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Li J, Chen S, Zhang Y, Zhao W, Yang J, Fan Y. A novel PLS-DYW type PPR protein OsASL is essential for chloroplast development in rice. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 345:112134. [PMID: 38810885 DOI: 10.1016/j.plantsci.2024.112134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/30/2024] [Accepted: 05/22/2024] [Indexed: 05/31/2024]
Abstract
Oryza longistaminata (OL), an AA-genome African wild rice which can propagate clonally via rhizome, is an important germplasm for improvement of Asian cultivated rice, however recessive lethal alleles can hitchhike clonal propagation in heterozygous state. Selfing of OL is difficult due to its self-incompatibility, but simple selfing of hybrid progeny between OL and O. sativa is effective to disclose and eliminate recessive lethal alleles. Here, we identified an exhibited albino-lethal phenotype mutant, from an F2 population between OL and O. sativa, named it albino seedling-lethal (asl). The leaves of asl mutant showed abnormal chloroplast development. The albino characteristics of asl were determined to be governed by a set of recessive nuclear genes through genetic analysis. Map-based cloning experiments found that a single nucleotide variation (G to A) was detected in the exon of OsASL in OL, which causes a premature stop codon. OsASL encodes a PLS-type PPR protein with 12 pentratricopeptide repeat domains, and is translocalized to chloroplasts. Complementation and knockout transgenic experiments further confirmed that OsASL is responsible for the albino-lethal phenotype. Loss-of-function OsASL (i.e. osasl) resulted in devoid of intron splicing of chloroplast RNA atpF, ndhA, rpl2 and rps12, and also RNA editing of ndhB, but facilitates the RNA editing of rpl2 in the plastid. Transcriptome sequencing showed that OsASL was mainly involved in chlorophyll synthesis pathway. The expression of Chlorophyll-associated genes were significantly decreased in asl plants, especially PEP (plastid-encoded RNA polymerase)-mediated genes. Our results suggest that OsASL is crucial for RNA editing, RNA splicing of chloroplast RNA group II genes, and plays an essential role in chloroplast development during early leaf development in rice.
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Affiliation(s)
- Jie Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Shufang Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Yu Zhang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Weidong Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China
| | - Jiangyi Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China.
| | - Yourong Fan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro Bioresources, College of Life Science and Technology, Guangxi University, Nanning 530004, China.
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Xu M, Zhang X, Cao J, Liu J, He Y, Guan Q, Tian X, Tang J, Li X, Ren D, Bu Q, Wang Z. OsPGL3A encodes a DYW-type pentatricopeptide repeat protein involved in chloroplast RNA processing and regulated chloroplast development. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2024; 44:29. [PMID: 38549701 PMCID: PMC10965880 DOI: 10.1007/s11032-024-01468-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/19/2024] [Indexed: 04/24/2024]
Abstract
The chloroplast serves as the primary site of photosynthesis, and its development plays a crucial role in regulating plant growth and morphogenesis. The Pentatricopeptide Repeat Sequence (PPR) proteins constitute a vast protein family that function in the post-transcriptional modification of RNA within plant organelles. In this study, we characterized mutant of rice with pale green leaves (pgl3a). The chlorophyll content of pgl3a at the seedling stage was significantly reduced compared to the wild type (WT). Transmission electron microscopy (TEM) and quantitative PCR analysis revealed that pgl3a exhibited aberrant chloroplast development compared to the wild type (WT), accompanied by significant alterations in gene expression levels associated with chloroplast development and photosynthesis. The Mutmap analysis revealed that a single base deletionin the coding region of Os03g0136700 in pgl3a. By employing CRISPR/Cas9 mediated gene editing, two homozygous cr-pgl3a mutants were generated and exhibited a similar phenotype to pgl3a, thereby confirming that Os03g0136700 was responsible for pgl3a. Consequently, it was designated as OsPGL3A. OsPGL3A belongs to the DYW-type PPR protein family and is localized in chloroplasts. Furthermore, we demonstrated that the RNA editing efficiency of rps8-182 and rpoC2-4106, and the splicing efficiency of ycf3-1 were significantly decreased in pgl3a mutants compared to WT. Collectively, these results indicate that OsPGL3A plays a crucial role in chloroplast development by regulating the editing and splicing of chloroplast genes in rice. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-024-01468-7.
