{"title":"SlNAC12, a novel NAC-type transcription factor, confers salt stress tolerance in tomato.","authors":"Siqi Chen, Wenxin Zhang, Qi Zhang, Bin Li, Mingzhe Zhang, Jianchun Qin, Wuliang Shi, Chengguo Jia","doi":"10.1007/s00299-024-03400-x","DOIUrl":"10.1007/s00299-024-03400-x","url":null,"abstract":"<p><strong>Key message: </strong>SlNAC12 enhances salt stress tolerance of transgenic tomato by regulating ion homeostasis, antioxidant activity and flavonoids biosynthesis Soil salinization is a major environmental factor that adversely affects plant growth and development. NAC (NAM, ATAF1/2, and CUC2) is a large family of plant-specific transcription factors that play crucial roles in stress response. Here, we investigated the role of a novel NAC transcription factor, SlNAC12, in conferring salt stress tolerance in tomato (Solanum lycopersicum). Subcellular localization and yeast assays studies revealed that SlNAC12 is localized in the nucleus with weak transcriptional activity. SlNAC12 transcript was induced by salt stress in the leaves and roots of tomato seedlings. Overexpression of SlNAC12 in tomato led to significantly reduced plant height and root length. Transgenic tomato lines overexpressing of SlNAC12 (OE#1 and OE#3) exhibited enhanced tolerance to salinity, as evidenced by reduced the inhibitory effect of growth parameters under salt stress compared to wild type (WT). Overexpression of SlNAC12 in tomato affected Na<sup>+</sup> and K<sup>+</sup> homeostasis, leading to reduced Na<sup>+</sup>/K<sup>+</sup> ratio, enhanced activity of antioxidant enzymes and decreased reactive oxygen species (ROS) accumulation under salt stress. Furthermore, the transcript levels of several genes involved in flavonoids metabolism and the levels of flavonoids accumulation were increased in SlNAC12-overexpressing tomato lines. Collectively, this study suggests that SlNAC12 transcription factor enhances salt stress tolerance in tomato is correlated with ion homeostasis, antioxidant enzyme systems, and flavonoids accumulation.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"44 1","pages":"5"},"PeriodicalIF":5.3,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identification of dehydrin family genes in three Medicago species and insights into their tolerant mechanism to salt stress.","authors":"Xiuxiu Zhang, Xiuzhi Xia, Yu Sun, Runze Wang, Kemeng Liang, Yarong Wang, Lifei Ren, Qin Wang","doi":"10.1007/s00299-024-03395-5","DOIUrl":"10.1007/s00299-024-03395-5","url":null,"abstract":"<p><strong>Key message: </strong>All ten dehydrin genes from three Medicago species are responsive to different kinds of abiotic stress, and CAS31 confers transgenic plants salt tolerance by down-regulating HKT1 expression. Dehydrins are protective proteins playing crucial roles in the tolerance of plants to abiotic stresses. However, a full-scale and systemic analysis of total dehydrin genes in Medicago at the genome level is still lacking. In this study, we identified ten dehydrin genes from three Medicago species (M. truncatula, M. ruthenica, and M. sativa), categorizing the coding proteins into four types. Genome collinearity analysis among the three Medicago species revealed six orthologous gene pairs. Promoter regions of dehydrin genes contained various phytohormone- and stress-related cis-elements, and transcriptome analysis showed up-regulation of all ten dehydrin genes under different stress conditions. Transformation of dehydrin gene CAS31 increased the tolerance of transgenic seedlings compared with wild-type seedlings under salt stress. Our study demonstrated that transgenic seedlings maintained the more chlorophyll, accumulated more proline and less hydrogen peroxide and malondialdehyde than wild-type seedlings under salt stress. Further study revealed that CAS31 reduced Na<sup>+</sup> accumulation by down-regulating HKT1 expression under salt stress. These findings enhance our understanding of the dehydrin gene family in three Medicago species and provide insights into their mechanisms of tolerance.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"44 1","pages":"4"},"PeriodicalIF":5.3,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yan Chen, Xingpeng Kou, Wenjun Lian, Jiawen Hua, Yiqing Wang, Yang Chen, Qiao Wang, Guohua Chai, Yue Bai
