmanaging the trees as plantations. Teak plantations have been established mainly in the dryand intermediate zones of the low country. The present study was conducted with theobjective of comparing the growth performance across the growth stages of young teakplantations managed under different treatment regimes.Nine teak plantations in the intermediate zone of the low country were selected for thepresent study. Three different management regimes were used for the selected plantationswhich can be categorized as, less intensive management (LM) and two intensive managementregimes (IM). Dbh and height of trees of the sample plots located at random were measuredusing standard methods. The tree growth records in those plantations in the past wereobtained by the available data records. Timber volumes of measured trees were calculatedusing the allometric equation developed by Subasinghe in 2004 for Teak. One way ANOVAtestwas used to compare the differences ofdbh, height and timber volume values of differentplantations considered in this study.Results indicate that dbh, height and timber volume of the IM plantation in Monaragala aresignificantly higher than those of other plantations across the growth stages. There are nosignificant differences in growth parameters and volume between state-owned plantations.There are also no significant differences between dbh, height and volume between LM andstate-owned plantations.

Effect of Bac-D™ on Hatchability, Conductance, Growth Rate and Feed Conversion on Turkey Poults

The major factor facing the commercial poultry industry today is the cost of feed. Breeding companies have put great emphasis on selecting their lines for rapid growth and low feed to gain to increase the efficiency of production. Even though genetics have made drastic differences in growth parameters, evident from the last 45 years of genetic selection, producers still employ other methods to help birds perform more efficiently including; feed additives, temperature control, incubation, ventilation, hatchery sanitation and egg disinfection. Bac-DTM is a novel disinfectant, which is currently being used as a wound wash for humans and animals. The product utilizes benzalkonium chloride, a well-studied quaternary ammonium compound, which has been generally regarded as safe (GRAS). Bac-DTM has been effectively used as a human first aid antiseptic for many years. The objectives of this trial were to determine the effects of Bac-DTM on egg conductance, hatchability, body weight and feed conversion (FC) in turkey eggs and poults. Turkey eggs were washed with Bac-DTM then incubated under standard conditions while recording egg conductance and hatchability. Body weights were measured at hatch, 21d and 42d. The results showed that egg conductance, hatchability, or body weights of chicks hatched from Bac-DTM washed eggs did not differ significantly from water washed controls. However, mean feed conversion was significantly lower (p<0.0062) in Bac-DTM poults (FCR = 1.10) compared with the control birds (FCR = 1.17) at 21d. The improvement in FCR may be due to reduced levels of slightly pathogenic bacteria in the gut resulting from the Bac-DTM egg sanitization. The potential reduction in FCR will be of significant economic impact to poultry producers.

Different Materials of Substrates in the Production of Chili Apple Seedlings (Capsicumpubescens R. and P.) Grajales ST

ABSTRACTThis study aimed to evaluate the effect of 12 substrates in the seedling growth of chili apple (Capsicum pubescens R. &amp; P.) hybrid Grajales ST. The substrates were prepared with different proportions of five materials: perlite, coconut fiber, loam, Sunshine3 ® and wood dust. The seeds were sown in trays of 50 cavities. For the substrates were determined physical and chemical properties. Significant differences in growth parameters of seedlings are the effect of the substrate. Based on the remarkable accumulation of dry matter of each of the organs of the seedling, and their relative distribution, one can surmise a seedling quality with 47.70 % dry matter in leaves, 35.34 % in stem and 16.95 % in root. The substrate with better features for the production of chile apple seedlings was prepared with 25 % loam and 75 % perlite (v/v), which showed retention of 85.5 % moisture, electrical conductivity of 0.03 dS·m-1 and total porosity of 62.5 %.

Growth and Motility of Gut Commensal Escherichia Coli in Health and Disease

Despite the growth of E. coli is comparatively well investigated, there is still a lack of knowledge on growth of gut commensal E. coli in health and disease.Our previous investigations have shown that there is an obvious deviation from the norm in the gut microbiota of Armenian Crohn's disease (CD) patients. The proportions of members of the CFB lineages were similar in the healthy and diseased individuals, while the increased numbers of Enterobacteriaceae members in fecal samples were found. It has been shown that growth of commensal E. coli isolates from the inflamed gut differed from those of E. coli in healthy individuals.In this study we inspected the effect of metronidazole (the antibiotic used in CD therapy) on growth and motility of commensal E. coli from the healthy and CD voluntaries.27 patients with CD and 35 healthy individuals were enrolled in this study. The logistic differential equation of Verhulst has been used to characterize the growth of commensal E. coli isolates.Results have demonstrated the increased numbers of E. coli isolates in feces of subjects with active CD. In vitro investigations of growth and motility of gut commensal E. coli isolates have shown that addition of metronidazole to the culture medium does not affect the growth parameters of isolates of healthy people. While statistically significant differences in growth parameters were obtained for patients' isolates in the culture medium with metronidazole, in contrast to the medium without it.The presented data show that the chronic inflammation and drugs used during the inflammation effect on physiological characteristics of gut commensal bacteria.

