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学者姓名:石兰平

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Mechanisms of Morphological Development and Physiological Responses Regulated by Light Spectrum in Changchuan No. 3 Pepper Seedlings SCIE
期刊论文 | 2025 , 11 (10) | HORTICULTURAE
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Abstract :

This study aimed to evaluate the effects of specific LED light spectra on the growth and physiology of Changchuan No. 3 Capsicum annuum L. seedlings. The experimental design involved exposing pepper seedlings to six different spectral light combinations for 7, 14, and 21 days, with the treatments consisting of 2R1B1Y (red/blue/yellow = 2:1:1), 2R1B1FR (red/blue/far-red = 2:1:1), 2R1B1P (red/blue/purple = 2:1:1), 4R2B1G (red/blue/green = 4:2:1), 2R1B1G (red/blue/green = 2:1:1), and 2R1B (red/blue = 2:1). The results demonstrated distinct spectral regulation of seedling development: compared to the white light (CK), the 2R1B1FR (far-red light supplementation) treatment progressively stimulated stem elongation, increasing plant height and stem diameter by 81.6% and 25.9%, respectively, at day 21, but resulted in a more slender stem architecture. The 2R1B1G (balanced green light) treatment consistently promoted balanced growth, culminating in the highest seedling vigor index at the final stage. The 2R1B1P (purple light supplementation) treatment exhibited a strong promotive effect on root development, which became most pronounced at day 21 (126% increase in root dry weight), while concurrently enhancing soluble sugar content and reducing oxidative stress. Conversely, the 2R1B1Y (yellow light supplementation) treatment increased MDA content by 70% and led to a reduction in chlorophyll accumulation, while 2R1B (basic red-blue) resulted in lower biomass accumulation compared to the superior spectral treatments. The 4R2B1G (low green ratio) treatment showed context-dependent outcomes. This study elucidates how targeted spectral compositions, particularly involving far-red and green light, can optimize pepper seedling quality by modulating photomorphogenesis, carbon allocation, and stress physiology. The findings provide a mechanistic basis for designing efficient LED lighting protocols in controlled-environment agriculture to enhance pepper nursery production.

Keyword :

light-emitting diode light-emitting diode photosynthetic pigments photosynthetic pigments physiological response physiological response seedling growth seedling growth spectral regulation spectral regulation

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GB/T 7714 Zhu, Wanli , Huang, Zhi , Zhao, Shiting et al. Mechanisms of Morphological Development and Physiological Responses Regulated by Light Spectrum in Changchuan No. 3 Pepper Seedlings [J]. | HORTICULTURAE , 2025 , 11 (10) .
MLA Zhu, Wanli et al. "Mechanisms of Morphological Development and Physiological Responses Regulated by Light Spectrum in Changchuan No. 3 Pepper Seedlings" . | HORTICULTURAE 11 . 10 (2025) .
APA Zhu, Wanli , Huang, Zhi , Zhao, Shiting , Chen, Zhi , Xu, Bo , Huang, Qiang et al. Mechanisms of Morphological Development and Physiological Responses Regulated by Light Spectrum in Changchuan No. 3 Pepper Seedlings . | HORTICULTURAE , 2025 , 11 (10) .
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CaARP1/CaSGT1 Module Regulates Vegetative Growth and Defense Response of Pepper Plants against Phytophthora capsici SCIE
期刊论文 | 2024 , 13 (20) | PLANTS-BASEL
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Abstract :

Pepper (Capsicum annuum L.) suffers severe quality and yield loss from oomycete diseases caused by Phytophthora capsici. CaSGT1 was previously determined to positively regulate the immune response of pepper plants against P. capsici, but by which mechanism remains elusive. In the present study, the potential interacting proteins of CaSGT1 were isolated from pepper using a yeast two-hybrid system, among which CaARP1 was determined to interact with CaSGT1 via bimolecular fluorescence complementation (BiFC) and microscale thermophoresis (MST) assays. CaARP1 belongs to the auxin-repressed protein family, which is well-known to function in modulating plant growth. The transcriptional and protein levels of CaARP1 were both significantly induced by infection with P. capsici. Silencing of CaARP1 promotes the vegetative growth of pepper plants and attenuates its disease resistance to P. capsici, as well as compromising the hypersensitive response-like cell death in pepper leaves induced by PcINF1, a well-characterized typical PAMP from P. capsici. Chitin-induced transient expression of CaARP1 in pepper leaves enhanced its disease resistance to P. capsici, which is amplified by CaSGT1 co-expression as a positive regulator. Taken together, our result revealed that CaARP1 plays a dual role in the pepper, negatively regulating the vegetative growth and positively regulating plant immunity against P. capsici in a manner associated with CaSGT1.

