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DC Field | Value | Language |
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dc.contributor.author | Piyanart Saunkaew | en_US |
dc.contributor.author | Prasit Wangpakapattanawong | en_US |
dc.contributor.author | Arunothai Jampeetong | en_US |
dc.date.accessioned | 2018-09-04T04:21:38Z | - |
dc.date.available | 2018-09-04T04:21:38Z | - |
dc.date.issued | 2011-11-01 | en_US |
dc.identifier.issn | 15733017 | en_US |
dc.identifier.issn | 09639292 | en_US |
dc.identifier.other | 2-s2.0-80054883212 | en_US |
dc.identifier.other | 10.1007/s10646-011-0744-8 | en_US |
dc.identifier.uri | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=80054883212&origin=inward | en_US |
dc.identifier.uri | http://cmuir.cmu.ac.th/jspui/handle/6653943832/50001 | - |
dc.description.abstract | The effects of high NH4+concentration on growth, morphology, NH4+uptake and nutrient allocation of Myriophyllum brasiliense were investigated in hydroponic culture. The plants were grown under greenhouse conditions for 4 weeks using four levels of NH4+concentration: 1, 5, 10 and 15 mM. M. brasiliense grew well with a relative growth rate of c.0.03 day-1at NH4+concentration up to 5 mM. At the higher NH4+concentrations the growth of the plants was stunted and the plants had short roots and few new buds, especially when grown in 15 mM NH4+where the submerged leaves were lost and there were rotten roots and submerged stems. To avoid NH4+toxicity, the plants may have a mechanism to prevent cytoplasmic NH4+accumulation in plant cells. The net uptake of NH4+significantly decreased and the total N significantly increased in the plants treated with 10 and 15 mM NH4+, respectively. The plant may employ NH4+assimilation and extrusion as a mechanism to compensate for the high NH4+concentrations. However, the plants may show nutrient deficiency symptoms, especially K deficiency symptoms, after they were exposed to NH4+concentration higher than 10 mM. The present study provides a basic ecophysiology of M. brasiliense that it can grow in NH4+enriched water up to concentrations as high as 5 mM. © 2011 Springer Science+Business Media, LLC. | en_US |
dc.subject | Environmental Science | en_US |
dc.subject | Pharmacology, Toxicology and Pharmaceutics | en_US |
dc.title | Growth, morphology, ammonium uptake and nutrient allocation of Myriophyllum brasiliense Cambess. under high NH<inf>4</inf><sup>+</sup>concentrations | en_US |
dc.type | Journal | en_US |
article.title.sourcetitle | Ecotoxicology | en_US |
article.volume | 20 | en_US |
article.stream.affiliations | Chiang Mai University | en_US |
Appears in Collections: | CMUL: Journal Articles |
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