Abstract
Main conclusion
A homologue of the ribosomal protein L22e, Rpf84, regulates root nodule symbiosis by mediating the infection process of rhizobia and preventing bacteroids from degradation in Robinia pseudoacacia.
Abstract
Ribosomal proteins (RPs) are known to have extraribosomal functions, including developmental regulation and stress responses; however, the effects of RPs on symbiotic nodulation of legumes are still unclear. Ribosomal protein 22 of the large 60S subunit (RPL22), a non-typical RP that is only found in eukaryotes, has been shown to function as a tumour suppressor in animals. Here, a homologue of RPL22, Rpf84, was identified from the leguminous tree R. pseudoacacia. Subcellular localization assays showed that Rpf84 was expressed in the cytoplasm and nucleus. Knockdown of Rpf84 by RNA interference (RNAi) technology impaired the infection process and nodule development. Compared with the control, root and stem length, dry weight and nodule number per plant were drastically decreased in Rpf84-RNAi plants. The numbers of root hair curlings, infection threads and nodule primordia were also significantly reduced. Ultrastructure analyses showed that Rpf84-RNAi nodules contained fewer infected cells with fewer bacteria. In particular, remarkable deformation of bacteroids and fusion of multiple symbiosomes occurred in infected cells. By contrast, overexpression of Rpf84 promoted nodulation, and the overexpression nodules maintained a larger infection/differentiation region and had more infected cells filled with bacteroids than the control at 45 days post inoculation, suggesting a retarded ageing process in nodules. These results indicate for the first time that RP regulates the symbiotic nodulation of legumes and that RPL22 may function in initiating the invasion of rhizobia and preventing bacteroids from degradation in R. pseudoacacia.
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Abbreviations
- Dpi:
-
Days post-inoculation
- GFP:
-
Green fluorescent protein
- GUS:
-
β-Glucuronidase
- IT:
-
Infection thread
- Lb:
-
Leghaemoglobin
- RNAi:
-
RNA interference
- RP:
-
Ribosomal protein
- RPL:
-
Ribosomal large subunit protein
- TEM:
-
Transmission electron microscopy
References
Antolin-Llovera M, Petutsching EK, Ried MK, Lipka V, Nurnberger T, Robatzek S, Parniske M (2014) Knowing your friends and foes–plant receptor-like kinases as initiators of symbiosis or defence. New Phytol 204:791–802
Barakat A, Szick-Miranda K, Chang IF, Guyot R, Blanc G, Cooke R, Delseny M, Bailey-Serres J (2001) The organization of cytoplasmic ribosomal protein genes in the Arabidopsis genome. Plant Physiol 127:398–415
Bloemberg GV, Wijfjes AHM, Lamers GEM, Stuurman N, Lugtenberg BJJ (2000) Simultaneous imaging of Pseudomonas fluorescens WCS365 populations expressing three different autofluorescent proteins in the rhizosphere: new perspectives for studying microbial communities. Mol Plant Microbe Interact 13:1170–1176
Boisson-Dernier A, Chabaud M, Garcia F, Becard G, Rosenberg C, Barker DG (2001) Agrobacterium rhizogenes-transformed roots of Medicago truncatula for the study of nitrogen-fixing and endomycorrhizal symbiotic associations. Mol Plant Microbe Interact 14:695–700
Breakspear A, Liu CW, Roy S et al (2014) The root hair “infectome” of Medicago truncatula uncovers changes in cell cycle genes and reveals a requirement for auxin signaling in rhizobial infection. Plant Cell 26:4680–4701
Byrne ME (2009) A role for the ribosome in development. Trends Plant Sci 14:512–519
