Molecular Plant-microbe Interactions最新文献

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Regulatory Effects of Diverse DSF Family Quorum-Sensing Signals in Plant-Associated Bacteria. 不同DSF家族群体感应信号在植物相关细菌中的调节作用。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2024-01-01 Epub Date: 2024-01-29 DOI: 10.1094/MPMI-05-23-0074-CR
Kaihuai Li, Chaoyun Ma, Xue Zhou, Chunlan Xiong, Bo Wang, Yong Wang, Fengquan Liu
{"title":"Regulatory Effects of Diverse DSF Family Quorum-Sensing Signals in Plant-Associated Bacteria.","authors":"Kaihuai Li, Chaoyun Ma, Xue Zhou, Chunlan Xiong, Bo Wang, Yong Wang, Fengquan Liu","doi":"10.1094/MPMI-05-23-0074-CR","DOIUrl":"10.1094/MPMI-05-23-0074-CR","url":null,"abstract":"<p><p>Numerous bacterial species employ diffusible signal factor (DSF)-based quorum sensing (QS) as a widely conserved cell-cell signaling communication system to collectively regulate various behaviors crucial for responding to environmental changes. <i>cis</i>-11-Methyl-dodecenoic acid, known as DSF, was first identified as a signaling molecule in <i>Xanthomonas campestris</i> pv. <i>campestris</i>. Subsequently, many structurally related molecules have been identified in different bacterial species. This review aims to provide an overview of current understanding regarding the biosynthesis and regulatory role of DSF signals in both pathogenic bacteria and a biocontrol bacterium. Recent studies have revealed that the DSF-based QS system regulates antimicrobial factor production in a cyclic dimeric GMP-independent manner in the biocontrol bacterium <i>Lysobacter enzymogenes</i>. Additionally, the DSF family signals have been found to be involved in suppressing plant innate immunity. The discovery of these diverse signaling mechanisms holds significant promise for developing novel strategies to combat stubborn plant pathogens. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50162277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of Soybean Events with Enhanced Expression of the Microtubule-Associated Protein 65-1 (MAP65-1). 微管相关蛋白65-1(MAP65-1)表达增强的大豆事件的表征。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2024-01-01 Epub Date: 2024-01-29 DOI: 10.1094/MPMI-09-23-0134-R
Panya Kim, Samira Mahboob, Hanh T Nguyen, Samuel Eastman, Olivia Fiala, Matthew Sousek, Roch E Gaussoin, Jae L Brungardt, Tamra A Jackson-Ziems, Rebecca Roston, James R Alfano, Tom Elmo Clemente, Ming Guo
{"title":"Characterization of Soybean Events with Enhanced Expression of the Microtubule-Associated Protein 65-1 (MAP65-1).","authors":"Panya Kim, Samira Mahboob, Hanh T Nguyen, Samuel Eastman, Olivia Fiala, Matthew Sousek, Roch E Gaussoin, Jae L Brungardt, Tamra A Jackson-Ziems, Rebecca Roston, James R Alfano, Tom Elmo Clemente, Ming Guo","doi":"10.1094/MPMI-09-23-0134-R","DOIUrl":"10.1094/MPMI-09-23-0134-R","url":null,"abstract":"<p><p>Microtubule-associated protein 65-1 (MAP65-1) protein plays an essential role in plant cellular dynamics through impacting stabilization of the cytoskeleton by serving as a crosslinker of microtubules. The role of MAP65-1 in plants has been associated with phenotypic outcomes in response to various environmental stresses. The <i>Arabidopsis</i> MAP65-1 (<i>At</i>MAP65-1) is a known virulence target of plant bacterial pathogens and is thus a component of plant immunity. Soybean events were generated that carry transgenic alleles for both <i>At</i>MAP65-1 and <i>Gm</i>MAP65-1, the soybean <i>At</i>MAP65-1 homolog, under control of cauliflower mosaic virus 35S promoter. Both <i>At</i>MAP65-1 and <i>Gm</i>MAP65-1 transgenic soybeans are more resistant to challenges by the soybean bacterial pathogen <i>Pseudomonas syringae</i> pv. <i>glycinea</i> and the oomycete pathogen <i>Phytophthora sojae</i>, but not the soybean cyst nematode, <i>Heterodera glycines.</i> Soybean plants expressing <i>At</i>MAP65-1 and <i>Gm</i>MAP65-1 also display a tolerance to the herbicide oryzalin, which has a mode of action to destabilize microtubules. In addition, <i>Gm</i>MAP65-1-expressing soybean plants show reduced cytosol ion leakage under freezing conditions, hinting that ectopic expression of <i>Gm</i>MAP65-1 may enhance cold tolerance in soybean. Taken together, overexpression of <i>At</i>MAP65-1 and <i>Gm</i>MAP65-1 confers tolerance of soybean plants to various biotic and abiotic stresses. