Molecular plant pathology最新文献

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Regulation of Stomatal Responses to Pathogen and Drought Stress by the F-Box Protein AtSKIP5.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70074
Ting Zhang, Kang Wang, Xinyuan Li, Cheng Zhang, Kui Wang, Huajian Zhang
{"title":"Regulation of Stomatal Responses to Pathogen and Drought Stress by the F-Box Protein AtSKIP5.","authors":"Ting Zhang, Kang Wang, Xinyuan Li, Cheng Zhang, Kui Wang, Huajian Zhang","doi":"10.1111/mpp.70074","DOIUrl":"10.1111/mpp.70074","url":null,"abstract":"<p><p>E3 ubiquitin ligases are major components of the ubiquitination cascade and contribute to the stomatal responses to pathogen and drought stress in plants. The F-box SKP1-Interacting Partners (AtSKIPs) proteins are members of the SCF E3 ubiquitin ligase complexes; however, whether they have any involvement in stomatal movement remains unclear. Here, based on tissue expression profiling, we found that the AtSKIP5 protein was highly expressed in guard cells. Mutation of AtSKIP5 rendered plants more susceptible to Pseudomonas syringae pv. tomato (Pst) DC3000 and resulted in a significant impairment in stomatal closure after flg22 and Pst DC3000 treatment. Consistently, lines overexpressing AtSKIP5 were more resistant to Pst DC3000 infection and exhibited more rapid stomatal closure than did other lines. However, the AtSKIP5-overexpressing lines and Col-0 line were similarly resistant to Pst<sup>-</sup> (coronatine-deficient mutant) infection and did not exhibit stomatal reopening when exposed to Pst DC3000, a Pst<sup>-</sup> strain, or a Pst<sup>-</sup> strain accompanied by coronatine (COR) treatment. These results suggest that AtSKIP5-mediated resistance to Pst DC3000 is by controlling stomatal immunity via positive regulation of flg22-triggered stomatal closure and suppression of COR-mediated stomatal reopening. Furthermore, apoplastic immunity was compromised in the skip5 mutants, as evidenced by lower MAPK phosphorylation levels, less reactive oxygen species (ROS) production, and callose deposition induced by flg22, shifting the response in the pathogenic direction. In addition, the skip5 mutants evidenced an impairment in stomatal closure induced by abscisic acid (ABA), and a lower survival rate and greater water loss under drought stress, suggesting that AtSKIP5 serves as a positive regulator of drought tolerance via ABA-induced stomatal closure. Our results provide new insights into the importance of the stomatal responses to pathogen and drought stresses that are modulated by AtSKIP5 in Arabidopsis.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70074"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11906370/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
It's Complicated: Why Are There So Few Commercially Successful Crop Varieties Engineered for Disease Resistance?
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70077
Peter Balint-Kurti, Qingli Liu
{"title":"It's Complicated: Why Are There So Few Commercially Successful Crop Varieties Engineered for Disease Resistance?","authors":"Peter Balint-Kurti, Qingli Liu","doi":"10.1111/mpp.70077","DOIUrl":"10.1111/mpp.70077","url":null,"abstract":"<p><p>It is more than 40 years since the era of transgenic plants began and more than 30 years after the cloning of the first plant disease resistance genes. Despite extensive progress in our mechanistic understanding and despite considerable sustained efforts in the commercial, nonprofit, academic and governmental sectors, the prospect of commercially viable plant varieties carrying disease resistance traits endowed by biotechnological approaches remains elusive. The cost of complying with the regulations governing the release of transgenic plants is often cited as the main reason for this lack of success. While this is undeniably a substantial hurdle, other transgenic traits have been successfully commercialised. We argue that a significant portion of the challenges of producing crop varieties engineered for disease resistance is intrinsic to the trait itself. In this review, we briefly discuss the main approaches used to engineer plant disease resistance. We further discuss possible reasons why they have not been successful in a commercial context and, finally, we try to derive some lessons to apply to future efforts.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70077"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11922809/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Crosstalk Between Ethylene and JA/ABA/Sugar Signalling in Plants Under Physiological and Stress Conditions.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70048