Carroll AJ, Heazlewood JL, Ito J, Millar AH (2008) Analysis of the Arabidopsis cytosolic ribosome proteome provides detailed insights into its components and their post-translational modification. Mol Cell Proteom 7:347–369
Carvalho CM, Santos AA, Pires SR, Rocha CS, Saraiva DI, Machado JPB, Mattos EC, Fietto LG, Fontes EPB (2008) Regulated nuclear trafficking of rpL10A mediated by NIK1 represents a defense strategy of plant cells against virus. PLoS Pathog 4:e1000247
Casati P, Walbot V (2003) Gene expression profiling in response to ultraviolet radiation in maize genotypes with varying flavonoid content. Plant Physiol 132:1739–1754
Chang IF, Szick-Miranda K, Pan SQ, Bailey-Serres J (2005) Proteomic characterization of evolutionarily conserved and variable proteins of arabidopsis cytosolic ribosomes. Plant Physiol 137:848–862
Chen HY, Chou MX, Wang XY, Liu SS, Zhang FL, Wei GH (2013) Profiling of differentially expressed genes in roots of Robinia pseudoacacia during nodule development using suppressive subtractive hybridization. PLoS One 8:e63930
Choi YL, Tsukasaki K, O’Neill MC et al (2007) A genomic analysis of adult T-cell leukemia. Oncogene 26:1245–1255
Dobbelstein M, Shenk T (1995) In vitro selection of RNA ligands for the ribosomal L22 protein associated with Epstein–Barr virus-expressed RNA by using randomized and cDNA-derived RNA libraries. J Virol 69:8027–8034
Fahl SP, Wang MS, Zhang Y, Duc ACE, Wiest DL (2015) Regulatory roles of rpl22 in hematopoiesis: an old dog with new tricks. Crit Rev Immunol 35:379–400
Fåhraeus G (1957) The infection of clover root hairs by nodule bacteria studied by a simple glass slide technique. J Gen Microbiol 16:374–381
Falcone Ferreyra ML, Pezza A, Biarc J, Burlingame AL, Casati P (2010) Plant L10 ribosomal proteins have different roles during development and translation under ultraviolet-B stress. Plant Physiol 153:1878–1894
Falcone Ferreyra ML, Casadevall R, Luciani MD, Pezza A, Casati P (2013) New evidence for differential roles of L10 ribosomal proteins from Arabidopsis. Plant Physiol 163:378–391
Fournier J, Teillet A, Chabaud M, Ivanov S, Genre A, Limpens E, de Carvalho-Niebel F, Barker DG (2015) Remodeling of the infection chamber before infection thread formation reveals a two-step mechanism for rhizobial entry into the host legume root hair. Plant Physiol 167:1233–1242
Hetz C (2012) The unfolded protein response: controlling cell fate decisions under ER stress and beyond. Nat Rev Mol Cell Biol 13:89–102
Horiguchi G, Molla-Morales A, Perez-Perez JM, Kojima K, Robles P, Ponce MR, Micol JL, Tsukaya H (2011) Differential contributions of ribosomal protein genes to Arabidopsis thaliana leaf development. Plant J 65:724–736
Houmani JL, Davis CI, Ruf IK (2009) Growth-promoting properties of Epstein–Barr virus EBER-1 RNA correlate with ribosomal protein L22 binding. J Virol 83:9844–9853
Kearse MG, Ireland JA, Prem SM, Chen AS, Ware VC (2013) RpL22e, but not RpL22e-like-PA, is SUMOylated and localizes to the nucleoplasm of Drosophila meiotic spermatocytes. Nucleus 4:241–258
Kim SJ, Strich R (2016) Rpl22 is required for IME1 mRNA translation and meiotic induction in S. cerevisiae. Cell Div 11:10
Kim KY, Park SW, Chung YS, Chung CH, Kim JI, Lee JH (2004) Molecular cloning of low-temperature-inducible ribosomal proteins from soybean. J Exp Bot 55:1153–1155
Le SY, Sternglanz R, Greider CW (2000) Identification of two RNA-binding proteins associated with human telomerase RNA. Mol Biol Cell 11:999–1010
