Notable predominant morphology of the smallest most abundant protozoa of the open ocean revealed by electron microscopy.
Notable predominant morphology of the smallest most abundant protozoa of the open ocean revealed by electron microscopy.
复制标题
电子显微镜显示的开阔海洋中最小最丰富的原生动物的显著的主要形态。
DOI:
10.1093/plankt/fbac031
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发表时间:
2022-07
影响因子:
2.1
通讯作者:
中科院分区:
文献类型:
--
作者:
In the microbe-driven ecosystems of the open ocean, the small heterotrophic flagellates (sHF) are the chief microbial predators and recyclers of essential nutrients to phototrophic microbes. Even with intensive molecular phylogenetic studies of the sHF, the origins of their feeding success remain obscure because of limited understanding of their morphological adaptations to feeding. Here, we examined the sHF morphologies in the largest, most oligotrophic South Pacific and Atlantic (sub)tropical gyres and adjacent mesotrophic waters. On four research cruises, the sHF cells were flow cytometrically sorted from bacterioplankton and phytoplankton for electron microscopy. The sorted sHF comprised chiefly heterokont (HK) biflagellates and unikont choanoflagellates numerically at around 10-to-1 ratio. Of the four differentiated morphological types of HK omnipresent in the open ocean, the short-tinsel heterokont (stHK), whose tinsel flagellum is too short to propagate a complete wave, is predominant and a likely candidate to be the most abundant predator on Earth. Modeling shows that the described stHK propulsion is effective in feeding on bacterioplankton cells at low concentrations; however, owing to general prey scarcity in the oligotrophic ocean, selective feeding is unsustainable and omnivory is equally obligatory for the seven examined sHF types irrespective of their mode of propulsion.
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影响因子:
4.4
作者:
CARON, DA
通讯作者:
CARON, DA
影响因子:
16.6
作者:
Seeleuthner Y;Mondy S;Lombard V;Carradec Q;Pelletier E;Wessner M;Leconte J;Mangot JF;Poulain J;Labadie K;Logares R;Sunagawa S;de Berardinis V;Salanoubat M;Dimier C;Kandels-Lewis S;Picheral M;Searson S;Tara Oceans Coordinators;Pesant S;Poulton N;Stepanauskas R;Bork P;Bowler C;Hingamp P;Sullivan MB;Iudicone D;Massana R;Aury JM;Henrissat B;Karsenti E;Jaillon O;Sieracki M;de Vargas C;Wincker P
通讯作者:
Wincker P
DOI:
10.1111/jeu.12691
发表时间:
2019-01
期刊:
The Journal of eukaryotic microbiology
影响因子:
--
作者:
Adl SM;Bass D;Lane CE;Lukeš J;Schoch CL;Smirnov A;Agatha S;Berney C;Brown MW;Burki F;Cárdenas P;Čepička I;Chistyakova L;Del Campo J;Dunthorn M;Edvardsen B;Eglit Y;Guillou L;Hampl V;Heiss AA;Hoppenrath M;James TY;Karnkowska A;Karpov S;Kim E;Kolisko M;Kudryavtsev A;Lahr DJG;Lara E;Le Gall L;Lynn DH;Mann DG;Massana R;Mitchell EAD;Morrow C;Park JS;Pawlowski JW;Powell MJ;Richter DJ;Rueckert S;Shadwick L;Shimano S;Spiegel FW;Torruella G;Youssef N;Zlatogursky V;Zhang Q
通讯作者:
Zhang Q
影响因子:
3.6
作者:
CYNAR, FJ;ESTEP, KW;SIEBURTH, JM
通讯作者:
SIEBURTH, JM
影响因子:
2.5
作者:
FENCHEL, T
通讯作者:
FENCHEL, T