{"title":"Evolution and functional characterization of Populus salt stress-responsive calcineurin B-like protein-interacting protein kinases.","authors":"Yan Chen, Xingpeng Kou, Wenjun Lian, Jiawen Hua, Yiqing Wang, Yang Chen, Qiao Wang, Guohua Chai, Yue Bai","doi":"10.1007/s00299-024-03396-4","DOIUrl":"10.1007/s00299-024-03396-4","url":null,"abstract":"<p><strong>Key message: </strong>Identification of salt-responsive calcineurin B-like protein-interacting protein kinases (CIPKs) in Populus. Calcineurin B-like protein-interacting protein kinases (CIPKs) play vital roles in plant growth and abiotic stress responses. Currently, the regulatory mechanisms underlying these processes mediated by CIPK proteins are not completely understood in woody species. This study provided the first systematic analysis of 31 Populus CIPK genes and investigated their evolutionary relationships, gene structures, motif compositions, and salt stress responses. A total of 11 pairs of paralogous PtCIPK genes were identified, of which three pairs may be resulted from whole genome duplication, and two pairs that may be created by tandem duplications. RT-qPCR analysis revealed that 93.5% (29/31) genes showed altered expression levels in roots after salt treatment. Ectopic expression of PdCIPK21 or PdCIPK31 in Arabidopsis resulted in significant increases of seed germination, root elongation and fresh weight under salt stress conditions. Cytological observation revealed that PdCIPK21/31 overexpression lines showed increased number, lumen area and cell wall thickness of xylem vessels, and higher lignin content in stems compared with the wild type, with decreased sensitivity to long-term salt stress treatment. Our results suggest that PdCIPK21/31 serve as candidate genes for improving wood production and enhancing salt tolerance of tree species.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"44 1","pages":"3"},"PeriodicalIF":5.3,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142807403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhancing salicylic acid levels by its exogenous pretreatment to mitigate Fusarium oxysporum-induced biotic stress in Vigna mungo: defense pathways insights.","authors":"Lucky Duhan, Deepak Kumar, Ritu Pasrija","doi":"10.1007/s00299-024-03394-6","DOIUrl":"10.1007/s00299-024-03394-6","url":null,"abstract":"<p><strong>Key message: </strong>Fusarium oxysporum disrupts redox homeostasis in Vigna mungo, likely by interfering with salicylic acid signaling, which can be ameliorated by boosting PAL and its related pathways via salicylic acid pretreatment. Fusarium oxysporum, a widespread soil-borne fungus, significantly threatens global crops. This study centers on elucidating the infection strategies employed by F. oxysporum against a new and underexplored host Vigna mungo, a leguminous crop of high agronomic value, and the defense mechanisms that can be activated against the infection, aiming to uncover how these responses can be leveraged to develop potential countermeasures. Building on prior work demonstrating the in vitro antifungal efficacy of phytohormones, including salicylic acid (SA), this study further investigates SA pretreatment at 100 µM, which previously reduced reactive oxygen species (ROS) and improved germination under Fusarium stress. Through a comprehensive analysis of V. mungo plants pretreated with SA and subjected to F. oxysporum infection, we observed that fungal exposure reduced growth, chlorophyll content, and levels of proteins, phenolics and flavonoids, while increasing stress markers and antioxidant activity. SA pretreatment mitigated these effects by boosting antioxidant molecules and activating the phenylalanine ammonia-lyase (PAL) pathway, thereby enhancing endogenous SA and ROS scavenging. Furthermore, qRT-PCR analysis confirmed SA-mediated upregulation of antioxidant (catalase and peroxidase), fungal stress response genes ((pathogenesis-related gene 4 (PR4) and defensin (DEF)) and SA synthesis and regulator genes (PAL and WRKY70) involved in plant systemic resistance, while LC-MS data revealed an altered metabolic profile with increased phytoalexins and antioxidants synthesis. Overall, SA pretreatment confers resistance against F. oxysporum in V. mungo by modulating endogenous SA and metabolic profile to activate key defense pathways and redox homeostasis, highlighting its potential in plant defense strategies and reinforcing our proposed model of SA action.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"44 1","pages":"2"},"PeriodicalIF":5.3,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142802017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiangru Zhou, Kun Cao, Jinhao Meng, Hongwei Xu, Xiaofu Zhou