Keyword :

CaARP1 CaARP1 CaSGT1 CaSGT1 defense response defense response Phytophthora capsici Phytophthora capsici vegetable growth vegetable growth

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GB/T 7714 Li, Xia , Weng, Yahong , Chen, Yufeng et al. CaARP1/CaSGT1 Module Regulates Vegetative Growth and Defense Response of Pepper Plants against Phytophthora capsici [J]. | PLANTS-BASEL , 2024 , 13 (20) .
MLA Li, Xia et al. "CaARP1/CaSGT1 Module Regulates Vegetative Growth and Defense Response of Pepper Plants against Phytophthora capsici" . | PLANTS-BASEL 13 . 20 (2024) .
APA Li, Xia , Weng, Yahong , Chen, Yufeng , Liu, Kaisheng , Liu, Yanyan , Zhang, Kan et al. CaARP1/CaSGT1 Module Regulates Vegetative Growth and Defense Response of Pepper Plants against Phytophthora capsici . | PLANTS-BASEL , 2024 , 13 (20) .
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CaMAPK1 Plays a Vital Role in the Regulation of Resistance to Ralstonia solanacearum Infection and Tolerance to Heat Stress SCIE
期刊论文 | 2024 , 13 (13) | PLANTS-BASEL
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Abstract :

As an important member of mitogen-activated protein kinase (MAPK) cascades, MAPKs play an important role in plant defense response against biotic and abiotic stresses; however, the involvement of the majority of the MAPK family members against Ralstonia solanacearum and heat stress (HS) remains poorly understood. In the present study, CaMAPK1 was identified from the genome of pepper and its function against R. solanacearum and HS was analyzed. The transcript accumulations of CaMAPK1 and the activities of its native promoter were both significantly induced by R. solanacearum inoculation, HS, and the application of exogenous hormones, including SA, MeJA, and ABA. Transient expression of CaMAPK1 showed that CaMAPK1 can be targeted throughout the whole cells in Nicotiana benthamiana and triggered chlorosis and hypersensitive response-like cell death in pepper leaves, accompanied by the accumulation of H2O2, and the up-regulations of hormones- and H2O2-associated marker genes. The knock-down of CaMAPK1 enhanced the susceptibility to R. solanacearum partially by down-regulating the expression of hormones- and H2O2-related genes and impairing the thermotolerance of pepper probably by attenuating CaHSFA2 and CaHSP70-1 transcripts. Taken together, our results revealed that CaMAPK1 is regulated by SA, JA, and ABA signaling and coordinates responses to R. solanacearum infection and HS in pepper.

Keyword :

Capsicum annuum Capsicum annuum defense signaling defense signaling disease resistance disease resistance MAPK MAPK thermotolerance thermotolerance

