While algal phago-mixotrophs play a major role in aquatic microbial food webs, their diversity remains poorly understood. Recent studies have indicated several species of prasinophytes, early diverging green algae, to be able consume bacteria for nutrition. To further explore the occurrence phago-mixotrophy we conducted feeding experiments with live fluorescently labeled stained CellTracker Green CMFDA, heat-killed 5-(4,6-dichlorotriazin-2-yl) aminofluorescein (DTAF), and magnetic beads....

Biogeographical classifications of the global ocean generalize spatiotemporal trends in species or biomass distributions across discrete biomes provinces. These are generally based on a combination remote-sensed proxies phytoplankton and climatologies biogeochemical physical parameters. However, these approaches limited their capacity to account for subsurface variability The deployment autonomous profiling floats Biogeochemical Argo network over last decade has greatly increased coverage...

Abstract. Oligotrophic regions play a central role in global biogeochemical cycles, with microbial communities these areas representing an important term carbon budgets. While the general structure of has been well documented ocean, some remote such as western tropical South Pacific (WTSP) remain fundamentally unexplored. Moreover, biotic and abiotic factors constraining abundances distribution not resolved. In this study, we quantified spatial (vertical horizontal) major plankton groups...

Abstract Constitutive mixoplankton—plastid–bearing microbial eukaryotes capable of both phototrophy and phagotrophy—are ubiquitous in marine ecosystems facilitate carbon transfer to higher trophic levels within aquatic food webs, which supports enhanced sinking flux. However, the regulation relative contribution photosynthesis prey consumption remains poorly characterized. We investigated transcriptional dynamics behind this phenotypic plasticity prasinophyte green alga Pterosperma...

Marine phytoplankton play a central role in global biogeochemical cycling, carbon export, and the overall functioning of marine ecosystems. While chlorophyll (Chl ) is widely used as proxy for biomass, identifying proportion Chl attributable to different groups remains major challenge oceanography, especially picophytoplankton that often represent majority biomass open ocean. We describe method measuring per-cell field samples using fluorescence-activated cell sorting followed by...

Abstract. Accounting for 40 percent of the earth's surface, oligotrophic regions play an important role in global biogeochemical cycles, with microbial communities these areas representing term carbon budgets. While general structure has been well documented ocean, some remote such as Western Tropical South Pacific (WTSP), remain fundamentally unexplored. Moreover, biotic and abiotic factors constraining abundances distribution not-well resolved. In this study, we quantified spatial...

Climate change caused predominately by carbon dioxide (CO2) from fossil fuel use is a critical issue for our future. It incumbent on science educators to learn about it and teach in ways that illustrate the power of understand climatic changes model past, present, possible climate futures. equally important address alternative explanations do not cause present warming. We provide sufficient background effects atmospheric CO2 climate, how we know past values both temperature, mathematical...

Lichens are widely recognized as important examples of a fungal-algal or fungal-cyanophyte symbiosis; and in some cases they major food source for animal grazers such caribou ( Rangifer tarandus ), especially the Arctic during winter. However, relatively little is known about ecology their co-associated bacterial protistan communities. This one first reports an analysis microbial communities associated with rock-dwelling foliose lichens Flavoparmelia sp.), including more detailed segments...

Our climate is changing due to anthropogenic emissions of greenhouse gases from the production and use fossil fuels. Present atmospheric levels CO2 were last seen 3 million years ago, when planetary temperature sustained high Arctic camels. As scientists educators, we should feel a professional responsibility discuss major scientific issues like change, its profound consequences for humanity, with students who look up us knowledge leadership, will be most affected in future. We offer simple...

As scientists and educators, we have a professional responsibility to discuss major contemporary scientific issues such as climate change, its profound consequences for humanity with our students. They will be significantly affected by they look us knowledge leadership. We propose that biochemistry molecular biology educators routinely incorporate change into their classes labs using complementary examples from the literature support traditional curriculum classroom. Examples presented in...