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Ma L, Zhang T, Zhu QH, Zhang X, Sun J, Liu F. HSP70 and APX1 play important roles in cotton male fertility by mediating ROS homeostasis. Int J Biol Macromol 2024; 278:134856. [PMID: 39168224 DOI: 10.1016/j.ijbiomac.2024.134856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 07/22/2024] [Accepted: 08/17/2024] [Indexed: 08/23/2024]
Abstract
Male sterility is used in the production of hybrid seeds and can improve the breeding efficiency of cotton hybrids. Reactive oxygen species is closely associated with the tapetum and pollen development, but their relationship in cotton male fertility remains unclear. In this study, we comprehensively compared the cytology and proteome of the anthers from an Upland cotton (Gossypium hirsutum) material, Shida 98 (WT), and its nearly-isogenic male sterile line Shida 98A (MS). Cytology indicated delayed PCD in the tapetum and defects in microspores in MS anthers. And further studies revealed disruption of ROS homeostasis. Proteomic analysis identified proteins with differential abundance mainly being related to redox homeostasis, protein folding, and apoptotic signaling pathways. GhAPX1 interacted with GhHSP70 and played a crucial role in the development of cotton anthers. Exogenous application of HSP70 inhibitor increased H2O2 content and decreased the activity of APX1 and pollen viability. The GhAPX1 mutants generated by CRISPR/Cas9-mediated gene editing exhibited premature degradation of the tapetum, significant decrease in pollen viability, and significant increase in H2O2 content. Altogether, our results imply HSP70 and APX1 being the key players jointly regulating male fertility by mediating ROS homeostasis. These results provide insights into the proteins associated with male fertility.
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Affiliation(s)
- Lihong Ma
- Key Laboratory of Oasis Eco-agriculture, College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Tao Zhang
- Key Laboratory of Oasis Eco-agriculture, College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Qian-Hao Zhu
- CSIRO Agriculture and Food, GPO Box 1700, Canberra 2601, Australia
| | - Xinyu Zhang
- Key Laboratory of Oasis Eco-agriculture, College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China
| | - Jie Sun
- Key Laboratory of Oasis Eco-agriculture, College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China.
| | - Feng Liu
- Key Laboratory of Oasis Eco-agriculture, College of Agriculture, Shihezi University, Shihezi 832000, Xinjiang, China.
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Mao X, Yu H, Xue J, Zhang L, Zhu Q, Lv S, Feng Y, Jiang L, Zhang J, Sun B, Yu Y, Li C, Ma Y, Liu Q. OsRHS Negatively Regulates Rice Heat Tolerance at the Flowering Stage by Interacting With the HSP Protein cHSP70-4. PLANT, CELL & ENVIRONMENT 2024. [PMID: 39257305 DOI: 10.1111/pce.15152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Revised: 08/05/2024] [Accepted: 08/24/2024] [Indexed: 09/12/2024]
Abstract
Heat stress at the flowering stage significantly impacts rice grain yield, yet the number of identified genes associated with rice heat tolerance at this crucial stage remains limited. This study focuses on elucidating the function of the heat-induced gene reduced heat stress tolerance 1 (OsRHS). Overexpression of OsRHS leads to reduced heat tolerance, while RNAi silencing or knockout of OsRHS enhances heat tolerance without compromising yield, as assessed by the seed setting rate. OsRHS is localized in the cytoplasm and mainly expressed in the glume and anther of spikelet. Moreover, OsRHS was found to interact with the HSP protein cHSP70-4, and the knockout of cHSP70-4 resulted in increased heat tolerance. Complementation assays revealed that the knockout of cHSP70-4 could restore the compromised heat tolerance in OsRHS overexpression plants. Additional investigation reveals that elevated temperatures can amplify the bond between OsRHS and cHSP70-4 within rice. Furthermore, our findings indicate that under heat stress conditions during the flowering stage, OsRHS plays a negative regulatory role in the expression of many stress-related genes. These findings unveil the crucial involvement of OsRHS and cHSP70-4 in modulating heat tolerance in rice and identify novel target genes for enhancing heat resilience during the flowering phase in rice.
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Affiliation(s)
- Xingxue Mao
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Hang Yu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jiao Xue
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Lanlan Zhang
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Qingfeng Zhu
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Shuwei Lv
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yanzhao Feng
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Liqun Jiang
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jing Zhang
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Bingrui Sun
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yang Yu
- Guangdong Key Laboratory of Crop Germplasm Resources Preservation and Utilization, Agro-Biological Gene Research Center, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Chen Li
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yamei Ma
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Qing Liu
- Guangdong Key Laboratory of New Technology in Rice Breeding, Guangdong Rice Engineering Laboratory, Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Rice Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, China
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Zhang Z, Yang C, Xi J, Wang Y, Guo J, Liu Q, Liu Y, Ma Y, Zhang J, Ma F, Li C. The MdHSC70-MdWRKY75 module mediates basal apple thermotolerance by regulating the expression of heat shock factor genes. THE PLANT CELL 2024; 36:3631-3653. [PMID: 38865439 PMCID: PMC11371167 DOI: 10.1093/plcell/koae171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 04/12/2024] [Accepted: 05/18/2024] [Indexed: 06/14/2024]
Abstract
Heat stress severely restricts the growth and fruit development of apple (Malus domestica). Little is known about the involvement of WRKY proteins in the heat tolerance mechanism in apple. In this study, we found that the apple transcription factor (TF) MdWRKY75 responds to heat and positively regulates basal thermotolerance. Apple plants that overexpressed MdWRKY75 were more tolerant to heat stress while silencing MdWRKY75 caused the opposite phenotype. RNA-seq and reverse transcription quantitative PCR showed that heat shock factor genes (MdHsfs) could be the potential targets of MdWRKY75. Electrophoretic mobility shift, yeast one-hybrid, β-glucuronidase, and dual-luciferase assays showed that MdWRKY75 can bind to the promoters of MdHsf4, MdHsfB2a, and MdHsfA1d and activate their expression. Apple plants that overexpressed MdHsf4, MdHsfB2a, and MdHsfA1d exhibited heat tolerance and rescued the heat-sensitive phenotype of MdWRKY75-Ri3. In addition, apple heat shock cognate 70 (MdHSC70) interacts with MdWRKY75, as shown by yeast two-hybrid, split luciferase, bimolecular fluorescence complementation, and pull-down assays. MdHSC70 acts as a negative regulator of the heat stress response. Apple plants that overexpressed MdHSC70 were sensitive to heat, while virus-induced gene silencing of MdHSC70 enhanced heat tolerance. Additional research showed that MdHSC70 exhibits heat sensitivity by interacting with MdWRKY75 and inhibiting MdHsfs expression. In summary, we proposed a mechanism for the response of apple to heat that is mediated by the "MdHSC70/MdWRKY75-MdHsfs" molecular module, which enhances our understanding of apple thermotolerance regulated by WRKY TFs.
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Affiliation(s)
- Zhijun Zhang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Chao Yang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Jing Xi
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Yuting Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Jing Guo
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Qianwei Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Yusong Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Yang Ma
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Jing Zhang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Fengwang Ma
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
| | - Chao Li
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production/Shaanxi Key Laboratory of Apple, College of Horticulture, Northwest A & F University, Yangling 712100, Shaanxi, China
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Zhang S, Wang X, Zhao T, Zhou C. Effector CLas0185 targets methionine sulphoxide reductase B1 of Citrus sinensis to promote multiplication of 'Candidatus Liberibacter asiaticus' via enhancing enzymatic activity of ascorbate peroxidase 1. MOLECULAR PLANT PATHOLOGY 2024; 25:e70002. [PMID: 39215961 PMCID: PMC11365454 DOI: 10.1111/mpp.70002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/17/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024]
Abstract
Citrus huanglongbing (HLB) has been causing enormous damage to the global citrus industry. As the main causal agent, 'Candidatus Liberibacter asiaticus' (CLas) delivers a set of effectors to modulate host responses, while the modes of action adopted remain largely unclear. Here, we demonstrated that CLIBASIA_00185 (CLas0185) could attenuate reactive oxygen species (ROS)-mediated cell death in Nicotiana benthamiana. Transgenic expression of CLas0185 in Citrus sinensis 'Wanjincheng' enhanced plant susceptibility to CLas. We found that methionine sulphoxide reductase B1 (CsMsrB1) was targeted by the effector, and its abundance was elevated in CLas0185-transgenic citrus plants. Their interaction promoted CLas proliferation. We then determined that CsMsrB1 sustained redox state and enzymatic activity of ascorbate peroxidase 1 (CsAPX1) under oxidative stress. The latter reduced H2O2 accumulation and was associated with host susceptibility to CLas infection. Consistently, citrus plants expressing CLas0185 and CsMsrB1 conferred enhanced APX activity and decreased H2O2 content. Taken together, these findings revealed how CLas0185 benefits CLas colonization by targeting CsMsrB1, which facilitated the antioxidant activity and depressed ROS during pathogen infection.
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Affiliation(s)
- Shushe Zhang
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
- State Key Laboratory for Biology of Plant Diseases and Insect PestsChinese Academy of Agriculture Sciences, Institute of Plant ProtectionBeijingChina
| | - Xuefeng Wang
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
| | - Tingchang Zhao
- State Key Laboratory for Biology of Plant Diseases and Insect PestsChinese Academy of Agriculture Sciences, Institute of Plant ProtectionBeijingChina
| | - Changyong Zhou
- Citrus Research InstituteSouthwest University, National Citrus Engineering Research CenterChongqingChina
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Yarullina L, Kalatskaja J, Tsvetkov V, Burkhanova G, Yalouskaya N, Rybinskaya K, Zaikina E, Cherepanova E, Hileuskaya K, Nikalaichuk V. The Influence of Chitosan Derivatives in Combination with Bacillus subtilis Bacteria on the Development of Systemic Resistance in Potato Plants with Viral Infection and Drought. PLANTS (BASEL, SWITZERLAND) 2024; 13:2210. [PMID: 39204646 PMCID: PMC11360750 DOI: 10.3390/plants13162210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 09/04/2024]
Abstract
Viral diseases of potatoes are among the main problems causing deterioration in the quality of tubers and loss of yield. The growth and development of potato plants largely depend on soil moisture. Prevention strategies require comprehensive protection against pathogens and abiotic stresses, including modeling the beneficial microbiome of agroecosystems combining microorganisms and immunostimulants. Chitosan and its derivatives have great potential for use in agricultural engineering due to their ability to induce plant immune responses. The effect of chitosan conjugate with caffeic acid (ChCA) in combination with Bacillus subtilis 47 on the transcriptional activity of PR protein genes and changes in the proteome of potato plants during potato virus Y (PVY) infection and drought was studied. The mechanisms of increasing the resistance of potato plants to PVY and lack of moisture are associated with the activation of transcription of genes encoding PR proteins: the main protective protein (PR-1), chitinase (PR-3), thaumatin-like protein (PR-5), protease inhibitor (PR-6), peroxidase (PR-9), and ribonuclease (PR-10), as well as qualitative and quantitative changes in the plant proteome. The revealed activation of the expression of marker genes of systemic acquired resistance and induced systemic resistance under the influence of combined treatment with B. subtilis and chitosan conjugate indicate that, in potato plants, the formation of resistance to viral infection in drought conditions proceeds synergistically. By two-dimensional electrophoresis of S. tuberosum leaf proteins followed by MALDI-TOF analysis, 10 proteins were identified, the content and composition of which differed depending on the experiment variant. In infected plants treated with ChCA, the synthesis of proteinaceous RNase P 1 and oxygen-evolving enhancer protein 2 was enhanced in conditions of normal humidity, and 20 kDa chaperonin and TMV resistance protein N-like was enhanced in conditions of lack of moisture. The virus coat proteins were detected, which intensively accumulated in the leaves of plants infected with potato Y-virus. ChCA treatment reduced the content of these proteins in the leaves, and in plants treated with ChCA in combination with Bacillus subtilis, viral proteins were not detected at all, both in conditions of normal humidity and lack of moisture, which suggests the promising use of chitosan derivatives in combination with B. subtilis bacteria in the regulation of plant resistance.