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GB/T 7714 Shi, Lanping , Shi, Wei , Qiu, Zhengkun et al. CaMAPK1 Plays a Vital Role in the Regulation of Resistance to Ralstonia solanacearum Infection and Tolerance to Heat Stress [J]. | PLANTS-BASEL , 2024 , 13 (13) .
MLA Shi, Lanping et al. "CaMAPK1 Plays a Vital Role in the Regulation of Resistance to Ralstonia solanacearum Infection and Tolerance to Heat Stress" . | PLANTS-BASEL 13 . 13 (2024) .
APA Shi, Lanping , Shi, Wei , Qiu, Zhengkun , Yan, Shuangshuang , Liu, Zhiqin , Cao, Bihao . CaMAPK1 Plays a Vital Role in the Regulation of Resistance to Ralstonia solanacearum Infection and Tolerance to Heat Stress . | PLANTS-BASEL , 2024 , 13 (13) .
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CaWRKY22b Plays a Positive Role in the Regulation of Pepper Resistance to Ralstonia solanacearum in a Manner Associated with Jasmonic Acid Signaling SCIE
期刊论文 | 2024 , 13 (15) | PLANTS-BASEL
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As important transcription factors, WRKYs play a vital role in the defense response of plants against the invasion of multiple pathogens. Though some WRKY members have been reported to participate in pepper immunity in response to Ralstonia solanacearum infection, the functions of the majority of WRKY members are still unknown. Herein, CaWRKY22b was cloned from the pepper genome and its function against R. solanacearum was analyzed. The transcript abundance of CaWRKY22b was significantly increased in response to the infection of R. solanacearum and the application of exogenous methyl jasmonate (MeJA). Subcellular localization assay in the leaves of Nicotiana benthamiana showed that CaWRKY22b protein was targeted to the nuclei. Agrobacterium-mediated transient expression in pepper leaves indicated that CaWRKY22b overexpression triggered intensive hypersensitive response-like cell death, H2O2 accumulation, and the up-regulation of defense- and JA-responsive genes, including CaHIR1, CaPO2, CaBPR1, and CaDEF1. Virus-induced gene silencing assay revealed that knock-down of CaWRKY22b attenuated pepper's resistance against R. solanacearum and the up-regulation of the tested defense- and jasmonic acid (JA)-responsive genes. We further assessed the role of CaWRKY22b in modulating the expression of JA-responsive CaDEF1, and the result demonstrated that CaWRKY22b trans-activated CaDEF1 expression by directly binding to its upstream promoter. Collectively, our results suggest that CaWRKY22b positively regulated pepper immunity against R. solanacearum in a manner associated with JA signaling, probably by modulating the expression of JA-responsive CaDEF1.

Keyword :

immunity immunity JA signaling JA signaling pepper pepper Ralstonia solanacearum Ralstonia solanacearum WRKY transcription factor WRKY transcription factor

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GB/T 7714 Shi, Lanping , Fan, Yuemin , Yang, Yingjie et al. CaWRKY22b Plays a Positive Role in the Regulation of Pepper Resistance to Ralstonia solanacearum in a Manner Associated with Jasmonic Acid Signaling [J]. | PLANTS-BASEL , 2024 , 13 (15) .
MLA Shi, Lanping et al. "CaWRKY22b Plays a Positive Role in the Regulation of Pepper Resistance to Ralstonia solanacearum in a Manner Associated with Jasmonic Acid Signaling" . | PLANTS-BASEL 13 . 15 (2024) .
APA Shi, Lanping , Fan, Yuemin , Yang, Yingjie , Yan, Shuangshuang , Qiu, Zhengkun , Liu, Zhiqin et al. CaWRKY22b Plays a Positive Role in the Regulation of Pepper Resistance to Ralstonia solanacearum in a Manner Associated with Jasmonic Acid Signaling . | PLANTS-BASEL , 2024 , 13 (15) .
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Ralstonia solanacearum effector RipAK suppresses homodimerization of the host transcription factor ERF098 to enhance susceptibility and the sensitivity of pepper plants to dehydration SCIE
期刊论文 | 2023 , 117 (1) , 121-144 | PLANT JOURNAL
WoS CC Cited Count: 8
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Abstract :

