https://ogma.newcastle.edu.au/vital/access/ /manager/Index en-au 5 Protocols for obtaining zygotic and somatic embryos for studying the regulation of early embryo development in the model legume Medicago truncatula https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:27039 Medicago truncatula to reach the early cotyledon stage. Here, we address the issue by two approaches. The first one establishes a linkage between embryo development and pod morphology in helping indicate the stage of the zygotic embryo. This is particularly based on the number of pod spirals and development of the spines. An alternative way to complement the in vivo studies is via culturing leaf explants to produce somatic embryos. The medium includes an unusual hormone combination - an auxin (1-naphthaleneacetic acid), a cytokinin (6- benzylaminopurine), abscisic acid and gibberellic acid. The different stages can be discerned growing out of the callus without dissection.]]> Wed 11 Apr 2018 15:45:31 AEST ]]> The transcription factor MtSERF1 of the ERF subfamily identified by transcriptional profiling is required for somatic embryogenesis induced by auxin plus cytokinin in Medicago truncatula https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:4896 Wed 11 Apr 2018 09:40:29 AEST ]]> Overexpression of Oil Palm Early Nodulin 93 Protein Gene (EgENOD93) Enhances In Vitro Shoot Regeneration in Arabidopsis thaliana https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48033 Thu 16 Feb 2023 10:35:56 AEDT ]]> Effect of human rhinovirus infection on airway epithelium tight junction protein disassembly and transepithelial permeability https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:26099 TM Western assays. Transepithelial permeability assays were performed to assess effects on barrier functionality. RT2 Profiler focused qPCR arrays and pathway analysis evaluating associations between human TJ and antiviral response were performed to identify potential interactions and pathways between genes of interests. Results: HRV-1B infection affected viability that was both time and TCID⁵⁰ dependent. Significant increases in apoptosis and viral replication post-infection correlated with viral titer. Viral infection significantly decreased claudin-1 protein expression at the lower TCID⁵⁰, while a significant decrease in all three TJ protein expressions occurred at higher TCID⁵⁰. Decrease in protein expression was concomitant with significant increases in epithelial permeability of fluorescein isothiocynate labeled-dextran 4 and 20 kDa. Analysis of focused qPCR arrays demonstrated a significant decrease in ZO-1 gene expression. Furthermore, network analysis between human TJ and antiviral response genes revealed possible interactions and regulation of TJ genes via interleukin (IL)-15 in response to HRV-1B infection. Conclusion: HRV-1B infection directly alters human airway epithelial TJ expression leading to increased epithelial permeability potentially via an antiviral response of IL-15.]]> Sat 24 Mar 2018 07:39:52 AEDT ]]>