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54230203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Globodera rostochiensis Gr29D09 Effector with a Role in Defense Suppression Targets the Potato Hexokinase 1 Protein. 在防御抑制中发挥作用的 Globodera rostochiensis Gr29D09 致效因子以马铃薯 Hexokinase 1 蛋白为靶标。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2024-01-01 Epub Date: 2024-01-29 DOI: 10.1094/MPMI-07-23-0095-R
Shiyan Chen, Tien Thi Thuy Tran, Athena Yi-Chun Yeh, Huijun Yang, Jiansong Chen, Yong Yang, Xiaohong Wang
{"title":"The <i>Globodera rostochiensis</i> Gr29D09 Effector with a Role in Defense Suppression Targets the Potato Hexokinase 1 Protein.","authors":"Shiyan Chen, Tien Thi Thuy Tran, Athena Yi-Chun Yeh, Huijun Yang, Jiansong Chen, Yong Yang, Xiaohong Wang","doi":"10.1094/MPMI-07-23-0095-R","DOIUrl":"10.1094/MPMI-07-23-0095-R","url":null,"abstract":"<p><p>The potato cyst nematode (<i>Globodera rostochiensis</i>) is an obligate root pathogen of potatoes. <i>G. rostochiensis</i> encodes several highly expanded effector gene families, including the <i>Gr4D06</i> family; however, little is known about the function of this effector family. We cloned four <i>29D09</i> genes from <i>G. rostochiensis</i> (named <i>Gr29D09v1/v2/v3/v4</i>) that share high sequence similarity and are homologous to the <i>Hg29D09</i> and <i>Hg4D06</i> effector genes from the soybean cyst nematode (<i>Heterodera glycines</i>). Phylogenetic analysis revealed that <i>Gr29D09</i> genes belong to a subgroup of the <i>Gr4D06</i> family. We showed that <i>Gr29D09</i> genes are expressed exclusively within the nematode's dorsal gland cell and are dramatically upregulated in parasitic stages, indicating involvement of Gr29D09 effectors in nematode parasitism. Transgenic potato lines overexpressing <i>Gr29D09</i> variants showed increased susceptibility to <i>G. rostochiensis</i>. Transient expression assays in <i>Nicotiana benthamiana</i> demonstrated that Gr29D09v3 could suppress reactive oxygen species (ROS) production and defense gene expression induced by flg22 and cell death mediated by immune receptors. These results suggest a critical role of Gr29D09 effectors in defense suppression. The use of affinity purification coupled with nanoliquid chromatography-tandem mass spectrometry identified potato hexokinase 1 (StHXK1) as a candidate target of Gr29D09. The Gr29D09-StHXK1 interaction was further confirmed using in planta protein-protein interaction assays. Plant HXKs have been implicated in defense regulation against pathogen infection. Interestingly, we found that StHXK1 could enhance flg22-induced ROS production, consistent with a positive role of plant HXKs in defense. Altogether, our results suggest that targeting StHXK1 by Gr29D09 effectors may impair the positive function of StHXK1 in plant immunity, thereby aiding nematode parasitism. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10278375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phytophthora sojae Effector PsCRN108 Targets CAMTA2 to Suppress HSP40 Expression and ROS Burst. 疫霉菌效应子PsCRN108靶向CAMTA2以抑制HSP40的表达和ROS的爆发。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2024-01-01 Epub Date: 2024-01-29 DOI: 10.1094/MPMI-05-23-0058-R
Zitong Yang, Gan Ai, Xinyu Lu, Yuke Li, Jinlu Miao, Wen Song, Heng Xu, Jinding Liu, Danyu Shen, Daolong Dou
