Nitrogen nutrition of Salvinia natans: Effects of inorganic nitrogen form on growth, morphology, nitrate reductase activity and uptake kinetics of ammonium and nitrate

Jampeetong, Arunothai; Brix, Hans

doi:10.1016/j.aquabot.2008.06.005

Cited by 81 publications

(48 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The difference might be because the effect of temperature on NR activity was dependent on environmental photoperiod, plant species, and growing period of determined plants ( Deane-Drummond et al 1980;Chopra 1983). Inasmuch as ammonium was the preferred form of N taken up (Jampeetong and Brix 2009), needle NR activity of both species was significantly reduced under additional N. However, because of the contrary influence of warming and nitrogen addition, no significant effects of WF treatment were made on NR activity of the two species.…”

Section: Discussion Effects Of Warming and Nitrogen Fertilization On mentioning

confidence: 73%

Effects of elevated temperature and nitrogen fertilization on nitrogen metabolism and nutrient status of two coniferous species

Zhao

Jin

et al. 2012

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

The effects of soil warming and nitrogen (N) fertilization on nitrogen metabolism and nutrient status of Picea asperata Mast. and Pinus tabulaformis Carr. seedlings were studied in this paper. Infrared heaters increased monthly average soil and air temperature by 2.6 and 2.1 C above the ambient, respectively. Ammonium nitrate (NH 4 NO 3 ) was added in an amount equivalent to an additional 25 g N m À2 a À1. Interestingly, soil warming, N fertilization, and their combination decreased foliar phosphorus (P) and magnesium (Mg) concentration of Picea asperata seedlings, but increased them in Pinus tabulaformis seedlings. Moreover, the combination of warming and N fertilization induced greater increments of amino acid, area-based N concentration and mass-based N concentration, manganese (Mn) and zinc (Zn), and further decreased P and calcium (Ca) concentration in Picea asperata seedlings. However, this phenomenon was not observed in Pinus tabulaformis seedlings. These results indicated that Picea asperata seedlings are more sensitive to the combination of warming and N fertilizer than Pinus tabulaformis seedlings.

show abstract

Section: Discussion Effects Of Warming and Nitrogen Fertilization On mentioning

confidence: 73%

Effects of elevated temperature and nitrogen fertilization on nitrogen metabolism and nutrient status of two coniferous species

Zhao

Jin

et al. 2012

Soil Science and Plant Nutrition

View full text Add to dashboard Cite

show abstract

“…This appears to be the best indicator of some (Jampeetong and Brix, 2009). The proline concentration in the leaves of co-inoculated plants was increased significantly with the salinity stress, compared to controlled plants.…”

Section: Chemical Compositionmentioning

confidence: 99%

Improving salinity tolerance of Acacia saligna (Labill.) plant by arbuscular mycorrhizal fungi and Rhizobium inoculation

Soliman¹,

Shanan²,

Massoud³

et al. 2012

Afr. J. Biotechnol.

View full text Add to dashboard Cite

This study was carried out to investigate the alleviation of salt stress (0, 6.25, 12.50 and 25 dS/m) on growth and development of Acacia saligna, grown in sandy loam sterile soil by using arbuscular mycorrhizal fungi (AMF) and Sinorhizobium terangae (R), individually or in combination (AMF+R). Growth and nodulation parameters, leaf osmotic adjustment and chemical analysis were used as parameters. Salt stress increases the percentage of sodium (Na) and calcium (Ca) contents as well as proline; meanwhile, it reduces the leaf osmotic potential, growth parameters, nodulation parameters, Nitrogen, phosphorus, potassium (N. P. K.) contents, total carbohydrates percentages and chlorophyll contents. Co-inoculated (AMF+R) stressed plants were able to maintain a higher osmotic potential of cells leading to the significantly rapid growth, enhanced nodulation parameters, N, P, K, Ca, total carbohydrates percentages and chlorophyll contents as well as proline in leaves, and significantly reduced the Na percentage. In conclusion, Co-inoculated (AMF+R) enabled the plants to maintain osmotic adjustments and enhanced the plants tolerance against salinity.

show abstract

“…Salvinia natans has a high growth rate on average with only ammonium and an intermediate growth rate when ammonia and nitrate are combined (Jampeetong and Brix, 2009). This study showed that total nitrogen in S. auriculata plant tissue was directly correlated with ammonia in the water column.…”

Section: Discussionmentioning

confidence: 99%

Water quality and communities associated with macrophytes in a shallow water-supply reservoir on an aquaculture farm

Sipaúba-Tavares¹,

Dias²

2014

Braz. J. Biol.