Plants have evolved a sophisticated immune system to defend against invasion by pathogens. In response, pathogens deploy copious effectors to evade the immune responses. However, the molecular mechanisms used by pathogen effectors to suppress plant immunity remain unclear. Herein, we report that an effector secreted by Ralstonia solanacearum, RipAK, modulates the transcriptional activity of the ethylene-responsive factor ERF098 to suppress immunity and dehydration tolerance, which causes bacterial wilt in pepper (Capsicum annuum L.) plants. Silencing ERF098 enhances the resistance of pepper plants to R. solanacearum infection not only by inhibiting the host colonization of R. solanacearum but also by increasing the immunity and tolerance of pepper plants to dehydration and including the closure of stomata to reduce the loss of water in an abscisic acid signal-dependent manner. In contrast, the ectopic expression of ERF098 in Nicotiana benthamiana enhances wilt disease. We also show that RipAK targets and inhibits the ERF098 homodimerization to repress the expression of salicylic acid-dependent PR1 and dehydration tolerance-related OSR1 and OSM1 by cis-elements in their promoters. Taken together, our study reveals a regulatory mechanism used by the R. solanacearum effector RipAK to increase virulence by specifically inhibiting the homodimerization of ERF098 and reprogramming the transcription of PR1, OSR1, and OSM1 to boost susceptibility and dehydration sensitivity. Thus, our study sheds light on a previously unidentified strategy by which a pathogen simultaneously suppresses plant immunity and tolerance to dehydration by secreting an effector to interfere with the activity of a transcription factor and manipulate plant transcriptional programs.

Keyword :

dehydration dehydration effector effector immunity immunity pepper pepper Ralstonia solanacearum Ralstonia solanacearum transcription factor transcription factor

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GB/T 7714 Liu, Kaisheng , Shi, Lanping , Luo, Hongli et al. Ralstonia solanacearum effector RipAK suppresses homodimerization of the host transcription factor ERF098 to enhance susceptibility and the sensitivity of pepper plants to dehydration [J]. | PLANT JOURNAL , 2023 , 117 (1) : 121-144 .
MLA Liu, Kaisheng et al. "Ralstonia solanacearum effector RipAK suppresses homodimerization of the host transcription factor ERF098 to enhance susceptibility and the sensitivity of pepper plants to dehydration" . | PLANT JOURNAL 117 . 1 (2023) : 121-144 .
APA Liu, Kaisheng , Shi, Lanping , Luo, Hongli , Zhang, Kan , Liu, Jianxin , Qiu, Shanshan et al. Ralstonia solanacearum effector RipAK suppresses homodimerization of the host transcription factor ERF098 to enhance susceptibility and the sensitivity of pepper plants to dehydration . | PLANT JOURNAL , 2023 , 117 (1) , 121-144 .
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The CaPti1-CaERF3 module positively regulates resistance of Capsicum annuum to bacterial wilt disease by coupling enhanced immunity and dehydration tolerance SCIE
期刊论文 | 2022 , 111 (1) , 250-268 | PLANT JOURNAL
WoS CC Cited Count: 8
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Abstract :

Bacterial wilt, a severe disease involving vascular system blockade, is caused by Ralstonia solanacearum. Although both plant immunity and dehydration tolerance might contribute to disease resistance, whether and how they are related remains unclear. Herein, we showed that immunity against R. solanacearum and dehydration tolerance are coupled and regulated by the CaPti1-CaERF3 module. CaPti1 and CaERF3 are members of the serine/threonine protein kinase and ethylene-responsive factor families, respectively. Expression profiling revealed that CaPti1 and CaERF3 were upregulated by R. solanacearum inoculation, dehydration stress, and exogenously applied abscisic acid (ABA). They in turn phenocopied each other in promoting resistance of pepper (Capsicum annuum) to bacterial wilt not only by activating salicylic acid-dependent CaPR1, but also by activating dehydration tolerance-related CaOSM1 and CaOSR1 and inducing stomatal closure to reduce water loss in an ABA signaling-dependent manner. Our yeast two hybrid assay showed that CaERF3 interacted with CaPti1, which was confirmed using co-immunoprecipitation, bimolecular fluorescence complementation, and pull-down assays. Chromatin immunoprecipitation and electrophoretic mobility shift assays showed that upon R. solanacearum inoculation, CaPR1, CaOSM1, and CaOSR1 were directly targeted and positively regulated by CaERF3 and potentiated by CaPti1. Additionally, our data indicated that the CaPti1-CaERF3 complex might act downstream of ABA signaling, as exogenously applied ABA did not alter regulation of stomatal aperture by the CaPti1-CaERF3 module. Importantly, the CaPti1-CaERF3 module positively affected pepper growth and the response to dehydration stress. Collectively, the results suggested that immunity and dehydration tolerance are coupled and positively regulated by CaPti1-CaERF3 in pepper plants to enhance resistance against R. solanacearum.

