16S rRNA and transcriptome analysis revealed the regulatory mechanism of Romboutsia lituseburensis on serum immunoglobulin levels in geese.

Romboutsia is a dominant genus in the goose intestine. Recent studies have suggested that Romboutsia lituseburensis might regulate serum immunoglobulin levels in female geese, although the underlying mechanisms remain unclear. In this study, we administered Romboutsia lituseburensis (R.

Expression profiles of NOD1 and NOD2 and pathological changes in gills during Flavobacterium columnare infection in yellow catfish, Tachysurus fulvidraco.

NOD-like receptors are significant contributors to the immune response of fish against different types of pathogen invasion. NOD1 and NOD2 genes of yellow catfish (Tachysurus fulvidraco) were identified and characterized in this study. Yellow catfish NOD1 and NOD2 have open reading frames (ORFs) of 2841 and 2949 bp, encoding 946 and 982 amino acids, respectively.

A comparative study on the immune response in the head and trunk kidney of yellow catfish infected with Edwardsiella ictaluri.

The teleost kidneys are anatomically divided into head kidney and trunk kidney, each performing distinct physiological functions. Although previous research has elucidated the role of the head kidney in immune responses, there is a paucity of literature on the comparative studies of the head and trunk kidney response to bacterial infection. Therefore, an Edwardsiella ictaluri infection model of yellow catfish was constructed to investigate and compare the immune responses between the two kidney types.

Schlank orchestrates insect developmental transition by switching H3K27 acetylation to trimethylation in the prothoracic gland.

Insect developmental transitions are precisely coordinated by ecdysone and juvenile hormone (JH). We previously revealed that accumulated H3K27 trimethylation (H3K27me3) at the locus encoding JH signal transducer Hairy is involved in the larval-pupal transition in insects, but the underlying mechanism remains to be fully defined. Here, we show in and that Rpd3-mediated H3K27 deacetylation in the prothoracic gland during the last larval instar promotes ecdysone biosynthesis and the larval-pupal transition by enabling H3K27me3 accumulation at the locus to induce its transcriptional repression.

[Exploration of cross-cultivar group characteristics of a new cultivar of 'Zhizhang Guhong Chongcui'].

'Zhizhang Guhong Chongcui' is a new cultivar of with cross-cultivar group characteristics. It has typical characteristics of cinnabar purple cultivar group and green calyx cultivar group. It has green calyx, white flower, and light purple xylem, but the mechanism remains unclear.

Bioinformatics characteristics and expression analysis of TLR3 and its adaptor protein TRIF in largemouth bass (Micropterus salmoides) upon Flavobacterium columnare infection.

TLR3 and TRIF (adaptor protein for TLR3) are vital to the MyD88-independent pathway mediated by Toll-like receptors (TLRs). In order to identify the role of TLR3 and TRIF in Micropterus salmoides, the Ms_TLR3 and Ms_TRIF (Ms: abbreviation for M. salmoides) were cloned and characterized in this study.

Wds-Mediated H3K4me3 Modification Regulates Lipid Synthesis and Transport in .

Lipid homeostasis is essential for insect growth and development. The complex of proteins associated with Set 1 (COMPASS)-catalyzed Histone 3 lysine 4 trimethylation (H3K4me3) epigenetically activates gene transcription and is involved in various biological processes, but the role and molecular mechanism of H3K4me3 modification in lipid homeostasis remains largely unknown. In the present study, we showed in that fat body-specific knockdown of () as one of the COMPASS complex components caused a decrease in lipid droplet (LD) size and triglyceride (TG) levels.

Molecular characterization and expression analyses of five genes involved in the MyD88-dependent pathway of yellow catfish (Pelteobagrus fulvidraco) responding to challenge of Aeromonas hydrophila.

MyD88-dependent pathway mediated by Toll-like receptor is one of the vital ways activating immune responses. In order to identify the role of MyD88-dependent signaling pathway in yellow catfish, the Pf_MyD88, Pf_IRAK4, Pf_IRAK1, Pf_TRAF6 and Pf_NFκB1 (p105) (Pf: abbreviation of Pelteobagrus fulvidraco) were cloned and characterized respectively. The Pf_MyD88, Pf_IRAK4, Pf_IRAK1 and Pf_TRAF6 were all highly conserved among species and showed the highest homology to that of Pangasianodon hypophthalmus.

Decapentaplegic retards lipolysis during metamorphosis in Bombyx mori and Drosophila melanogaster.

Insect morphogen decapentaplegic (Dpp) functions as one of the key extracellular ligands of the Bone Morphogenetic Protein (BMP) signaling pathway. Previous studies in insects mainly focused on the roles of Dpp during embryonic development and the formation of adult wings. In this study, we demonstrate a new role for Dpp in retarding lipolysis during metamorphosis in both Bombyx mori and Drosophila melanogaster.

Comparative Study on Immune Function of the Head and Trunk Kidney in Rainbow Trout Responding to IHNV Infection.

A teleost's kidney was divided into head kidney and trunk kidney. The head kidney is an important lymphatic organ, while the trunk kidney mainly performs osmotic pressure regulation and excretion functions. Previous studies have shown that the teleost's head kidney exerts a strong immune response against pathogen invasion, while the mechanism of immune response in the trunk kidney is still rarely reported.