View full text Add to dashboard Cite

Plankton communities and macrofauna associated to aquatic macrophyte stands in a shallow water-supply reservoir (21°14'09"S; 48°18'38"W) on an aquaculture farm were compared to evaluate the relationship between organism densities and some abiotic features of the reservoir. Water and communities associated were sampled at two sites, one in an area with the predominance of Eichhornia azurea (Sw.) Kunth and the other with the predominance of Salvinia auriculata Aublet. Communities associated with macrophytes were sampled with floating quadrants (0.5 m 2 ); the macrophytes were washed and plankton and macrofauna were fixated with 4% formalin and 1% lugol iodine; the specimens were then identified and counted. Plankton and macrofauna communities associated with S. auriculata and E. azurea had a similar diversity of species but different (p<0.05) in the abundance of associated organisms. Eichhornia azurea had the highest contents in dry and wet weight, total phosphorus, total nitrogen and organic matter. Planktonic algae were directly correlated with biomass of E. azurea. The taxa with highest densities were Rotifera and Zygnematophyceae. Results showed that the environmental variables associated with macrophytes presence in the shallow reservoir is a strong predictor of favourable conditions to maintain great diversity plankton community and macrofauna associated with plants. The role of macrophytes is important for not only stabilising the clear-water state and maintaining high diversity of organisms associated, but also it seems to be a good alternative to maintaining desirable water-supply quality for aquaculture farms.Keywords: floating macrophytes, plankton, aquaculture, water-supply, macrofauna.Qualidade da água e comunidades associadas com macrófitas em um reservatório de abastecimento de água para uma fazenda de aquicultura ResumoEste estudo objetivou comparar a composição da comunidade planctônica e a macrofauna associada aos bancos de macrófitas aquáticas em um reservatório (21º14'09"S e 48º18'38"O) de abastecimento de água para um sistema de aquicultura, avaliando a relação entre a densidade dos organismos e alguns fatores abióticos da coluna d'água. As amostras de água e comunidades associadas foram coletadas em dois locais, um em área dominada por Eichhornia azurea (Sw.) Kunth e outro em área dominada por Salvinia auriculata Aublet. As comunidades associadas com as macrófitas foram amostradas utilizando o método do quadrante (0,5 m 2 ), posteriormente lavadas e fixadas com formalina a 4% e lugol a 1%; depois os indivíduos foram identificados e contados. A comunidade planctônica e macrofauna associadas à S. auriculata e E. azurea apresentaram similar diversidade de espécies e, diferiram (p<0,05) em abundância em relação aos organismos associados. Massa seca e fresca, matéria orgânica, fósforo total e nitrogênio total foram mais elevados no tecido vegetal de E. azurea do que em S. auriculata. As algas planctônicas foram correlacionadas diretamente com a biomassa de E. azurea. Os grupos que apresent...

show abstract

Nitrogen nutrition of Salvinia natans: Effects of inorganic nitrogen form on growth, morphology, nitrate reductase activity and uptake kinetics of ammonium and nitrate

Cited by 81 publications

References 30 publications

Effects of elevated temperature and nitrogen fertilization on nitrogen metabolism and nutrient status of two coniferous species

Effects of elevated temperature and nitrogen fertilization on nitrogen metabolism and nutrient status of two coniferous species

Improving salinity tolerance of Acacia saligna (Labill.) plant by arbuscular mycorrhizal fungi and Rhizobium inoculation

Water quality and communities associated with macrophytes in a shallow water-supply reservoir on an aquaculture farm

Contact Info

Product

Resources

About