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Affiliation(s)
- Liubov Yarullina
- Institute of Biochemistry and Genetics, pr. Oktyabrya, 71, 450054 Ufa, Russia; (G.B.); (E.Z.); (E.C.)
| | - Joanna Kalatskaja
- Institute of Experimental Botany Named after V.F. Kuprevich, ul. Akademicheskaya, 27, 220072 Minsk, Belarus; (J.K.); (N.Y.); (K.R.)
| | - Vyacheslav Tsvetkov
- Department of Biochemistry and Biotechnology, Ufa University of Science and Technology, ul. Zaki Validi, 32, 450076 Ufa, Russia;
| | - Guzel Burkhanova
- Institute of Biochemistry and Genetics, pr. Oktyabrya, 71, 450054 Ufa, Russia; (G.B.); (E.Z.); (E.C.)
| | - Ninel Yalouskaya
- Institute of Experimental Botany Named after V.F. Kuprevich, ul. Akademicheskaya, 27, 220072 Minsk, Belarus; (J.K.); (N.Y.); (K.R.)
| | - Katerina Rybinskaya
- Institute of Experimental Botany Named after V.F. Kuprevich, ul. Akademicheskaya, 27, 220072 Minsk, Belarus; (J.K.); (N.Y.); (K.R.)
| | - Evgenia Zaikina
- Institute of Biochemistry and Genetics, pr. Oktyabrya, 71, 450054 Ufa, Russia; (G.B.); (E.Z.); (E.C.)
| | - Ekaterina Cherepanova
- Institute of Biochemistry and Genetics, pr. Oktyabrya, 71, 450054 Ufa, Russia; (G.B.); (E.Z.); (E.C.)
| | - Kseniya Hileuskaya
- Institute of Chemistry of New Materials, The National Academy of Sciences of Belarus, 220141 Minsk, Belarus; (K.H.); (V.N.)
| | - Viktoryia Nikalaichuk
- Institute of Chemistry of New Materials, The National Academy of Sciences of Belarus, 220141 Minsk, Belarus; (K.H.); (V.N.)
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Kopecká R, Černý M. Xylem Sap Proteome Analysis Provides Insight into Root-Shoot Communication in Response to flg22. PLANTS (BASEL, SWITZERLAND) 2024; 13:1983. [PMID: 39065510 PMCID: PMC11281318 DOI: 10.3390/plants13141983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2024] [Revised: 07/17/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024]
Abstract
Xylem sap proteomics provides crucial insights into plant defense and root-to-shoot communication. This study highlights the sensitivity and reproducibility of xylem sap proteome analyses, using a single plant per sample to track over 3000 proteins in two model crop plants, Solanum tuberosum and Hordeum vulgare. By analyzing the flg22 response, we identified immune response components not detectable through root or shoot analyses. Notably, we discovered previously unknown elements of the plant immune system, including calcium/calmodulin-dependent kinases and G-type lectin receptor kinases. Despite similarities in the metabolic pathways identified in the xylem sap of both plants, the flg22 response differed significantly: S. tuberosum exhibited 78 differentially abundant proteins, whereas H. vulgare had over 450. However, an evolutionarily conserved overlap in the flg22 response proteins was evident, particularly in the CAZymes and lipid metabolism pathways, where lipid transfer proteins and lipases showed a similar response to flg22. Additionally, many proteins without conserved signal sequences for extracellular targeting were found, such as members of the HSP70 family. Interestingly, the HSP70 response to flg22 was specific to the xylem sap proteome, suggesting a unique regulatory role in the extracellular space similar to that reported in mammalians.
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Affiliation(s)
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
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Tominello-Ramirez CS, Muñoz Hoyos L, Oubounyt M, Stam R. Network analyses predict major regulators of resistance to early blight disease complex in tomato. BMC PLANT BIOLOGY 2024; 24:641. [PMID: 38971719 PMCID: PMC11227178 DOI: 10.1186/s12870-024-05366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 07/01/2024] [Indexed: 07/08/2024]
Abstract
BACKGROUND Early blight and brown leaf spot are often cited as the most problematic pathogens of tomato in many agricultural regions. Their causal agents are Alternaria spp., a genus of Ascomycota containing numerous necrotrophic pathogens. Breeding programs have yielded quantitatively resistant commercial cultivars, but fungicide application remains necessary to mitigate the yield losses. A major hindrance to resistance breeding is the complexity of the genetic determinants of resistance and susceptibility. In the absence of sufficiently resistant germplasm, we sequenced the transcriptomes of Heinz 1706 tomatoes treated with strongly virulent and weakly virulent isolates of Alternaria spp. 3 h post infection. We expanded existing functional gene annotations in tomato and using network statistics, we analyzed the transcriptional modules associated with defense and susceptibility. RESULTS The induced responses are very distinct. The weakly virulent isolate induced a defense response of calcium-signaling, hormone responses, and transcription factors. These defense-associated processes were found in a single transcriptional module alongside secondary metabolite biosynthesis genes, and other defense responses. Co-expression and gene regulatory networks independently predicted several D clade ethylene response factors to be early regulators of the defense transcriptional module, as well as other transcription factors both known and novel in pathogen defense, including several JA-associated genes. In contrast, the strongly virulent isolate elicited a much weaker response, and a separate transcriptional module bereft of hormone signaling. CONCLUSIONS Our findings have predicted major defense regulators and several targets for downstream functional analyses. Combined with our improved gene functional annotation, they suggest that defense is achieved through induction of Alternaria-specific immune pathways, and susceptibility is mediated by modulating hormone responses. The implication of multiple specific clade D ethylene response factors and upregulation of JA-associated genes suggests that host defense in this pathosystem involves ethylene response factors to modulate jasmonic acid signaling.
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Affiliation(s)
- Christopher S Tominello-Ramirez
- Department of Phytopathology and Crop Protection, Institute for Phytopathology, Christian Albrechts University, Kiel, Germany
- Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Lina Muñoz Hoyos
- Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Mhaned Oubounyt
- Institute for Computational Systems Biology, University of Hamburg, Hamburg, Germany
| | - Remco Stam
- Department of Phytopathology and Crop Protection, Institute for Phytopathology, Christian Albrechts University, Kiel, Germany.
- Phytopathology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany.
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Liu JJ, Sniezko RA, Houston S, Krakowski J, Alger G, Benowicz A, Sissons R, Zamany A, Williams H, Kegley A, Rancourt B. Genome-Wide Association Study Reveals Polygenic Architecture for Limber Pine Quantitative Disease Resistance to White Pine Blister Rust. PHYTOPATHOLOGY 2024; 114:1626-1636. [PMID: 38489164 DOI: 10.1094/phyto-09-23-0338-r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
Development of durable resistance effective against a broad range of pathotypes is crucial for restoration of pathogen-damaged ecosystems. This study dissected the complex genetic architecture for limber pine quantitative disease resistance (QDR) to Cronartium ribicola using a genome-wide association study. Eighteen-month-old seedlings were inoculated for resistance screening under controlled conditions. Disease development was quantitatively assessed for QDR-related traits over 4 years postinoculation. To reveal the genomic architecture contributing to QDR-related traits, a set of genes related to disease resistance with genome-wide distribution was selected for targeted sequencing for genotyping of single-nucleotide polymorphisms (SNPs). The genome-wide association study revealed a set of SNPs significantly associated with quantitative traits for limber pine QDR to white pine blister rust, including number of needle spots and stem cankers, as well as survival 4 years postinoculation. The peaks of marker-trait associations displayed a polygenic pattern, with genomic regions as potential resistant quantitative trait loci, distributed over 10 of the 12 linkage groups (LGs) of Pinus. None of them was linked to the Cr4-controlled major gene resistance previously mapped on LG08. Both normal canker and bole infection were mapped on LG05, and the associated SNPs explained their phenotypic variance up to 52%, tagging a major resistant quantitative trait locus. Candidate genes containing phenotypically associated SNPs encoded putative nucleotide-binding site leucine-rich repeat proteins, leucine-rich repeat-receptor-like kinase, cytochrome P450 superfamily protein, heat shock cognate protein 70, glutamate receptor, RNA-binding family protein, and unknown protein. The confirmation of resistant quantitative trait loci broadens the genetic pool of limber pine resistance germplasm for resistance breeding.
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Affiliation(s)
- Jun-Jun Liu
- Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
| | - Richard A Sniezko
- U.S. Department of Agriculture Forest Service, Dorena Genetic Resource Center, 34963 Shoreview Drive, Cottage Grove, OR 97424, U.S.A
| | - Sydney Houston
- Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
| | - Jodie Krakowski
- Independent Consultant, Box 774, Coleman, AB, T0K 0M0, Canada
| | - Genoa Alger
- Parks Canada, Waterton Lakes National Park, Alberta, T0K 2M0, Canada
| | - Andy Benowicz
- Alberta Forestry and Parks, Government of Alberta, Edmonton, T6H 5T6, Canada
| | - Robert Sissons
- Parks Canada, Waterton Lakes National Park, Alberta, T0K 2M0, Canada
| | - Arezoo Zamany
- Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
| | - Holly Williams
- Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
| | - Angelia Kegley
- U.S. Department of Agriculture Forest Service, Dorena Genetic Resource Center, 34963 Shoreview Drive, Cottage Grove, OR 97424, U.S.A
| | - Benjamin Rancourt
- Natural Resources Canada, Canadian Forest Service, Pacific Forestry Centre, 506 West Burnside Road, Victoria, BC V8Z 1M5, Canada
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Wang Z, Zhang W, Zhou Y, Zhang Q, Kulkarni KP, Melmaiee K, Tian Y, Dong M, Gao Z, Su Y, Yu H, Xu G, Li Y, He H, Liu Q, Sun H. Genetic and epigenetic signatures for improved breeding of cultivated blueberry. HORTICULTURE RESEARCH 2024; 11:uhae138. [PMID: 38988623 PMCID: PMC11233858 DOI: 10.1093/hr/uhae138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 05/05/2024] [Indexed: 07/12/2024]
Abstract
Blueberry belongs to the Vaccinium genus and is a highly popular fruit crop with significant economic importance. It was not until the early twentieth century that they began to be domesticated through extensive interspecific hybridization. Here, we collected 220 Vaccinium accessions from various geographical locations, including 154 from the United States, 14 from China, eight from Australia, and 29 from Europe and other countries, comprising 164 Vaccinium corymbosum, 15 Vaccinium ashei, 10 lowbush blueberries, seven half-high blueberries, and others. We present the whole-genome variation map of 220 accessions and reconstructed the hundred-year molecular history of interspecific hybridization of blueberry. We focused on the two major blueberry subgroups, the northern highbush blueberry (NHB) and southern highbush blueberry (SHB) and identified candidate genes that contribute to their distinct traits in climate adaptability and fruit quality. Our analysis unveiled the role of gene introgression from Vaccinium darrowii and V. ashei into SHB in driving the differentiation between SHB and NHB, potentially facilitating SHB's adaptation to subtropical environments. Assisted by genome-wide association studies, our analysis suggested VcTBL44 as a pivotal gene regulator governing fruit firmness in SHB. Additionally, we conducted whole-genome bisulfite sequencing on nine NHB and 12 SHB cultivars, and characterized regions that are differentially methylated between the two subgroups. In particular, we discovered that the β-alanine metabolic pathway genes were enriched for DNA methylation changes. Our study provides high-quality genetic and epigenetic variation maps for blueberry, which offer valuable insights and resources for future blueberry breeding.