{"title":"Strigolactone modulates phenolic acid accumulation and thereby improves tolerance to UV-B stress in Rhododendron chrysanthum Pall.","authors":"Xiangru Zhou, Kun Cao, Jinhao Meng, Hongwei Xu, Xiaofu Zhou","doi":"10.1007/s00299-024-03393-7","DOIUrl":"10.1007/s00299-024-03393-7","url":null,"abstract":"<p><strong>Key message: </strong>Multi-omics studies have shown that strigolactone modulates phenolic acid accumulation in the leaves of R. chrysanthum and can enable it to cope with UV-B stress. UV-B stress is an abiotic stress that plants will inevitably suffer during growth and can seriously affect the normal physiological state of plants. Strigolactone, a phytohormone, has been less studied and it is important to investigate its regulation of plant growth under UV-B radiation. In the present study, we investigated the changes in leaves of Rhododendron chrysanthum Pall. (R. chrysanthum) under UV-B radiation. The leaves of R. chrysanthum were collected for widely targeted metabolomics, hormonomics, transcriptomics, proteomics and acetylated proteomics assays. The results showed that the leaves of R. chrysanthum were able to produce a large amount of differential phenolic acids with antioxidant effects under UV-B stress, the content of strigolactone was significantly elevated, and the genes and proteins involved in phenolic acid biosynthesis and strigolactone biosynthesis were significantly altered, and some of the proteins (ASP1, 4CLL7, and CCD1) underwent acetylation modification. Meanwhile, correlation analysis showed that strigolactone was strongly correlated with differential phenolic acids, which might regulate the adaptive responses of the R. chrysanthum under UV-B stress. In this paper, we investigated the effects of strigolactone on the accumulation of phenolic acid compounds and found a strong correlation between strigolactone and elevated phenolic acid levels, which provided insights into the molecular mechanism of plant regulation of phenolic acid accumulation, and facilitated the adoption of measures to mitigate the adverse effects of UV-B stress on plant growth, and to achieve the purpose of protecting plant germplasm resources.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"44 1","pages":"1"},"PeriodicalIF":5.3,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142792352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yerin Kim, Hyunjoo Hwang, Sohee Lim, Daehwan Lee, Kibum Kim, Eunjeong Kang, Sayeon Cho, Yoojin Oh, Peter Hinterdorfer, Hyun Jung Lee, Kisung Ko
{"title":"Plant-derived EpCAM-Fc fusion proteins induce in vivo immune response to produce IgGs inhibiting invasion and migration of colorectal cancer cells.","authors":"Yerin Kim, Hyunjoo Hwang, Sohee Lim, Daehwan Lee, Kibum Kim, Eunjeong Kang, Sayeon Cho, Yoojin Oh, Peter Hinterdorfer, Hyun Jung Lee, Kisung Ko","doi":"10.1007/s00299-024-03377-7","DOIUrl":"10.1007/s00299-024-03377-7","url":null,"abstract":"<p><strong>Key message: </strong>Transgenic tobacco plant expressed EpCAM-Fc fusion proteins to induce in vivo immune responses producing anti-EpCAM antibodies inhibiting human colorectal cancer cell invasion and migration. Plant is emerging as a promising alternative to produce valuable immunotherapeutic vaccines. In this study, we examined the in vivo anti-cancer efficacy of epidermal cell adhesion molecule (EpCAM)-Fc and EpCAM-FcK fusion proteins produced in transgenic plants as colorectal cancer vaccine candidates. Mice were injected with plant-derived EpCAM-Fc (EpCAM-Fc<sup>P</sup>) and EpCAM-Fc<sup>P</sup> tagged with KDEL (ER retention signal) (EpCAM-FcK<sup>P</sup>), using mammalian-derived EpCAM-Fc (EpCAM-Fc<sup>M</sup>) as positive control. Total IgGs from the immunized mice were used to assess immune responses. ELISA tests revealed that IgGs from mice immunized with