Keyword :

kinase kinase pepper pepper Ralstonia solanacearum Ralstonia solanacearum trans-activation trans-activation transcription factor transcription factor

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GB/T 7714 Shi, Lanping , Li, Xia , Weng, Yahong et al. The CaPti1-CaERF3 module positively regulates resistance of Capsicum annuum to bacterial wilt disease by coupling enhanced immunity and dehydration tolerance [J]. | PLANT JOURNAL , 2022 , 111 (1) : 250-268 .
MLA Shi, Lanping et al. "The CaPti1-CaERF3 module positively regulates resistance of Capsicum annuum to bacterial wilt disease by coupling enhanced immunity and dehydration tolerance" . | PLANT JOURNAL 111 . 1 (2022) : 250-268 .
APA Shi, Lanping , Li, Xia , Weng, Yahong , Cai, Hanyang , Liu, Kaisheng , Xie, Baixue et al. The CaPti1-CaERF3 module positively regulates resistance of Capsicum annuum to bacterial wilt disease by coupling enhanced immunity and dehydration tolerance . | PLANT JOURNAL , 2022 , 111 (1) , 250-268 .
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The Pepper Mitogen-Activated Protein Kinase CaMAPK7 Acts as a Positive Regulator in Response to Ralstonia solanacearum Infection SCIE
期刊论文 | 2021 , 12 | FRONTIERS IN MICROBIOLOGY
WoS CC Cited Count: 4
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Abstract :

Mitogen-activated protein kinase (MAPK) pathways play a vital role in multiple plant processes, including growth, development, and stress signaling, but their involvement in response to Ralstonia solanacearum is poorly understood, particularly in pepper plants. Herein, CaMAPK7 was identified from the pepper genome and functionally analyzed. The accumulations of CaMAPK7 transcripts and promoter activities were both significantly induced in response to R. solanacearum strain FJC100301 infection, and exogenously applied phytohormones, including methyl jasmonate (MeJA), brassinolide (BR), salicylic acid (SA), and ethephon (ETN), were decreased by abscisic acid (ABA) treatment. Virus-induced gene silencing (VIGS) of CaMAPK7 significantly enhanced the susceptibility of pepper plants to infection by R. solanacearum and downregulated the defense-related marker genes, including CaDEF1, CaPO2, CaSAR82A, and CaWRKY40. In contrast, the ectopic overexpression of CaMAPK7 in transgenic tobacco enhanced resistance to R. solanacearum and upregulated the defense-associated marker genes, including NtHSR201, NtHSR203, NtPR4, PR1a/c, NtPR1b, NtCAT1, and NtACC. Furthermore, transient overexpression of CaMAPK7 in pepper leaves triggered intensive hypersensitive response (HR)-like cell death, H2O2 accumulation, and enriched CaWRKY40 at the promoters of its target genes and drove their transcript accumulations, including CaDEF1, CaPO2, and CaSAR82A. Taken together, these data indicate that R. solanacearum infection induced the expression of CaMAPK7, which indirectly modifies the binding of CaWRKY40 to its downstream targets, including CaDEF1, CaPO2, and CaSAR82A, ultimately leading to the activation of pepper immunity against R. solanacearum. The protein that responds to CaMAPK7 in pepper plants should be isolated in the future to build a signaling bridge between CaMAPK7 and CaWRKY40.

Keyword :

Capsicum annuum Capsicum annuum mitogen-activated protein kinase mitogen-activated protein kinase pathogenicity pathogenicity Ralstonia solanacearum Ralstonia solanacearum WRKY transcription factor WRKY transcription factor

