57 research outputs found
A comparative assessment of seedling survival and biomass accumulation for fourteen wetland plant species grown under minor water-depth differences
No full textThe purpose of this experiment was to investigate the survival and biomass accumulation of wetland plant species under different water depths in controlled microcosms. In the greenhouse, two-weekold seedlings were randomly assigned to one of seven water-depth treatments (26, 24, 22, 0, 12, 14, and 16 cm relative to the soil surface) and allowed to grow for six months. Species included five perennial sedges, four perennial and one annual grasses, and two perennial and two annual forbs. Twelve of the species had their lowest biomass and lowest survivorship at water depths greater than 0 cm. The root:shoot ratio, however, did not change across water-depth treatments. Biomass accumulation differed by plant form (sedges. forbs.grasses). Annuals had the greatest biomass values across the widest range of water depths compared to perennials. Of the fourteen plants tested, Lythrum salicaria (purple loosestrife), one of the two invasive, non-native species tested, had the greatest biomass at water depths from 26 to 12, whereas Phalaris arundinacea (reed canarygrass), the other invasive, had comparatively small mean biomass values. Ranking of biomass between species was highly concordant between non-flooded treatments but not significantly concordant between flooded treatments indicating that plant species have distinct responses to flooding. This research suggests that newly established plant seedlings in wetland restorations should not be submerged, or if submergence is unavoidable, annuals and sedges may be more tolerant of prolonged flooding.Peer reviewedwetland restorationfloodinghydrologyfundamental nichehydrophyt
A comparative assessment of seedling survival and biomass accumulation for fourteen wetland plant species grown under minor water-depth differences
No full textThe purpose of this experiment was to investigate the survival and biomass accumulation of wetland plant species under different water depths in controlled microcosms. In the greenhouse, two-weekold seedlings were randomly assigned to one of seven water-depth treatments (26, 24, 22, 0, 12, 14, and 16 cm relative to the soil surface) and allowed to grow for six months. Species included five perennial sedges, four perennial and one annual grasses, and two perennial and two annual forbs. Twelve of the species had their lowest biomass and lowest survivorship at water depths greater than 0 cm. The root:shoot ratio, however, did not change across water-depth treatments. Biomass accumulation differed by plant form (sedges. forbs.grasses). Annuals had the greatest biomass values across the widest range of water depths compared to perennials. Of the fourteen plants tested, Lythrum salicaria (purple loosestrife), one of the two invasive, non-native species tested, had the greatest biomass at water depths from 26 to 12, whereas Phalaris arundinacea (reed canarygrass), the other invasive, had comparatively small mean biomass values. Ranking of biomass between species was highly concordant between non-flooded treatments but not significantly concordant between flooded treatments indicating that plant species have distinct responses to flooding. This research suggests that newly established plant seedlings in wetland restorations should not be submerged, or if submergence is unavoidable, annuals and sedges may be more tolerant of prolonged flooding.Peer reviewedwetland restorationfloodinghydrologyfundamental nichehydrophyt
Autologous fat grafting: current state of clinical practice in the Australian setting
No full text**Objective**: This study aimed to gather and present systemic data about current fat grafting practice in Australia. We knew prior to the study that data for Australian fat grafting is limited, so we sought information from distinct sources. Part 1 aimed to present fat grafting data available from the Australian Breast Device Registry (ABDR). Part 2 aimed to present the details of current fat grafting practice by Australian plastic and reconstructive surgeons.
**Methods**: In part 1, fat grafting data from the ABDR from its inception in 2012 to 2020 was collected and summarised. In part 2, a comprehensive survey about all aspects of fat grafting practice was distributed to surgeon members of the Australian Society of Plastic Surgeons (ASPS).
**Results**: Part 1. The ABDR recorded an 8.4 per cent and 6.0 per cent increase in fat grafting at the time of breast device insertion surgery from 2012 to 2020 for reconstructive and aesthetic procedures respectively. Fat grafting with breast device insertion, in previously irradiated breast tissue, increased from 0 per cent to 17.4 per cent in the same period.
Part 2. One in five of all surgeons of the Australian Society of Plastic Surgeons completed the survey. Our survey demonstrated that fat grafting is highly heterogeneous with respect to donor site selection, harvest technique, processing technique, number of sessions required and volumetric follow-up.
**Conclusion**: Our study is the first attempt to present national data on fat grafting. It demonstrates clearly that uptake of autologous fat grafting for breast reconstruction and aesthetic procedures is rapidly increasing Australia-wide. It demonstrates that procedural variables of fat grafting are not standardised among Australian plastic surgeons. This indicates that further clinical data relating to patient demographics, procedural variables and outcomes are vital to ensure patient safety, health resource management and to inform best practice guidelines
Targeting lymphatic vessel functions through tyrosine kinases
No full textThe lymphatic vascular system is actively involved in tissue fluid homeostasis, immune surveillance and fatty acid transport. Pathological conditions can arise from injury to the lymphatics, or they can be recruited in the context of cancer to facilitate metastasis. Protein tyrosine kinases are central players in signal transduction networks and regulation of cell behavior. In the lymphatic endothelium, tyrosine kinases are involved in processes such as the maintenance of existing lymphatic vessels, growth and maturation of new vessels and modulation of their identity and function. As such, they are attractive targets for both existing inhibitors and the development of new inhibitors which affect lymphangiogenesis in pathological states such as cancer. RNAi screening provides an opportunity to identify the functional role of tyrosine kinases in the lymphatics. This review will discuss the role of tyrosine kinases in lymphatic biology and the potential use of inhibitors for anti-lymphangiogenic therapy
Uncovering the Role of Collecting Lymphatic Vessels in Cancer.
No full textLymphatic vessels are a critical part of the circulatory system, allowing the return of fluid and cells that escape the blood vessels, and playing an intimate role in the body's immune function. In cancer, the lymphatic vessels serve as conduits for the transport of tumour cells to lymph nodes and may contribute to distant metastasis. Our study is designed to understand the role played by major collecting lymphatic vessels in cancer and to identify molecules that control their activity.$AUD 688,875.56Project GrantsStandard Project Gran
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