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title = {{Biological control of Pythium ultimum by Stenotrophomonas maltophilia W81 is mediated by an extracellular proteolytic activity}},  journal = {Microbiology},  }  @article{Zhang_2000,  doi = {10.1094/phyto.2000.90.4.384},  url = {http://dx.doi.org/10.1094/phyto.2000.90.4.384},  year = {2000},  month = {apr},  publisher = {Scientific Societies},  volume = {90},  number = {4},  pages = {384--389},  author = {Zhongge Zhang and Garry Y. Yuen},  title = {{The Role of Chitinase Production by Stenotrophomonas maltophilia Strain C3 in Biological Control of Bipolaris sorokiniana}},  journal = {Phytopathology},  }