Yi-Bo Wang, Ya-Li Zou, Yu-Ting Wei, Lai-Sheng Meng
{"title":"Crosstalk Between Ethylene and JA/ABA/Sugar Signalling in Plants Under Physiological and Stress Conditions.","authors":"Yi-Bo Wang, Ya-Li Zou, Yu-Ting Wei, Lai-Sheng Meng","doi":"10.1111/mpp.70048","DOIUrl":"10.1111/mpp.70048","url":null,"abstract":"<p><p>Growth, development and defence responses of plants are governed through signalling networks that connect inputs from nutrient status, hormone cues and environmental signals. Plant hormones as endogenous signals are essential for modulating plant defence responses and developmental processes. Ethylene (ET), a gaseous hormone, is widely established as a regulator of these processes. Over the last two decades, substantial research reports have revealed the interaction between ET and other endogenous cues, including abscisic acid (ABA), sugars and jasmonates (JAs). However, these reports showed numerous conflicting or contrasting conclusions. For example, some reports revealed that ET and ABA/sugar/JA signalling synergistically regulate plant growth, development and defence responses, whereas other reports demonstrated that these cues antagonistically modulate these processes. This suggests that the crosstalk between ET and JA/ABA/sugar signalling is very complex, that is, these hormones can function either antagonistically or coordinately, dependent on the given biological process (e.g., under physiological or stress conditions). Further analysis found that whether synergistic or antagonistic actions exist between ET and JA/ABA/sugar signalling is determined by the induction/inhibition of their respective master transcription factors in these pathways. We here summarise the most recent advances and outstanding questions and/or challenges in the area of crosstalk between ET and ABA/sugar/JA signalling under physiological or stress conditions.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70048"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11890979/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
FaNDUFB9 Attenuates Strawberry Mottle Virus Infection by Inhibiting the Activity of the Viral Gene Silencing Suppressor, Pro2Glu.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70061
Tengfei Xu, Binhui Zhan, Zhixiang Zhang, Lingjiao Fan, Dehang Gao, Zhenfei Dong, Shifang Li, Hongqing Wang
{"title":"FaNDUFB9 Attenuates Strawberry Mottle Virus Infection by Inhibiting the Activity of the Viral Gene Silencing Suppressor, Pro2Glu.","authors":"Tengfei Xu, Binhui Zhan, Zhixiang Zhang, Lingjiao Fan, Dehang Gao, Zhenfei Dong, Shifang Li, Hongqing Wang","doi":"10.1111/mpp.70061","DOIUrl":"10.1111/mpp.70061","url":null,"abstract":"<p><p>Strawberry mottle virus (SMoV) significantly compromises strawberry fruit quality and yield. The Pro2Glu protein of SMoV, an RNA silencing suppressor, is pivotal for viral infection; however, its interactions with host factors remain underexplored. This study identifies a critical interaction between SMoV Pro2Glu and strawberry NADH dehydrogenase (ubiquinone) 1 β subcomplex subunit 9 (FaNDUFB9). Using yeast two-hybrid assays and in vivo protein interaction analyses, we confirm that amino acid residues 31-45 of FaNDUFB9 are essential for binding Pro2Glu. Sequence analysis places FaNDUFB9 within the Complex1_LYR_superfamily, and subcellular localisation reveals its presence in both the mitochondria and nucleus. Silencing of NbNDUFB9 in Nicotiana benthamiana elevated Pro2Glu expression, whereas co-expression of FaNDUFB9 with Pro2Glu suppressed Pro2Glu levels and weakened its silencing activity. Furthermore, overexpression of FaNDUFB9 in transgenic N. benthamiana reduced transient SMoV RNA expression. These findings suggest that FaNDUFB9 inhibits expression of Pro2Glu, affecting its silencing activity, and thereby potentially further influencing viral infection.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70061"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11890975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143586347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Genomic Surveillance and Molecular Evolution of Fungicide Resistance in European Populations of Wheat Powdery Mildew.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70071
Nikolaos Minadakis, Jigisha Jigisha, Luca Cornetti, Lukas Kunz, Marion C Müller, Stefano F F Torriani, Fabrizio Menardo