Effects of temperature and salinity on growth and survival of the Pacific red snapper Lutjanus peru (Pisces:Lutjanidae) juvenile

The present study evaluates the effects of temperature (25 and 30oC) and salinity (25, 35 and 45 psu) on juvenile growth and survival. All the experiments were carried out under rearing conditions. A total of 270 specimens were used for the experiments. The results showed that more than 86% of the snapper survived at 35 to 45 psu salinity. Significant differences in growth parameters, such as the specific growth rate and weight gain were observed in fish reared at temperatures of 25 and 30°C and salinities of 35 and 45 psu. Increased salinity beyond 45 psu negatively affected growth of the Pacific red snapper used in this trial. The effects of temperature and salinity on growth performance a survival rate indicated that red snapper is an euryhaline species, that may tolerate wide salinity ranges, showing that has a good potential to grow in waters of lower salinity than the sea.

Effect of soybean diet: Growth and conversion efficiencies of fingerling of stinging cat fish, Heteropneustes fossilis (Bloch)

Replacement of 15% protein from soybean meal in Diet II was feasible for the stinging cat fish, Heteropneustes fossilis and no significant differences in growth parameters were found in fish fed soybean meal-based diets compared to those fed control diet (Diet I). Live weight gain percent (165%) obtained in fish fed soybean meal based diet was not significantly different to that achieved (171%) in fish fed Diet I. Specific growth rate percent, SGR (2.79%), feed conversion ratio FCR (1.40) and protein efficiency ratio PER (1.79) recorded in fish fed Diet II were also more less comparable to those fed control diet. Mortality was not recorded in the period of the feeding trial. Body composition of the fish fed soybean meal based diet (Diet II) was also comparable to that fed control diet. Significantly higher fat content was noted in fish fed Diet II. However, the protein contents were not changed in fish fed Diet I and II. Similarly, no significant differences (P>0.05) in protein productive value were noted between the two groups. However, ash content differed significantly (P<0.05) in fish fed Diet I and II. Although soybean meal-based diet depressed growth and feed conversion efficiencies of the fish to some extent, inclusion of soybean meal was found to be cost-effective alternative to fish meal.

INCLUSÃO DE DIFERENTES FONTES DE AMIDO NA DIETA DE JUNDIÁS (Rhamdia quelen): PARÂMETROS METABÓLICOS E BIOQUÍMICOS

This study was conducted to evaluate the influence of ingestion of different sources of starch on enzymatic and metabolic indicators in blood and liver of Rhamdia quelen. The experiment was conducted during 20 days in water recirculation system. Sixty fishes (initial average weight 60g) were used and divided into three treatments composed of the following diets: inclusion of peeled oats, defatted rice bran and control diet, all with 36% crude protein and 3,200 Kcal DE/Kg. There was no significant difference in growth parameters. The analysis demonstrated a reduction in liver glycogen content for the treatment with oats; however, no apparent changes in the activity of the enzymes alanine-aminotransferase and glucose-6-phosphatase were observed, raising the possibility that the fishes did not use gluconeogenesis. The blood analysis, showed no significant differences in the determinations of total cholesterol, HDL cholesterol and albumin; however, serum levels of total protein were higher for treatment with defatted rice bran, and triglyceride levels were lower in animals that received diet containing oat as starch source. It can be concluded that Rhamdia quelen is able to metabolize various sources of carbohydrate, without the need to use either diet or body protein as an energy source.KEYWORDS: carbohydrate; fish nutrition; intermediary metabolism.

Comparative age and growth of common snook &lt;i&gt;Centropomus undecimalis&lt;/i&gt; (Pisces: Centropomidae) from coastal and riverine areas in Southern Mexico

Common snook Centropomus unidecimalis is an important commercial and fishery species in Southern Mexico, however the high exploitation rates have resulted in a strong reduction of its abundances. Since, the information about its population structure is scarce, the objective of the present research was to determine and compare the age structure in four important fishery sites. For this, age and growth of common snook were determined from specimens collected monthly, from July 2006 to March 2008, from two coastal (Barra Bosque and Barra San Pedro) and two riverine (San Pedro and Tres Brazos) commercial fishery sites in Tabasco, Mexico. Age was determined using sectioned saggitae otoliths and data analyzed by von Bertalanffy and Levenberg-Marquardt among others. Estimated ages ranged from 2 to 17 years. Monthly patterns of marginal increment formation and the percentage of otoliths with opaque rings on the outer edge demonstrated that a single annulus was formed each year. The von Bertalanffy parameters were calculated for males and females using linear adjustment and the non-linear method of Levenberg-Marquardt. The von Bertalanffy growth equations were FLt = 109.21(1-e-0.2(t+0.57)) for Barra Bosque, FLt = 94.56(1-e-027(t+0.485)) for Barra San Pedro, FLt = 97.15(1-e 0.17(t + 1.32)) for San Pedro and FLt = 83.77(1-e-026(t + 0.49)) for Tres Brazos. According to (Hotelling's T2, p < 0.05) test growth was significantly greater for females than for males. Based on the Chen test, von Bertalanffy growth curves were different among the study sites (RSS, p < 0.05). Based on the observed differences in growth parameters among sampling sites (coastal and riverine environments) future research need to be conducted on migration and population genetics, in order to delineate the stock structure of this population and support management programs.