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Affiliation(s)
- Zejia Wang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Wanchen Zhang
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Yangyan Zhou
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Qiyan Zhang
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Krishnanand P Kulkarni
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901, USA
| | - Kalpalatha Melmaiee
- Department of Agriculture and Natural Resources, Delaware State University, Dover, DE 19901, USA
| | - Youwen Tian
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Mei Dong
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Zhaoxu Gao
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Yanning Su
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Hong Yu
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing 210014, China
| | - Guohui Xu
- College of Life and Health, Dalian University, Dalian 116622, China
| | - Yadong Li
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
| | - Hang He
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Qikun Liu
- State Key Laboratory of Protein and Plant Gene Research, School of Advanced Agricultural Sciences, Peking University, No.5 Yiheyuan Road, Haidian District, Beijing 100871, China
| | - Haiyue Sun
- Jilin Provincial Laboratory of Crop Germplasm Resources, College of Horticulture, Jilin Agricultural University, No. 2888 Xincheng Street, Economic Development District, Changchun 130118, China
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10
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Lin X, Yin J, Wang Y, Yao J, Li QQ, Latzel V, Bossdorf O, Zhang YY. Environment-induced heritable variations are common in Arabidopsis thaliana. Nat Commun 2024; 15:4615. [PMID: 38816460 PMCID: PMC11139905 DOI: 10.1038/s41467-024-49024-3] [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: 10/11/2023] [Accepted: 05/17/2024] [Indexed: 06/01/2024] Open
Abstract
Parental or ancestral environments can induce heritable phenotypic changes, but whether such environment-induced heritable changes are a common phenomenon remains unexplored. Here, we subject 14 genotypes of Arabidopsis thaliana to 10 different environmental treatments and observe phenotypic and genome-wide gene expression changes over four successive generations. We find that all treatments caused heritable phenotypic and gene expression changes, with a substantial proportion stably transmitted over all observed generations. Intriguingly, the susceptibility of a genotype to environmental inductions could be predicted based on the transposon abundance in the genome. Our study thus challenges the classic view that the environment only participates in the selection of heritable variation and suggests that the environment can play a significant role in generating of heritable variations.
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Affiliation(s)
- Xiaohe Lin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Junjie Yin
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Yifan Wang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Jing Yao
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
| | - Qingshun Q Li
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China
- Biomedical Sciences, College of Dental Medicine, Western University of Health Sciences, Pomona, CA, USA
| | - Vit Latzel
- Institute of Botany of the CAS, Zamek 1, 252 43, Pruhonice, Czech Republic
| | - Oliver Bossdorf
- Institute of Evolution & Ecology, University of Tübingen, Auf der Morgenstelle 5, 72076, Tübingen, Germany
| | - Yuan-Ye Zhang
- Key Laboratory of the Ministry of Education for Coastal and Wetland Ecosystems, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian, China.
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11
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Saadaoui M, Faize M, Rifai A, Tayeb K, Omri Ben Youssef N, Kharrat M, Roeckel-Drevet P, Chaar H, Venisse JS. Evaluation of Tunisian wheat endophytes as plant growth promoting bacteria and biological control agents against Fusarium culmorum. PLoS One 2024; 19:e0300791. [PMID: 38758965 PMCID: PMC11101125 DOI: 10.1371/journal.pone.0300791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 03/05/2024] [Indexed: 05/19/2024] Open
Abstract
Plant growth-promoting rhizobacteria (PGPR) applications have emerged as an ideal substitute for synthetic chemicals by their ability to improve plant nutrition and resistance against pathogens. In this study, we isolated fourteen root endophytes from healthy wheat roots cultivated in Tunisia. The isolates were identified based from their 16S rRNA gene sequences. They belonged to Bacillota and Pseudomonadota taxa. Fourteen strains were tested for their growth-promoting and defense-eliciting potentials on durum wheat under greenhouse conditions, and for their in vitro biocontrol power against Fusarium culmorum, an ascomycete responsible for seedling blight, foot and root rot, and head blight diseases of wheat. We found that all the strains improved shoot and/or root biomass accumulation, with Bacillus mojavensis, Paenibacillus peoriae and Variovorax paradoxus showing the strongest promoting effects. These physiological effects were correlated with the plant growth-promoting traits of the bacterial endophytes, which produced indole-related compounds, ammonia, and hydrogen cyanide (HCN), and solubilized phosphate and zinc. Likewise, plant defense accumulations were modulated lastingly and systematically in roots and leaves by all the strains. Testing in vitro antagonism against F. culmorum revealed an inhibition activity exceeding 40% for five strains: Bacillus cereus, Paenibacillus peoriae, Paenibacillus polymyxa, Pantoae agglomerans, and Pseudomonas aeruginosa. These strains exhibited significant inhibitory effects on F. culmorum mycelia growth, sporulation, and/or macroconidia germination. P. peoriae performed best, with total inhibition of sporulation and macroconidia germination. These finding highlight the effectiveness of root bacterial endophytes in promoting plant growth and resistance, and in controlling phytopathogens such as F. culmorum. This is the first report identifying 14 bacterial candidates as potential agents for the control of F. culmorum, of which Paenibacillus peoriae and/or its intracellular metabolites have potential for development as biopesticides.
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Affiliation(s)
- Mouadh Saadaoui
- Université Clermont Auvergne, INRAE, PIAF, Clermont-Ferrand, France
- Université de Tunis El Manar, Campus Universitaire Farhat Hached, Tunis, Tunisia
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
| | - Mohamed Faize
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Aicha Rifai
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Koussa Tayeb
- Laboratory of Plant Biotechnology, Ecology and Ecosystem Valorization CNRST-URL10, Faculty of Sciences, University Chouaib Doukkali, El Jadida, Morocco
| | - Noura Omri Ben Youssef
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
- National Institute of Agronomy of Tunisia, Tunis, Tunisia
| | - Mohamed Kharrat
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
| | | | - Hatem Chaar
- Field Crops Laboratory, National Institute for Agricultural Research of Tunisia, Tunisia, Tunisia
- National Institute of Agronomy of Tunisia, Tunis, Tunisia
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12
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Zhang FJ, Li ZY, Zhang DE, Ma N, Wang YX, Zhang TT, Zhao Q, Zhang Z, You CX, Lu XY. Identification of Hsp20 gene family in Malus domestica and functional characterization of Hsp20 class I gene MdHsp18.2b. PHYSIOLOGIA PLANTARUM 2024; 176:e14288. [PMID: 38644531 DOI: 10.1111/ppl.14288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 03/23/2024] [Indexed: 04/23/2024]
Abstract
Heat shock protein 20 (Hsp20) is a small molecule heat shock protein that plays an important role in plant growth, development, and stress resistance. Little is known about the function of Hsp20 family genes in apple (Malus domestica). Here, we performed a genome-wide analysis of the apple Hsp20 gene family, and a total of 49 Hsp20s genes were identified from the apple genome. Phylogenetic analysis revealed that the 49 genes were divided into 11 subfamilies, and MdHsp18.2b, a member located in the CI branch, was selected as a representative member for functional characterization. Treatment with NaCl and Botryosphaeria dothidea (B. dothidea), the causal agent of apple ring rot disease, significantly induced MdHsp18.2b transcription level. Further analysis revealed that overexpressing MdHsp18.2b reduced the resistance to salt stress but enhanced the resistance to B. dothidea infection in apple calli. Moreover, MdHsp18.2b positively regulated anthocyanin accumulation in apple calli. Physiology assays revealed that MdHsp18.2b promoted H2O2 production, even in the absence of stress factors, which might contribute to its functions in response to NaCl and B. dothidea infection. Hsps usually function as homo- or heterooligomers, and we found that MdHsp18.2b could form a heterodimer with MdHsp17.9a and MdHsp17.5, two members from the same branch with MdHsp18.2b in the phylogenetic tree. Therefore, we identified 49 Hsp20s genes from the apple genome and found that MdHsp18.2b was involved in regulating plant resistance to salt stress and B. dothidea infection, as well as in regulating anthocyanin accumulation in apple calli.
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Affiliation(s)
- Fu-Jun Zhang
- Department of Horticulture, College of Agriculture, Key Laboratory of Special Fruits & Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Zhao-Yang Li
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - De-En Zhang
- Department of Horticulture, College of Agriculture, Key Laboratory of Special Fruits & Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
| | - Ning Ma
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Yong-Xu Wang
- Department of Horticulture, College of Agriculture, Key Laboratory of Special Fruits & Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Ting-Ting Zhang
- Department of Horticulture, College of Agriculture, Key Laboratory of Special Fruits & Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Qiang Zhao
- College of Horticulture, Qingdao Agricultural University, Qingdao, Shandong, China
| | - Zhenlu Zhang
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Chun-Xiang You
- College of Horticultural Science and Engineering, National Key Laboratory of Wheat Improvement, Shandong Agricultural University, Tai'an, Shandong, China
| | - Xiao-Yan Lu
- Department of Horticulture, College of Agriculture, Key Laboratory of Special Fruits & Vegetables Cultivation Physiology and Germplasm Resources Utilization of Xinjiang Production and Construction Group, Shihezi University, Shihezi, Xinjiang, China
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13
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Pan X, Zheng Y, Lei K, Tao W, Zhou N. Systematic analysis of Heat Shock Protein 70 (HSP70) gene family in radish and potential roles in stress tolerance. BMC PLANT BIOLOGY 2024; 24:2. [PMID: 38163888 PMCID: PMC10759535 DOI: 10.1186/s12870-023-04653-6] [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: 07/10/2023] [Accepted: 11/30/2023] [Indexed: 01/03/2024]
Abstract
The 70 kD heat shock proteins (HSP70s) represent a class of molecular chaperones that are widely distributed in all kingdoms of life, which play important biological roles in plant growth, development, and stress resistance. However, this family has not been systematically characterized in radish (Raphanus sativus L.). In this study, we identified 34 RsHSP70 genes unevenly distributed within nine chromosomes of R. sativus. Phylogenetic and multiple sequence alignment analyses classified the RsHSP70 proteins into six distinct groups (Group A-F). The characteristics of gene structures, motif distributions, and corresponding cellular compartments were more similar in closely linked groups. Duplication analysis revealed that segmental duplication was the major driving force for the expansion of RsHSP70s in radish, particularly in Group C. Synteny analysis identified eight paralogs (Rs-Rs) in the radish genome and 19 orthologs (Rs-At) between radish and Arabidopsis, and 23 orthologs (Rs-Br) between radish and Chinese cabbage. RNA-seq analysis showed that the expression change of some RsHSP70s were related to responses to heat, drought, cadmium, chilling, and salt stresses and Plasmodiophora brassicae infection, and the expression patterns of these RsHSP70s were significantly different among 14 tissues. Furthermore, we targeted a candidate gene, RsHSP70-23, the product of which is localized in the cytoplasm and involved in the responses to certain abiotic stresses and P. brassicae infection. These findings provide a reference for further molecular studies to improve yield and stress tolerance of radish.
