共查询到20条相似文献,搜索用时 406 毫秒
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Emp10 encodes a mitochondrial PPR protein that affects the cis‐splicing of nad2 intron 1 and seed development in maize 下载免费PDF全文
Manjun Cai Shuzhen Li Feng Sun Qin Sun Hailiang Zhao Xuemei Ren Yanxin Zhao Bao‐Cai Tan Zuxin Zhang Fazhan Qiu 《The Plant journal : for cell and molecular biology》2017,91(1):132-144
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The pentatricopeptide repeat protein EMPTY PERICARP8 is required for the splicing of three mitochondrial introns and seed development in maize 下载免费PDF全文
Feng Sun Xiaoyan Zhang Yun Shen Hongchun Wang Rui Liu Xiaomin Wang Dahai Gao Yan‐Zhuo Yang Yiwei Liu Bao‐Cai Tan 《The Plant journal : for cell and molecular biology》2018,95(5):919-932
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Yan-Zhuo Yang Shuo Ding Xin-Yuan Liu Chunhui Xu Feng Sun Bao-Cai Tan 《植物学报(英文版)》2023,65(11):2456-2468
RNA helicases participate in nearly all aspects of RNA metabolism by rearranging RNAs or RNA–protein complexes in an adenosine triphosphate-dependent manner. Due to the large RNA helicase families in plants, the precise roles of many RNA helicases in plant physiology and development remain to be clarified. Here, we show that mutations in maize (Zea mays) DEAD-box RNA helicase 48 (ZmRH48) impair the splicing of mitochondrial introns, mitochondrial complex biosynthesis, and seed development. Loss of ZmRH48 function severely arrested embryogenesis and endosperm development, leading to defective kernel formation. ZmRH48 is targeted to mitochondria, where its deficiency dramatically reduced the splicing efficiency of five cis-introns (nad5 intron 1; nad7 introns 1, 2, and 3; and ccmFc intron 1) and one trans-intron (nad2 intron 2), leading to lower levels of mitochondrial complexes I and III. ZmRH48 interacts with two unique pentatricopeptide repeat (PPR) proteins, PPR-SMR1 and SPR2, which are required for the splicing of over half of all mitochondrial introns. PPR-SMR1 interacts with SPR2, and both proteins interact with P-type PPR proteins and Zm-mCSF1 to facilitate intron splicing. These results suggest that ZmRH48 is likely a component of a splicing complex and is critical for mitochondrial complex biosynthesis and seed development. 相似文献
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Empty pericarp7 encodes a mitochondrial E–subgroup pentatricopeptide repeat protein that is required for ccmFN editing,mitochondrial function and seed development in maize 下载免费PDF全文
Feng Sun Xiaomin Wang Géraldine Bonnard Yun Shen Zhihui Xiu Xiaojie Li Dahai Gao Zhonghang Zhang Bao‐Cai Tan 《The Plant journal : for cell and molecular biology》2015,84(2):283-295
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AEF1/MPR25 is implicated in RNA editing of plastid atpF and mitochondrial nad5, and also promotes atpF splicing in Arabidopsis and rice 下载免费PDF全文
Aaron Yap Peter Kindgren Catherine Colas des Francs‐Small Tomohiko Kazama Sandra K. Tanz Kinya Toriyama Ian Small 《The Plant journal : for cell and molecular biology》2015,81(5):661-669
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Mitochondria play an important role in maintaining metabolic and energy homeostasis in the plant cell. Thus, perturbation of mitochondrial structure and function will affect plant growth and development. Arabidopsis slow growth3 (slo3) is defective in At3g61360 that encodes a pentatricopeptide repeat (PPR) protein. Analysis of slo3 mitochondrial RNA metabolism revealed that the splicing of nad7 intron 2 is impaired, which leads to a dramatic reduction in complex I activity. So the SLO3 PPR protein is a splicing factor that is required for the removal of nad7 intron 2 in Arabidopsis. The slo3 mutant plants have obvious phenotypes with severe growth retardation and delayed development. The size of root apical meristem (RAM) is reduced and the production of meristem cells is decreased in slo3. Furthermore, the rosette leaves of slo3 are curled or crinkled, which may be derived from uneven growth of the leaf surface. The underlying mechanisms by which dysfunctional mitochondria affect these growth and developmental phenotypes have yet to be established. Nonetheless, plant hormone auxin is known to play an important role in orchestrating the development of RAM and leaf shape. It is possible that dysfunctional mitochondria may interact with auxin signaling pathways to regulate the boundary of RAM and the cell division arrest front during leaf growth in Arabidopsis. 相似文献
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A pioneer protein is part of a large complex involved in trans‐splicing of a group II intron in the chloroplast of Chlamydomonas reinhardtii 下载免费PDF全文
Linnka Lefebvre‐Legendre Olga Reifschneider Laxmikanth Kollipara Albert Sickmann Dirk Wolters Ulrich Kück Michel Goldschmidt‐Clermont 《The Plant journal : for cell and molecular biology》2016,85(1):57-69
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Sosso D Mbelo S Vernoud V Gendrot G Dedieu A Chambrier P Dauzat M Heurtevin L Guyon V Takenaka M Rogowsky PM 《The Plant cell》2012,24(2):676-691
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