Nestling growth of Great Tits Parus major with comparison among altitudes

Fledgling mass can have great influence on individual’s life history and reflects the availability and quality of food in the breeding territory. Thus growth curve is used to compare the difference in the quality between different ecological conditions. The aim of the study was to fill the knowledge gap on nestling growth in Great Tit in Slovenia, to determine the influence of altitude on it and to present a tool for estimating age of nestlings and key dates in breeding phenology of Great Tit. Great Tits young were monitored using nest-boxes at three locations between years 2010 and 2012. At two locations nest-boxes were placed on three separate altitudinal belts. Weight growth curve was compared with the curves from other parts of Europe. Growth curve from Slovenia differs in growth parameters from other European populations but falls within their range. Difference in growth parameters betweenseparate populations probably comes from the difference in ecological conditions. When comparing three altitudes weight parameters of hatchlings were similar at lower and middle but different at upper altitudes indicating that weigh growth changes with the altitude. Lower food abundance that comes with rising altitude may be offset by lower competition through lower breeding density (hence similar growth parameters in lower and middle altitude), but not past certain altitude. Weight parameters are usefulwhen comparing different populations, but wing-length is better in determining the age of young in the nest.

Growth peculiarities of commensal Escherichia coli isolates from the gut microflora in Crohn’s disease patients

Verhulst's logistic differential equation, popular in mathematical ecology, is used in modeling of population growth, neural networks, statistics, reaction models, Fermi distribution, modeling of tumor growth, etc. We used this function to characterize growth of commensal Escherichia coli isolates from gut microflora in Crohn's disease patients. The results of our investigations show differences in growth parameters of commensal E. coli, isolated from the gut microflora in Crohn's disease patients and healthy volunteers; it is most likely explained by the influence of chronic inflammatory processes on growth and reproduction of these bacteria. It has been established that the used mathematical model well characterizes growth of patients' gut E. coli isolates, and it can be important for the expedient probiotics' application during the disease.

Spirulina sp. LEB-18 culture using effluent from the anaerobic digestion

The carbon source is the most expensive nutrient for Spirulina production; effluents from anaerobic digestion contain this nutrient in the form of HCO3-. The aim of this study was to assess the growth kinetics, composition and fatty acid profile of Spirulina sp. LEB-18 grown in standard Zarrouk medium (NaHCO3 16.8 g L-1) and in Zarrouk medium replaced with 20% (v/v) effluent with reduced concentrations of NaHCO3 (5.3 and 2.8 g L-1). The use of effluent and lower concentrations of HCO3 was found to be an alternative to reduce the costs of Spirulina production, because there were no significant differences in growth parameters (µmax 0.324 - 0.354 d-1; Pmax 0.280 - 0.297 g L-1 d-1), in the different culture medium used. Lipids ranged between 4.9 and 5.0%; the media with effluent had higher levels of linoleic acid compared to the standard medium.

Expression of Ceratophyllum demersum phytochelatin synthase, CdPCS1, in Escherichia coli and Arabidopsis enhances heavy metal(loid)s accumulation

Phytochelatin synthase (PCS) gene encoding key enzyme for heavy metal detoxification and accumulation has been characterised from different sources and used to develop a technology for bioremediation. Past efforts provided limited success and contradictory results. Therefore, functional characterisation of PCS gene from new sources into different target systems is considered as an important task in the area of bioremediation. Earlier, we isolated and functionally characterised PCS gene from an aquatic macrophyte Ceratophyllum demersum L., a metal accumulator aquatic plant. Expression of this gene, CdPCS1, in tobacco enhanced PC synthesis and metal accumulation of transgenic tobacco plants. In the present study, we have expressed CdPCS1 in more diverse systems, Escherichia coli and Arabidopsis, and studied growth and metal accumulation of transgenic organisms. The expression of CdPCS1 in E. coli offered tolerance against cadmium as well as higher accumulation accompanied with PCS1 activity. The expression of CdPCS1 in Arabidopsis showed a significant enhanced accumulation of heavy metal(loid)s in aerial parts without significant difference in growth parameters in comparison to wild-type Arabidopsis plants. Our study suggests that CdPCS1 can be utilised for enhancing bioremediation potential of different organisms using biotechnological approaches.