海洋浮游生物学_3.Dinoflagellate(23-59).ppt

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1、Pfiesteriapiscicidazoosporesshownswarmingaround(shortarrows),penetrating,andconsuming(longarrows)aliveeasternoysterlarva.(J.Burkholder)Nature481:967-970(2002）MyzocytosisbyPfiesteriashumwayaeontheepidermisoflarvalCyprinodonvariegatus.---a.Scanningelectronmicrograph(SEM)o

2、fearlyepidermalerosion(<5min)withnumerousattacheddinospores(arrows).---b.SEMofsingledinospore(D)attachedtoandfeedingondamagedepidermalcell(E).Notethedistalendofpeduncle(P)exhibitingfilopodialprojections(F).---c.Transmissionelectronmicrograph(TEM)ofdinospore(D)attachment

3、(arrow)andfeedingonepidermalcells.Notetheepidermalcytoplasmandorganelleswithinthedinosporepeduncle(P),andthecytoplasmicrarefactionandnucleardegenerationofaffectedcells(arrowheads).Inset,TEMofdistalportionofanunattachedpeduncleshowingfilopodialextensionsandrod-shapedelec

4、tron-densegranules(G).Scalebars:a,c,10mm;b,5mm;inset,1mm.Nature481:967-970(2002）