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Affiliation(s)
- Min Xu
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Xinying Zhang
- College of Life Science, Northeast Agricultural University, Harbin, 150030 Heilongjiang China
| | - Jinzhe Cao
- Key Laboratory of the Ministry of Education for Ecological Restoration of Saline Vegetation, College of Life Sciences, Northeast Forestry University, Harbin, 150040 Heilongjiang China
| | - Jiali Liu
- Key Laboratory of the Ministry of Education for Ecological Restoration of Saline Vegetation, College of Life Sciences, Northeast Forestry University, Harbin, 150040 Heilongjiang China
| | - Yiyuan He
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100049 China
| | - Qingjie Guan
- Key Laboratory of the Ministry of Education for Ecological Restoration of Saline Vegetation, College of Life Sciences, Northeast Forestry University, Harbin, 150040 Heilongjiang China
| | - Xiaojie Tian
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
| | - Jiaqi Tang
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
| | - Xiufeng Li
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
| | - Deyong Ren
- State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006 People’s Republic of China
| | - Qingyun Bu
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
| | - Zhenyu Wang
- Key Laboratory of Soybean Molecular Design Breeding, State Key Laboratory of Black Soils Conservation and Utilization, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, 150081 Heilongjiang China
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Wang Q, Zhang H, Wei L, Guo R, Liu X, Zhang M, Fan J, Liu S, Liao J, Huang Y, Wang Z. Yellow-Green Leaf 19 Encoding a Specific and Conservative Protein for Photosynthetic Organisms Affects Tetrapyrrole Biosynthesis, Photosynthesis, and Reactive Oxygen Species Metabolism in Rice. Int J Mol Sci 2023; 24:16762. [PMID: 38069084 PMCID: PMC10706213 DOI: 10.3390/ijms242316762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/21/2023] [Accepted: 11/23/2023] [Indexed: 12/18/2023] Open
Abstract
Chlorophyll is the main photosynthetic pigment and is crucial for plant photosynthesis. Leaf color mutants are widely used to identify genes involved in the synthesis or metabolism of chlorophyll. In this study, a spontaneous mutant, yellow-green leaf 19 (ygl19), was isolated from rice (Oryza sativa). This ygl19 mutant showed yellow-green leaves and decreased chlorophyll level and net photosynthetic rate. Brown necrotic spots appeared on the surface of ygl19 leaves at the tillering stage. And the agronomic traits of the ygl19 mutant, including the plant height, tiller number per plant, and total number of grains per plant, were significantly reduced. Map-based cloning revealed that the candidate YGL19 gene was LOC_Os03g21370. Complementation of the ygl19 mutant with the wild-type CDS of LOC_Os03g21370 led to the restoration of the mutant to the normal phenotype. Evolutionary analysis revealed that YGL19 protein and its homologues were unique for photoautotrophs, containing a conserved Ycf54 functional domain. A conserved amino acid substitution from proline to serine on the Ycf54 domain led to the ygl19 mutation. Sequence analysis of the YGL19 gene in 4726 rice accessions found that the YGL19 gene was conserved in natural rice variants with no resulting amino acid variation. The YGL19 gene was mainly expressed in green tissues, especially in leaf organs. And the YGL19 protein was localized in the chloroplast for function. Gene expression analysis via qRT-PCR showed that the expression levels of tetrapyrrole synthesis-related genes and photosynthesis-related genes were regulated in the ygl19 mutant. Reactive oxygen species (ROS) such as superoxide anions and hydrogen peroxide accumulated in spotted leaves of the ygl19 mutant at the tillering stage, accompanied by the regulation of ROS scavenging enzyme-encoding genes and ROS-responsive defense signaling genes. This study demonstrates that a novel yellow-green leaf gene YGL19 affects tetrapyrrole biosynthesis, photosynthesis, and ROS metabolism in rice.
