https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:4655 Wed 11 Apr 2018 14:40:57 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:28831 Wed 11 Apr 2018 13:23:36 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:47243 Tue 10 Jan 2023 15:12:31 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:38531 2^.- under normal and saline conditions, and consequently suffered from more severe oxidative damage. Further analyses revealed that overexpression of sly-miR398b downregulated the expression of CSD, APX and CAT, leading to the reduced activities of SOD, APX and CAT, and the contents of reduced glutathione. In addition, the transgenic plants exhibited lower rates of photosynthesis and higher photoinhibition under salinity in comparison with the wild type plants. The data provide new evidence on the miR398 mediated ROS metabolism network underlying salt stress response in tomato.]]> Thu 28 Oct 2021 15:00:53 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:48879 Thu 13 Apr 2023 09:59:42 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:46975 Thu 06 Jul 2023 15:23:14 AEST ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:46826 Lolium perenne L.), taking into account the effect of exogenous phosphorus (P) input. It was found that despite triggering antioxidant enzyme activity, Cd stress heightened lipid peroxidation levels. Exogenous P input partially mitigated the lipid peroxidation impact and decreased the levels of superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) antioxidant enzymes, revealing reduced ROS-scavenging activity. Importantly, notable relationships were determined between the amount of Cd uptake in the root and the amount of non-protein thiols (R² = 0.914), glutathione (R² = 0.805) and phytochelatins (R² = 0.904) in proportion to the amount of exogenous P applied. The levels of amino acids proline and cysteine were also enhanced by exogenous P input showing their influence in alleviating Cd stress. Overall, it is reported that Cd detoxification in ryegrass plants can be stimulated by exogenous P input, which facilitates chelation-mediated Cd detoxification processes.]]> Thu 01 Dec 2022 10:07:29 AEDT ]]> https://novaprd-lb.newcastle.edu.au/vital/access/ /manager/Repository/uon:24876 Chlorella sp. MM3, to unused or used engine oil, or their water accommodated fractions (WAFs) to determine growth inhibition and response of antioxidant enzymes. Oil type and oil concentration greatly affected the microalgal growth. Used oil at 0.04% (0.4g L^-1) resulted in 50% inhibition in algal growth, measured in terms of chlorophyll-a, while the corresponding concentration of unused oil was nontoxic. Similarly, used oil WAF showed significant toxicity to the algal growth at 10% level, whereas WAF from unused oil was nontoxic even at 100% concentration. Peroxidase enzyme in the microalga significantly increased with used oil at concentrations above 0.04g L^-1 whereas the induction of superoxide dismutase and catalase was apparent only at 0.06g L^-1. Activities of the antioxidant enzymes increased significantly when the microalga was exposed to 75 and 100% WAF obtained from used oil. The used oil toxicity on microalga could be due to the presence of toxic soluble mono- and polyaromatic compounds, heavy metals, and other compounds attained by the oil during its use in the motor engines.]]> Sat 24 Mar 2018 07:14:56 AEDT ]]>