BIO08 Analysis and Assessment of Phytophthora Community in Perth

Abstract

Phytophthora species were everywhere and they appeared to be no environmental filtering. Many studies reported that Phytophthora can be spread long-distances through moving infested soil by animals or humans along preferred pathways. In this study, analysis and assessment based on field works are presented for the Phytophthora community in Perth. Operation parameters of the nanopowder extraction method employing ultrasonic waves; mainly ultrasonic frequency, freezing temperature and application time, are very important to control the minimum particle size of the extracted nanopowder. This extraction method enables to produce nanopowder with high structural purity as the particle size approximately be the same as in the thin film sample.