https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:20021 Wed 22 Mar 2023 17:00:54 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:44081 Thu 06 Oct 2022 15:06:26 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:22245 Solanum lycopersicum L.) lines subjected to normal (control) and heat stress temperatures. At the control temperature of 25/20 °C (day/night) the HT line exhibited higher cell wall invertase (CWIN) activity in flowers and young fruits and partitioned more sucrose to fruits but less to vegetative tissues as compared to the HS line, independent of leaf photosynthetic capacity. Upon 2-, 4-, or 24-h exposure to day or night temperatures of 5 °C or more above 25/20 °C, cell wall (CWIN) and vacuolar invertases (VIN), but not sucrose synthase (SuSy), activities in young fruit of the HT line were significantly higher than those of the HS line. The HT line had a higher level of transcript of a CWIN gene, Lin7, in 5-day fruit than the HS line under control and heat stress temperatures. Interestingly, heat induced transcription of an invertase inhibitor gene, INVINH1, but reduced its protein abundance. Transcript levels of LePLDa1, encoding phospholipase D, which degrades cell membranes, was less in the HT line than in the HS line after exposure to heat stress. The data indicate that high invertase activity of, and increased sucrose import into, young tomato fruit could contribute to their heat tolerance through increasing sink strength and sugar signalling activities, possibly regulating a programmed cell death pathway.]]> Sat 24 Mar 2018 07:17:34 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:32133 in vitro can lead to cell death. At low concentration NaAsO₂ can induce autophagy and at high concentration it can induce apoptosis. The work presented in this poster shows the initial cellular response of human lung epithelial A549 cells to acute exposure to NaAsO₂ in vitro.]]> Mon 23 Sep 2019 12:35:47 AEST ]]>