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Many marine protists are not culturable and therefore challenging to study, nonetheless, they are essential in all marine ecosystems. The development of single-cell techniques is allowing for more marine protists to be studied. Such genomic approaches aim to help to disentangle heterotrophic processes such as phagotrophy from osmotrophy and phototrophic-induced anabolic activities. This information will then support cellular and metabolic modeling by better elucidating the physiological mechanisms and quantifying their importance in different scenarios. However, single-cell protocols and low input RNA kits for transcriptomics are usually made for and tested with mammalian cells, as such the feasibility and efficiency of single-cell transcriptomics on highly diverse mixotrophic protists are not always known. Often single-cell transcriptomics of microbial eukaryotes shows low transcript recovery rates and large variability. We report on transcriptomic methods that we have successfully performed on single cells of Acantharia, Strombidium cf basimorphum, and Prymnesium parvum. This first protocol outlines the total RNA extraction step utilizing the . |
