Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales

Growth, morphology, NH4+ uptake and mineral allocation in Salvinia cucullata Roxb. ex Bory grown with different amounts of NH4+ were investigated. Plants of uniform size were grown on full strength Smart and Barko medium with different NH4+ concentrations (0.5, 1, 5, 10 and 15 mM) and incubated in a...

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Main Authors: Jampeetong A., Brix H., Kantawanichkul S.
Format: Article
Language:English
Published: 2014
Online Access:http://www.scopus.com/inward/record.url?eid=2-s2.0-83655183662&partnerID=40&md5=7b8f8308668d30f71acb1514a5a4dd00
http://cmuir.cmu.ac.th/handle/6653943832/5998
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Institution: Chiang Mai University
Language: English
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spelling th-cmuir.6653943832-59982014-08-30T03:23:43Z Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales Jampeetong A. Brix H. Kantawanichkul S. Growth, morphology, NH4+ uptake and mineral allocation in Salvinia cucullata Roxb. ex Bory grown with different amounts of NH4+ were investigated. Plants of uniform size were grown on full strength Smart and Barko medium with different NH4+ concentrations (0.5, 1, 5, 10 and 15 mM) and incubated in a greenhouse for four weeks. Salvinia cucullata grew well in the medium with 0.5-1 mM NH4+ with a relative growth rate of 0.11-0.12 d-1 without exhibiting NH4+ toxicity symptoms. With an NH4+ concentration above 5 mM, plant growth was suppressed and signs of NH4+ toxicity were observed. NH4+ toxicity symptoms were obvious in plants supplied with 10 mM and 15 mM NH4+. These plants had low growth rates, short roots, low numbers of roots and showed chlorosis. Rotted roots and stems were also found in plants fed with 15 mM NH4+. This species had a high uptake rate even though the NH4+ concentrations increased, making it an ideal candidate for growth in eutrophic environments. The high NH4+ concentration had a negative effect on K uptake resulting in low K concentration in the plant tissue, but the plants increased N content in plant tissue. Thus, harvested plants can be used as soil fertilizer or for animal feed. Furthermore, maintaining plant biomass can improve the efficiency of water treatment. © 2011 Elsevier Inc. All rights reserved. 2014-08-30T03:23:43Z 2014-08-30T03:23:43Z Article in Press 1476513 10.1016/j.ecoenv.2011.12.003 EESAD http://www.scopus.com/inward/record.url?eid=2-s2.0-83655183662&partnerID=40&md5=7b8f8308668d30f71acb1514a5a4dd00 http://cmuir.cmu.ac.th/handle/6653943832/5998 English
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
language English
description Growth, morphology, NH4+ uptake and mineral allocation in Salvinia cucullata Roxb. ex Bory grown with different amounts of NH4+ were investigated. Plants of uniform size were grown on full strength Smart and Barko medium with different NH4+ concentrations (0.5, 1, 5, 10 and 15 mM) and incubated in a greenhouse for four weeks. Salvinia cucullata grew well in the medium with 0.5-1 mM NH4+ with a relative growth rate of 0.11-0.12 d-1 without exhibiting NH4+ toxicity symptoms. With an NH4+ concentration above 5 mM, plant growth was suppressed and signs of NH4+ toxicity were observed. NH4+ toxicity symptoms were obvious in plants supplied with 10 mM and 15 mM NH4+. These plants had low growth rates, short roots, low numbers of roots and showed chlorosis. Rotted roots and stems were also found in plants fed with 15 mM NH4+. This species had a high uptake rate even though the NH4+ concentrations increased, making it an ideal candidate for growth in eutrophic environments. The high NH4+ concentration had a negative effect on K uptake resulting in low K concentration in the plant tissue, but the plants increased N content in plant tissue. Thus, harvested plants can be used as soil fertilizer or for animal feed. Furthermore, maintaining plant biomass can improve the efficiency of water treatment. © 2011 Elsevier Inc. All rights reserved.
format Article
author Jampeetong A.
Brix H.
Kantawanichkul S.
spellingShingle Jampeetong A.
Brix H.
Kantawanichkul S.
Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
author_facet Jampeetong A.
Brix H.
Kantawanichkul S.
author_sort Jampeetong A.
title Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
title_short Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
title_full Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
title_fullStr Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
title_full_unstemmed Response of Salvinia cucullata to high NH4+ concentrations at laboratory scales
title_sort response of salvinia cucullata to high nh4+ concentrations at laboratory scales
publishDate 2014
url http://www.scopus.com/inward/record.url?eid=2-s2.0-83655183662&partnerID=40&md5=7b8f8308668d30f71acb1514a5a4dd00
http://cmuir.cmu.ac.th/handle/6653943832/5998
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