Phytoparasitic Nematode Control of Plant Hormone Pathways

Gheysen, Godelieve; Mitchum, Melissa G.

doi:10.1104/pp.18.01067

Cited by 113 publications

(117 citation statements)

References 141 publications

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“…TIR, LAX1) ( Fig 7C and 421 S5 Table). It has been recently reported that nematode invasion results in induced auxin 422 biosynthesis and responsive genes while genes encoding for repressors are switched off 423 (Gheysen & Mitchum, 2018). Similar to this scenario, in our dataset, auxin repressors were 424 repressed further highlighting the importance of auxin manipulation in nematode parasitism.…”

Section: Development 368supporting

confidence: 79%

“…Cytokinin and auxin hormones have been implicated in the induction and development of NFS 428 (Gheysen & Mitchum, 2018). In the present study, genes involved in CK signaling pathway 429 were differentially expressed.…”

Section: Gcs 427mentioning

confidence: 53%

“…We also detected three up-406 regulated membrane receptors (which perceive ET) at 3 and/or 7dpi (Fig 7B and S5 Table). Auxin stimulates several changes such as cell wall ingrowths, cell cycle activation and cell 417 expansion occurring in nematode feeding sites (Gheysen & Mitchum, 2018). Here, we found 418 51 auxin signaling genes differentially expressed, including tryptophan aminotransferase-419 related protein 4 (auxin biosynthesis), GH3.3 and SAUR family (auxin-responsive genes), 420 auxin repressors (e.g.…”

Section: Development 368mentioning

confidence: 76%

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Transcriptional profiling of potato (Solanum tuberosum L.) during a compatible interaction with the root-knot nematode, Meloidogyne javanica

Macharia

Bellieny-Rabelo

Moleleki

2019

Preprint

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Transcriptional profiling of potato (Solanum tuberosum L.) during a compatible interaction with the 1 root-knot nematode, Meloidogyne javanica 2 3Running title: "" Response of potato (Solanum tuberosum L.) to root-knot nematode, 4 Meloidogyne javanica 5 6Abstract 14Root-knot nematode (RKN, Meloidogyne javanica) presents a great challenge to Solanaceae 15 crops, including the potato. In this report, we conducted an investigation to understand the 16 transcriptional regulation of molecular responses in potato roots during a compatible 17 interaction following RKN infection. In this study, analysis of gene expression profiles using 18 RNA-seq of Solanum tuberosum cv Mondial with RKN interaction at 0, 3-and 7-days post-19 inoculation (dpi). In total, 4,948 and 4,484 genes were respectively detected as differentially 20 expressed genes (DEGs) at 3 and 7 dpi. Functional annotation revealed that genes associated 21 with metabolic process were enriched at the transcriptional level suggesting they have an 22 important role in RKN disease development. Nematode infection caused down-regulation of 23 282 genes associated with pathogen perception hence interfering with activation plant immune 24 system. Further, late activation of pathogenesis-related genes, down-regulation disease 25 resistance genes and activation of host antioxidant system contributed to a susceptible response. 26 Activation of Jasmonic acid (JA) pathway and protease inhibitors was due to wounding during 27 nematode migration and feeding. Nematode infection suppressed ethylene (ET) and salicylic 28 acid (SA) signalling pathway hindering SA/ET responsive genes involved with defense. 29 Induction of auxin biosynthesis genes, regulation of cytokinin levels and up-regulation of 30 transporter genes facilitated of nematode feeding sites (NFSs) initiation. The regulation of 31 several families of transcription factors (TFs) in the plant, such as WRKY, GRAS, ERF BHLH 32 and MYB, was affected by RKN infection disrupting plant defense signalling pathways. This 33 clearly suggest that TFs played an indispensable role in physiological adaptation for successful 34 RKN disease development. This genome-wide analysis revealed the molecular regulatory 35 networks in potato roots which are successfully manipulated by RKN. Being the first study 36analysing transcriptome profiling of RKN diseased potato, it will provide unparalleled insight 37 into the mechanism underlying disease development. 38Key words: Root-knot nematode, Solanum tuberosum, nematode feeding sites, differentially 39 expressed genes 40Meloidogyne spp are obligate and highly polyphagous pests that form an intricate relationship 46 with their host causing drastic morphological and physiological changes in plant cell 47 643

