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学者姓名:何水林

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The 14-3-3 protein CaTFT7 interacts with transcription factor CaHDZ27 to positively regulate pepper immunity against Ralstonia solanacearum SCIE
期刊论文 | 2025 , 12 (4) | HORTICULTURE RESEARCH
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Abstract :

Bacterial wilt, caused by Ralstonia solanacearum, is a devastating disease affecting plants in the Solanaceae family. In our previous study, CaHDZ27 was shown to act crucially in the pepper defense response to R. solanacearum. However, the molecular basis underlying CaHDZ27 function remains unexplored. In this study, we demonstrate that CaHDZ27 is post-translationally regulated by the 14-3-3 protein CaTFT7, which functions as a positive regulator in pepper immunity against R. solanacearum. RT-qPCR analysis revealed that CaTFT7 is transcriptionally induced by R. solanacearum infection. The data from virus-induced gene silencing revealed that CaTFT7 positively affects pepper immunity, which was further confirmed by the data of CaTFT7-overexpressing Nicotiana benthamiana. CaTFT7 interacted with CaHDZ27, thereby promoting the stability of CaHDZ27 and enhancing CaHDZ27 binding to the promoter of cysteine-rich receptor-like protein kinase 5 (CaCRK5), a gene that positively affects pepper defense against R. solanacearum. The above data indicated that CaTFT7 enhanced CaHDZ27 stability and promoted its ability to activate pepper immunity, shedding light on the mechanisms underlying pepper resistance to bacterial wilt.

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GB/T 7714 Mou, Shaoliang , Chen, Xiaodan , Cai, Jiao et al. The 14-3-3 protein CaTFT7 interacts with transcription factor CaHDZ27 to positively regulate pepper immunity against Ralstonia solanacearum [J]. | HORTICULTURE RESEARCH , 2025 , 12 (4) .
MLA Mou, Shaoliang et al. "The 14-3-3 protein CaTFT7 interacts with transcription factor CaHDZ27 to positively regulate pepper immunity against Ralstonia solanacearum" . | HORTICULTURE RESEARCH 12 . 4 (2025) .
APA Mou, Shaoliang , Chen, Xiaodan , Cai, Jiao , Zhang, Tingting , Luo, Tong , He, Shuilin . The 14-3-3 protein CaTFT7 interacts with transcription factor CaHDZ27 to positively regulate pepper immunity against Ralstonia solanacearum . | HORTICULTURE RESEARCH , 2025 , 12 (4) .
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转录组分析番茄嫁接紫色马铃薯对块茎生长的影响
会议论文 | 2025 | 第二十六届中国马铃薯大会
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Abstract :

马铃薯(Solanum tuberoum L.)作为全球第四大粮食作物,其高产稳产对保障粮食安全至关重要。近年来,耕地资源有限与病虫害压力促使生产者探索创新栽培技术。马铃薯/番茄嫁接体系因其可同步提高土地利用率与经济效益,成为研究热点。供试材料为紫色马铃薯"华颂66",番茄"金珠",试验设置自接[接穗和砧木均为紫色马铃薯"华颂66",即Potato/Potato(P/P)],嫁接[接穗为番茄"金珠",砧木为紫色马铃薯"华颂66",即Tomato/Potato(T/P)]两组处理,分别于嫁接后40 d(T1)、60 d(T2)和80 d(T3)采集块茎样本,结合Illumina NovaSeq 6000测序平台和Differential Expression analysis of Sequence data 2 (DESeq2)生物信息学分析,筛选差异基因,False discovery rate(FDR)<0.05,结果为:(1)无论是嫁接还是自接的情况,均是在生长80 d左右,块茎数目最多。嫁接后40 d,茎粗生长直径、叶片叶绿素含量和块茎数目上差异不明显,随着时间推移和植株生长,嫁接影响作用逐渐反馈在块茎生成上,嫁接后在相同的时间里,番茄嫁接马铃薯的单株块茎数明显增加,差异达到极显著水平,而叶绿素含量、块茎重差异不显著。(2)转组学分析结果表明,T1时差异表达基因(Differential expressed genes,DEGs)显著富集于微管结合(32基因,FDR=0.002)、液泡膜功能(45基因,FDR=0.005)及DNA复制(28基因,FDR=0.01)。糖酵解/糖异生(map00010)下调抑制淀粉合成。内质网蛋白质加工(map04141)上调增强蛋白折叠能力。植物激素信号转导(map04075),生长素响应因子ARF4(log2FC=-1.6)下调限制块茎膨大。嫁接通过多通路协同调控块茎发育:微管动态性降低:TUA3下调限制光合产物运输。糖酵解通量减少释放的ATP优先支持分生组织增长。HSP70上调缓解内质网应激,维持细胞稳态。通过多时间点转录组分析,揭示了嫁接紫色马铃薯块茎发育的分子调控框架:早期基因抑制主导(T1),中期代谢趋于稳定(T2),晚期分生组织效应显现(T3)。嫁接通过调控微管动态性、糖代谢重编程及胁迫响应通路,优先促进块茎分化而非膨大。未来将结合代谢组学与基因编辑技术,进一步...