{"title":"<i>Phytophthora sojae</i> Effector PsCRN108 Targets CAMTA2 to Suppress <i>HSP40</i> Expression and ROS Burst.","authors":"Zitong Yang, Gan Ai, Xinyu Lu, Yuke Li, Jinlu Miao, Wen Song, Heng Xu, Jinding Liu, Danyu Shen, Daolong Dou","doi":"10.1094/MPMI-05-23-0058-R","DOIUrl":"10.1094/MPMI-05-23-0058-R","url":null,"abstract":"<p><p>Oomycete pathogens secrete numerous crinkling and necrosis proteins (CRNs) to manipulate plant immunity and promote infection. However, the functional mechanism of CRN effectors is still poorly understood. Previous research has shown that the <i>Phytophthora sojae</i> effector PsCRN108 binds to the promoter of <i>HSP90</i>s and inhibits their expression, resulting in impaired plant immunity. In this study, we found that in addition to <i>HSP90</i>, PsCRN108 also suppressed other <i>Heat Shock Protein</i> (<i>HSP</i>) family genes, including <i>HSP40</i>. Interestingly, PsCRN108 inhibited the expression of <i>NbHSP40</i> through its promoter, but did not directly bind to its promoter. Instead, PsCRN108 interacted with NbCAMTA2, a negative regulator of plant immunity. NbCAMTA2 was a negative regulator of <i>NbHSP40</i> expression, and PsCRN108 could promote such inhibition activity of NbCAMTA2. Our results elucidated the multiple roles of PsCRN108 in the suppression of plant immunity and revealed a new mechanism by which the CRN effector hijacked transcription factors to affect immunity. [Formula: see text] Copyright © 2024 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49679947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Shoot Maturation Strengthens FLS2-Mediated Resistance to Pseudomonas syringae. 嫩枝成熟增强了 FLS2 介导的对丁香假单胞菌的抗性
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 Epub Date: 2023-12-22 DOI: 10.1094/MPMI-02-23-0018-R
Lanxi Hu, Brian Kvitko, Paul M Severns, Li Yang
{"title":"Shoot Maturation Strengthens FLS2-Mediated Resistance to <i>Pseudomonas syringae</i>.","authors":"Lanxi Hu, Brian Kvitko, Paul M Severns, Li Yang","doi":"10.1094/MPMI-02-23-0018-R","DOIUrl":"10.1094/MPMI-02-23-0018-R","url":null,"abstract":"<p><p>Temporospatial regulation of immunity components is essential for properly activating plant defense response. Flagellin-sensing 2 (FLS2) is a surface-localized receptor that recognizes bacterial flagellin. The immune function of FLS2 is compromised in early stages of shoot development. However, the underlying mechanism for the age-dependent FLS2 signaling is not clear. Here, we show that the reduced basal immunity of juvenile leaves against <i>Pseudomonas syringae</i> pv. <i>tomato</i> DC3000 is independent of FLS2. The flg22-induced marker gene expression and reactive oxygen species activation were comparable in juvenile and adult stages, but callose deposition was more evident in the adult stage than the juvenile stage. We further demonstrated that microRNA156, a master regulator of plant aging, does not influence the expression of <i>FLS2</i> and <i>FRK1</i> (<i>Flg22-induced receptor-like kinase 1</i>) but mildly suppresses callose deposition in juvenile leaves. Our experiments revealed an intrinsic mechanism that regulates the amplitude of FLS2-mediated resistance during aging. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10989731/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10200514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Laser Capture Microdissection Transcriptome Reveals Spatiotemporal Tissue Gene Expression Patterns of Medicago truncatula Roots Responding to Rhizobia. 激光捕获显微切割转录组揭示了麦迪奇根对根瘤菌反应的时空组织基因表达模式。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 Epub Date: 2023-12-23 DOI: 10.1094/MPMI-03-23-0029-R
Elise Schnabel, Jacklyn Thomas, Rabia El-Hawaz, Yueyao Gao, William L Poehlman, Suchitra Chavan, Asher Pasha, Eddi Esteban, Nicholas Provart, F Alex Feltus, Julia Frugoli
{"title":"Laser Capture Microdissection Transcriptome Reveals Spatiotemporal Tissue Gene Expression Patterns of <i>Medicago truncatula</i> Roots Responding to Rhizobia.","authors":"Elise Schnabel, Jacklyn Thomas, Rabia El-Hawaz, Yueyao Gao, William L Poehlman, Suchitra Chavan, Asher Pasha, Eddi Esteban, Nicholas Provart, F Alex Feltus, Julia Frugoli","doi":"10.1094/MPMI-03-23-0029-R","DOIUrl":"10.1094/MPMI-03-23-0029-R","url":null,"abstract":"<p><p>We report a public resource for examining the spatiotemporal RNA expression of 54,893 <i>Medicago truncatula</i> genes during the first 72 h of response to rhizobial inoculation. Using a methodology that allows synchronous inoculation and growth of more than 100 plants in a single media container, we harvested