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Affiliation(s)
- Xiaoxue Pan
- Biotechnology Research Institute, Chongqing Academy of Agricultural Sciences/Chongqing Key Laboratory of Adversity Agriculture, Chongqing, 401329, China
- Key Laboratory of Evaluation and Utilization for Special Crops Germplasm Resources in the Southwest Mountains, Ministry of Agriculture and Rural Affairs (Co-Construction By Ministry and Province), Chongqing, 401329, China
| | - Yang Zheng
- Vegetable and Flower Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China
- Key Laboratory of Evaluation and Utilization for Special Crops Germplasm Resources in the Southwest Mountains, Ministry of Agriculture and Rural Affairs (Co-Construction By Ministry and Province), Chongqing, 401329, China
| | - Kairong Lei
- Biotechnology Research Institute, Chongqing Academy of Agricultural Sciences/Chongqing Key Laboratory of Adversity Agriculture, Chongqing, 401329, China
- Key Laboratory of Evaluation and Utilization for Special Crops Germplasm Resources in the Southwest Mountains, Ministry of Agriculture and Rural Affairs (Co-Construction By Ministry and Province), Chongqing, 401329, China
| | - Weilin Tao
- Vegetable and Flower Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China
| | - Na Zhou
- Vegetable and Flower Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing, 401329, China.
- Key Laboratory of Evaluation and Utilization for Special Crops Germplasm Resources in the Southwest Mountains, Ministry of Agriculture and Rural Affairs (Co-Construction By Ministry and Province), Chongqing, 401329, China.
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14
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Guo R, Gregory BD. PELOTA and HBS1 suppress co-translational messenger RNA decay in Arabidopsis. PLANT DIRECT 2023; 7:e553. [PMID: 38149303 PMCID: PMC10751093 DOI: 10.1002/pld3.553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/28/2023]
Abstract
Various messenger RNA (mRNA) decay mechanisms play major roles in controlling mRNA quality and quantity in eukaryotic organisms under different conditions. While it is known that the recently discovered co-translational mRNA decay (CTRD), the mechanism that allows mRNAs to be degraded while still being actively translated, is prevalent in yeast, humans, and various angiosperms, the regulation of this decay mechanism is less well studied. Moreover, it is still unclear whether this decay mechanism plays any role in the regulation of specific physiological processes in eukaryotes. Here, by re-analyzing the publicly available polysome profiling or ribosome footprinting and degradome sequencing datasets, we discovered that highly translated mRNAs tend to have lower co-translational decay levels. Based on this finding, we then identified Pelota and Hbs1, the translation-related ribosome rescue factors, as suppressors of co-translational mRNA decay in Arabidopsis. Furthermore, we found that Pelota and Hbs1 null mutants have lower germination rates compared to the wild-type plants, implying that proper regulation of co-translational mRNA decay is essential for normal developmental processes. In total, our study provides further insights into the regulation of CTRD in Arabidopsis and demonstrates that this decay mechanism does play important roles in Arabidopsis physiological processes.
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Affiliation(s)
- Rong Guo
- Department of BiologyUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - Brian D. Gregory
- Department of BiologyUniversity of PennsylvaniaPhiladelphiaPAUSA
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15
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Chen YJ, Cheng SY, Liu CH, Tsai WC, Wu HH, Huang MD. Exploration of the truncated cytosolic Hsp70 in plants - unveiling the diverse T1 lineage and the conserved T2 lineage. FRONTIERS IN PLANT SCIENCE 2023; 14:1279540. [PMID: 38034583 PMCID: PMC10687569 DOI: 10.3389/fpls.2023.1279540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 10/18/2023] [Indexed: 12/02/2023]
Abstract
The 70-kDa heat shock proteins (Hsp70s) are chaperone proteins involved in protein folding processes. Truncated Hsp70 (Hsp70T) refers to the variant lacking a conserved C-terminal motif, which is crucial for co-chaperone interactions or protein retention. Despite their significance, the characteristics of Hsp70Ts in plants remain largely unexplored. In this study, we performed a comprehensive genome-wide analysis of 192 sequenced plant and green algae genomes to investigate the distribution and features of Hsp70Ts. Our findings unveil the widespread occurrence of Hsp70Ts across all four Hsp70 forms, including cytosolic, endoplasmic reticulum, mitochondrial, and chloroplast Hsp70s, with cytosolic Hsp70T being the most prevalent and abundant subtype. Cytosolic Hsp70T is characterized by two distinct lineages, referred to as T1 and T2. Among the investigated plant and green algae species, T1 genes were identified in approximately 60% of cases, showcasing a variable gene count ranging from one to several dozens. In contrast, T2 genes were prevalent across the majority of plant genomes, usually occurring in fewer than five gene copies per species. Sequence analysis highlights that the putative T1 proteins exhibit higher similarity to full-length cytosolic Hsp70s in comparison to T2 proteins. Intriguingly, the T2 lineage demonstrates a higher level of conservation within their protein sequences, whereas the T1 lineage presents a diverse range in the C-terminal and SBDα region, leading to categorization into four distinct subtypes. Furthermore, we have observed that T1-rich species characterized by the possession of 15 or more T1 genes exhibit an expansion of T1 genes into tandem gene clusters. The T1 gene clusters identified within the Laurales order display synteny with clusters found in a species of the Chloranthales order and another species within basal angiosperms, suggesting a conserved evolutionary relationship of T1 gene clusters among these plants. Additionally, T2 genes demonstrate distinct expression patterns in seeds and under heat stress, implying their potential roles in seed development and stress response.
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Affiliation(s)
- Yi-Jing Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Sou-Yu Cheng
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Cheng-Han Liu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Wen-Chieh Tsai
- Institute of Tropical Plant Sciences and Microbiology, National Cheng Kung University, Tainan, Taiwan
| | - Hsin-Hsin Wu
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Ming-Der Huang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
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16
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Bai S, Long J, Cui Y, Wang Z, Liu C, Liu F, Wang Z, Li Q. Regulation of hormone pathways in wheat infested by Blumeria graminis f. sp. tritici. BMC PLANT BIOLOGY 2023; 23:554. [PMID: 37940874 PMCID: PMC10634187 DOI: 10.1186/s12870-023-04569-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 10/27/2023] [Indexed: 11/10/2023]
Abstract
BACKGROUND Wheat powdery mildew is an obligate biotrophic pathogen infecting wheat, which can pose a serious threat to wheat production. In this study, transcriptome sequencing was carried out on wheat leaves infected by Blumeria graminis f. sp. tritici from 0 h to 7 d. RESULTS KEGG and GO enrichment analysis revealed that the upstream biosynthetic pathways and downstream signal transduction pathways of salicylic acid, jasmonic acid, and ethylene were highly enriched at all infection periods. Trend analysis showed that the expressions of hormone-related genes were significantly expressed from 1 to 4 d, suggesting that 1 d-4 d is the main period in which hormones play a defensive role. During this period of time, the salicylic acid pathway was up-regulated, while the jasmonic acid and ethylene pathways were suppressed. Meanwhile, four key modules and 11 hub genes were identified, most of which were hormone related. CONCLUSION This study improves the understanding of the dynamical responses of wheat to Blumeria graminis f. sp. tritici infestation at the transcriptional level and provides a reference for screening core genes regulated by hormones.
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Affiliation(s)
- Shuangyu Bai
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Jiaohui Long
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Yuanyuan Cui
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Zhaoyi Wang
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Caixia Liu
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Fenglou Liu
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Zhangjun Wang
- School of Agriculture, Ningxia University, Yinchuan, 750021, China
| | - Qingfeng Li
- School of Agriculture, Ningxia University, Yinchuan, 750021, China.
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17
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Zhang Z, Sun W, Wen L, Liu Y, Guo X, Liu Y, Yao C, Xue Q, Sun Z, Wang Z, Zhang Y. Dynamic gene regulatory networks improving spike fertility through regulation of floret primordia fate in wheat. PLANT, CELL & ENVIRONMENT 2023; 46:3628-3643. [PMID: 37485926 DOI: 10.1111/pce.14672] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 07/09/2023] [Accepted: 07/11/2023] [Indexed: 07/25/2023]
Abstract
The developmental process of spike is critical for spike fertility through affecting floret primordia fate in wheat; however, the genetic regulation of this dynamic and complex developmental process remains unclear. Here, we conducted a high temporal-resolution analysis of spike transcriptomes and monitored the number and morphology of floret primordia within spike. The development of all floret primordia in a spike was clearly separated into three distinct phases: differentiation, pre-dimorphism and dimorphism. Notably, we identified that floret primordia with meiosis ability at the pre-dimorphism phase usually develop into fertile floret primordia in the next dimorphism phase. Compared to control, increasing plant space treatment achieved the maximum increasement range (i.e., 50%) in number of fertile florets by accelerating spike development. The process of spike fertility improvement was directed by a continuous and dynamic regulatory network involved in transcription factor and genes interaction. This was based on the coordination of genes related to heat shock protein and jasmonic acid biosynthesis during differentiation phase, and genes related to lignin, anthocyanin and chlorophyll biosynthesis during dimorphism phase. The multi-dimensional association with high temporal-resolution approach reported here allows rapid identification of genetic resource for future breeding studies to realise the maximum spike fertility potential in more cereal crops.
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Affiliation(s)
- Zhen Zhang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- College of Biological Sciences, China Agricultural University, Beijing, China
| | - Wan Sun
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Liangyun Wen
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Yaqun Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Xiaolei Guo
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Ying Liu
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Chunsheng Yao
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
| | - Qingwu Xue
- Texas A&M AgriLife Research and Extension Center at Amarillo, Amarillo, Texas, USA
| | - Zhencai Sun
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- Engineering Technology Research Center for Agriculture in Low Plain Areas, Hebei Province, China
| | - Zhimin Wang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- Engineering Technology Research Center for Agriculture in Low Plain Areas, Hebei Province, China
| | - Yinghua Zhang
- College of Agronomy and Biotechnology, China Agricultural University, Beijing, China
- Engineering Technology Research Center for Agriculture in Low Plain Areas, Hebei Province, China
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18
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Lantican DV, Nocum JDL, Manohar ANC, Mendoza JVS, Gardoce RR, Lachica GC, Gueco LS, Dela Cueva FM. Comparative RNA-seq analysis of resistant and susceptible banana genotypes reveals molecular mechanisms in response to banana bunchy top virus (BBTV) infection. Sci Rep 2023; 13:18719. [PMID: 37907581 PMCID: PMC10618458 DOI: 10.1038/s41598-023-45937-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 10/25/2023] [Indexed: 11/02/2023] Open
Abstract
Bananas hold significant economic importance as an agricultural commodity, serving as a primary livelihood source, a favorite fruit, and a staple crop in various regions across the world. However, Banana bunchy top disease (BBTD), which is caused by banana bunchy top virus (BBTV), poses a considerable threat to banana cultivation. To understand the resistance mechanism and the interplay of host suitability factors in the presence of BBTV, we conducted RNA-seq-based comparative transcriptomics analysis on mock-inoculated and BBTV-inoculated samples from resistant (wild Musa balbisiana) and susceptible (Musa acuminata 'Lakatan') genotypes. We observed common patterns of expression for 62 differentially expressed genes (DEGs) in both genotypes, which represent the typical defense response of bananas to BBTV. Furthermore, we identified 99 DEGs exclusive to the 'Lakatan' banana cultivar, offering insights into the host factors and susceptibility mechanisms that facilitate successful BBTV infection. In parallel, we identified 151 DEGs unique to the wild M. balbisiana, shedding light on the multifaceted mechanisms of BBTV resistance, involving processes such as secondary metabolite biosynthesis, cell wall modification, and pathogen perception. Notably, our validation efforts via RT-qPCR confirmed the up-regulation of the glucuronoxylan 4-O-methyltransferase gene (14.28 fold-change increase), implicated in xylan modification and degradation. Furthermore, our experiments highlighted the potential recruitment of host's substrate adaptor ADO (30.31 fold-change increase) by BBTV, which may play a role in enhancing banana susceptibility to the viral pathogen. The DEGs identified in this work can be used as basis in designing associated gene markers for the precise integration of resistance genes in marker-assisted breeding programs. Furthermore, the findings can be applied to develop genome-edited banana cultivars targeting the resistance and susceptibility genes, thus developing novel cultivars that are resilient to important diseases.