EpCAM-FcK<sup>P</sup> (EpCAM-FcK<sup>P</sup> IgG) exhibited the highest absorbance value for binding affinity to recombinant EpCAM-Fc<sup>M</sup> compared to IgGs from mice immunized with EpCAM-Fc<sup>P</sup> (EpCAM-Fc<sup>P</sup> IgG) and EpCAM-Fc<sup>M</sup> (EpCAM-Fc<sup>M</sup> IgG). Bio-layer interferometry revealed that EpCAM-FcK<sup>P</sup> IgG had a higher affinity value than EpCAM-Fc<sup>M</sup> IgG and EpCAM-Fc<sup>P</sup> IgG. Cell ELISA revealed that EpCAM-FcK<sup>P</sup> IgG exhibited the highest binding activity to EpCAM-positive cells SW480 and SW620 compared to EpCAM-Fc<sup>P</sup> IgG, EpCAM-Fc<sup>M</sup> IgG, and anti-EpCAM mAb. In the transwell invasion assay, EpCAM-FcK<sup>P</sup> IgG significantly decreased the numbers of invaded SW480 and SW620 cells compared to EpCAM-Fc<sup>P</sup> IgG, whereas EpCAM-Fc<sup>M</sup> IgG had similar numbers. In the wound healing assay, EpCAM-FcK<sup>P</sup> IgG showed higher migration inhibition compared to EpCAM-Fc<sup>P</sup> IgG in both cell types, with similar results to EpCAM-Fc<sup>M</sup> IgG in SW620 cells. These results confirm the applicability of plant systems to produce EpCAM-Fc vaccine candidates, inducing the production of anti-EpCAM IgGs against colorectal cancer cells.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"43 12","pages":"302"},"PeriodicalIF":5.3,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"MsDUF3700 overexpression enhances aluminum tolerance in alfalfa shoots.","authors":"Jiamin Cao, Tingting Wang, Dian Yu, Junyi He, Wenwu Qian, Bingxia Tang, Xiaojing Bi, Hui Wang, Yunwei Zhang","doi":"10.1007/s00299-024-03385-7","DOIUrl":"10.1007/s00299-024-03385-7","url":null,"abstract":"<p><strong>Key message: </strong>This study identified a gene associated with aluminum stress through GWAS, which regulates aluminum tolerance in alfalfa by contributing to the antioxidant system. Aluminum (Al) ions precipitate in acidic soils with a pH < 5.5, where they are absorbed alongside other nutrients by plants, negatively impacting plant growth. Alfalfa, the most widely grown perennial legume forage in the world, is especially vulnerable to acidic soil conditions. Our research pinpointed MsDUF3700 as a potential gene linked to Al-response traits via genome-wide association analysis in Medicago sativa. MsDUF3700 encodes the domain of unknown function (DUF). We observed higher expression of MsDUF3700 in Al-tolerant alfalfa compared to Al-sensitive ecotypes. MsDUF3700-overexpressing transgenic alfalfa (MsDUF3700-OE) showed shorter root elongation and higher Al accumulation in roots than wild type (WT) under Al conditions. However, the shoots of MsDUF3700-OE lines showed enhanced growth rates under both normal and Al stress conditions. Under Al stress, MsDUF3700-OE lines showed increased H<sub>2</sub>O<sub>2</sub> and malondialdehyde (MDA) levels in the roots, alongside reduced catalase activity, In contrast, the shoots showed an inverse trend. In addition, we found that MsDUF3700-OE alfalfa plants had high Al accumulation in the roots and low Al accumulation in the shoots. Transcripts of MsALS3 and MsPALT1, homologs of Al translocation in alfalfa, were downregulated, while MsNrat1, a homolog of transporters absorb Al, was upregulated in the roots of MsDUF3700-OE in alfalfa. Our research indicates that MsDUF3700 plays a role in aluminum stress by participating in antioxidative defense and facilitating aluminum transport from roots to shoots.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"43 12","pages":"301"},"PeriodicalIF":5.3,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unraveling the genetic basis of Rhizobium rhizogenes-mediated transformation and hairy root formation in rose using a genome-wide association study.","authors":"Philipp Rüter, Thomas Debener, Traud Winkelmann","doi":"10.1007/s00299-024-03388-4","DOIUrl":"10.1007/s00299-024-03388-4","url":null,"abstract":"<p><strong>Key message: </strong>Multiple QTLs reveal the polygenic nature of R. rhizogenes-mediated transformation and hairy root formation in roses, with five key regions explaining 12.0-26.9% of trait variability and transformation-related candidate genes identified. Understanding genetic mechanisms of plant transformation remains crucial for biotechnology. This is particularly relevant for roses and