Rice false smut fungus hijacks the rice nutrients supply by blocking and mimicking the fertilization of rice ovary
| Autor: | Jie-Hui Song, Guido Schnabel, Wei Wei, Weixiao Yin, Daohong Jiang, Yang Lin, Chaoxi Luo, You-Liang Peng, Bo Lv, Junbin Huang |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
0301 basic medicine Pollination food and beverages Fungus Biology medicine.disease_cause biology.organism_classification 01 natural sciences Microbiology 03 medical and health sciences 030104 developmental biology Nutrient Human fertilization Agronomy Pollen Botany Smut Rice false smut medicine Pathogen Ecology Evolution Behavior and Systematics 010606 plant biology & botany |
| Zdroj: | Environmental Microbiology. 18:3840-3849 |
| ISSN: | 1462-2912 |
| Popis: | Summary Rice false smut disease is an increasing threat to rice production in the world. Despite of best efforts, research for the infection of the fungus has yielded equivocal and conflicting results about where and how the infection is initiated and developed. Here we show a stepwise infection pattern and sophisticated regulation during this process. Initial infection occurred on the filaments, which prevented the production of mature pollen thus blocked the pollination. In the following days, the pathogen invaded the stigmas and styles, occasionally the ovaries. Expression analysis indicated that the fungus mimicked a successful fertilization process and enabled the continuous supply of nutrients for fungus to produce false smut balls. The stepwise infection of flower organs and mimicry of ovary fertilization unveiled in this study guided the rice plant into supplying nutrients for false smut ball development and represents a new and unique biological process of host pathogen interactions. |
| Databáze: | OpenAIRE |
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