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Affiliation(s)
- Darlon V Lantican
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines.
| | - Jen Daine L Nocum
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Anand Noel C Manohar
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Jay-Vee S Mendoza
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Roanne R Gardoce
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Grace C Lachica
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
- Philippine Genome Center - Program for Agriculture, Livestock, Fisheries, Forestry, Office of the Vice Chancellor for Research and Extension, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Lavernee S Gueco
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
| | - Fe M Dela Cueva
- Institute of Plant Breeding, College of Agriculture and Food Science, University of the Philippines Los Baños, College, 4031, Laguna, Philippines
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19
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Muthusamy SK, Pushpitha P, Makeshkumar T, Sheela MN. Genome-wide identification and expression analysis of Hsp70 family genes in Cassava ( Manihot esculenta Crantz). 3 Biotech 2023; 13:341. [PMID: 37705861 PMCID: PMC10495308 DOI: 10.1007/s13205-023-03760-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 08/30/2023] [Indexed: 09/15/2023] Open
Abstract
Hsp70 proteins function as molecular chaperones, regulating various cellular processes in plants. In this study, a genome-wide analysis led to the identification of 22 Hsp70 (MeHsp70) genes in cassava. Phylogenetic relationship studies with other Malpighiales genomes (Populus trichocarpa, Ricinus communis and Salix purpurea) classified MeHsp70 proteins into eight groups (Ia, Ib, Ic, Id, Ie, If, IIa and IIb). Promoter analysis of MeHsp70 genes revealed the presence of tissue-specific, light, biotic and abiotic stress-responsive cis-regulatory elements showing their functional importance in cassava. Meta-analysis of publically available RNA-seq transcriptome datasets showed constitutive, tissue-specific, biotic and abiotic stress-specific expression patterns among MeHsp70s in cassava. Among 22 Hsp70, six MeHsp70s viz., MecHsp70-3, MecHsp70-6, MeBiP-1, MeBiP-2, MeBiP-3 and MecpHsp70-2 displayed constitutive expression, while three MecHsp70s were induced under both drought and cold stress conditions. Five MeHsp70s, MecHsp70-7, MecHsp70-11, MecHsp70-12, MecHsp70-13, and MecHsp70-14 were induced under drought stress conditions. We predicted that 19 MeHsp70 genes are under the regulation of 24 miRNAs. This comprehensive genome-wide analysis of the Hsp70 gene family in cassava provided valuable insights into their functional roles and identified various potential Hsp70 genes associated with stress tolerance and adaptation to environmental stimuli. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03760-3.
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Affiliation(s)
- Senthilkumar K. Muthusamy
- Division of Crop Improvement, ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, India
| | - P. Pushpitha
- Division of Crop Improvement, ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, India
| | - T. Makeshkumar
- Division of Crop Protection, ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, India
| | - M. N. Sheela
- Division of Crop Improvement, ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram, India
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20
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Diogo-Jr R, de Resende Von Pinho EV, Pinto RT, Zhang L, Condori-Apfata JA, Pereira PA, Vilela DR. Maize heat shock proteins-prospection, validation, categorization and in silico analysis of the different ZmHSP families. STRESS BIOLOGY 2023; 3:37. [PMID: 37981586 PMCID: PMC10482818 DOI: 10.1007/s44154-023-00104-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 07/05/2023] [Indexed: 11/21/2023]
Abstract
Among the plant molecular mechanisms capable of effectively mitigating the effects of adverse weather conditions, the heat shock proteins (HSPs), a group of chaperones with multiple functions, stand out. At a time of full progress on the omic sciences, they look very promising in the genetic engineering field, especially in order to conceive superior genotypes, potentially tolerant to abiotic stresses (AbSts). Recently, some works concerning certain families of maize HSPs (ZmHSPs) were published. However, there was still a lack of a study that, with a high degree of criteria, would fully conglomerate them. Using distinct but complementary strategies, we have prospected as many ZmHSPs candidates as possible, gathering more than a thousand accessions. After detailed data mining, we accounted for 182 validated ones, belonging to seven families, which were subcategorized into classes with potential for functional parity. In them, we identified dozens of motifs with some degree of similarity with proteins from different kingdoms, which may help explain some of their still poorly understood means of action. Through in silico and in vitro approaches, we compared their expression levels after controlled exposure to several AbSts' sources, applied at diverse tissues, on varied phenological stages. Based on gene ontology concepts, we still analyzed them from different perspectives of term enrichment. We have also searched, in model plants and close species, for potentially orthologous genes. With all these new insights, which culminated in a plentiful supplementary material, rich in tables, we aim to constitute a fertile consultation source for those maize researchers attracted by these interesting stress proteins.
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Affiliation(s)
- Rubens Diogo-Jr
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, (47907), USA.
- Department of Agriculture, Federal University of Lavras (UFLA), Lavras, MG, (37200-900), Brazil.
| | | | - Renan Terassi Pinto
- Faculty of Philosophy and Sciences at Ribeirao Preto, University of Sao Paulo (USP), Ribeirao Preto, SP, (14040-901), Brazil
| | - Lingrui Zhang
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, (47907), USA
| | - Jorge Alberto Condori-Apfata
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, (47907), USA
- Faculty of Engineering and Agricultural Sciences, Universidad Nacional Toribio Rodriguez de Mendoza de Amazonas (UNTRM), Chachapoyas, AM, (01001), Peru
| | - Paula Andrade Pereira
- Department of Agriculture, Federal University of Lavras (UFLA), Lavras, MG, (37200-900), Brazil
| | - Danielle Rezende Vilela
- Department of Agriculture, Federal University of Lavras (UFLA), Lavras, MG, (37200-900), Brazil
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21
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Ham BK, Wang X, Toscano-Morales R, Lin J, Lucas WJ. Plasmodesmal endoplasmic reticulum proteins regulate intercellular trafficking of cucumber mosaic virus in Arabidopsis. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:4401-4414. [PMID: 37210666 PMCID: PMC10838158 DOI: 10.1093/jxb/erad190] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/17/2023] [Indexed: 05/22/2023]
Abstract
Plasmodesmata (PD) are plasma membrane-lined cytoplasmic nanochannels that mediate cell-to-cell communication across the cell wall. A range of proteins are embedded in the PD plasma membrane and endoplasmic reticulum (ER), and function in regulating PD-mediated symplasmic trafficking. However, knowledge of the nature and function of the ER-embedded proteins in the intercellular movement of non-cell-autonomous proteins is limited. Here, we report the functional characterization of two ER luminal proteins, AtBiP1/2, and two ER integral membrane proteins, AtERdj2A/B, which are located within the PD. These PD proteins were identified as interacting proteins with cucumber mosaic virus (CMV) movement protein (MP) in co-immunoprecipitation studies using an Arabidopsis-derived plasmodesmal-enriched cell wall protein preparation (PECP). The AtBiP1/2 PD location was confirmed by TEM-based immunolocalization, and their AtBiP1/2 signal peptides (SPs) function in PD targeting. In vitro/in vivo pull-down assays revealed the association between AtBiP1/2 and CMV MP, mediated by AtERdj2A, through the formation of an AtBiP1/2-AtERdj2-CMV MP complex within PD. The role of this complex in CMV infection was established, as systemic infection was retarded in bip1/bip2w and erdj2b mutants. Our findings provide a model for a mechanism by which the CMV MP mediates cell-to-cell trafficking of its viral ribonucleoprotein complex.
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Affiliation(s)
- Byung-Kook Ham
- Global Institute for Food Security (GIFS), University of Saskatchewan, 421 Downey Rd, Saskatoon, SK S7N 4L8, Canada
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK S7N 5E2, Canada
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA
| | - Xiaohua Wang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - Roberto Toscano-Morales
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA
| | - Jinxing Lin
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
| | - William J Lucas
- Department of Plant Biology, College of Biological Sciences, University of California, Davis, CA 95616, USA
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22
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Bělonožníková K, Černý M, Hýsková V, Synková H, Valcke R, Hodek O, Křížek T, Kavan D, Vaňková R, Dobrev P, Haisel D, Ryšlavá H. Casein as protein and hydrolysate: Biostimulant or nitrogen source for Nicotiana tabacum plants grown in vitro? PHYSIOLOGIA PLANTARUM 2023; 175:e13973. [PMID: 37402155 DOI: 10.1111/ppl.13973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 06/28/2023] [Accepted: 06/28/2023] [Indexed: 07/06/2023]
Abstract
In contrast to inorganic nitrogen (N) assimilation, the role of organic N forms, such as proteins and peptides, as sources of N and their impact on plant metabolism remains unclear. Simultaneously, organic biostimulants are used as priming agents to improve plant defense response. Here, we analysed the metabolic response of tobacco plants grown in vitro with casein hydrolysate or protein. As the sole source of N, casein hydrolysate enabled tobacco growth, while protein casein was used only to a limited extent. Free amino acids were detected in the roots of tobacco plants grown with protein casein but not in the plants grown with no source of N. Combining hydrolysate with inorganic N had beneficial effects on growth, root N uptake and protein content. The metabolism of casein-supplemented plants shifted to aromatic (Trp), branched-chain (Ile, Leu, Val) and basic (Arg, His, Lys) amino acids, suggesting their preferential uptake and/or alterations in their metabolic pathways. Complementarily, proteomic analysis of tobacco roots identified peptidase C1A and peptidase S10 families as potential key players in casein degradation and response to N starvation. Moreover, amidases were significantly upregulated, most likely for their role in ammonia release and impact on auxin synthesis. In phytohormonal analysis, both forms of casein influenced phenylacetic acid and cytokinin contents, suggesting a root system response to scarce N availability. In turn, metabolomics highlighted the stimulation of some plant defense mechanisms under such growth conditions, that is, the high concentrations of secondary metabolites (e.g., ferulic acid) and heat shock proteins.
