Monika RIEDLE-BAUER, Dragana BANDION, Monika MADERCIC, Markus GORFER
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引用次数: 0
Abstract
Biological control agents (BCAs) have shown efficacy against several pathogens associated with Esca of grapevines, but their effects on the white rot pathogen Fomitiporia mediterranea (Fmed) have not been extensively studied. An assessment of several potential BCAs evaluated activity against Fmed. This included isolates of Trichoderma simmonsii, T. citrinoviride, T. atroviride, Bacillus subtilis, B. amyloliquefaciens/velezensis and Pseudomonas koreensis, all obtained from grapevines in Austria. Effects of the BCAs on Fmed growth were assessed in dual culture assays and in assays with fresh and autoclaved grapevine wood disks. In the dual culture assays, all the BCAs reduced growth of Fmed compared to experimental controls. In the Trichoderma experiments, Fmed growth only marginally exceeded the size of the initial mycelium plugs, and growth inhibition for all Fmed isolates and strains was 91 to 97%. Growth of Fmed was inhibited by 55 to 66% by B. amyloliquefaciens/velezensis isolates, by 41 to 49% by B. subtilis isolates, and by 55 to 66% by P. koreensis. In the wood disc assays, Fmed colonized fresh and autoclaved wood. All the Trichoderma isolates almost completely suppressed Fmed growth on fresh and autoclaved wood. Less but statistically significant inhibition was recorded for an isolate of B. amyloliquefaciens/velezensis and one of P. koreensis.
期刊介绍:
Phytopathologia Mediterranea is an international journal edited by the Mediterranean Phytopathological Union. The journal’s mission is the promotion of plant health for Mediterranean crops, climate and regions, safe food production, and the transfer of new knowledge on plant diseases and their sustainable management.
The journal deals with all areas of plant pathology, including etiology, epidemiology, disease control, biochemical and physiological aspects, and utilization of molecular technologies. All types of plant pathogens are covered, including fungi, oomycetes, nematodes, protozoa, bacteria, phytoplasmas, viruses, and viroids. The journal also gives a special attention to research on mycotoxins, biological and integrated management of plant diseases, and the use of natural substances in disease and weed control. The journal focuses on pathology of Mediterranean crops grown throughout the world.
The Editorial Board of Phytopathologia Mediterranea has recently been reorganised, under two Editors-in-Chief and with an increased number of editors.