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GB/T 7714 Shi, Lanping , Zhang, Kan , Xie, Linjing et al. The Pepper Mitogen-Activated Protein Kinase CaMAPK7 Acts as a Positive Regulator in Response to Ralstonia solanacearum Infection [J]. | FRONTIERS IN MICROBIOLOGY , 2021 , 12 .
MLA Shi, Lanping et al. "The Pepper Mitogen-Activated Protein Kinase CaMAPK7 Acts as a Positive Regulator in Response to Ralstonia solanacearum Infection" . | FRONTIERS IN MICROBIOLOGY 12 (2021) .
APA Shi, Lanping , Zhang, Kan , Xie, Linjing , Yang, Mingxing , Xie, Baixue , He, Shuilin et al. The Pepper Mitogen-Activated Protein Kinase CaMAPK7 Acts as a Positive Regulator in Response to Ralstonia solanacearum Infection . | FRONTIERS IN MICROBIOLOGY , 2021 , 12 .
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A conserved double-W box in the promoter of CaWRKY40 mediates autoregulation during response to pathogen attack and heat stress in pepper SCIE
期刊论文 | 2020 , 22 (1) , 3-18 | MOLECULAR PLANT PATHOLOGY
WoS CC Cited Count: 45
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Abstract :

CaWRKY40 was previously found to be transcriptionally up-regulated by Ralstonia solanacearum inoculation (RSI) or heat stress (HS), but the underlying mechanism remains unknown. Herein, we report that a double-W box-element (DWE) in the promoter of CaWRKY40 is critical for these responses. The upstream W box unit WI of this composite element is crucial for preferential binding by CaWRKY40 and responsiveness to RSI or HS. DWE-driven CaWRKY40 can be transcriptionally and nonspecifically regulated by itself and by CaWRKY58 and CaWRKY27. The DWE was also found in the promoters of CaWRKY40 orthologs, including AtWRKY40, VvWRKY40, GmWRKY40, CplWRKY40, SaWRKY40, SpWRKY40, NtWRKY40, and NaWRKY40. DWE (AtWRKY40) was analogous to DWE (CaWRKY40) by responding to RSI or HS and AtWRKY40 expression. These data suggest that a conserved response of plants to pathogen infection or HS is probably mediated by binding of the DWE by WRKY40.

Keyword :

double&#8208 double&#8208 element element pepper pepper promoter promoter Ralstonia solanacearum Ralstonia solanacearum transcription factor transcription factor W box&#8208 W box&#8208 WRKY WRKY

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GB/T 7714 Liu, Zhi-Qin , Shi, Lan-Ping , Yang, Sheng et al. A conserved double-W box in the promoter of CaWRKY40 mediates autoregulation during response to pathogen attack and heat stress in pepper [J]. | MOLECULAR PLANT PATHOLOGY , 2020 , 22 (1) : 3-18 .
MLA Liu, Zhi-Qin et al. "A conserved double-W box in the promoter of CaWRKY40 mediates autoregulation during response to pathogen attack and heat stress in pepper" . | MOLECULAR PLANT PATHOLOGY 22 . 1 (2020) : 3-18 .
APA Liu, Zhi-Qin , Shi, Lan-Ping , Yang, Sheng , Qiu, Shan-Shan , Ma, Xiao-Ling , Cai, Jin-Sen et al. A conserved double-W box in the promoter of CaWRKY40 mediates autoregulation during response to pathogen attack and heat stress in pepper . | MOLECULAR PLANT PATHOLOGY , 2020 , 22 (1) , 3-18 .
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ChiIV3 Acts as a Novel Target of WRKY40 to Mediate Pepper Immunity Against Ralstonia solanacearum Infection SCIE
期刊论文 | 2019 , 32 (9) , 1121-1133 | MOLECULAR PLANT-MICROBE INTERACTIONS
WoS CC Cited Count: 12
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ChiIV3, a chitinase of pepper (Capsicum annuum), stimulates cell death in pepper plants. However, there are only scarce reports on its role in resistance against bacterial wilt disease such as that caused by Ralstonia solanacearum and their transcriptional regulation. In this study, the silencing of ChiIV3 in pepper plants significantly reduced the resistance to R. solanacearum. The transcript of ChiIV3 was induced by R. solanacearum inoculation (RSI) as well as exogenous application of methyl jasmonate and abscisic acid. The bioinformatics analysis revealed that the ChiIV3 promoter consists of multiple stress-related cis elements, including six W-boxes and one MYBIAT. With the 5' deletion assay in the ChiIV3 promoter, the W4-box located from -640 to -635 bp was identified as the cis element that is required for the response to RSI. In addition, the W4-box element was shown to be essential for the binding of the ChiIV3 promoter by the WRKY40 transcription factor, which is known to positively regulate the defense response to R. solanacearum. Site-directed mutagenesis in the W4-box sequence impaired the binding of WRKY40 to the ChiIV3 promoter. Subsequently, the transcription of ChiIV3 decreased in WRKY40-silenced pepper plants. These results demonstrated that the expression of the defense gene ChiIV3 is controlled through multiple modes of regulation, and WRKY40 directly binds to the W4-box element of the ChiIV3 promoter region for its transcriptional regulation.

