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Effects of three macroalgae, Ulva linza (Chlorophyta), Corallina pilulifera (Rhodophyta) and Sargassum thunbergii (Phaeophyta) on the growth of the red tide microalga Prorocentrum donghaiense under laboratory conditions
Wang, R.; Xiao, H.; Wang, Y.; Zhou, W.; Tang, X. (2007). Effects of three macroalgae, Ulva linza (Chlorophyta), Corallina pilulifera (Rhodophyta) and Sargassum thunbergii (Phaeophyta) on the growth of the red tide microalga Prorocentrum donghaiense under laboratory conditions. J. Sea Res. 58(3): 189-197. http://dx.doi.org/10.1016/j.seares.2007.03.002
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    Algae
    Biological competition > Plant competition > Plant interaction > Allelopathy
    Cell constituents > Chromosomes > Genes > Allelles
    Controlled conditions
    Extracts
    Population functions > Growth
    Red tides
    Corallina pilulifera Postels & Ruprecht, 1840 [WoRMS]; Prorocentrum donghaiense D.Lu, 2001 [WoRMS]; [WoRMS]; Ulva linza Linnaeus, 1753 [WoRMS]
    Marien/Kust
Author keywords
    allelopathy; macroalgae; red tide microalgae; microcosm experiments;extracts
Auteurs  Top 
  • Wang, R.
  • Xiao, H.
  • Wang, Y.
  • Zhou, W.
  • Tang, X., correspondent
Abstract
    Allelopathic effects of several concentrations of fresh tissue and dry powder of three macroalgae, Ulva linza, Corallina pilulifera and Sargassum thunbergii, on the red tide microalga Prorocentrum donghaiense were evaluated in microcosms. Preliminary studies on the algicidal effects of one aqueous and four organic solvent extracts from the macroalgae on the microalga were carried out to confirm the existence of allelochemicals in the tissues of the macroalgae. The effects of macroalgal culture medium filtrate on P. donghaiense were investigated using initial or semi-continuous filtrate addition. Furthermore, the potential effects of the microalga on these three macroalgae were also tested. The results of the microcosm assay showed that the growth of P. donghaiense was strongly inhibited by using fresh tissues and dry powder of the three macroalgae. Both aqueous and methanol extracts of the macroalgae had strong growth inhibitory effects on P. donghaiense, while the other three organic solvent extracts (acetone, ether and chloroform) had no apparent effect on its growth; this suggested that the allelochemicals from these three macroalga had relatively high polarities. The three macroalgal culture medium filtrates exhibited apparent growth inhibitory effect on the microalgae under initial or semi-continuous addition, which suggested that the cells of P. donghaiense are sensitive to the allelochemicals. In contrast, P. donghaiense had no apparent effect on the growth of the macroalgae in coexistence experiment.
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