Project description:L. edodes strain w1 was cultured at 25°C in MYG medium (containing 1% malt extract, 0.1% peptone, 0.1% yeast extract, and 2% glucose). Fresh mycelium blocks were cultured in a 9cm petri dish containing MYG medium. After 8-day dark cul- ture, and they were divided into different treatment groups (group A,B,C,D,E). Group A was treated with 8mm-diameter L. edodes mycelium block on MYG medium for seven days and then treated at 37 °C for 30 min. 3. Group B was treated with 8mm-diameter L. edodes mycelium block on MYG medium for seven days and then treated at 4 °C for 60 min. Group C was treated with 8mm-diameter L. edodes mycelium block on MYG medium for seven days and then under 3500 lx light for 1 h. In group D, 8mm-diameter fresh L. edodes mycelium block were inoculated into MYG medium containing cadmium ions. In group E, 8mm-diameter L. edodes mycelium block was inoculated at 10 mm from the edge of the petri dish, and cultured at 25 ° C for 7 days. Afterwards, an activated 8-mm diameter tricho- derma mycelium block was inoculated at 1 cm from the edge of the petri dish at one end of the petri dish diameter (corresponding to the other end where L. edodes mycelium block was inoculated)
2024-11-25 | GSE219161 | GEO
Project description:Transcriptome analysis comparing different euthanasia methods and tissue storage condition in pigs
| PRJNA992446 | ENA
Project description:Transcriptome sequencing of lentinus edodes treated with different concentrations of hydrated lime
| PRJNA979791 | ENA
Project description:ITS for Chuxiong Lentinus Edodes
Project description:Gene expression profiles at different development stages and different growth medium of Lentinula edodes (L54) are comparied. Keywords: time-course
Project description:We used quantitative RNA expression profiling on the Affymetrix U133 human expression array to validate quantitative expression results obtained with the tissue preservative RNALater against snap frozen and fresh tissues as a means of routine tissue collection and temporary storage. By using split samples from a homogenous tissue (uterine myometrium), and including duplicates within each processing group compared, we were able to undertake a formal ANOVA analysis comparing the magnitude of result variation contributed by sample source (different patients), processing protocol (fresh vs. frozen vs. 24 or 72 hours RNALater), and random background (duplicates). The dataset was randomly permuted to define a baseline pattern of test statistic values against which the observed results could be interpreted. Ambient storage of tissues for 24 or 72 hours in RNALater did not contribute any systematic shift in quantitative RNA expression results relative to the alternatives of fresh or frozen tissue. Keywords: parallel sample
Project description:Cryopreservation is a key method for long-term storage of biological specimens. The development of optimal cryopreservation condition will reduce the damage from the storage as least as possible. The effect of the cryopreservation condition we used on peripheral blood mononuclear cells (PBMCs) has been previously evaluated with microarray analysis. The emerging single-cell RNA sequencing (scRNA-seq) technology enable deeper exploring cellular heterogeneity and function. In the current study, we further optimized the cryopreservation procedure using FACS analysis, and the method were further evaluated by ScRNA-Seq for two different length of storage time: six months and 12 months in comparison to fresh cells. We identified major immune cell types from both fresh and recovered cryopreserved PBMCs, including monocytes, dendritic cells (DCs), natural Killer (NK) cells, CD4+ T cells, CD8+ T cells, and B cells. The cell viability of all identified immune cell types was relatively stable during the initial 6-month of cryopreservation, while showed10 ~ 40 % decline after cryopreserved for 12 months for different cell types. Furthermore, transcriptome profile of cryopreserved samples did not show obvious perturbation during whole 12 months testing time, although a few key genes involved in stress response or apoptosis, exhibited significant change, especially in monocytes, DC and NK cells. Our results validate that the optimized cryopreservation is a reliable procedure for maintaining these major immune cell types in PBMCs, also highlight the importance of careful assessment of individual sample as variation could be introduced by cryopreservation.