Characterization of a humic acid extracted from marine sediment and its influence on the growth of marine diatoms
| العنوان: | Characterization of a humic acid extracted from marine sediment and its influence on the growth of marine diatoms |
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| المؤلفون: | Daniel O. Mártire, Marcela V. Martin, Christina Gebühr, Karen Helen Wiltshire |
| المصدر: | Journal of the Marine Biological Association of the United Kingdom. 94:895-906 |
| بيانات النشر: | Cambridge University Press (CUP), 2014. |
| سنة النشر: | 2014 |
| مصطلحات موضوعية: | 0106 biological sciences, Paralia sulcata, growth experiments, 010501 environmental sciences, Aquatic Science, 01 natural sciences, Helgoland Roads, chemistry.chemical_compound, Nutrient, Algae, Humic acid, Fucoxanthin, 14. Life underwater, 0105 earth and related environmental sciences, chemistry.chemical_classification, biology, humic substances, marine diatoms, Ecology, 010604 marine biology & hydrobiology, Marine habitats, Diadinoxanthin, Sediment, biology.organism_classification, chemistry, Benthic zone, Environmental chemistry, North Sea |
| الوصف: | Due to the input of humic substances from freshwater run-off into the marine habitat, the influences of such substances on marine organisms should not be neglected. We here investigate the effect of a humic acid (HA) extract from the North Sea,characterized by spectroscopic techniques and carboxylic and phenolic group content, on the growth of different algae. Two benthic pennate diatoms isolated from the Baltic Sea, Navicula ramosissima (C. Agardh) Cleve, 1895 and Entomoneis paludosa (W. Smith) Reimer, 1975, as well as two tychopelagic centric diatoms isolated from the North Sea, Melosira nummuloides C. Agardh, 1824 and Paralia sulcata (Ehrenberg) Cleve, 1873, were employed. The concentrations of pigments (fucoxanthin, diadinoxanthin, chlorophyll-a and b-carotene) and nutrients were also measured. Adding low concentrations of naturally humic substances (5.5 mg of C l21) to the algae cultures resulted in enhanced growth rates compared to the control experiments, possibly due to the increase in the bioavailability of trace metals or other nutrients. Fil: Martin, Marcela Vanessa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Gebühr, Christina. Goethe Universitat Frankfurt; Alemania Fil: Martire, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina Fil: Wilshire, Karen. Alfred Wegener Institute for Polar and Marine Research; Alemania |
| وصف الملف: | application/pdf |
| تدمد: | 1469-7769 0025-3154 |
| DOI: | 10.1017/s0025315414000368 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd4c7756613a70efb9482642f0aede43 https://doi.org/10.1017/s0025315414000368 |
| Rights: | RESTRICTED |
| رقم الانضمام: | edsair.doi.dedup.....fd4c7756613a70efb9482642f0aede43 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14697769 00253154 |
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| DOI: | 10.1017/s0025315414000368 |