Pesticides dans l'eau

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      originalId => protected33214 (integer)
      authors => protected'Thomas, P. K.; Arn, F. J.; Freiermuth, M.; Narwani,
          A.' (84 chars)
      title => protected'<em>Botryococcus braunii</em> reduces algal grazing losses to <em>Daphnia </
         em>and <em>Poterioochromonas </em>through both chemical and physical interfe
         rence' (157 chars)
      journal => protected'Journal of Applied Phycology' (28 chars)
      year => protected2024 (integer)
      volume => protected36 (integer)
      issue => protected'' (0 chars)
      startpage => protected'3221' (4 chars)
      otherpage => protected'3230' (4 chars)
      categories => protected'chemical ecology; pest management; synthetic ecology; algal bioproducts; alg
         ae milking; alleopathy' (98 chars)
      description => protected'Crop protection from algal grazers is a key area of concern, as grazing zoop
         lankton and flagellates can decimate microalgae crops and impede economic vi
         ability of cultivation for biofuels and bioproducts. Inhibition of grazing b
         y chemical and physical interference is one promising solution; however, the
         re have been few empirical tests of this approach that use defense traits in
         nate to algal crop species. <em>Botryococcus braunii</em> is of particular i
         nterest because a) it excretes high levels of hydrocarbons and exopolysaccha
         rides and b) forms colonies and possesses chemical defenses. Here we conduct
          a controlled laboratory experiment to test whether <em>B. braunii</em> can 
         mitigate losses to grazing by two distinct grazers, <em>Daphnia magna</em> a
         nd <em>Poterioochromonas malhamensis</em>, due to both chemical inhibition a
         nd physical interference linked to large/inedible colonies. We show that che
         mical and physical defenses interactively reduce the total effect of grazing
         , thus significantly increasing the biomass and growth rates of cultures of 
         <em>B. braunii</em> and <em>Nannochloropsis limnetica</em> when either graze
         r is present. We also find that <em>B. braunii</em> medium enhances the grow
         th of <em>N. limnetica</em>. Our study demonstrates how community engineerin
         g can identify synergies arising from algal co-cultivation (e.g., by using i
         ndustrially relevant strains for crop protection). While our lab study serve
         s as a proof-of-concept, future research should test this strategy at pilot 
         scale; if successful, such ecological discoveries may help to reduce the cos
         ts of large-scale deployment of algal cultivation for sustainable foods, fue
         ls, bioproducts (e.g., bioplastics), and carbon capture.' (1728 chars)
      serialnumber => protected'0921-8971' (9 chars)
      doi => protected'10.1007/s10811-024-03330-x' (26 chars)
      uid => protected33214 (integer)
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      _languageUid => protectedNULL
      _versionedUid => protected33214 (integer)modified
      pid => protected124 (integer)