Livak KJ, Schmittgen TD (2001) Analysis of relative gene expression data using real-time quantitative PCR and the 2(−Delta Delta C(T)) method. Methods 25:402–408
Moin M, Bakshi A, Madhav MS, Kirti PB (2017) Expression profiling of ribosomal protein gene family in dehydration stress responses and characterization of transgenic rice plants overexpressing RPL23A for water-use efficiency and tolerance to drought and salt stresses. Front Chem 5:97
Nagaraj S, Senthil-Kumar M, Ramu VS, Wang KR, Mysore KS (2016) Plant ribosomal proteins, RPL12 and RPL19, play a role in nonhost disease resistance against bacterial pathogens. Front Plant Sci 6:1192
Ni JQ, Liu LP, Hess D, Rietdorf J, Sun FL (2006) Drosophila ribosomal proteins are associated with linker histone H1 and suppress gene transcription. Genes Dev 20:1959–1973
Nishimura R, Hayashi M, Wu GJ, Kouchi H, Imaizumi-Anraku H, Murakami Y, Kawasaki S, Akao S, Ohmori M, Nagasawa M, Harada K, Kawaguchi M (2002) HAR1 mediates systemic regulation of symbiotic organ development. Nature 420:426–429
Nishimura T, Wada T, Yamamoto KT, Okada K (2005) The Arabidopsis STV1 protein, responsible for translation reinitiation, is required for auxin-mediated gynoecium patterning. Plant Cell 17:2940–2953
Oldroyd GED (2013) Speak, friend, and enter: signalling systems that promote beneficial symbiotic associations in plants. Nat Rev Microbiol 11:252–263
O’Leary MN, Schreiber KH, Zhang Y et al (2013) The ribosomal protein Rpl22 controls ribosome composition by directly repressing expression of its own paralog, Rpl22l1. PLoS Genet 9:e1003708
Ouyang S, Zhu W, Hamilton J et al (2007) The TIGR rice genome annotation resource: improvements and new features. Nucleic Acids Res 35:D883–D887
Rao SY, Lee SY, Gutierrez A et al (2012) Inactivation of ribosomal protein L22 promotes transformation by induction of the stemness factor, Lin28B. Blood 120:3764–3773
Rosado A, Li RX, van de Ven W, Hsu E, Raikhel NV (2012) Arabidopsis ribosomal proteins control developmental programs through translational regulation of auxin response factors. Proc Natl Acad Sci USA 109:19537–19544
Roux B, Rodde N, Jardinaud MF et al (2014) An integrated analysis of plant and bacterial gene expression in symbiotic root nodules using laser-capture microdissection coupled to RNA sequencing. Plant J 77:817–837
Roy S, Robson F, Lilley J et al (2017) MtLAX2, a functional homologue of the Arabidopsis auxin influx transporter AUX1, is required for nodule organogenesis. Plant Physiol 174:326–338
Rutkowski R, Hofmann K, Gartner A (2010) Phylogeny and function of the invertebrate p53 superfamily. Cold Spring Harb Perspect Biol 2:a001131
Savada RP, Bonham-Smith PC (2014) Differential transcript accumulation and subcellular localization of Arabidopsis ribosomal proteins. Plant Sci 223:134–145
Solanki NR, Stadanlick JE, Zhang Y, Duc AC, Lee SY, Lauritsen JPH, Zhang ZQ, Wiest DL (2016) Rp122 loss selectively impairs αβ T cell development by dysregulating endoplasmic reticulum stress signaling. J Immunol 197:2280–2289
Sormani R, Masclaux-Daubresse C, Daniele-Vedele F, Chardon F (2011) Transcriptional regulation of ribosome components are determined by stress according to cellular compartments in Arabidopsis thaliana. PLoS One 6:e28070
Soyano T, Hirakawa H, Sato S, Hayashi M, Kawaguchi M (2014) NODULE INCEPTION creates a long-distance negative feedback loop involved in homeostatic regulation of nodule organ production. Proc Natl Acad Sci USA 111:14607–14612
Steffen KK, MacKay VL, Kerr EO et al (2008) Yeast life span extension by depletion of 60S ribosomal subunits is mediated by Gcn4. Cell 133:292–302
