Project description:In this experiment, we used four diets, one based on FM, a challenging diet with 40% soybean meal (SBM), and two diets containing 40% SBM with 5% of Cyberlindnera jadinii yeast exposed to different down-stream processing conditions (heat-inactivated or autolysation). The immunomodulatory effects of the diets were analyzed in the spleen of Atlantic salmon after 37 days of feeding. The results showed that the inclusion of autolysed C. jadinii (ACJ) was able to modulate the response of Atlantic salmon compared to fish fed the SBM-diet, through the activation of biological pathways related to endocytosis, PPRs-signal transduction and transporter activity. Finally, we suggest that the spleen is a good candidate to characterize the immunomodulatory effects of functional ingredients in Atlantic salmon.
Project description:Strand-specific RNA-seq libraries were constructed for two samples, including (I) wild-type strain NBRC0988 grown in YEP medium containing 2% w/v glucose;(II) wild-type strain NBRC0988 grown in YEP medium containing 2% w/v xylose. For preparation of RNA samples, NBRC0988 cells grown overnight were inoculated into 100 ml liquid Yeast Extract Peptone Dextrose (YEPD) medium with the initial inoculation amount of OD600= 0.1, and cultured for 15 hours at 30℃ and 250 rpm. The cells were collected by centrifugation at 6,000g for 5 minutes. After washing twice with phosphate buffer saline (PBS), they were inoculated into new 100 mL YEP medium containing 2% w/v glucose or xylose.After flask culturing at 30°C and 250 rpm for an additional 5 hours, the yeast cells were collected by centrifugation for total RNA isolation and Illumina RNA-seq library construction. Total RNA for samples were isolated using TRIzol reagent (Invitrogen, Grand Island, USA), then used for high-throughput RNA sequencing. The 150-nt paired-end strand-specific RNA-seq libraries (SS_lib_type RF) were generated commercially at Novogene Biotechnology Co. Ltd (Tianjin, China) by using Illumina’s novaseq 6000 platform (Illumina, San Diego, USA).
