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Title: A novel fungal hyperparasite of Puccinia striiformis f. sp. tritici, the causal agent of wheat stripe rust

Author
item ZHAN, G - Northwest Agriculture And Forestry University
item TIAN, Y - Northwest Agriculture And Forestry University
item WANG, F - Northwest Agriculture And Forestry University
item Chen, Xianming
item GUO, J - Northwest Agriculture And Forestry University
item JIAO, M - Northwest Agriculture And Forestry University
item HUANG, L - Northwest Agriculture And Forestry University
item KANG, Z - Northwest Agriculture And Forestry University

Submitted to: PLOS ONE
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/1/2014
Publication Date: 11/7/2014
Citation: Zhan, G.M., Tian, Y., Wang, F.P., Chen, X., Guo, J., Jiao, M., Huang, L.L., Kang, Z.S. 2014. A novel fungal hyperparasite of Puccinia striiformis f. sp. tritici, the causal agent of wheat stripe rust. PLoS One. 9(11):e111484.

Interpretive Summary: The causal fungus of wheat stripe rust was previously reported to be infected by three fungi: Lecanicillium lecanii, Microdochium nivale and Typhula idahoensis. Here, we report a novel hyperparasite of the stripe rust fungus. This hyperparasitic fungus was identified as Cladosporium cladosporioides based on morphological characteristics observed by light and scanning electron microscopy together with molecular data. The hyperparasite reduced the production and viability of urediniospores and, therefore, could potentially be used for biological control of wheat stripe rust.

Technical Abstract: Puccinia striiformis f. sp. tritici (Pst), the causal fungus of wheat stripe rust, was previously reported to be infected by Lecanicillium lecanii, Microdochium nivale and Typhula idahoensis. Here, we report a novel hyperparasite on Pst. This hyperparasitic fungus was identified as Cladosporium cladosporioides (Fresen.) GA de Vries based on morphological characteristics observed by light and scanning electron microscopy together with molecular data. The hyperparasite reduced the production and viability of urediniospores and, therefore, could potentially be used for biological control of wheat stripe rust.