Steffen KK, McCormick MA, Pham KM, MacKay VL, Delaney JR, Murakami CJ, Kaeberlein M, Kennedy BK (2012) Ribosome deficiency protects against ER stress in Saccharomyces cerevisiae. Genetics 191:107–118
Suzaki T, Yano K, Ito M, Umehara Y, Suganuma N, Kawaguchi M (2012) Positive and negative regulation of cortical cell division during root nodule development in Lotus japonicus is accompanied by auxin response. Development 139:3997–4006
Szakonyi D, Byrne ME (2011) Ribosomal protein L27a is required for growth and patterning in Arabidopsis thaliana. Plant J 65:269–281
Tamura K, Stecher G, Peterson D, Filipski A, Kumar S (2013) MEGA6: molecular evolutionary genetics analysis version 6.0. Mol Biol Evol 30:2725–2729
Toczyski DP, Matera AG, Ward DC, Steitz JA (1994) The Epstein–Barr-Virus (EBV) small RNA EBER1 binds and relocalizes ribosomal rrotein L22 in EBV-infected human B-lymphocytes. Proc Natl Acad Sci USA 91:3463–3467
Vasse J, De Billy F, Camut S, Truchet G (1990) Correlation between ultrastructural differentiation of bacteroids and nitrogen fixation in alfalfa nodules. J Bacteriol 172:4295–4306
Voisin AS, Salon C, Jeudy C, Warembourg FR (2003) Symbiotic N2 fixation activity in relation to C economy of Pisum sativum L. as a function of plant phenology. J Exp Bot 54(393):2733–2744
Wei GH, Chen WM, Zhu WF, Chen C, Young JPW, Bontemps C (2009) Invasive Robinia pseudoacacia in China is nodulated by Mesorhizobium and Sinorhizobium species that share similar nodulation genes with native American symbionts. FEMS Microbiol Ecol 68:320–328
Xiao TT, Schilderink S, Moling S, Deinum EE, Kondorosi E, Franssen H, Kulikova O, Niebel A, Bisseling T (2014) Fate map of Medicago truncatula root nodules. Development 141:3517–3528
Yang M, Sun H, He J, Wang H, Yu X, Ma L, Zhu C (2014) Interaction of ribosomal protein L22 with casein kinase 2alpha: a novel mechanism for understanding the biology of non-small cell lung cancer. Oncol Rep 32:139–144
Zhang Y, Duc AC, Rao S, Sun XL, Bilbee AN, Rhodes M, Li Q, Kappes DJ, Rhodes J, Wiest DL (2013) Control of hematopoietic stem cell emergence by antagonistic functions of ribosomal protein paralogs. Dev Cell 24:411–425
Zhang Y, O’Leary MN, Peri S et al (2017) Ribosomal proteins Rpl22 and Rpl22l1 control morphogenesis by regulating pre-mRNA splicing. Cell Rep 18:545–556
Zheng M, Wang YH, Liu X et al (2016) The RICE MINUTE-LIKE1 (RML1) gene, encoding a ribosomal large subunit protein L3B, regulates leaf morphology and plant architecture in rice. J Exp Bot 67:3457–3469
Zhou F, Roy B, von Arnim AG (2010) Translation reinitiation and development are compromised in similar ways by mutations in translation initiation factor eIF3 h and the ribosomal protein RPL24. BMC Plant Biol 10:193
Zhou X, Liao WJ, Liao JM, Liao P, Lu H (2015) Ribosomal proteins: functions beyond the ribosome. J Mol Cell Biol 7:92–104
Acknowledgements
This work was financially supported by the National Key Research and Development Program of China (Grant no. 2016YFD0800706), the National Natural Science Foundation of China (Grant no. 31172252) and the Shaanxi Province Natural Science Foundation of China (Grant no. 2016JM3004).
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Feng, Z., Zhang, L., Wu, Y. et al. The Rpf84 gene, encoding a ribosomal large subunit protein, RPL22, regulates symbiotic nodulation in Robinia pseudoacacia. Planta 250, 1897–1910 (2019). https://doi.org/10.1007/s00425-019-03267-3
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DOI: https://doi.org/10.1007/s00425-019-03267-3