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Section: Development 368supporting

confidence: 79%

Section: Gcs 427mentioning

confidence: 53%

Section: Development 368mentioning

confidence: 76%

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Transcriptional profiling of potato (Solanum tuberosum L.) during a compatible interaction with the root-knot nematode, Meloidogyne javanica

Macharia

Bellieny-Rabelo

Moleleki

2019

Preprint

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“…Since the root phenotypes of rice d mutants do not seem to be at the basis of their increased M. graminicola resistance, we hypothesized that altered defense hormones might be involved. Plant hormones, especially JA-mediated defense signaling, play an important role in both monocot and dicot plant species to protect against root-knot nematode infections (Cooper et al, 2005;Nahar et al, 2011;Gheysen & Mitchum, 2019). It was shown that the JA-precursor cis-OPDA also acts as a key signaling molecule in the regulation of Arabidopsis defense against the root-knot nematode M. hapla (Gleason et al, 2016).…”

Section: New Phytologistmentioning

confidence: 99%

“…simultaneously influence plant cell differentiation and modulate the defense responses to establish a successful infection via feeding cell formation (Gheysen & Mitchum, 2011;Ji et al, 2013). The plant hormones JA, ethylene, SA, ABA, brassinosteroids (BR), gibberellic acid (GA), and auxin are known to be involved in the interactions between plant and root-knot nematodes (Karczmarek et al, 2004;Nahar et al, 2011Nahar et al, , 2013Kyndt et al, 2017;Yimer et al, 2018;Gheysen & Mitchum, 2019). For instance, the JA-based defense pathway plays a vital role in rice defense against M. graminicola infection, whereas SA is also involved in defense but to a lesser extent than JA (Nahar et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Strigolactones enhance root‐knot nematode (Meloidogyne graminicola) infection in rice by antagonizing the jasmonate pathway

et al. 2019

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Summary Strigolactones (SLs) are carotenoid‐derived plant hormones that also act in the rhizosphere to stimulate germination of root‐parasitic plants and enhance plant symbiosis with beneficial microbes. Here, the role of SLs was investigated in the interaction of rice (Oryza sativa) roots with the root‐knot nematode Meloidogyne graminicola. Genetic approaches and chemical sprays were used to manipulate SL signaling in rice before infection with M. graminicola. Then, nematode performance was evaluated and plant defense hormones were quantified. Meloidogyne graminicola infection induced SL biosynthesis and signaling and suppressed jasmonic acid (JA)‐based defense in rice roots, suggesting a potential role of SLs during nematode infection. Whereas the application of a low dose of the SL analogue GR24 increased nematode infection and decreased jasmonate accumulation, the SL biosynthesis and signaling d mutants were less susceptible to M. graminicola, and constitutively accumulated JA and JA‐isoleucine compared with wild‐type plants. Spraying with 0.1 μM GR24 restored nematode susceptibility in SL‐biosynthesis mutants but not in the signaling mutant. Furthermore, foliar application of the SL biosynthesis inhibitor TIS108 impeded nematode infection and increased jasmonate levels in rice roots. In conclusion, SL signaling in rice suppresses jasmonate accumulation and promotes root‐knot nematode infection.

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Syncytium Induced by Plant-Parasitic Nematodes

Matuszkiewicz,

Sobczak

2023

Results and Problems in Cell Differentiation

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Phytoparasitic Nematode Control of Plant Hormone Pathways

Abstract: G.G. and M.G.M. conceived the structure and the contents of the paper. G.G. wrote the plant hormone part and M.G.M. focused on the effector part. G.G. and M.G.M. commented on and edited the final text. [OPEN] Articles can be viewed without a subscription.

Cited by 113 publications

References 141 publications

Transcriptional profiling of potato (Solanum tuberosum L.) during a compatible interaction with the root-knot nematode, Meloidogyne javanica

Transcriptional profiling of potato (Solanum tuberosum L.) during a compatible interaction with the root-knot nematode, Meloidogyne javanica

Strigolactones enhance root‐knot nematode (Meloidogyne graminicola) infection in rice by antagonizing the jasmonate pathway

Syncytium Induced by Plant-Parasitic Nematodes

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