the same segment of each root responding to rhizobia in the initial inoculation over a time course, collected individual tissues from these segments with laser capture microdissection, and created and sequenced RNA libraries generated from these tissues. We demonstrate the utility of the resource by examining the expression patterns of a set of genes induced very early in nodule signaling, as well as two gene families (CLE peptides and nodule specific PLAT-domain proteins) and show that despite similar whole-root expression patterns, there are tissue differences in expression between the genes. Using a rhizobial response dataset generated from transcriptomics on intact root segments, we also examined differential temporal expression patterns and determined that, after nodule tissue, the epidermis and cortical cells contained the most temporally patterned genes. We circumscribed gene lists for each time and tissue examined and developed an expression pattern visualization tool. Finally, we explored transcriptomic differences between the inner cortical cells that become nodules and those that do not, confirming that the expression of 1-aminocyclopropane-1-carboxylate synthases distinguishes inner cortical cells that become nodules and provide and describe potential downstream genes involved in early nodule cell division. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10650948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Necrotrophic Pathogen Parastagonospora nodorum Is a Master Manipulator of Wheat Defense. 坏死性病原体Parastagonospora nodorum是小麦防御的主要操纵者。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 Epub Date: 2023-12-22 DOI: 10.1094/MPMI-05-23-0067-IRW
Gayan K Kariyawasam, Ashley C Nelson, Simon J Williams, Peter S Solomon, Justin D Faris, Timothy L Friesen
{"title":"The Necrotrophic Pathogen <i>Parastagonospora nodorum</i> Is a Master Manipulator of Wheat Defense.","authors":"Gayan K Kariyawasam, Ashley C Nelson, Simon J Williams, Peter S Solomon, Justin D Faris, Timothy L Friesen","doi":"10.1094/MPMI-05-23-0067-IRW","DOIUrl":"10.1094/MPMI-05-23-0067-IRW","url":null,"abstract":"<p><p><i>Parastagonospora nodorum</i> is a necrotrophic pathogen of wheat that is particularly destructive in major wheat-growing regions of the United States, northern Europe, Australia, and South America. <i>P. nodorum</i> secretes necrotrophic effectors that target wheat susceptibility genes to induce programmed cell death (PCD), resulting in increased colonization of host tissue and, ultimately, sporulation to complete its pathogenic life cycle. Intensive research over the last two decades has led to the functional characterization of five proteinaceous necrotrophic effectors, <i>SnTox1</i>, <i>SnToxA</i>, <i>SnTox267</i>, <i>SnTox3</i>, and <i>SnTox5</i>, and three wheat susceptibility genes, <i>Tsn1</i>, <i>Snn1</i>, and <i>Snn3D-1.</i> Functional characterization has revealed that these effectors, in addition to inducing PCD, have additional roles in pathogenesis, including chitin binding that results in protection from wheat chitinases, blocking defense response signaling, and facilitating plant colonization. There are still large gaps in our understanding of how this necrotrophic pathogen is successfully manipulating wheat defense to complete its life cycle. This review summarizes our current knowledge, identifies knowledge gaps, and provides a summary of well-developed tools and resources currently available to study the <i>P. nodorum</i>-wheat interaction, which has become a model for necrotrophic specialist interactions. Further functional characterization of the effectors involved in this interaction and work toward a complete understanding of how <i>P. nodorum</i> manipulates wheat defense will provide fundamental knowledge about this and other necrotrophic interactions. Additionally, a broader understanding of this interaction will contribute to the successful management of Septoria nodorum blotch disease on wheat. [Formula: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10353689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secreted Effector Proteins of Poplar Leaf Spot and Stem Canker Pathogen Sphaerulina musiva Manipulate Plant Immunity and Contribute to Virulence in Diverse Ways. 杨树叶斑病和茎腐病病原体 Sphaerulina musiva 的分泌效应蛋白以多种方式操纵植物免疫力并增强其毒性。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 Epub Date: 2023-12-23 DOI: 10.1094/MPMI-07-23-0091-R
