CORRECTION: Two Abscisic Acid-Responsive Plastid Lipase Genes Involved in Jasmonic Acid Biosynthesis in Arabidopsis thaliana

Wang, Kun; Guo, Qiang; Froehlich, John E.; Hersh, Hope Lynn; Zienkiewicz, Agnieszka; Howe, Gregg A.; Benning, Christoph

doi:10.1105/tpc.19.00655

Cited by 2 publications

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“…For example, JAM1 regulates both ABA and JA responses in Arabidopsis (Li et al ., ; Nakata et al ., ). ABA could promote the expression of PLIP2 and PLIP3, which might be involved in initiating JA biosynthesis (Wang et al ., ). In this study, we reveal two mechanisms underlying the crosstalk between JA and ABA: JAZ proteins can physically interact with ABI5 and repress its activity; ABA can induce JA biosynthesis to promote the degradation of JAZ proteins.…”

Section: Discussionmentioning

confidence: 97%

JAZ proteins modulate seed germination through interaction with ABI5 in bread wheat and Arabidopsis

et al. 2019

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Summary Appropriate regulation of crop seed germination is of significance for agriculture production. In this study, we show that TaJAZ1, most closely related to Arabidopsis JAZ3, negatively modulates abscisic acid (ABA)‐inhibited seed germination and ABA‐responsive gene expression in bread wheat. Biochemical interaction assays demonstrate that the C‐terminal part containing the Jas domain of TaJAZ1 physically interacts with TaABI5. Similarly, Arabidopsis jasmonate‐ZIM domain (JAZ) proteins also negatively modulate ABA responses. Further we find that a subset of JAZ proteins could interact with ABI5 using the luciferase complementation imaging assays. Choosing JAZ3 as a representative, we demonstrate that JAZ3 interacts with ABI5 in vivo and represses the transcriptional activation activity of ABI5. ABA application could abolish the enrichment of JAZ proteins in the ABA‐responsive gene promoter. Furthermore, we find that ABA application could induce the expression of jasmonate (JA) biosynthetic genes and then increase the JA concentrations partially dependent on the function of ABI5, consequently leading to the degradation of JAZ proteins. This study sheds new light on the crosstalk between JA and ABA in modulating seed germination in bread wheat and Arabidopsis.

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Section: Discussionmentioning

confidence: 97%

JAZ proteins modulate seed germination through interaction with ABI5 in bread wheat and Arabidopsis

et al. 2019

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“…However, S. littoralis infestation does not increase the ABA level in maize shoot (Erb, Flors, et al, 2009), and in rice roots, the biosynthesis of ABA is not induced by belowground D. balteata and L. oryzophilus attack (Lu et al, 2015). Considering the crosstalk between ABA and JA signaling and the role of ABA in drought stress response, it is expected that the ABA pathway is involved in systemic defenses against herbivores (Erb, Flors, et al, 2009; Erb, Köllner, et al, 2011; Wang et al, 2018). A previous study showed that exogenous application of ABA on maize root boosts aboveground defense (Erb, Gordon‐Weeks, et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Belowground and aboveground herbivory differentially affect the transcriptome in roots and shoots of maize

Bustos‐Segura

Degen

et al. 2022

Plant Direct

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Plants recognize and respond to feeding by herbivorous insects by upregulating their local and systemic defenses. While defense induction by aboveground herbivores has been well studied, far less is known about local and systemic defense responses against attacks by belowground herbivores. Here, we investigated and compared the responses of the maize transcriptome to belowground and aboveground mechanical damage and infestation by two well‐adapted herbivores: the soil‐dwelling western corn rootworm Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) and the leaf‐chewing fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae). In responses to both herbivores, maize plants were found to alter local transcription of genes involved in phytohormone signaling, primary and secondary metabolism. Induction by real herbivore damage was considerably stronger and modified the expression of more genes than mechanical damage. Feeding by the corn rootworm had a strong impact on the shoot transcriptome, including the activation of genes involved in defense and development. By contrast, feeding by the fall armyworm induced only few transcriptional changes in the roots. In conclusion, feeding by a leaf chewer and a root feeder differentially affects the local and systemic defense of maize plants. Besides revealing clear differences in how maize plants respond to feeding by these specialized herbivores, this study reveals several novel genes that may play key roles in plant–insect interactions and thus sets the stage for in depth research into the mechanism that can be exploited for improved crop protection. Significance statement Extensive transcriptomic analyses revealed a clear distinction between the gene expression profiles in maize plants upon shoot and root attack, locally as well as distantly from the attacked tissue. This provides detailed insights into the specificity of orchestrated plant defense responses, and the dataset offers a molecular resource for further genetic studies on maize resistance to herbivores and paves the way for novel strategies to enhance maize resistance to pests.

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CORRECTION: Two Abscisic Acid-Responsive Plastid Lipase Genes Involved in Jasmonic Acid Biosynthesis in Arabidopsis thaliana

Cited by 2 publications

References 0 publications

JAZ proteins modulate seed germination through interaction with ABI5 in bread wheat and Arabidopsis

JAZ proteins modulate seed germination through interaction with ABI5 in bread wheat and Arabidopsis

Belowground and aboveground herbivory differentially affect the transcriptome in roots and shoots of maize

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