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- 저자 : Amonpant, Fawn (검색결과 1 건)
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Towards Establishment of a Rice Stress Response Interactome
Seo, Young-Su,Chern, Mawsheng,Bartley, Laura E.,Han, Muho,Jung, Ki-Hong,Lee, Insuk,Walia, Harkamal,Richter, Todd,Xu, Xia,Cao, Peijian,Bai, Wei,Ramanan, Rajeshwari,Amonpant, Fawn,Arul, Loganathan,Canla Public Library of Science 2011 PLoS genetics Vol.7 No.4
<▼1><P>Rice (<I>Oryza sativa</I>) is a staple food for more than half the world and a model for studies of monocotyledonous species, which include cereal crops and candidate bioenergy grasses. A major limitation of crop production is imposed by a suite of abiotic and biotic stresses resulting in 30%–60% yield losses globally each year. To elucidate stress response signaling networks, we constructed an interactome of 100 proteins by yeast two-hybrid (Y2H) assays around key regulators of the rice biotic and abiotic stress responses. We validated the interactome using protein–protein interaction (PPI) assays, co-expression of transcripts, and phenotypic analyses. Using this interactome-guided prediction and phenotype validation, we identified ten novel regulators of stress tolerance, including two from protein classes not previously known to function in stress responses. Several lines of evidence support cross-talk between biotic and abiotic stress responses. The combination of focused interactome and systems analyses described here represents significant progress toward elucidating the molecular basis of traits of agronomic importance.</P></▼1><▼2><P><B>Author Summary</B></P><P>A major limitation of crop production is imposed by a suite of abiotic and biotic stresses resulting in 30%–60% yield losses globally each year. In this paper, we used a yeast-based approach to identify rice proteins that govern the rice stress response. We validated the role of these new proteins using additional analyses to evaluate the function of these genes in rice and assessed whether they serve to positively or negatively regulate the stress response. This approach allowed us to identify ten genes that control resistance to bacterial disease and tolerance to submergence. The combination of approaches described here represents significant progress toward elucidating the molecular basis of traits of agronomic importance.</P></▼2>
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