Keyword :

块茎生长 块茎生长 嫁接 嫁接 紫色马铃薯 紫色马铃薯 转录组学分析 转录组学分析

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GB/T 7714 郭怡伶 , 符昌霖 , 何水林 et al. 转录组分析番茄嫁接紫色马铃薯对块茎生长的影响 [C] //第二十六届中国马铃薯大会 . 2025 .
MLA 郭怡伶 et al. "转录组分析番茄嫁接紫色马铃薯对块茎生长的影响" 第二十六届中国马铃薯大会 . (2025) .
APA 郭怡伶 , 符昌霖 , 何水林 , 郭玉春 , 张招娟 . 转录组分析番茄嫁接紫色马铃薯对块茎生长的影响 第二十六届中国马铃薯大会 . (2025) .
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Genome-Wide Identification and Expression Analyses of the Abscisic Acid Receptor PYR/PYL Gene Family in Response to Fruit Development and Exogenous Abscisic Acid in Luffa (Luffa cylindrica L.) SCIE
期刊论文 | 2025 , 15 (3) | AGRONOMY-BASEL
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The pyrabactin resistance 1-like (PYR/PYL) proteins are abscisic acid receptors that perform multiple functions in various plant growth and development processes. However, the PYR/PYL gene family in luffa (Luffa cylindrica L.) has not been well-explored. In this study, we analysed the effects of whole-genome member identification, endogenous soluble sugars (SS), soluble proteins (SP), abscisic acid (ABA), indole-3-acetic acid (IAA, auxin) and the gene expression pattern of PYR/PYL influenced by exogenous abscisic acid (ABA) during the fruit development of luffa through the use of physiological and biochemical analyses, bioinformatics, and RT-qPCR techniques. We conducted a comprehensive genome-wide identification and characterisation of the PYR/PYL gene family in luffa fruit development. Four LcPYR and 10 LcPYL genes were identified in the luffa reference genome via bioinformatics analyses. A chromosomal mapping of the identified LcPYR/PYL genes showed that they were distributed on 9 of the 13 chromosomes in the luffa genome. Conserved structural domain analyses of the 14 proteins encoded by the LcPYR/PYL genes identified the PYR_PYL_RCAR_like structural domains typical of this family; however, no regulatory component of abscisic acid receptor (RCAR)-type genes was found. At six luffa fruit development stages (i.e., 0, 3, 6, 9, 12, and 15 days after pollination), the contents of soluble sugars, soluble proteins, and endogenous hormones ABA and IAA in the fruit significantly increased. Under the exogenous ABA treatments, the contents of these four endogenous substances in the fruits were significantly higher than they were in the control group at the same time period, and ABA and IAA seemed to be synergistically involved in the luffa fruit-ripening process. An analysis of the luffa transcriptome data and real-time fluorescence quantitative PCR (RT-qPCR) experiments showed that multiple LcPYR/PYLs (e.g., LcPYL10 and LcPYR4) had differential expression levels in the seven different tissues and exogenous ABA-treated fruits that were analysed, suggesting their roles in ABA hormone-mediated ripening of luffa fruit. Together, the results provide basic information about the LcPYR/PYL family in L. cylindrica and their involvement in fruit development.