Yao Zhao, Xinyue Zheng, Javier F Tabima, Sheng Zhu, Kelsey L Søndreli, Hope Hundley, Diane Bauer, Kerrie Barry, Yaxin Zhang, Jeremy Schmutz, Yuanchao Wang, Jared M LeBoldus, Qin Xiong
{"title":"Secreted Effector Proteins of Poplar Leaf Spot and Stem Canker Pathogen <i>Sphaerulina musiva</i> Manipulate Plant Immunity and Contribute to Virulence in Diverse Ways.","authors":"Yao Zhao, Xinyue Zheng, Javier F Tabima, Sheng Zhu, Kelsey L Søndreli, Hope Hundley, Diane Bauer, Kerrie Barry, Yaxin Zhang, Jeremy Schmutz, Yuanchao Wang, Jared M LeBoldus, Qin Xiong","doi":"10.1094/MPMI-07-23-0091-R","DOIUrl":"10.1094/MPMI-07-23-0091-R","url":null,"abstract":"<p><p>Fungal effectors play critical roles in manipulating plant immune responses and promoting colonization. <i>Sphaerulina musiva</i> is a heterothallic ascomycete fungus that causes Septoria leaf spot and stem canker disease in poplar (<i>Populus</i> spp.) plantations. This disease can result in premature defoliation, branch and stem breakage, increased mortality, and plantation failure. However, little is known about the interaction between <i>S. musiva</i> and poplar. Previous work predicted 142 candidate secreted effector proteins in <i>S. musiva</i> (SmCSEPs), 19 of which were selected for further functional characterization in this study. SmCSEP3 induced plant cell death in <i>Nicotiana benthamiana</i>, while 8 out of 19 tested SmCSEPs suppressed cell death. The signal peptides of these eight SmCSEPs exhibited secretory activity in a yeast signal sequence trap assay. Confocal microscopy revealed that four of these eight SmCSEPs target both the cytoplasm and the nucleus, whereas four predominantly localize to discrete punctate structures. Pathogen challenge assays in <i>N. benthamiana</i> demonstrated that the transient expression of six SmCSEPs promoted <i>Fusarium proliferatum</i> infection. The expression of these six <i>SmCSEP</i> genes were induced during infection. SmCSEP2, SmCSEP13, and SmCSEP25 suppressed chitin-triggered reactive oxygen species burst and callose deposition in <i>N. benthamiana</i>. The candidate secreted effector proteins of <i>S. musiva</i> target multiple compartments in the plant cell and modulate different pattern-triggered immunity pathways. [Formula: see text] The author(s) have dedicated the work to the public domain under the Creative Commons CC0 \"No Rights Reserved\" license by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law, 2023.</p>","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10310727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
RxLR Effectors: Master Modulators, Modifiers and Manipulators. RXLR效应器:主调制器、修改器和操纵器。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 Epub Date: 2023-12-22 DOI: 10.1094/MPMI-05-23-0054-CR
Shumei Wang, Hazel McLellan, Petra C Boevink, Paul R J Birch
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引用次数: 0
Unveiling the Molecular Arsenal: Identification and Characterization of Sphaerulina musiva Effectors Targeting Populus Genotypes. 揭开分子武器库的神秘面纱:针对杨树基因型的 Sphaerulina musiva 效应因子的鉴定和特征描述。
IF 3.5 3区 生物学
Molecular Plant-microbe Interactions Pub Date : 2023-12-01 DOI: 10.1094/MPMI-11-23-0186-CM
Siva Sankari, Amelia Helen Lovelace
{"title":"Unveiling the Molecular Arsenal: Identification and Characterization of <i>Sphaerulina musiva</i> Effectors Targeting <i>Populus</i> Genotypes.","authors":"Siva Sankari, Amelia Helen Lovelace","doi":"10.1094/MPMI-11-23-0186-CM","DOIUrl":"10.1094/MPMI-11-23-0186-CM","url":null,"abstract":"","PeriodicalId":19009,"journal":{"name":"Molecular Plant-microbe Interactions","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139058535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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