other woody ornamentals that exhibit recalcitrant behavior in transformation procedures. Rhizobium rhizogenes-mediated transformation leading to hairy root (HR) formation provides an excellent model system to study transformation processes and host-pathogen interactions. Therefore, this study aimed to identify quantitative trait loci (QTLs) associated with HR formation and explore their relationship with adventitious root (AR) formation in rose as a model for woody ornamentals. A diversity panel of 104 in vitro grown rose genotypes was transformed with R. rhizogenes strain ATCC 15834 carrying a green fluorescent protein reporter gene. Phenotypic data on callus and root formation were collected for laminae and petioles. A genome-wide association study using 23,419 single-nucleotide polymorphism markers revealed significant QTLs on chromosomes one and two for root formation traits. Five key genomic regions explained 12.0-26.9% of trait variability, with some peaks overlapping previously reported QTLs for AR formation. This genetic overlap was supported by weak to moderate correlations between HR and AR formation traits, particularly in petioles. Candidate gene identification through literature review and transcriptomic data analysis revealed ten candidate genes involved in bacterial response, hormone signaling, and stress responses. Our findings provide new insights into the genetic control of HR formation in roses and highlight potential targets for improving transformation efficiency in ornamental crops, thereby facilitating future research and breeding applications.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"43 12","pages":"300"},"PeriodicalIF":5.3,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11615123/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yanling Chen, Yaxin Gou, Tingchen Huang, Yao Chen, Chuihuai You, Youxiong Que, Shiwu Gao, Yachun Su
{"title":"Characterization of the chitinase gene family in Saccharum reveals the disease resistance mechanism of ScChiVII1.","authors":"Yanling Chen, Yaxin Gou, Tingchen Huang, Yao Chen, Chuihuai You, Youxiong Que, Shiwu Gao, Yachun Su","doi":"10.1007/s00299-024-03389-3","DOIUrl":"10.1007/s00299-024-03389-3","url":null,"abstract":"<p><strong>Key message: </strong>A chitinase gene ScChiVII1 which is involved in defense against pathogen stress was characterized in sugarcane. Chitinases, a subclass of pathogenesis-related proteins, catalyze chitin hydrolysis and play a key role in plant defense against chitin-containing pathogens. However, there is little research on disease resistance analysis of chitinase genes in sugarcane, and the systematic identification of their gene families has not been reported. In this study, 85 SsChi and 23 ShChi genes, which were divided into 6 groups, were identified from the wild sugarcane species Saccharum spontaneum and Saccharum hybrid cultivar R570, respectively. Transcriptome analysis and real-time quantitative PCR revealed that SsChi genes responded to smut pathogen stress. The chitinase crude extracted from the leaves of transgenic Nicotiana benthamiana plants overexpressing ScChiVII1 (a homologous gene of SsChi22a) inhibited the hyphal growth of Fusarium solani var. coeruleum and Sporisorium scitamineum. Notably, the chitinase and catalase activities and the jasmonic acid content in the leaves of ScChiVII1 transgenic N. benthamiana increased after inoculation with F solani var. coeruleum, but the salicylic acid, hydrogen peroxide, and malondialdehyde contents decreased. Comprehensive RNA sequencing of leaves before (0 day) and after inoculation (2 days) revealed that ScChiVII1 transgenic tobacco enhanced plant disease resistance by activating transcription factors and disease resistance-related signaling pathways, and modulating the expression of genes involved in the hypersensitive response and ethylene synthesis pathways. Taken together, this study provides comprehensive information on the chitinase gene family and offers potential genetic resources for disease resistance breeding in sugarcane.</p>","PeriodicalId":20204,"journal":{"name":"Plant Cell Reports","volume":"43 12","pages":"299"},"PeriodicalIF":5.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142771634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}