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| 1 | YR36/WKS1-Mediated Phosphorylation of PsbO,an Extrinsic Member of Photosystem Ⅱ,Inhibits Photosynthesis and Confers Stripe Rust Resistance in Wheat显示文摘Wheat stripe rust,due to infection by Puccinia striiformis f.sp.tritici(Pst),is a devastating disease that causes significant global grain yield losses.Yr36,which encodes Wheat Kinase START1(WKS1),is an effec-tive high-temperature adult-plant resistance gene and confers resistance to a broad spectrum of Pst races.We previously showed that WKS1 phosphorylates the thylakoid ascorbate peroxidase protein and reduces its ability to detoxify peroxides,which may contribute to the accumulation of reactive oxygen species(ROS).WKS1-mediated Pst resistance is accompanied by leaf chlorosis in Pst-infected regions,but the un-derlying mechanisms remain elusive.Here,we show that WKS1 interacts with and phosphorylates PsbO,an extrinsic member of photosystem Ⅱ(PS Ⅱ),to reduce photosynthesis,regulate leaf chlorosis,and confer Pst resistance.A point mutation in PsbO-A1 or reduction in its transcript levels by RNA interference resulted in chlorosis and reduced Pst sporulation.Biochemical analyses revealed that WKS1 phosphorylates PsbO at two conserved amino acids involved in physical interactions with PS Ⅱ and reduces the binding affinity of PsbO with PS Ⅱ.Presumably,phosphorylated PsbO proteins dissociate from the PS Ⅱ complex and then un-dergo rapid degradation by cysteine and aspartic proteases.Taken together,these results demonstrate that perturbations of wheat PsbO by point mutation or phosphorylation by WKS1 reduce the rate of photo-synthesis and delay the growth of Pst pathogen before the induction of ROS. | Shuai Wang Qiu-Ping Li Jianfeng Wang Yan Yan Guo-Liang Zhang Yan Yan Huifei Zhang Jiajie Wu Feng Chen Xiaojie Wang Zhensheng Kang Jorge Dubcovsky Jin-Ying Gou | 2019 | Molecular Plant2019，12，12： | 3 |
| 2 | Large deletions within the first intron in VRN-1 are associated with spring growth habit in barley and wheat显示文摘 | Daolin Fu Péter Sz?cs Liuling Yan Marcelo Helguera Jeffrey S. Skinner Jarislav von Zitzewitz Patrick M. Hayes Jorge Dubcovsky | 2005 | Molecular Genetics and Genomics2005，，1： | 2 |
| 3 | Substitutions and deletions of genes related to grain hardness and their effect on grain texture显示文摘 | Tranquilli G Heaton J Chicaiza O Dubcovsky J | | 0，，06： | 1 |
| 4 | Chromosome location of genes affecting polyphenol oxidase activity in seeds of common and durum wheat 显示文摘 | Jimenez M Dubcovsky J | 1999 | Plant Breeding1999，118，： | 1 |
| 5 | Genome analysis of South American Elymus (Triticeae) and Leymus (Triticeae) species based on variation in repeated nucleotide sequences显示文摘 | Dubcovsky J Schlatter A R Echaide M | 1997 | Genome1997，40，： | 1 |
| 6 | Catalogue of gene symbols for wheat:2006 supplement显示文摘 | McIntosh R A Devos K M Dubcovsky J | 2006 | Annual Wheat Newsletter2006，52，： | 1 |
| 7 | Mapping of the K^+/Na^+ discrimination locus Knal in wheat 显示文摘 | Dubcovsky J Maria G S Epstein E | 1996 | Theoretical and Applied Genetics1996，92，： | 1 |
| 8 | Genetic mapping of 66 new microsatellite (SSR) loci in bread wheat显示文摘 | P. Gupta H. Balyan K. Edwards P. Isaac V. Korzun M. R?der M.–F. Gautier P. Joudrier A. Schlatter J. Dubcovsky R. De la Pena M. Khairallah G. Penner M. Hayden P. Sharp B. Keller R. Wang J. Hardouin P. Jack P. Leroy | 2002 | Theoretical and Applied Genetics (-)2002，，2： | 1 |
| 9 | Genome-wide comparative diversity uncovers multiple targets of selection for improvement in hexaploid wheat landraces and cultivars 显示文摘 | Cavanagh CS Chao S Wang BE Huang BE Stephen S Kiani S Forrest K Saintenac C Brown-Guedira GL Akhunova A See D Bai G Pumphrey M Tomar L Wong D Kong S Reynolds M da Silva ML Bockelman H Talbert L Anderson JA Dreisigacker S Baenziger S Carter A Korzun V Morrell PL Dubcovsky J Morell MK Sorrells ME Hayden MJ Akhunov E | 2013 | PNAS2013，110，： | 1 |
| 10 | A NAC gene regulating senescence improves grain protein,zinc,and iron content in wheat显示文摘 | UAUV C DISTELFELD A FAHIMA T BLECHL A DUBCOVSKY J | 2006 | Science2006，314，1298： | 1 |
| 11 | The HAK1 gene of barley is a member of a large gene family and encodes a high-affinity potassium transporter显示文摘 | Santa-María G E Rubio F Dubcovsky J | 1997 | The Plant Cell1997，9，12： | 1 |
| 12 | Map ping of the KI /NaI discrimination locus Klal in wheat显示文摘 | Dubcovsky J Santa Maria G Epstein E | 1996 | Theoretical and Applied Genetics1996，92，44： | 1 |
| 13 | Positional cloning of the wheat vernalization gene VRNI显示文摘 | YAN L LOUKOIANOV A TRANQUILLI G HELGUERA M FAHIMA T DUBCOVSKY J | 2003 | PNAS2003，100，10： | 1 |
| 14 | Regulation of flowering in temperate cereals 显示文摘 | DISTELFELD A LI C DUBCOVSKY J | 2009 | Plant Biology2009，12，2： | 1 |
| 15 | The HAK1 gene of barley is a member of a large gene family and encodes a high-affinity potassium transporter显示文摘 | Santa-María G E Rubio F Dubcovsky J | 1997 | The Plant Cell1997，9，： | 1 |
| 16 | Chromesome location of genes affecting polyphenol oxidase activity in seeds of common and durum wheat显示文摘 | Jimenez M Dubcovsky J | 1999 | Plant Breeding1999，118，： | 1 |
| 17 | Aassisted selection in pub- lic breeding programs: the wheat experience 显示文摘 | DUBCOVSKY J MARKER | 2004 | Crop Science2004，44，： | 1 |
| 18 | A NAC gene regulating senescence improves grain protein,zinc, and iron content in wheat显示文摘 | UAUY C DISTELFELD A FAHIMA T BLECHL A DUBCOVSKY J | 2006 | Science2006，314，1298： | 1 |
| 19 | Genetic map of diploid wheat, Triticum mococcum L, and its comparison with maps of Hordeum valgare L 显示文摘 | Dubcovsky J Luo M C Zhong G Y | 1996 | Genetics1996，143，： | 1 |
| 20 | Chromosome location of genes affecting polyphenol oxidase activity in seeds of common and durum wheat显示文摘 | Jimenez M Dubcovsky J | 1999 | Plant Breeding1999，118，： | 1 |
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