Occurrence of Phytophthora macrochlamydospora in New South Wales and its pathogenicity to some legume species
Herbarium material of a Phytophthora species recorded on soybeans in New South Wales during 1985 was re-examined and identified as P. macrochlamydospora Irwin. A range of soybean cultivars and some legumes that occur naturally on the north coast region of New South Wales were tested for their reaction to artificial inoculation with P. macrochlamydospora. On soybeans, variable reactions were recorded indicating resistance in some cultivars. A number of the legumes were susceptible to infection. P. macrochlamydospora appears to be endemic on the north coast of New South Wales but has not been recorded from other areas of New South Wales.
Arkoola nigra gen. et sp.nov. (Venturiaceae) causing black leaf blight of soybean in Australia.
Arkoola nigra gen. et sp.nov. (Venturiaceae) is described, causing black leaf blight of soybean in New South Wales. It forms a superficial black mycelial web on infected plants and penetrates the host from large appressoria, causing severe spotting and blighting of leaves, stems and pods. Ascocarps develop on dead fallen leaves and on detached leaves inoculated in culture. They are black, setose and contain large cylindrical bitunicate asci with pale greenish two-celled ascospores and abundant pseudoparaphyses. The connexion between ascosporic and mycelial states has been proved by pure culture studies, and plant inoculations reproduce the disease symptoms. It is transmitted to a limited extent with seed. A range of native legumes were infected in artificial inoculation tests. The relationship of A. nigra to other genera of Venturiaceae, its possible origin, host range and associated matters are discussed.
Mastering Web Services Security
Acknowledgments. Foreword. Introduction. Overview of Web Services Security. Web Services. Getting Started with Web Services Security. XML Security and WS-Security. Security Assertion Markup Language. Principles of Securing Web Services. Security of Infrastructures for Web Services. Securing .NET Web Services. Securing Java Web Services. Interoperability of Web Services Security Technologies. Administrative Considerations for Web Services Security. Planning and Building a Secure Web Services Architecture. Glossary. References. Index.