{"title":"Genomic Surveillance and Molecular Evolution of Fungicide Resistance in European Populations of Wheat Powdery Mildew.","authors":"Nikolaos Minadakis, Jigisha Jigisha, Luca Cornetti, Lukas Kunz, Marion C Müller, Stefano F F Torriani, Fabrizio Menardo","doi":"10.1111/mpp.70071","DOIUrl":"10.1111/mpp.70071","url":null,"abstract":"<p><p>Fungicides are used in agriculture to manage fungal infections and maintain crop yield and quality. In Europe, their application on cereals increased drastically starting from the mid 1970s, contributing to a significant improvement in yields. However, extensive usage has led to the rapid evolution of resistant pathogen populations within just a few years of fungicide deployment. Here we focus on wheat powdery mildew, a disease caused by the ascomycete fungus Blumeria graminis forma specialis tritici (Bgt). Previous research on Bgt documented the emergence of resistance to different fungicides and identified various resistance mechanisms. Yet, the frequency, distribution and evolutionary dynamics of fungicide resistance in Bgt populations remain largely unexplored. In this study, we leveraged extensive sampling and whole-genome sequencing of Bgt populations in Europe and the Mediterranean to investigate the population genetics and molecular epidemiology of fungicide resistance towards five major fungicide classes. We analysed gene sequences and copy number variation of eight known fungicide target genes in 415 Bgt isolates sampled between 1980 and 2023. We observed that mutations conferring resistance to various fungicides increased in frequency over time and had distinct geographic distributions, probably due to diverse deployment of fungicides across different regions. For demethylation inhibitor fungicides, we identified multiple independent events of resistance emergence with distinct mutational profiles, and we tracked their rapid spread in the last decades. Overall, we revealed the evolutionary and epidemiological dynamics of fungicide resistance mutations in European Bgt populations. These results underscore the potential of genomic surveillance and population genetics to enhance our understanding of fungicide resistance.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70071"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11922816/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Potato Type I Protease Inhibitor Mediates Host Defence Against Potato Virus X Infection by Interacting With a Viral RNA Silencing Suppressor. 马铃薯 I 型蛋白酶抑制剂通过与病毒 RNA 沉默抑制因子相互作用,介导宿主防御马铃薯病毒 X 感染。
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70073
Minjie Shen, Yonghao Wang, Yi Chen, Jiejun Peng, Guanwei Wu, Shaofei Rao, Jian Wu, Hongying Zheng, Jianping Chen, Fei Yan, Yuwen Lu, Gentu Wu
{"title":"Potato Type I Protease Inhibitor Mediates Host Defence Against Potato Virus X Infection by Interacting With a Viral RNA Silencing Suppressor.","authors":"Minjie Shen, Yonghao Wang, Yi Chen, Jiejun Peng, Guanwei Wu, Shaofei Rao, Jian Wu, Hongying Zheng, Jianping Chen, Fei Yan, Yuwen Lu, Gentu Wu","doi":"10.1111/mpp.70073","DOIUrl":"10.1111/mpp.70073","url":null,"abstract":"<p><p>Counteracting plant RNA silencing ensures successful viral infection. The P25 protein encoded by potato virus X (PVX) is a multifunctional protein that acts as a viral RNA silencing suppressor (VSR). In this study, we screened out a potato type I protease inhibitor (PI) in Nicotiana benthamiana (NbPI) that interacts with P25. Silencing of NbPI by tobacco rattle virus (TRV)-mediated virus-induced gene silencing (VIGS) promoted the infection of PVX. Overexpression of NbPI in transgenic plants conferred resistance to PVX infection. Moreover, transient expression of NbPI impaired the VSR activity and cell-to-cell movement complementation ability of P25. Further experiments showed that P25 protein degradation was through the combination of autophagy and the ubiquitin-26S proteasome system (UPS), leading to impairment of P25. Taken together, we have identified NbPI as a new host factor that compromises PVX infection by targeting and degrading the VSR P25.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70073"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11906362/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143625316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
PthXo2B Orthologue Tal7 of Xanthomonas oryzae pv. oryzae Strain IX-221 Acts as a Major Virulence Factor in Indica Rice Without Activating a Clade III SWEET Gene. 黄单胞菌(Xanthomonas oryzae pv. oryzae)菌株 IX-221 的 PthXo2B 直向同源物 Tal7 是籼稻的主要毒性因子,但不激活支系 III SWEET 基因。
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70067
Prashant Mishra, S Shakespear, Sara C D Carpenter, S Hamsa, S Vigi, K N Anith, Prasanta K Dash, Adam J Bogdanove, Rhitu Rai
