Showing papers by "Andrew J. Beattie published in 1995"
TL;DR: The data suggest that the antimicrobial agents in metapleural secretion act primarily by disrupting the structure and function of the phospholipid bilayer of the cytoplasmic membrane.
Abstract: Secretions from exocrine metapleural glands of Myrmecia gulosa (Australian bull ant) exhibit broad-spectrum antimicrobial activity Treatment of the yeast Candida albicans with metapleural secretion resulted in the rapid and total leakage of K+ ions from cells within 10 min Ultrastructural analysis of the bacteria Bacillus cereus, Escherichia coli, and Pseudomonas aeruginosa, and cells and protoplasts of Candida albicans demonstrated gross damage of the cell membrane and aggregation of the cytoplasmic matrix of treated cells Degradation of membrane-bound organelles was also observed in Candida albicans The antimicrobially active components of metapleural secretions were nonpolar and interacted with the phospholipid bilayer, causing damage to the structural integrity of liposomes and the release of carboxyfluorescein The data suggest that the antimicrobial agents in metapleural secretion act primarily by disrupting the structure and function of the phospholipid bilayer of the cytoplasmic membrane
44 citations
TL;DR: The study evaluated the patterns of local spatial genetic structure within and among replicated sites with and without ant dispersal and highlighted the complexity of the interacting forces that may create or erase genetic structure in natural plant populations.
Abstract: Does ant dispersal of seeds in Sclerolaena diacantha (Chenopodiaceae) generate local spatial genetic structure?
36 citations
8 citations
TL;DR: The judicious use of natural history clearly demonstrates that the economic imperatives for the conservation of all species are far greater than previously imagined, and a branch of ecological economics is proposed to develop the logical and systematic exploration of biodiversity for novel products and services.
3 citations