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@ARTICLE{Stirk:868042,
      author       = {Stirk, Wendy A. and Reinecke-Levi, Diana and van Staden,
                      Johannes},
      title        = {{S}easonal variation in antifungal, antibacterial and
                      acetylcholinesterase activity in seven {S}outh {A}frican
                      seaweeds},
      journal      = {Journal of applied phycology},
      volume       = {19},
      number       = {3},
      issn         = {1573-5176},
      address      = {Dordrecht [u.a.]},
      publisher    = {Springer Science + Business Media B.V},
      reportid     = {FZJ-2019-06635},
      pages        = {271 - 276},
      year         = {2007},
      abstract     = {Seven seaweeds were collected from the intertidal zone at
                      Rocky Bay on the east coast of South Africa. The species
                      were Caulerpa racemosa var. laetevirens, Codium capitatum,
                      Halimeda cuneata, Ulva fasciata, Amphiroa bowerbankii,
                      Amphiroa ephedraea and Dictyota humifusa. Six bimonthly
                      collections were made within a few days of the new moon to
                      correspond with spring tide. Methanol extracts were tested
                      for antifungal, antibacterial and acetylcholinesterase
                      (AChE) inhibitory activity. No seasonal variation was
                      observed in antifungal activity, with D. humifusa extracts
                      being the most active. The seaweed extracts inhibited the
                      growth of the Gram-positive bacteria, with Bacillus subtilis
                      being more susceptible than Staphylococcus aureus. Dictyota
                      humifusa was the only seaweed able to inhibit the
                      Gram-negative Escherichia coli. Seasonal variation in
                      antibacterial activity was observed, with the extracts
                      generally having no activity in summer and having
                      antibacterial activity in late winter (July collection) and
                      early spring (September and November collections). Dictyota
                      humifusa was the most effective seaweed species, having
                      antibacterial activity throughout the year. All the extracts
                      tested had AChE inhibitory activity, with no seasonal
                      variation in the levels of activity. Dictyota humifusa
                      extracts were the most effective at inhibiting AChE
                      activity.},
      cin          = {IBG-2},
      ddc          = {570},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {582 - Plant Science (POF3-582)},
      pid          = {G:(DE-HGF)POF3-582},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000246407100010},
      doi          = {10.1007/s10811-006-9134-7},
      url          = {https://juser.fz-juelich.de/record/868042},
}