文献类型： 外文期刊
作者： Hu, Chao 1 ; Huang, Lihua 1 ; Chen, Yancheng 3 ; Liu, Jinling 2 ; Wang, Zhilong 2 ; Gao, Bida 4 ; Zhu, Qi 5 ; Ren, Chunme 1 ;
作者机构： 1.Hunan Agr Univ, Coll Biosci & Biotechnol, Changsha 410128, Peoples R China
2.Hunan Agr Univ, Crop Gene Engn Key Lab Hunan Prov, Changsha 410128, Peoples R China
3.Minist Agr, Key Lab Ind Rice Genet & Breeding Middle & Lower, Hunan Rice Res Inst, Changsha 410125, Peoples R China
4.Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Peoples R China
5.Hunan Agr Univ, Coll Hort & Landscape, Changsha 410128, Peoples R China
关键词： Mutant complementation; OsFAH; Oryza sativa L; Sterility; Tyrosine degradation pathway
期刊名称：PLANTA （ 影响因子：3.39； 五年影响因子：3.687 ）
ISSN： 0032-0935
年卷期： 2021 年 253 卷 6 期
页码：
收录情况： SCI
摘要： Main conclusion The riceOsFAH gene functions identically to that ofArabidopsis SSCD1 encoding FAH. Loss ofOsFAH causes rice sterility. Fumarylacetoacetate hydrolase (FAH) is the last enzyme in the tyrosine (Tyr) degradation pathway that is crucial for animals. By genetic analysis of the mutant of Short-day Sensitive Cell Death 1 gene encoding Arabidopsis FAH, we first found the pathway also plays a critical role in plants (Han et al., Plant Physiol 162:1956-1964, 2013). To further understand the role of the Tyr degradation pathway in plants, we investigated a biological function of the rice FAH. Firstly, the cDNA of rice FAH gene (OsFAH) was cloned and confirmed to be able to rescue the ArabidopsisShort-day Sensitive Cell Death 1 mutant defective in the FAH. Then, we identified the OsFAH T-DNA insertion mutant and generated the OsFAH RNA interference lines, and found that loss of OsFAH results in rice sterility. Furthermore, we analyzed expression of the OsFAH gene in roots, stems, leaves and young panicles at booting stage of rice and found that its transcript level was highest in young panicles and lowest in roots. In addition, the expression analysis of beta-glucuronidase driven by OsFAH promoter in transgenic Arabidopsis showed that the OsFAH promoter was highly active in aerial tissues in vegetative stage, and sepals, filaments and stigma in reproductive stage. These results suggested that FAH plays an important role in rice fertility.
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