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Affiliation(s)
- Kateřina Bělonožníková
- Department of Biochemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic
| | - Veronika Hýsková
- Department of Biochemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Helena Synková
- Institute of Experimental Botany, Czech Academy of Sciences, Praha 6, Czech Republic
| | - Roland Valcke
- Molecular and Physical Plant Physiology, Faculty of Sciences, Hasselt University, Diepenbeek, Belgium
| | - Ondřej Hodek
- Department of Analytical Chemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Tomáš Křížek
- Department of Analytical Chemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Daniel Kavan
- Department of Biochemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
| | - Radomíra Vaňková
- Institute of Experimental Botany, Czech Academy of Sciences, Praha 6, Czech Republic
| | - Petre Dobrev
- Institute of Experimental Botany, Czech Academy of Sciences, Praha 6, Czech Republic
| | - Daniel Haisel
- Institute of Experimental Botany, Czech Academy of Sciences, Praha 6, Czech Republic
| | - Helena Ryšlavá
- Department of Biochemistry, Faculty of Science, Charles University, Praha 2, Czech Republic
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23
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Zhang J, Xie Y, Zhang H, He C, Wang X, Cui Y, Heng Y, Lin Y, Gu R, Wang J, Fu J. Integrated Multi-Omics Reveals Significant Roles of Non-Additively Expressed Small RNAs in Heterosis for Maize Plant Height. Int J Mol Sci 2023; 24:ijms24119150. [PMID: 37298102 DOI: 10.3390/ijms24119150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 06/12/2023] Open
Abstract
Heterosis is a complex biological phenomenon regulated by genetic variations and epigenetic changes. However, the roles of small RNAs (sRNAs), an important epigenetic regulatory element, on plant heterosis are still poorly understood. Here, an integrative analysis was performed with sequencing data from multi-omics layers of maize hybrids and their two homologous parental lines to explore the potential underlying mechanisms of sRNAs in plant height (PH) heterosis. sRNAome analysis revealed that 59 (18.61%) microRNAs (miRNAs) and 64,534 (54.00%) 24-nt small interfering RNAs (siRNAs) clusters were non-additively expressed in hybrids. Transcriptome profiles showed that these non-additively expressed miRNAs regulated PH heterosis through activating genes involved in vegetative growth-related pathways while suppressing those related to reproductive and stress response pathways. DNA methylome profiles showed that non-additive methylation events were more likely to be induced by non-additively expressed siRNA clusters. Genes associated with low-parental expression (LPE) siRNAs and trans-chromosomal demethylation (TCdM) events were enriched in developmental processes as well as nutrients and energy metabolism, whereas genes associated with high-parental expression (HPE) siRNAs and trans-chromosomal methylation (TCM) events were gathered in stress response and organelle organization pathways. Our results provide insights into the expression and regulation patterns of sRNAs in hybrids and help to elucidate their potential targeting pathways contributing to PH heterosis.
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Affiliation(s)
- Jie Zhang
- Center of Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- Key Laboratory of Molecular Genetics, Guizhou Institute of Tobacco Science, Guiyang 550081, China
| | - Yuxin Xie
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Hongwei Zhang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Cheng He
- Department of Plant Pathology, Kansas State University, Manhattan, KS 66502, USA
| | - Xiaoli Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yu Cui
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yanfang Heng
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yingchao Lin
- Key Laboratory of Molecular Genetics, Guizhou Institute of Tobacco Science, Guiyang 550081, China
| | - Riliang Gu
- Center of Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Jianhua Wang
- Center of Seed Science and Technology, Beijing Innovation Center for Seed Technology (MOA), Beijing Key Laboratory of Crop Genetic Improvement, College of Agronomy and Biotechnology, China Agricultural University, Beijing 100193, China
| | - Junjie Fu
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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24
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Zhao F, Liu L, Du J, Zhao X, Song Y, Zhou H, Qiao Y. BAG6-A from Fragaria viridis pollen modulates gametophyte development in diploid strawberry. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2023; 330:111667. [PMID: 36858208 DOI: 10.1016/j.plantsci.2023.111667] [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: 01/04/2023] [Revised: 02/19/2023] [Accepted: 02/24/2023] [Indexed: 06/18/2023]
Abstract
Male and female gametophyte development processes are essential steps in the life cycles of all land plants. Here, we characterized a gene, FviBAG6-A, screened from the Fragaria viridis (2 n = 2x=14) pollen cDNA library and physically interacted with S-RNase. Ubiquitinated of Sa-RNase might be determined by the interaction of FviBAG6-A in the ubiquitin-proteasome system during fertilization. We found that overexpression of FviBAG6-A in Arabidopsis caused shorter silique length, and decreased silique number. Moreover, overexpression of FviBAG6-A in Fragaria vesca (2 n = 2x=14) led to a greatly reduced seed number, with nearly 80% of the seeds aborted. Analyses of paraffin sections and reactive oxygen species (ROS) content revealed that the majority of severe pollen defects were likely due to the early degradation of the tapetum and middle layer as a result of ROS accumulation and abnormal development of the uninucleate megaspore mother. Moreover, the FviBAG6-A interact with the E3 ligase SIZ1 and contribute to the SUMOylation of FviBAG6-A , which may be induced by the high level of ROS content, further promoting gametophyte abortion in strawberry transgenic lines. This study characterized the FviBAG6-A and reveals its novel function in gametophyte development.
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Affiliation(s)
- Fengli Zhao
- Laboratory of Fruit Crop Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Lifeng Liu
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Jianke Du
- Laboratory of Fruit Crop Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Xia Zhao
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Yanhong Song
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China
| | - Houcheng Zhou
- Zhengzhou Fruit Research Institute, Chinese Academy of Agricultural Sciences, Zhengzhou 450009, Henan, China.
| | - Yushan Qiao
- Laboratory of Fruit Crop Biotechnology, College of Horticulture, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China; Institute of Pomology, Jiangsu Academy of Agricultural Sciences/Jiangsu Key Laboratory for Horticultural Crop Genetic Improvement, Nanjing 210014, Jiangsu, China.
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25
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He Q, Zhang X, He M, Zhang X, Ma Y, Zhu Y, Dong J, Ying J, Wang Y, Liu L, Xu L. Genome-wide characterization of RsHSP70 gene family reveals positive role of RsHSP70-20 gene in heat stress response in radish (Raphanus sativus L.). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 199:107710. [PMID: 37087887 DOI: 10.1016/j.plaphy.2023.107710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/28/2023] [Accepted: 04/14/2023] [Indexed: 05/03/2023]
Abstract
Radish is an economical cool-season root vegetable crop worldwide. Heat shock protein 70 (HSP70) plays indispensable roles in plant growth, development and abiotic stress responses. Nevertheless, little information is available regarding the identification and functional characterization of HSP70 gene family in radish. Herein, a total of 34 RsHSP70 genes were identified at the radish genome level, among which nine and 25 RsHSP70s were classified into the HSP110/SSE and DnaK subfamilies, respectively. RNA-seq analysis revealed that some RsHSP70 genes had differential expression profile in radish leaf, root, stamen and pistil. A range of RsHSP70 genes exhibited differential expression under several abiotic stresses such as heat, salt and heavy metals. Intriguingly, the expression of four RsHSP70 genes (RsHSP70-7, RsHSP70-12, RsHSP70-20 and RsHSP70-22) was dramatically up-regulated under heat stress (HS). RT-qPCR and transient LUC reporter assay indicated that both the expression and promoter activity of RsHSP70-20 was strongly induced by HS. Notably, overexpression of RsHSP70-20 significantly enhanced thermotolerance by decreasing reactive oxygen species and promoting proline accumulation in radish, whereas its knock-down plants exhibited increased thermosensitivity, indicating that RsHSP70-20 positively regulate HS response in radish. These results would provide valuable information to decipher the molecular basis of RsHSP70-mediated thermotolerance in radish.
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Affiliation(s)
- Qing He
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Xinyu Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Min He
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Xiaoli Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yingfei Ma
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yuelin Zhu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Junhui Dong
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Jiali Ying
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Yan Wang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China
| | - Liwang Liu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China; College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, 225009, PR China
| | - Liang Xu
- National Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Key Laboratory of Horticultural Crop Biology and Genetic Improvement (East China) of MOAR, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, PR China.
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26
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Yang L, Zhou Y, Wang S, Xu Y, Ostendorp S, Tomkins M, Kehr J, Morris RJ, Kragler F. Noncell-autonomous HSC70.1 chaperone displays homeostatic feedback regulation by binding its own mRNA. THE NEW PHYTOLOGIST 2023; 237:2404-2421. [PMID: 36564968 DOI: 10.1111/nph.18703] [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: 11/04/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
The HSC70/HSP70 family of heat shock proteins are evolutionarily conserved chaperones involved in protein folding, protein transport, and RNA binding. Arabidopsis HSC70 chaperones are thought to act as housekeeping chaperones and as such are involved in many growth-related pathways. Whether Arabidopsis HSC70 binds RNA and whether this interaction is functional has remained an open question. We provide evidence that the HSC70.1 chaperone binds its own mRNA via its C-terminal short variable region (SVR) and inhibits its own translation. The SVR encoding mRNA region is necessary for HSC70.1 transcript mobility to distant tissues and that HSC70.1 transcript and not protein mobility is required to rescue root growth and flowering time of hsc70 mutants. We propose that this negative protein-transcript feedback loop may establish an on-demand chaperone pool that allows for a rapid response to stress. In summary, our data suggest that the Arabidopsis HSC70.1 chaperone can form a complex with its own transcript to regulate its translation and that both protein and transcript can act in a noncell-autonomous manner, potentially maintaining chaperone homeostasis between tissues.
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Affiliation(s)
- Lei Yang
- Max-Planck-Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476, Golm, Germany
| | - Yuan Zhou
- Max-Planck-Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476, Golm, Germany
| | - Shuangfeng Wang
- Max-Planck-Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476, Golm, Germany
| | - Ying Xu
- Max-Planck-Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476, Golm, Germany
| | - Steffen Ostendorp
- Institute for Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - Melissa Tomkins
- Computational and Systems Biology, John Innes Centre, Norwich, NR4 7UH, UK
| | - Julia Kehr
- Institute for Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609, Hamburg, Germany
| | - Richard J Morris
- Computational and Systems Biology, John Innes Centre, Norwich, NR4 7UH, UK
| | - Friedrich Kragler
- Max-Planck-Institute of Molecular Plant Physiology, Wissenschaftspark Golm, Am Mühlenberg 1, 14476, Golm, Germany
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Parmagnani AS, Kanchiswamy CN, Paponov IA, Bossi S, Malnoy M, Maffei ME. Bacterial Volatiles (mVOC) Emitted by the Phytopathogen Erwinia amylovora Promote Arabidopsis thaliana Growth and Oxidative Stress. Antioxidants (Basel) 2023; 12:antiox12030600. [PMID: 36978848 PMCID: PMC10045578 DOI: 10.3390/antiox12030600] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 03/04/2023] Open
Abstract
Phytopathogens are well known for their devastating activity that causes worldwide significant crop losses. However, their exploitation for crop welfare is relatively unknown. Here, we show that the microbial volatile organic compound (mVOC) profile of the bacterial phytopathogen, Erwinia amylovora, enhances Arabidopsis thaliana shoot and root growth. GC-MS head-space analyses revealed the presence of typical microbial volatiles, including 1-nonanol and 1-dodecanol. E. amylovora mVOCs triggered early signaling events including plasma transmembrane potential Vm depolarization, cytosolic Ca2+ fluctuation, K+-gated channel activity, and reactive oxygen species (ROS) and nitric oxide (NO) burst from few minutes to 16 h upon exposure. These early events were followed by the modulation of the expression of genes involved in plant growth and defense responses and responsive to phytohormones, including abscisic acid, gibberellin, and auxin (including the efflux carriers PIN1 and PIN3). When tested, synthetic 1-nonanol and 1-dodecanol induced root growth and modulated genes coding for ROS. Our results show that E. amylovora mVOCs affect A. thaliana growth through a cascade of early and late signaling events that involve phytohormones and ROS.