{"title":"PthXo2B Orthologue Tal7 of Xanthomonas oryzae pv. oryzae Strain IX-221 Acts as a Major Virulence Factor in Indica Rice Without Activating a Clade III SWEET Gene.","authors":"Prashant Mishra, S Shakespear, Sara C D Carpenter, S Hamsa, S Vigi, K N Anith, Prasanta K Dash, Adam J Bogdanove, Rhitu Rai","doi":"10.1111/mpp.70067","DOIUrl":"10.1111/mpp.70067","url":null,"abstract":"<p><p>In rice bacterial blight, Xanthomonas oryzae pv. oryzae deploys transcription activator-like effectors (TALEs) that upregulate host susceptibility genes. Thirty-four amino acid repeats in TALEs each specify a base in the DNA target, via a repeat-variable diresidue (RVD; positions 12 and 13). Some aberrant-length repeats can disengage to accommodate single base deletions. Clade III SWEET genes SWEET11, -13 and -14 are major susceptibility targets of different TALEs. xa13 is a SWEET11 allele lacking the TALE binding site and thus confers resistance to some strains. It has been deployed widely in India. We report that an xa13-breaking Indian isolate, IX-221, harbours one SWEET14- and two SWEET13-activating TALEs, with one or two disengageable repeats. One, Tal7, orthologous to PthXo2B of Philippines strain PXO61 but with minor, non-RVD sequence differences, like PthXo2B upregulates SWEET13 in a japonica variety and no clade III SWEET in an indica, yet unlike PthXo2B renders both varieties susceptible. A designer TALE with distinct, minor differences also failed to render the indica susceptible. The results suggest that Tal7 activates an alternative susceptibility gene and that non-RVD polymorphism can affect TALE targeting. Moreover, IX-221 provides evidence that the deployment of xa13 in India resulted in strains super-equipped with TALEs that break it.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70067"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11868982/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143523806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
gma-miR828a Negatively Regulates Resistance to Tea Leaf Spot Caused by Lasiodiplodia theobromae Through Targeting the CsMYB28-CsRPP13 Module.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-03-01 DOI: 10.1111/mpp.70069
Yuxuan Wen, Tianxinyi Pan, Yuancan Shi, Jinhui Xu, Delu Wang, Jing-Jiang Zhou, Baoan Song, Zhuo Chen
{"title":"gma-miR828a Negatively Regulates Resistance to Tea Leaf Spot Caused by Lasiodiplodia theobromae Through Targeting the CsMYB28-CsRPP13 Module.","authors":"Yuxuan Wen, Tianxinyi Pan, Yuancan Shi, Jinhui Xu, Delu Wang, Jing-Jiang Zhou, Baoan Song, Zhuo Chen","doi":"10.1111/mpp.70069","DOIUrl":"10.1111/mpp.70069","url":null,"abstract":"<p><p>Leaf spot caused by the fungus Lasiodiplodia theobromae severely affects the quality and production of tea (Camellia sinensis) in plantations across southwestern China. Currently, no effective control measures are available, and the damage to tea leaves is also exacerbated by a lack of understanding regarding the epidemiology of the disease. Previous studies have suggested that gma-miR828a is differentially expressed during L. theobromae infection and may target and cleave the mRNA of CsMYB28. In this study, we characterised CsMYB28 as encoding a transcription factor (TF) that localises to the nucleus, cell membrane, and cytoplasm. This gene was found to be differentially and spatiotemporally expressed in leaf tissues following L. theobromae infection of leaves of the tea plant. Altered CsMYB28 expression, achieved by transient overexpression or stable genetic transformation of Nicotiana benthamiana, or transient silencing using antisense oligonucleotides (AsODN) in the tea plant, indicated that CsMYB28 contributes to resistance against L. theobromae. Using DNA affinity purification sequencing, yeast one-hybrid, and dual-luciferase assays, we also identified that CsMYB28 bound to the AATTAATT motif of CsRPP13, thereby activating the expression of CsRPP13. Additionally, degradome sequencing, β-glucuronidase (GUS) assays, and RNA ligase-mediated rapid amplification of cDNA ends revealed that miR828a cleaved CsMYB28 mRNA, negatively regulating its expression. The results from transient overexpression and stable transformation studies, combined with AsODN-mediated silencing in the tea plant, suggested that miR828a plays a negative regulatory role in modulating the response of the tea plant to L. theobromae infection. This study demonstrates that the miR828a-CsMYB28-CsRPP13 mediates the response of the tea plant to L. theobromae infection.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 3","pages":"e70069"},"PeriodicalIF":4.8,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11876294/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143542565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Novel Regulators and Their Epistatic Networks in Arabidopsis' Defence Responses to Alternaria alternata Infection.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-02-01 DOI: 10.1111/mpp.70058