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Affiliation(s)
- Qiang Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Hongyu Zhang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Lingxia Wei
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Rong Guo
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Xuanzhi Liu
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (X.L.); (M.Z.)
| | - Miao Zhang
- College of Agronomy, Jiangxi Agricultural University, Nanchang 330045, China; (X.L.); (M.Z.)
| | - Jiangmin Fan
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Siyi Liu
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Jianglin Liao
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yingjin Huang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
| | - Zhaohai Wang
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education of the P.R. China, Jiangxi Agricultural University, Nanchang 330045, China; (Q.W.); (H.Z.); (L.W.); (R.G.); (J.F.); (S.L.); (J.L.)
- Key Laboratory of Agriculture Responding to Climate Change, Jiangxi Agricultural University, Nanchang 330045, China
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Xie W, Xu D, Chen F, Wang Z, Luo J, He Y, Zheng Q, Liu C. Integrated Cytological, Physiological, and Transcriptome Analyses Provide Insight into the Albino Phenotype of Chinese Plum ( Prunus salicina). Int J Mol Sci 2023; 24:14457. [PMID: 37833903 PMCID: PMC10573071 DOI: 10.3390/ijms241914457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/20/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Albino seedlings that arise during seed reproduction can have a significant impact on plant growth and breeding. In this research, we present the first report of albino occurrences in the seed reproduction process of Prunus salicina and describe the cytological, physiological, and transcriptomic changes observed in albino seedlings. The albino seedlings which were observed in several plum cultivars exhibited abnormal chloroplast ultrastructure and perturbed stomatal structure. Compared to normal seedlings, the photosynthetic pigment contents in albino seedlings decreased by more than 90%, accompanied by significant reductions in several chlorophyll fluorescence parameters. Furthermore, substantially changed photosynthetic parameters indicated that the photosynthetic capacity and stomatal function were impaired in albino seedlings. Additionally, the activities of the antioxidant enzyme were drastically altered against the background of higher proline and lower ascorbic acid in leaves of albino seedlings. A total of 4048 differentially expressed genes (DEGs) were identified through transcriptomic sequencing, and the downregulated DEGs in albino seedlings were greatly enriched in the pathways for photosynthetic antenna proteins and flavonoid biosynthesis. GLK1 and Ftsz were identified as candidate genes responsible for the impaired chloroplast development and division in albino seedlings. Additionally, the substantial decline in the expression levels of examined photosystem-related chloroplast genes was validated in albino seedlings. Our findings shed light on the intricate physiological and molecular mechanisms driving albino plum seedling manifestation, which will contribute to improving the reproductive and breeding efforts of plums.
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Affiliation(s)
- Weiwei Xie
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Dantong Xu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Fangce Chen
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Zhengpeng Wang
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Jiandong Luo
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Yehua He
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
| | - Qianming Zheng
- Institute of Pomology Science, Guizhou Academy of Agricultural Science, Ministry of Agriculture and Rural Affairs Key Laboratory of Crop Genetic Resources and Germplasm Innovation in Karst Region, Guiyang 550006, China
| | - Chaoyang Liu
- Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China, Ministry of Agriculture and Rural Affairs, College of Horticulture, South China Agricultural University, Guangzhou 510642, China; (W.X.); (D.X.); (F.C.); (Z.W.); (J.L.); (Y.H.)