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Affiliation(s)
- Ambra S. Parmagnani
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/a, 10135 Turin, Italy
| | | | - Ivan A. Paponov
- Department of Food Science, Aarhus University, 8200 Aarhus, Denmark
| | - Simone Bossi
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/a, 10135 Turin, Italy
| | - Mickael Malnoy
- Research and Innovation Centre, Edmund Mach Foundation, Via Edmund Mach 1, 38098 San Michele all’Adige, Italy
| | - Massimo E. Maffei
- Department of Life Sciences and Systems Biology, University of Turin, Via Quarello 15/a, 10135 Turin, Italy
- Correspondence: ; Tel.: +39-011-670-5967
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Chen H, Jin J, Hu S, Shen L, Zhang P, Li Z, Fang Z, Liu H. Metabolomics and proteomics reveal the toxicological mechanisms of florfenicol stress on wheat (Triticum aestivum L.) seedlings. JOURNAL OF HAZARDOUS MATERIALS 2023; 443:130264. [PMID: 36327828 DOI: 10.1016/j.jhazmat.2022.130264] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 10/16/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Although the ecological impacts of antibiotics have received attention worldwide, research on the toxicity of florfenicol is still limited. We conducted a metabolomic and proteomic study on wheat (Triticum aestivum L.) seedlings to reveal the toxicological mechanism of florfenicol. The growth of the wheat seedlings was found to be inhibited by florfenicol. Antioxidant enzyme activities (superoxide dismutase, peroxidase and catalase), malondialdehyde content and membrane permeability increased with increasing florfenicol concentration. The contents of chlorophyll and chlorophyll synthesis precursor substances (Proto IX, Mg-proto IX and Pchlide), photosynthetic and respiration rates, and chlorophyll fluorescence parameters decreased, indicating that photosynthesis was inhibited. The ultrastructure of chloroplasts was destroyed, as evidenced by the blurred membrane surface, irregular grana arrangement, irregular thylakoid lamella structure, and increased plastoglobuli number. Proteome analysis revealed that up-regulated proteins were highly involved in protein refolding, translation, oxidation-reduction, tricarboxylic acid cycle (TCA cycle), reactive oxygen species metabolic process, cellular oxidant detoxification, and response to oxidative stress. The down-regulated proteins were mainly enriched in photosynthesis-related pathways. In the metabolome analysis, the content of most of the metabolites in wheat leaves, such as carbohydrates and amino acids increased significantly (p < 0.05). Combined pathway analysis showed that florfenicol stress stimulated the TCA cycle pathway and downregulated the photosynthesis pathway.
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Affiliation(s)
- Hanmei Chen
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Jiaojun Jin
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Shuhao Hu
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Luoqin Shen
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Ping Zhang
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Zhiheng Li
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Zhiguo Fang
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Huijun Liu
- School of Environmental Science and Engineering, Instrumental analysis center, Zhejiang Gongshang University, Hangzhou 310018, PR China.
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29
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Vu NT, Nguyen NBT, Ha HH, Nguyen LN, Luu LH, Dao HQ, Vu TT, Huynh HTT, Le HTT. Evolutionary analysis and expression profiling of the HSP70 gene family in response to abiotic stresses in tomato ( Solanum lycopersicum). Sci Prog 2023; 106:368504221148843. [PMID: 36650980 PMCID: PMC10358566 DOI: 10.1177/00368504221148843] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Heat shock protein 70 (HSP70) genes play essential roles in guarding plants against abiotic stresses, including heat, drought, and salt. In this study, the SlHSP70 gene family in tomatoes has been characterized using bioinformatic tools. 25 putative SlHSP70 genes in the tomato genome were found and classified into five subfamilies, with multi-subcellular localizations. Twelve pairs of gene duplications were identified, and segmental events were determined as the main factor for the gene family expansion. Based on public RNA-seq data, gene expression analysis identified the majority of genes expressed in the examined organelles. Further RNA-seq analysis and then quantitative RT-PCR validation showed that many SlHSP70 members are responsible for cellular feedback to heat, drought, and salt treatments, in which, at least five genes might be potential key players in the stress response. Our results provided a thorough overview of the SlHSP70 gene family in the tomato, which may be useful for the evolutionary and functional analysis of SlHSP70 under abiotic stress conditions.
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Affiliation(s)
- Nam Tuan Vu
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ngoc Bich Thi Nguyen
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hanh Hong Ha
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Linh Nhat Nguyen
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ly Han Luu
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Ha Quang Dao
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Trinh Thi Vu
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hue Thu Thi Huynh
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hien Thu Thi Le
- Department of Biotechnology, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Hanoi, Vietnam
- Laboratory of Genome Biodiversity, Institute of Genome Research, Vietnam Academy of Science and Technology, Hanoi, Vietnam
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Guo J, Ma Z, Deng C, Ding J, Chang Y. A comprehensive dynamic immune acetylproteomics profiling induced by Puccinia polysora in maize. BMC PLANT BIOLOGY 2022; 22:610. [PMID: 36564751 PMCID: PMC9789614 DOI: 10.1186/s12870-022-03964-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Lysine-ε-acetylation (Kac) is a reversible post-translational modification that plays important roles during plant-pathogen interactions. Some pathogens can deliver secreted effectors encoding acetyltransferases or deacetylases into host cell to directly modify acetylation of host proteins. However, the function of these acetylated host proteins in plant-pathogen defense remains to be determined. Employing high-resolution tandem mass spectrometry, we analyzed protein abundance and lysine acetylation changes in maize infected with Puccinia polysora (P. polysora) at 0 h, 12 h, 24 h, 48 h and 72 h. A total of 7412 Kac sites from 4697 proteins were identified, and 1732 Kac sites from 1006 proteins were quantified. Analyzed the features of lysine acetylation, we found that Kac is ubiquitous in cellular compartments and preferentially targets lysine residues in the -F/W/Y-X-X-K (ac)-N/S/T/P/Y/G- motif of the protein, this Kac motif contained proteins enriched in basic metabolism and defense-associated pathways during fungal infection. Further analysis of acetylproteomics data indicated that maize regulates cellular processes in response to P. polysora infection by altering Kac levels of histones and non-histones. In addition, acetylation of pathogen defense-related proteins presented converse patterns in signaling transduction, defense response, cell wall fortification, ROS scavenging, redox reaction and proteostasis. Our results provide informative resources for studying protein acetylation in plant-pathogen interactions, not only greatly extending the understanding on the roles of acetylation in vivo, but also providing a comprehensive dynamic pattern of Kac modifications in the process of plant immune response.
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Affiliation(s)
- Jianfei Guo
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Zhigang Ma
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
- State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China
- Shenzhen Research Institute of Henan university, Shenzhen, 518000, China
| | - Ce Deng
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China
- The State Key Laboratory of Wheat and Maize Crop Science and Center for Crop Genome Engineering, Henan Agricultural University, Zhengzhou, 450046, China
| | - Junqiang Ding
- College of Agronomy, Henan Agricultural University, Zhengzhou, 450046, China.
- The State Key Laboratory of Wheat and Maize Crop Science and Center for Crop Genome Engineering, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Yuxiao Chang
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China.
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Li Z, Wu Y, Hu J, Yang G, Wang Z, Sun J. Dissection of the response mechanism of alfalfa under phosphite stress based on metabolomic and transcriptomic data. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 192:35-49. [PMID: 36206705 DOI: 10.1016/j.plaphy.2022.09.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 09/24/2022] [Indexed: 06/16/2023]
Abstract
Phosphite, a reduced form of phosphate, inhibits the growth and even has toxic effect on plants. To learn more about the mechanism of alfalfa responses to phosphite, the morphological and physiological characteristics, and the metabolites and transcript levels were comprehensively analyzed following the exposure of alfalfa seedlings to phosphite and phosphate under greenhouse conditions. The results showed that phosphite inhibited seedling growth and photosynthesis. However, the absorption efficiency of phosphite was higher than that of phosphate in roots, which was supported by increased total phosphorus concentration of 16.29% and 52.30% on days 8 and 12. Moreover, phosphite stress affected the synthesis of lipids and carbohydrates, which were reflected in enhanced glycolipid and sulfolipid in roots and amylose in shoots. Phosphite stress resulted in a decrease in indole acetic acid (IAA) in the whole plant and zeatin in the shoots, which could enable alfalfa to adapt to the phosphite environment. Some genes involved in phosphate starvation response included SPX, phosphate response regulator2, and inorganic phosphate transporter 1-4 (PHT1;4) in roots were affected by phosphite stress. In addition, some genes that are involved in stress responses and DNA repair were induced by phosphite stress. These observations together suggest that alfalfa responds to phosphite stress by inhibiting growth, regulating the genes induced by phosphate starvation, improving oxidative protection, promoting DNA repair, and adjusting the IAA and zeatin signaling transductions. Our findings provide novel insights into the molecular response to phosphite stress in alfalfa.
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Affiliation(s)
- Zhenyi Li
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Yao Wu
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Jingyun Hu
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Guofeng Yang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Zengyu Wang
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China
| | - Juan Sun
- Key Laboratory of National Forestry and Grassland Administration on Grassland Resources and Ecology in the Yellow River Delta, College of Grassland Science, Qingdao Agricultural University, Qingdao, China.
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32
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do Nascimento SV, Herrera H, Costa PHDO, Trindade FC, da Costa IRC, Caldeira CF, Gastauer M, Ramos SJ, Oliveira G, Valadares RBDS. Molecular Mechanisms Underlying Mimosa acutistipula Success in Amazonian Rehabilitating Minelands. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14441. [PMID: 36361325 PMCID: PMC9654444 DOI: 10.3390/ijerph192114441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
Mimosa acutistipula is endemic to Brazil and grows in ferruginous outcrops (canga) in Serra dos Carajás, eastern Amazon, where one of the largest iron ore deposits in the world is located. Plants that develop in these ecosystems are subject to severe environmental conditions and must have adaptive mechanisms to grow and thrive in cangas. Mimosa acutistipula is a native species used to restore biodiversity in post-mining areas in canga. Understanding the molecular mechanisms involved in the adaptation of M. acutistipula in canga is essential to deduce the ability of native species to adapt to possible stressors in rehabilitating minelands over time. In this study, the root proteomic profiles of M. acutistipula grown in a native canga ecosystem and rehabilitating minelands were compared to identify essential proteins involved in the adaptation of this species in its native environment and that should enable its establishment in rehabilitating minelands. The results showed differentially abundant proteins, where 436 proteins with significant values (p < 0.05) and fold change ≥ 2 were more abundant in canga and 145 in roots from the rehabilitating minelands. Among them, a representative amount and diversity of proteins were related to responses to water deficit, heat, and responses to metal ions. Other identified proteins are involved in biocontrol activity against phytopathogens and symbiosis. This research provides insights into proteins involved in M. acutistipula responses to environmental stimuli, suggesting critical mechanisms to support the establishment of native canga plants in rehabilitating minelands over time.