Keyword :

pathogenesis-related proteins pathogenesis-related proteins plant responses to pathogens plant responses to pathogens resistance genes resistance genes

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GB/T 7714 Liu, Zhiqin , Shi, Lanping , Weng, Yahong et al. ChiIV3 Acts as a Novel Target of WRKY40 to Mediate Pepper Immunity Against Ralstonia solanacearum Infection [J]. | MOLECULAR PLANT-MICROBE INTERACTIONS , 2019 , 32 (9) : 1121-1133 .
MLA Liu, Zhiqin et al. "ChiIV3 Acts as a Novel Target of WRKY40 to Mediate Pepper Immunity Against Ralstonia solanacearum Infection" . | MOLECULAR PLANT-MICROBE INTERACTIONS 32 . 9 (2019) : 1121-1133 .
APA Liu, Zhiqin , Shi, Lanping , Weng, Yahong , Zou, Huasong , Li, Xia , Yang, Sheng et al. ChiIV3 Acts as a Novel Target of WRKY40 to Mediate Pepper Immunity Against Ralstonia solanacearum Infection . | MOLECULAR PLANT-MICROBE INTERACTIONS , 2019 , 32 (9) , 1121-1133 .
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Functional and Promoter Analysis of ChiIV3, a Chitinase of Pepper Plant, in Response to Phytophthora capsici Infection SCIE
期刊论文 | 2017 , 18 (8) | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
WoS CC Cited Count: 40
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Despite the involvement of many members of the chitinase family in plant immunity, the precise functions of the majority of the members remain poorly understood. Herein, the gene ChiIV3 in Capsicum annuum encoding a chitinase protein containing a chitin binding domain and targeting to the plasma membrane was found to be induced by Phytophthora capsici inoculation (PCI) and applied chitin treatment. Besides its direct inhibitory effect on growth of Phytophthora capsici (P. capsici), ChiIV3 was also found by virus-induced gene silencing (VIGS) and transient overexpression (TOE) in pepper plants to act as a positive regulator of plant cell death and in triggering defense signaling and upregulation of PR (pathogenesis related) genes against PCI. A 5 deletion assay revealed that pChiIV3(-712 to -459 bp) was found to be sufficient for ChiIV3' response to PCI. Furthermore, a mutation assay indicated that W-box(-466 to -461 bp) in pChiIV3(-712 to -459 bp) was noted to be the PCI-responsible element. These results collectively suggest that ChiIV3 acts as a likely antifungal protein and as a receptor for unidentified chitin in planta to trigger cell death and defense signaling against PCI.

Keyword :

Capsicum annuum Capsicum annuum cell death cell death chitinase chitinase Phytophthora capsici Phytophthora capsici promoter promoter

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GB/T 7714 Liu, Zhiqin , Shi, Lanping , Yang, Sheng et al. Functional and Promoter Analysis of ChiIV3, a Chitinase of Pepper Plant, in Response to Phytophthora capsici Infection [J]. | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES , 2017 , 18 (8) .
MLA Liu, Zhiqin et al. "Functional and Promoter Analysis of ChiIV3, a Chitinase of Pepper Plant, in Response to Phytophthora capsici Infection" . | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 18 . 8 (2017) .
APA Liu, Zhiqin , Shi, Lanping , Yang, Sheng , Lin, Youquan , Weng, Yahong , Li, Xia et al. Functional and Promoter Analysis of ChiIV3, a Chitinase of Pepper Plant, in Response to Phytophthora capsici Infection . | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES , 2017 , 18 (8) .
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