Keyword :

expression analysis expression analysis fruit development fruit development genome-wide identification genome-wide identification Luffa cylindrica Luffa cylindrica PYR/PYL PYR/PYL

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GB/T 7714 Liu, Jianting , Wang, Yuqian , Li, Zuliang et al. Genome-Wide Identification and Expression Analyses of the Abscisic Acid Receptor PYR/PYL Gene Family in Response to Fruit Development and Exogenous Abscisic Acid in Luffa (Luffa cylindrica L.) [J]. | AGRONOMY-BASEL , 2025 , 15 (3) .
MLA Liu, Jianting et al. "Genome-Wide Identification and Expression Analyses of the Abscisic Acid Receptor PYR/PYL Gene Family in Response to Fruit Development and Exogenous Abscisic Acid in Luffa (Luffa cylindrica L.)" . | AGRONOMY-BASEL 15 . 3 (2025) .
APA Liu, Jianting , Wang, Yuqian , Li, Zuliang , Wen, Qingfang , Zhu, Haisheng , He, Shuilin . Genome-Wide Identification and Expression Analyses of the Abscisic Acid Receptor PYR/PYL Gene Family in Response to Fruit Development and Exogenous Abscisic Acid in Luffa (Luffa cylindrica L.) . | AGRONOMY-BASEL , 2025 , 15 (3) .
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Isolation of the AP2/ERF transcription factor CaERF14 in pepper and functional characterization under salinity and dehydration stress SCIE
期刊论文 | 2025 , 15 (1) | SCIENTIFIC REPORTS
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Ethylene-responsive factors (ERF) are typically considered to play diverse roles in the plant's response to biotic and abiotic stresses. In this study, an ERF gene, CaERF14 was isolated from the pepper transcriptome database. The gene is 1,572 bp in length, containing an open reading frame (ORF) of 849 bp, which encodes a putative polypeptide of 283 amino acids with a theoretical molecular weight of 31.75 kDa. At the N-terminal, there is a conserved sequence of CMX-1 specific to the Xa subfamily of the ERF family. CaERF14 is located in the nucleus and part of the cell membrane, interacting with the GCC-box to regulate the expression of downstream related genes. Results from the expression profile show that CaERF14 has a higher expression level in parts of the floral and stem. Additionally, this gene can not only respond to the drought, NaCl, and Ralstonia solanacearum, but also be induced by signaling molecules (ABA, MeJA, Ethephon, SA, and auxins). Furthermore, the CaERF14 derived from peppers was transformed into the model plant tobacco. Regardless of the NaCl, mannitol, or soil drought stress tested for seed germination or seedling growth in in vitro or in vivo culture, this gene exhibits salt and drought tolerance function. These results suggest that CaERF14 is involved in the regulation of defense response to salinity and dehydration stress.

Keyword :

Drought stress Drought stress Ethylene-responsive factor Ethylene-responsive factor Functional expression Functional expression Pepper Pepper Salt stress Salt stress Transgenic plant Transgenic plant

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GB/T 7714 Feng, Donglin , He, Shuilin , Chung, Jen-Ping . Isolation of the AP2/ERF transcription factor CaERF14 in pepper and functional characterization under salinity and dehydration stress [J]. | SCIENTIFIC REPORTS , 2025 , 15 (1) .
MLA Feng, Donglin et al. "Isolation of the AP2/ERF transcription factor CaERF14 in pepper and functional characterization under salinity and dehydration stress" . | SCIENTIFIC REPORTS 15 . 1 (2025) .
APA Feng, Donglin , He, Shuilin , Chung, Jen-Ping . Isolation of the AP2/ERF transcription factor CaERF14 in pepper and functional characterization under salinity and dehydration stress . | SCIENTIFIC REPORTS , 2025 , 15 (1) .
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转录组分析番茄嫁接紫色马铃薯对块茎生长的影响
会议论文 | 2025 , 272-272 | 2025年第二十六届中国马铃薯大会
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马铃薯(Solanum tuberosum L.)作为全球第四大粮食作物,其高产稳产对保障粮食安全至关重要.近年来,耕地资源有限与病虫害压力促使生产者探索创新栽培技术.马铃薯/番茄嫁接体系因其可同步提高土地利用率与经济效益,成为研究热点.