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, China
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Zhang Q, Chen C, Wang Y, He M, Li Z, Shen L, Li Q, Zhu L, Ren D, Hu J, Gao Z, Zhang G, Qian Q. OsPPR11 encoding P-type PPR protein that affects group II intron splicing and chloroplast development. PLANT CELL REPORTS 2023; 42:355-369. [PMID: 36576552 DOI: 10.1007/s00299-022-02961-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/28/2022] [Indexed: 05/20/2023]
Abstract
OsPPR11 belongs to the P-type PPR protein family and can interact with OsCAF2 to regulate Group II intron splicing and affect chloroplast development in rice. Pentatricopeptide repeat (PPR) proteins participate in chloroplasts or mitochondria group II introns splicing in plants. The PPR protein family contains 491 members in rice, but most of their functions are unknown. In this study, we identified a nuclear gene encoding the P-type PPR protein OsPPR11 in chloroplasts. The qRT-PCR analysis demonstrated that OsPPR11 was expressed in all plant tissues, but leaves had the highest expression. The osppr11 mutants had yellowing leaves and a lethal phenotype that inhibited chloroplast development and photosynthesis-related gene expression and reduced photosynthesis-related protein accumulation in seedlings. Moreover, photosynthetic complex accumulation decreased significantly in osppr11 mutants. The OsPPR11 is required for ndhA, and ycf3-1 introns splicing and interact with CRM family protein OsCAF2, suggesting that these two proteins may form splicing complexes to regulate group II introns splicing. Further analysis revealed that OsCAF2 interacts with OsPPR11 through the N-terminus. These results indicate that OsPPR11 is essential for chloroplast development and function by affecting group II intron splicing in rice.
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Affiliation(s)
- Qiang Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Changzhao Chen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Yaliang Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Mengxing He
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Zhiwen Li
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310006, People's Republic of China
| | - Lan Shen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Qing Li
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Li Zhu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Deyong Ren
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Jiang Hu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Zhenyu Gao
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Guangheng Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Qian Qian
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China.
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572000, People's Republic of China.
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Zhang Q, Chen C, Wang Y, He M, Li Z, Shen L, Li Q, Zhu L, Ren D, Hu J, Gao Z, Zhang G, Qian Q. OsPPR11 encoding P-type PPR protein that affects group II intron splicing and chloroplast development. PLANT CELL REPORTS 2023; 42:421-431. [PMID: 36576552 DOI: 10.1007/s00299-022-02968-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
OsPPR11 belongs to the P-type PPR protein family and can interact with OsCAF2 to regulate Group II intron splicing and affect chloroplast development in rice. Pentatricopeptide repeat (PPR) proteins participate in chloroplasts or mitochondria group II introns splicing in plants. The PPR protein family contains 491 members in rice, but most of their functions are unknown. In this study, we identified a nuclear gene encoding the P-type PPR protein OsPPR11 in chloroplasts. The qRT-PCR analysis demonstrated that OsPPR11 was expressed in all plant tissues, but leaves had the highest expression. The osppr11 mutants had yellowing leaves and a lethal phenotype that inhibited chloroplast development and photosynthesis-related gene expression and reduced photosynthesis-related protein accumulation in seedlings. Moreover, photosynthetic complex accumulation decreased significantly in osppr11 mutants. The OsPPR11 is required for ndhA, and ycf3-1 introns splicing and interact with CRM family protein OsCAF2, suggesting that these two proteins may form splicing complexes to regulate group II introns splicing. Further analysis revealed that OsCAF2 interacts with OsPPR11 through the N-terminus. These results indicate that OsPPR11 is essential for chloroplast development and function by affecting group II intron splicing in rice.
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Affiliation(s)
- Qiang Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Changzhao Chen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Yaliang Wang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Mengxing He
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - Zhiwen Li
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
- College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310006, People's Republic of China
| | - Lan Shen
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Qing Li
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Li Zhu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Deyong Ren
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Jiang Hu
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Zhenyu Gao
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Guangheng Zhang
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China
| | - Qian Qian
- State Key Lab of Rice Biology, China National Rice Research Institute, Hangzhou, 310006, People's Republic of China.
- National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572000, People's Republic of China.
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