DOBLIN, MA & CLAYTON, MN 1995, 'EFFECTS OF SECONDARILY TREATED SEWAGE EFFLUENT ON THE EARLY LIFE-HISTORY STAGES OF 2 SPECIES OF BROWN MACROALGAE - HORMOSIRA-BANKSII AND DURVILLAEA-POTATORUM', MARINE BIOLOGY, vol. 122, no. 4, pp. 689-698.
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Sewage effluent has a deleterious effect on the early life-history stages of Hosmosira banksii (Turner) Decaisne and Durvillaea potatorum (Labillardiere) Areschoug. High concentrations of sewage effluent (28 and 40% in seawater) inhibit zygote germinatio
O'Meara, TJ, Nesa, M, Seaton, DS & Sandeman, RM 1995, 'A comparison of inflammatory exudates released from myiasis wounds on sheep bred for resistance or susceptibility to Lucilia cuprina', Veterinary Parasitology, vol. 56, no. 1-3, pp. 207-223.
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Sheep bred for resistance (R) or susceptibility (S) to fleece rot and myiasis (blowfly strike) were experimentally infected with L. cuprina larvae. Exudates released from the wound site were collected during the infection at 6, 12, 18 and 24 h. The exudates were separated using two-dimensional gel electrophoresis, and proteins were silver stained and identified by immunoblotting with specific antibody and by their isoelectric points and molecular weights. Comparisons of exudate composition were made over time and between R and S sheep. Between 6 and 12 h post larval implantation the exudate was rich in IgG and fibrinogen, which is before extensive tissue damage and suggests that the exudate is not simply tissue haemorrhage but the result of an inflammatory response by the sheep to L. cuprina. The exudate grew in complexity between 12 and 18 h and contained a maximum of 74 distinct peptide spots by 24 h. Exudate from wounds on resistant sheep contained many more peptides in the first 12 h of infection, suggesting a more rapid inflammatory response. The source of proteins from the exudate remains speculative; it appears to be composed of many acute-phase proteins, large amounts of immunoglobulin G and proportionally low levels of serum albumin. Exudate composition is likely to be influenced by the local synthesis of acute-phase proteins and perhaps immunoglobulins, selective transport to the infection site and also enzymic degradation by L. cuprina larval enzymes. The more rapid exudation of acute-phase and serum proteins at infection sites on R sheep may allow the inhibition of the establishment of fleece rot bacteria or L. cuprina larvae under natural challenge.
RALPH, PJ & BURCHETT, MD 1995, 'PHOTOSYNTHETIC RESPONSES OF THE SEAGRASS HALOPHILA-OVALIS (R BR) HOOK F TO HIGH IRRADIANCE STRESS, USING CHLOROPHYLL-A FLUORESCENCE', AQUATIC BOTANY, vol. 51, no. 1-2, pp. 55-66.
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With the increasing threat of destruction to diminishing seagrass resources, there is a need for an accurate stress monitoring procedure to be developed for species of this community. In this study chlorophyll a fluorescence (20 degrees C) was used to mo