Keyword :

块茎生长 块茎生长 嫁接 嫁接 紫色马铃薯 紫色马铃薯 转录组学分析 转录组学分析

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GB/T 7714 郭怡伶 , 符昌霖 , 何水林 et al. 转录组分析番茄嫁接紫色马铃薯对块茎生长的影响 [C] //2025年第二十六届中国马铃薯大会论文集 . 2025 : 272-272 .
MLA 郭怡伶 et al. "转录组分析番茄嫁接紫色马铃薯对块茎生长的影响" 2025年第二十六届中国马铃薯大会论文集 . (2025) : 272-272 .
APA 郭怡伶 , 符昌霖 , 何水林 , 郭玉春 , 张招娟 . 转录组分析番茄嫁接紫色马铃薯对块茎生长的影响 2025年第二十六届中国马铃薯大会论文集 . (2025) : 272-272 .
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Identification of WRKY Family Members and Characterization of the Low-Temperature-Stress-Responsive WRKY Genes in Luffa (Luffa cylindrica L.) SCIE
期刊论文 | 2024 , 13 (5) | PLANTS-BASEL
WoS CC Cited Count: 5
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The plant-specific WRKY transcription factor family members have diverse regulatory effects on the genes associated with many plant processes. Although the WRKY proteins in Arabidopsis thaliana and other species have been thoroughly investigated, there has been relatively little research on the WRKY family in Luffa cylindrica, which is one of the most widely grown vegetables in China. In this study, we performed a genome-wide analysis to identify L. cylindrica WRKY genes, which were subsequently classified and examined in terms of their gene structures, chromosomal locations, promoter cis-acting elements, and responses to abiotic stress. A total of 62 LcWRKY genes (471-2238 bp) were identified and divided into three phylogenetic groups (I, II, and III), with group II further divided into five subgroups (IIa, IIb, IIc, IId, and IIe) in accordance with the classification in other plants. The LcWRKY genes were unevenly distributed across 13 chromosomes. The gene structure analysis indicated that the LcWRKY genes contained 0-11 introns (average of 4.4). Moreover, 20 motifs were detected in the LcWRKY proteins with conserved motifs among the different phylogenetic groups. Two subgroup IIc members (LcWRKY16 and LcWRKY31) contained the WRKY sequence variant WRKYGKK. Additionally, nine cis-acting elements related to diverse responses to environmental stimuli were identified in the LcWRKY promoters. The subcellular localization analysis indicated that three LcWRKY proteins (LcWRKY43, LcWRKY7, and LcWRKY23) are localized in the nucleus. The tissue-specific LcWRKY expression profiles reflected the diversity in LcWRKY expression. The RNA-seq data revealed the effects of low-temperature stress on LcWRKY expression. The cold-induced changes in expression were verified via a qRT-PCR analysis of 24 differentially expressed WRKY genes. Both LcWRKY7 and LcWRKY12 were highly responsive to the low-temperature treatment (approximately 110-fold increase in expression). Furthermore, the LcWRKY8, LcWRKY12, and LcWRKY59 expression levels increased by more than 25-fold under cold conditions. Our findings will help clarify the evolution of the luffa WRKY family while also providing valuable insights for future studies on WRKY functions.

Keyword :

abiotic stress abiotic stress expression analysis expression analysis Luffa cylindrica Luffa cylindrica WRKY transcription factors WRKY transcription factors