Qi Zeng, Xifan Liu, Xuemei Yan, Jiahao Zhang, Chao Li, Chengtai Yan, Yanfeng Zhang, Daniel Kliebenstein, Baohua Li
{"title":"Novel Regulators and Their Epistatic Networks in Arabidopsis' Defence Responses to Alternaria alternata Infection.","authors":"Qi Zeng, Xifan Liu, Xuemei Yan, Jiahao Zhang, Chao Li, Chengtai Yan, Yanfeng Zhang, Daniel Kliebenstein, Baohua Li","doi":"10.1111/mpp.70058","DOIUrl":"10.1111/mpp.70058","url":null,"abstract":"<p><p>Necrotrophic pathogens cause serious threats to agricultural crops, and understanding the resistance genes and their genetic networks is key to breeding new plant cultivars with better resistance traits. Although Alternaria alternata causes black spot in important leafy brassica vegetables, and leads to significant loss of yield and food quality, little is known about plant-A. alternata interactions. In this study, we used a unique and large collection of single, double and triple mutant lines of defence metabolite regulators in Arabidopsis to explore how these transcription factors and their epistatic networks may influence A. alternata infections. This identified nine novel regulators and 20 pairs of epistatic interactions that modulate Arabidopsis plants' defence responses to A. alternata infection. We further showed that the glucosinolate 4-methoxy-indol-3-ylmethyl is the only glucosinolate consistently responsive to A. alternata infection in Col-0 ecotype. With the further exploration of the regulators and the genetic networks on modulating the accumulation of glucosinolates under A. alternata infection, an inverted triangle regulatory model was proposed for Arabidopsis plants' defence responses at a metabolic level and a phenotypic level.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 2","pages":"e70058"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11788323/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143080509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reprogrammed Plant Metabolism During Viral Infections: Mechanisms, Pathways and Implications.
IF 4.8 1区 农林科学
Molecular plant pathology Pub Date : 2025-02-01 DOI: 10.1111/mpp.70066
Tong Jiang, Tianwen Hao, Wenjing Chen, Chengliang Li, Shuqi Pang, Chenglong Fu, Jie Cheng, Chaobo Zhang, Mansour Ghorbanpour, Shuo Miao
{"title":"Reprogrammed Plant Metabolism During Viral Infections: Mechanisms, Pathways and Implications.","authors":"Tong Jiang, Tianwen Hao, Wenjing Chen, Chengliang Li, Shuqi Pang, Chenglong Fu, Jie Cheng, Chaobo Zhang, Mansour Ghorbanpour, Shuo Miao","doi":"10.1111/mpp.70066","DOIUrl":"10.1111/mpp.70066","url":null,"abstract":"<p><p>Plant viruses pose a significant threat to global agriculture, leading to substantial crop losses that jeopardise food security and disrupt ecosystem stability. These viral infections often reprogramme plant metabolism, compromising key pathways critical for growth and defence. For instance, infections by cucumber mosaic virus alter amino acid and secondary metabolite biosynthesis, including flavonoid and phenylpropanoid pathways, thereby weakening plant defences. Similarly, tomato bushy stunt virus disrupts lipid metabolism by altering the synthesis and accumulation of sterols and phospholipids, which are essential for viral replication and compromise membrane integrity. Recent advancements in gene-editing technologies, such as CRISPR/Cas9, and metabolomics offer innovative strategies to mitigate these impacts. Precise genetic modifications can restore or optimise disrupted metabolic pathways, enhancing crop resilience to viral infections. Metabolomics further aids in identifying metabolic biomarkers linked to viral resistance, guiding breeding programmes aimed at developing virus-resistant plants. By reducing the susceptibility of crops to viral infections, these approaches hold significant potential to reduce dependence on chemical pesticides, increase crop yields and promote sustainable agricultural practices. Future research should focus on expanding our understanding of virus-host interactions at the molecular level while exploring the long-term ecological impacts of viral infections. Interdisciplinary approaches integrating multi-omics technologies and sustainable management strategies will be critical in addressing the challenges posed by plant viruses and ensuring global agricultural stability.</p>","PeriodicalId":18763,"journal":{"name":"Molecular plant pathology","volume":"26 2","pages":"e70066"},"PeriodicalIF":4.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11839395/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143458666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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