Two interacting ethylene response factors negatively regulate peach resistance to <i>Lasiodiplodia theobromae</i>

Zhang, Dongmei; Zhu, Kaijie; Shen, Xingyi; Meng, Jian; Xue, Hong; Yu-qi, Tan; Cardinale, Francesca; Liu, Jihong; Li, Guohuai; Liu, Jun-Wei

doi:10.1093/plphys/kiad279

Cited by 12 publications

(3 citation statements)

References 51 publications

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“…Both PpERF98 and PpERF1 act as negative regulators in the peach response to L. theobromae infection. 67 In summary, these findings collectively affirm the detrimental role of ET signaling in host−pathogen resistance.…”

Section: Susceptibe Hemibiotrophic and Necrotrophic Pathogensmentioning

confidence: 55%

“…PpERF98-1 and 2 have been shown to directly interact with the promoters of two paralogous PpERF1 genes, thereby activating the JA/ET signaling branch and attenuating SA-mediated defenses. Both PpERF98 and PpERF1 act as negative regulators in the peach response to L. theobromae infection . In summary, these findings collectively affirm the detrimental role of ET signaling in host–pathogen resistance.…”

Section: Et Signaling and Promotion Of Plant Susceptibe Hemibiotrophi...mentioning

confidence: 99%

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Recent Advances in Dissecting the Function of Ethylene in Interaction between Host and Pathogen

Shu,

Li,

Sheng

et al. 2024

J. Agric. Food Chem.

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Pathogens influence the growth and development of plants, resulting in detrimental damage to their yields and quality. Ethylene, a gaseous phytohormone, serves a pivotal function in modulating diverse physiological processes in plants, including defense mechanisms against pathogen invasion. Ethylene biosynthesis is involved in both plants and pathogens. Recent empirical research elucidates the intricate interactions and regulatory mechanisms between ethylene and pathogens across various plant species. In this review, we provide a comprehensive overview of the latest findings concerning ethylene's role and its regulatory networks in host−pathogen interactions. Additionally, we explore the crosstalk between ethylene and other phytohormones. Points regarding ethylene emission and its modulation by pathogens are also emphasized. Moreover, we also discuss potential unresolved issues in the field that warrant further investigation.

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Section: Susceptibe Hemibiotrophic and Necrotrophic Pathogensmentioning

confidence: 55%

Section: Et Signaling and Promotion Of Plant Susceptibe Hemibiotrophi...mentioning

confidence: 99%

Recent Advances in Dissecting the Function of Ethylene in Interaction between Host and Pathogen

Shu,

Li,

Sheng

et al. 2024

J. Agric. Food Chem.

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“…In walnuts, JrWRKY2 and JrWRKY7 can form homodimers and interact with each other in response to abiotic stress [ 32 ]. In peaches, pERF98-1/2 forms homodimers/heterodimers and interacts with two PpERF1 proteins to amplify the jasmonate/ethylene signaling pathway [ 33 ]. However, reports on co-expression among MT family members are scarce.…”

Section: Discussionmentioning

confidence: 99%

Characterization of metallothionein genes from Broussonetia papyrifera: metal binding and heavy metal tolerance mechanisms

Xu,

Yang,

et al. 2024

BMC Genomics

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Background Broussonetia papyrifera is an economically significant tree with high utilization value, yet its cultivation is often constrained by soil contamination with heavy metals (HMs). Effective scientific cultivation management, which enhances the yield and quality of B. papyrifera, necessitates an understanding of its regulatory mechanisms in response to HM stress. Results Twelve Metallothionein (MT) genes were identified in B. papyrifera. Their open reading frames ranged from 186 to 372 bp, encoding proteins of 61 to 123 amino acids with molecular weights between 15,473.77 and 29,546.96 Da, and theoretical isoelectric points from 5.24 to 5.32. Phylogenetic analysis classified these BpMTs into three subclasses: MT1, MT2, and MT3, with MT2 containing seven members and MT3 only one. The expression of most BpMT genes was inducible by Cd, Mn, Cu, Zn, and abscisic acid (ABA) treatments, particularly BpMT2e, BpMT2d, BpMT2c, and BpMT1c, which showed significant responses and warrant further study. Yeast cells expressing these BpMT genes exhibited enhanced tolerance to Cd, Mn, Cu, and Zn stresses compared to control cells. Yeasts harboring BpMT1c, BpMT2e, and BpMT2d demonstrated higher accumulation of Cd, Cu, Mn, and Zn, suggesting a chelation and binding capacity of BpMTs towards HMs. Site-directed mutagenesis of cysteine (Cys) residues indicated that mutations in the C domain of type 1 BpMT led to increased sensitivity to HMs and reduced HM accumulation in yeast cells; While in type 2 BpMTs, the contribution of N and C domain to HMs’ chelation possibly corelated to the quantity of Cys residues. Conclusion The BpMT genes are crucial in responding to diverse HM stresses and are involved in ABA signaling. The Cys-rich domains of BpMTs are pivotal for HM tolerance and chelation. This study offers new insights into the structure-function relationships and metal-binding capabilities of type-1 and − 2 plant MTs, enhancing our understanding of their roles in plant adaptation to HM stresses.

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Functional analysis of PagERF021 gene in salt stress tolerance in Populus alba × P. glandulosa

Fan,

Gao,

et al. 2024

The Plant Genome

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Poplar trees are crucial for timber and greening, but high levels of salt in the soil have severely limited the yield of poplar. ETS2 repressor factor (ERF) transcription factors play an important role in growth, development, and stress response in eukaryotes. Our study focused on the PagERF021 gene from Populus alba × P. glandulosa, which was significantly upregulated in various tissues under salt stress. Both the tissue‐specific expression pattern and β‐glucuronidase (GUS) staining of proPagERF021‐GUS plants indicated that this gene was predominantly expressed in the roots and stems. The subcellular localization showed that the protein was only localized in the nucleus. The yeast assay demonstrated that this protein had transcriptional activation activity at its C‐terminal and could specifically binding to the MYB‐core cis‐element. The overexpression of PagERF021 gene could scavenge the accumulation of reactive oxygen species and reduce the degree of cellular membrane damage, indicating that this gene enhanced the salt tolerance of poplars. This finding will provide a feasible insight for future research into the regulatory mechanisms of ERF genes in resisting to abiotic stress and the development of new stress‐resistant varieties in plants.

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Two interacting ethylene response factors negatively regulate peach resistance to Lasiodiplodia theobromae

Cited by 12 publications

References 51 publications

Recent Advances in Dissecting the Function of Ethylene in Interaction between Host and Pathogen

Recent Advances in Dissecting the Function of Ethylene in Interaction between Host and Pathogen

Characterization of metallothionein genes from Broussonetia papyrifera: metal binding and heavy metal tolerance mechanisms

Functional analysis of PagERF021 gene in salt stress tolerance in Populus alba × P. glandulosa

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