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GB/T 7714 Liu, Jianting , Peng, Lijuan , Cao, Chengjuan et al. Identification of WRKY Family Members and Characterization of the Low-Temperature-Stress-Responsive WRKY Genes in Luffa (Luffa cylindrica L.) [J]. | PLANTS-BASEL , 2024 , 13 (5) .
MLA Liu, Jianting et al. "Identification of WRKY Family Members and Characterization of the Low-Temperature-Stress-Responsive WRKY Genes in Luffa (Luffa cylindrica L.)" . | PLANTS-BASEL 13 . 5 (2024) .
APA Liu, Jianting , Peng, Lijuan , Cao, Chengjuan , Bai, Changhui , Wang, Yuqian , Li, Zuliang et al. Identification of WRKY Family Members and Characterization of the Low-Temperature-Stress-Responsive WRKY Genes in Luffa (Luffa cylindrica L.) . | PLANTS-BASEL , 2024 , 13 (5) .
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CaZingipain2 Acts Positively in Pepper (Capsicum annuum L.) Immunity against R. solanacearum SCIE
期刊论文 | 2024 , 13 (18) | PLANTS-BASEL
WoS CC Cited Count: 2
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Bacterial wilt caused by Ralstonia solanacearum is one of the most important diseases in solanaceous plants, including peppers. It generally tends to be more serious under warm-temperature and moist (WM) conditions than at moist room-temperature (RM) conditions. Although immunity mechanisms at room temperature have been intensively studied, the mechanisms underlying WM conditions remain poorly understood. Herein, the pepper cysteine protease CaZingipain2 was expressed and functionally characterized in pepper immunity against R. solanacearum at WM conditions and at room temperature. The results showed that CaZingipain2 localized to the nucleus and was upregulated at the transcript level in pepper plants upon R. solanacearum infection under WM conditions (RSWM). Virus-induced gene silencing of CaZingipain2 significantly increased the susceptibility of pepper plants to RSWM, and was coupled with the downregulation of CaPRP1 and CaMgst3, which are specifically related to pepper immunity against RSWM, according to our previous studies, while its overexpression significantly reduced the susceptibility of N. benethamiana plants to RSWM compared to that of wild-type plants. In addition, our data showed that CaZingipain2 also acts positively in pepper immunity against R. solanacearum infection at room temperature by upregulating the SA- and JA-responsive PR genes, including CaNPR1 and CaDEF1. All these results indicate that CaZingipain2 improves pepper immunity against R. solanacearum under WM conditions and at room temperature by regulating different PR genes.

Keyword :

ginger protease ginger protease pepper pepper R. solanacearum R. solanacearum Zingipain Zingipain

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GB/T 7714 Wu, Ruijie , Wu, Zhen , Qing, Yalin et al. CaZingipain2 Acts Positively in Pepper (Capsicum annuum L.) Immunity against R. solanacearum [J]. | PLANTS-BASEL , 2024 , 13 (18) .
MLA Wu, Ruijie et al. "CaZingipain2 Acts Positively in Pepper (Capsicum annuum L.) Immunity against R. solanacearum" . | PLANTS-BASEL 13 . 18 (2024) .
APA Wu, Ruijie , Wu, Zhen , Qing, Yalin , Duan, Chenfeng , Guo, Yiling , Zhang, Xujing et al. CaZingipain2 Acts Positively in Pepper (Capsicum annuum L.) Immunity against R. solanacearum . | PLANTS-BASEL , 2024 , 13 (18) .
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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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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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Transcription factor CaHDZ15 promotes pepper basal thermotolerance by activating HEAT SHOCK FACTORA6a SCIE
期刊论文 | 2024 , 195 (1) , 812-831 | PLANT PHYSIOLOGY
WoS CC Cited Count: 10
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High temperature stress (HTS) is a serious threat to plant growth and development and to crop production in the context of global warming, and plant response to HTS is largely regulated at the transcriptional level by the actions of various transcription factors (TFs). However, whether and how homeodomain-leucine zipper (HD-Zip) TFs are involved in thermotolerance are unclear. Herein, we functionally characterized a pepper (Capsicum annuum) HD-Zip I TF CaHDZ15. CaHDZ15 expression was upregulated by HTS and abscisic acid in basal thermotolerance via loss- and gain-of-function assays by virus-induced gene silencing in pepper and overexpression in Nicotiana benthamiana plants. CaHDZ15 acted positively in pepper basal thermotolerance by directly targeting and activating HEAT SHOCK FACTORA6a (HSFA6a), which further activated CaHSFA2. In addition, CaHDZ15 interacted with HEAT SHOCK PROTEIN 70-2 (CaHsp70-2) and glyceraldehyde-3-phosphate dehydrogenase1 (CaGAPC1), both of which positively affected pepper thermotolerance. CaHsp70-2 and CaGAPC1 promoted CaHDZ15 binding to the promoter of CaHSFA6a, thus enhancing its transcription. Furthermore, CaHDZ15 and CaGAPC1 were protected from 26S proteasome-mediated degradation by CaHsp70-2 via physical interaction. These results collectively indicate that CaHDZ15, modulated by the interacting partners CaGAPC1 and CaHsp70-2, promotes basal thermotolerance by directly activating the transcript of CaHSFA6a. Thus, a molecular linkage is established among CaHsp70-2, CaGAPC1, and CaHDZ15 to transcriptionally modulate CaHSFA6a in pepper thermotolerance. The transcription factor CaHDZ15, modulated by cytoplasmic glyceraldehyde-3-phosphate dehydrogenase1 and heat shock protein 70-2, promotes pepper thermotolerance by activating HEAT SHOCK FACTORA6a.