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Affiliation(s)
- Sidney Vasconcelos do Nascimento
- Instituto Tecnologico Vale, Rua Boaventura da Silva 955, Belém 66050-090, PA, Brazil
- Programa de Pos-Graduacão em Genética e Biologia Molecular, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Héctor Herrera
- Laboratorio de Silvicultura, Departamento de Ciencias Forestales, Facultad de Ciencias Agropecuarias y Medioambiente, Universidad de La Frontera, Temuco 4811230, Chile
| | | | - Felipe Costa Trindade
- Programa de Pos-Graduacão em Genética e Biologia Molecular, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | - Isa Rebecca Chagas da Costa
- Programa de Pos-Graduacão em Genética e Biologia Molecular, Universidade Federal do Pará, Belém 66075-110, PA, Brazil
| | | | - Markus Gastauer
- Instituto Tecnologico Vale, Rua Boaventura da Silva 955, Belém 66050-090, PA, Brazil
| | - Silvio Junio Ramos
- Instituto Tecnologico Vale, Rua Boaventura da Silva 955, Belém 66050-090, PA, Brazil
| | - Guilherme Oliveira
- Instituto Tecnologico Vale, Rua Boaventura da Silva 955, Belém 66050-090, PA, Brazil
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Berková V, Berka M, Griga M, Kopecká R, Prokopová M, Luklová M, Horáček J, Smýkalová I, Čičmanec P, Novák J, Brzobohatý B, Černý M. Molecular Mechanisms Underlying Flax ( Linum usitatissimum L.) Tolerance to Cadmium: A Case Study of Proteome and Metabolome of Four Different Flax Genotypes. PLANTS (BASEL, SWITZERLAND) 2022; 11:2931. [PMID: 36365383 PMCID: PMC9655427 DOI: 10.3390/plants11212931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/21/2022] [Accepted: 10/27/2022] [Indexed: 06/16/2023]
Abstract
Cadmium is one of the most toxic heavy metal pollutants, and its accumulation in the soil is harmful to agriculture. Plants have a higher cadmium tolerance than animals, and some species can be used for phytoremediation. Flax (Linum usitatissimum L.) can accumulate high amounts of cadmium, but the molecular mechanism behind its tolerance is unknown. Here, we employed four genotypes representing two fiber cultivars, an oilseed breeding line, and a transgenic line overexpressing the metallothionein domain for improved cadmium tolerance. We analyzed the proteome of suspensions and the proteome and metabolome of seedling roots in response to cadmium. We identified more than 1400 differentially abundant proteins representing putative mechanisms in cadmium tolerance, including metal-binding proteins and transporters, enzymes of flavonoid, jasmonate, polyamine, glutathione metabolism, and HSP70 proteins. Our data indicated the role of the phytohormone cytokinin in the observed responses. The metabolome profiling found that pipecolinic acid could be a part of the cadmium accumulation mechanism, and the observed accumulation of putrescine, coumaric acid, cinnamic acid, and coutaric acid confirmed the role of polyamines and flavonoids in tolerance to cadmium. In conclusion, our data provide new insight into cadmium tolerance and prospective targets for improving cadmium tolerance in other plants.
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Affiliation(s)
- Veronika Berková
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Miroslav Berka
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Miroslav Griga
- Plant Biotechnology Department, Agritec Plant Research, Ltd., 78701 Šumperk, Czech Republic
| | - Romana Kopecká
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Miroslava Prokopová
- Plant Biotechnology Department, Agritec Plant Research, Ltd., 78701 Šumperk, Czech Republic
| | - Markéta Luklová
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Jiří Horáček
- Plant Biotechnology Department, Agritec Plant Research, Ltd., 78701 Šumperk, Czech Republic
| | - Iva Smýkalová
- Plant Biotechnology Department, Agritec Plant Research, Ltd., 78701 Šumperk, Czech Republic
| | - Petr Čičmanec
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Jan Novák
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
| | - Martin Černý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Mendel University in Brno, 61300 Brno, Czech Republic
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Sowa S, Sozoniuk M, Toporowska J, Kowalczyk K, Paczos-Grzęda E. Validation of reference genes as an internal control for studying Avena sativa-Puccinia coronata interaction by RT-qPCR. Sci Rep 2022; 12:14601. [PMID: 36028746 PMCID: PMC9418433 DOI: 10.1038/s41598-022-18746-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/18/2022] [Indexed: 11/11/2022] Open
Abstract
In this study we evaluated eleven candidate reference genes in Avena sativa during compatible and incompatible interactions with two different pathotypes of Puccinia coronata f. sp. avenae in six time points post-inoculation. The identification of genes with high expression stability was performed by four algorithms (geNorm, NormFinder, BestKeeper and ΔCt method). The results obtained confirmed that the combination of two genes would be sufficient for reliable normalization of the expression data. In general, the most stable in the tested plant-pathogen system were HNR (heterogeneous nuclear ribonucleoprotein 27C) and EF1A (elongation factor 1-alpha). ARF (ADP-ribosylation factor) and EIF4A (eukaryotic initiation factor 4A-3) could also be considered as exhibiting high expression stability. CYP (cyclophilin) was shown by all assessment methods to be the worst candidate for normalization in this dataset. To date, this is the first report of reference genes selection in A. sativa–P. coronata interaction system. Identified reference genes enable reliable and comprehensive RT-qPCR analysis of oat gene expression in response to crown rust infection. Understanding the molecular mechanisms involved in the host–pathogen interactions may expand knowledge of durable resistance strategies beneficial to modern oat breeding.
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Affiliation(s)
- Sylwia Sowa
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland.
| | - Magdalena Sozoniuk
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland
| | - Joanna Toporowska
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland
| | - Krzysztof Kowalczyk
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland
| | - Edyta Paczos-Grzęda
- Institute of Plant Genetics, Breeding and Biotechnology, University of Life Sciences in Lublin, Akademicka 13, 20-950, Lublin, Poland
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Genome-Wide Identification and Characterization of RNA/DNA Differences Associated with Fusarium graminearum Infection in Wheat. Int J Mol Sci 2022; 23:ijms23147982. [PMID: 35887327 PMCID: PMC9316857 DOI: 10.3390/ijms23147982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 06/29/2022] [Accepted: 07/14/2022] [Indexed: 12/03/2022] Open
Abstract
RNA/DNA difference (RDD) is a post-transcriptional modification playing a crucial role in regulating diverse biological processes in eukaryotes. Although it has been extensively studied in plant chloroplast and mitochondria genomes, RDDs in plant nuclear genomes are not well studied at present. Here, we investigated the RDDs associated with fusarium head blight (FHB) through a novel method by comparing the RNA-seq data between Fusarium-infected and control samples of four wheat genotypes. A total of 187 high-confidence unique RDDs in 36 genes were identified, representing the first landscape of the FHB-responsive RDD in wheat. The majority (26) of these 36 RDD genes were correlated either positively or negatively with FHB levels. Effects of these RDDs on RNA and protein sequences have been identified, their editing frequency and the expression level of the corresponding genes provided, and the prediction of the effect on the minimum folding free energy of mRNA, miRNA binding, and colocation of RDDs with conserved domains presented. RDDs were predicted to induce modifications in the mRNA and protein structures of the corresponding genes. In two genes, TraesCS1B02G294300 and TraesCS3A02G263900, editing was predicted to enhance their affinity with tae-miR9661-5p and tae-miR9664-3p, respectively. To our knowledge, this study is the first report of the association between RDD and FHB in wheat; this will contribute to a better understanding of the molecular basis underlying FHB resistance, and potentially lead to novel strategies to improve wheat FHB resistance through epigenetic methods.
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Bělonožníková K, Hýsková V, Vašková M, Křížek T, Čokrtová K, Vaněk T, Halířová L, Chudý M, Žufić A, Ryšlavá H. Seed Protection of Solanum lycopersicum with Pythium oligandrum against Alternaria brassicicola and Verticillium albo-atrum. Microorganisms 2022; 10:microorganisms10071348. [PMID: 35889067 PMCID: PMC9315653 DOI: 10.3390/microorganisms10071348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 12/10/2022] Open
Abstract
Pythium oligandrum, strain M1, is a soil oomycete successfully used as a biological control agent (BCA), protecting plants against fungal, yeast, and oomycete pathogens through mycoparasitism and elicitor-dependent plant priming. The not yet described Pythium strains, X42 and 00X48, have shown potential as BCAs given the high activity of their secreted proteases, endoglycosidases, and tryptamine. Here, Solanum lycopersicum L. cv. Micro-Tom seeds were coated with Pythium strains, and seedlings were exposed to fungal pathogens, either Alternaria brassicicola or Verticillium albo-atrum. The effects of both infection and seed-coating on plant metabolism were assessed by determining the activity and isoforms of antioxidant enzymes and endoglycosidases and the content of tryptamine, amino acids, and heat shock proteins. Dual culture competition testing and microscopy analysis confirmed mycoparasitism in all three Pythium strains. In turn, seed treatment significantly increased the total free amino acid content, changing their abundance in both non-infected and infected plants. In response to pathogens, plant Hsp70 and Hsp90 isoform levels also varied among Pythium strains, most likely as a strategy for priming the plant against infection. Overall, our results show in vitro mycoparasitism between Pythium strains and fungal pathogens and in planta involvement of heat shock proteins in priming.
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Affiliation(s)
- Kateřina Bělonožníková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Veronika Hýsková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Marie Vašková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Tomáš Křížek
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Kateřina Čokrtová
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic
| | - Tomáš Vaněk
- Biopreparáty, spol. s r.o., Tylišovská 1, 160 00 Prague 6, Czech Republic;
| | - Lucie Halířová
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Michal Chudý
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Antoniana Žufić
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
| | - Helena Ryšlavá
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, 128 43 Prague 2, Czech Republic; (K.B.); (V.H.); (M.V.); (T.K.); (K.Č.); (L.H.); (M.C.); (A.Ž.)
- Correspondence: ; Tel.: +420-221-951-282
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Cerny M, Berka M, Dvořák M, Milenković I, Saiz-Fernández I, Brzobohatý B, Ďurkovič J. Defense mechanisms promoting tolerance to aggressive Phytophthora species in hybrid poplar. FRONTIERS IN PLANT SCIENCE 2022; 13:1018272. [PMID: 36325556 PMCID: PMC9621118 DOI: 10.3389/fpls.2022.1018272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 09/30/2022] [Indexed: 05/04/2023]
Abstract
Poplars are among the fastest-growing trees and significant resources in agriculture and forestry. However, rapid growth requires a large water consumption, and irrigation water provides a natural means for pathogen spread. That includes members of Phytophthora spp. that have proven to be a global enemy to forests. With the known adaptability to new hosts, it is only a matter of time for more aggressive Phytophthora species to become a threat to poplar forests and plantations. Here, the effects of artificial inoculation with two different representatives of aggressive species (P. cactorum and P. plurivora) were analyzed in the proteome of the Phytophthora-tolerant hybrid poplar clone T-14 [Populus tremula L. 70 × (Populus × canescens (Ait.) Sm. 23)]. Wood microcore samples were collected at the active necrosis borders to provide insight into the molecular processes underlying the observed tolerance to Phytophthora. The analysis revealed the impact of Phytophthora on poplar primary and secondary metabolism, including carbohydrate-active enzymes, amino acid biosynthesis, phenolic metabolism, and lipid metabolism, all of which were confirmed by consecutive metabolome and lipidome profiling. Modulations of enzymes indicating systemic response were confirmed by the analysis of leaf proteome, and sampling of wood microcores in distal locations revealed proteins with abundance correlating with proximity to the infection, including germin-like proteins, components of proteosynthesis, glutamate carboxypeptidase, and an enzyme that likely promotes anthocyanin stability. Finally, the identified Phytophthora-responsive proteins were compared to those previously found in trees with compromised defense against Phytophthora, namely, Quercus spp. and Castanea sativa. That provided a subset of candidate markers of Phytophthora tolerance, including certain ribosomal proteins, auxin metabolism enzymes, dioxygenases, polyphenol oxidases, trehalose-phosphate synthase, mannose-1-phosphate guanylyltransferase, and rhamnose biosynthetic enzymes. In summary, this analysis provided the first insight into the molecular mechanisms of hybrid poplar defense against Phytophthora and identified prospective targets for improving Phytophthora tolerance in trees.
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Affiliation(s)
- Martin Cerny
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
- *Correspondence: Martin Cerny,
| | - Miroslav Berka
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
| | - Miloň Dvořák
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
| | - Ivan Milenković
- Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
- Department of Forestry, University of Belgrade-Faculty of Forestry, Belgrade, Serbia
| | - Iñigo Saiz-Fernández
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
| | - Břetislav Brzobohatý
- Department of Molecular Biology and Radiobiology, Faculty of AgriSciences, Phytophthora Research Centre, Mendel University in Brno, Brno, Czechia
| | - Jaroslav Ďurkovič
- Department of Phytology, Technical University in Zvolen, Zvolen, Slovakia
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