Negative effects of Phaeocystis globosa on microalgae

[No Value] Liu Jiesheng, Marion Van Rijssel, [No Value] Yang Weidong, [No Value] Peng Xichun, [No Value] Lue Songhui, [No Value] Wang Yan, [No Value] Chen Jufang, [No Value] Wang Zhaohui, [No Value] Qi Yuzao

    Research output: Contribution to journalArticleAcademicpeer-review

    12 Citations (Scopus)

    Abstract

    The potential allelopathic effects of the microalga, Phaeocystis globosa Scherffel, on three harmful bloom algae, Prorocentrum donghaiense Lu, Chattonella marina (Subrahmanyan) Hara et Chihara and Chattonella ovata Hara et Chihara were studied. The growth of C. marina and C. ovata was markedly reduced when the organisms were co-cultured with P. globosa or cultured in cell-free spent medium. Haemolytic extracts from P. globosa cells in the senescence phase had a similar inhibitory effect on the three harmful bloom algae. However, P. globosa had less influence on the brine shrimp, Artemia salina. These results indicate that P. globosa may have an allelopathic effect on microalgae, which would explain the superior competitive abilities of P. globosa. Because the addition of the haemolytic toxins from P. globosa had similar effects on algae as spent media, these compounds may be involved in the allelopathic action of P. globosa.

    Original languageEnglish
    Pages (from-to)911-916
    Number of pages6
    JournalChinese journal of oceanology and limnology
    Volume28
    Issue number4
    DOIs
    Publication statusPublished - Jul-2010

    Keywords

    • Phaeocystis globosa
    • allelopathy
    • haemolytic toxin
    • COASTAL WATERS
    • POUCHETII
    • ALLELOPATHY
    • ECOLOGY
    • BLOOMS
    • SEA

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