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GB/T 7714 Mou, Shaoliang , He, Weihong , Jiang, Haitao et al. Transcription factor CaHDZ15 promotes pepper basal thermotolerance by activating HEAT SHOCK FACTORA6a [J]. | PLANT PHYSIOLOGY , 2024 , 195 (1) : 812-831 .
MLA Mou, Shaoliang et al. "Transcription factor CaHDZ15 promotes pepper basal thermotolerance by activating HEAT SHOCK FACTORA6a" . | PLANT PHYSIOLOGY 195 . 1 (2024) : 812-831 .
APA Mou, Shaoliang , He, Weihong , Jiang, Haitao , Meng, Qianqian , Zhang, Tingting , Liu, Zhiqin et al. Transcription factor CaHDZ15 promotes pepper basal thermotolerance by activating HEAT SHOCK FACTORA6a . | PLANT PHYSIOLOGY , 2024 , 195 (1) , 812-831 .
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CaIAA2-CaARF9 module mediates the trade-off between pepper growth and immunity SCIE
期刊论文 | 2024 , 22 (7) , 2054-2074 | PLANT BIOTECHNOLOGY JOURNAL
WoS CC Cited Count: 3
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Abstract :

To challenge the invasion of various pathogens, plants re-direct their resources from plant growth to an innate immune defence system. However, the underlying mechanism that coordinates the induction of the host immune response and the suppression of plant growth remains unclear. Here we demonstrate that an auxin response factor, CaARF9, has dual roles in enhancing the immune resistance to Ralstonia solanacearum infection and in retarding plant growth by repressing the expression of its target genes as exemplified by Casmc4, CaLBD37, CaAPK1b and CaRROP1. The expression of these target genes not only stimulates plant growth but also negatively impacts pepper resistance to R. solanacearum. Under normal conditions, the expression of Casmc4, CaLBD37, CaAPK1b and CaRROP1 is active when promoter-bound CaARF9 is complexed with CaIAA2. Under R. solanacearum infection, however, degradation of CaIAA2 is triggered by SA and JA-mediated signalling defence by the ubiquitin-proteasome system, which enables CaARF9 in the absence of CaIAA2 to repress the expression of Casmc4, CaLBD37, CaAPK1b and CaRROP1 and, in turn, impeding plant growth while facilitating plant defence to R. solanacearum infection. Our findings uncover an exquisite mechanism underlying the trade-off between plant growth and immunity mediated by the transcriptional repressor CaARF9 and its deactivation when complexed with CaIAA2.

Keyword :

ARF ARF Capsicum annuum Capsicum annuum IAA IAA Ralstonia solanacearum infection Ralstonia solanacearum infection

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GB/T 7714 Cai, Weiwei , Tao, Yilin , Cheng, Xingge et al. CaIAA2-CaARF9 module mediates the trade-off between pepper growth and immunity [J]. | PLANT BIOTECHNOLOGY JOURNAL , 2024 , 22 (7) : 2054-2074 .
MLA Cai, Weiwei et al. "CaIAA2-CaARF9 module mediates the trade-off between pepper growth and immunity" . | PLANT BIOTECHNOLOGY JOURNAL 22 . 7 (2024) : 2054-2074 .
APA Cai, Weiwei , Tao, Yilin , Cheng, Xingge , Wan, Meiyun , Gan, Jianghuang , Yang, Sheng et al. CaIAA2-CaARF9 module mediates the trade-off between pepper growth and immunity . | PLANT BIOTECHNOLOGY JOURNAL , 2024 , 22 (7) , 2054-2074 .
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