PeTGA1 enhances disease resistance against Colletotrichum gloeosporioides through directly regulating PeSARD1 in poplar

Yang, Yanli; Li, Huiguang; Wang, Hou‐Ling; Yang, Qi; Yan, Donghui; Zhang, Ying; Feng, Chao; Niu, Meng-Xue; Liu, Chao; Yin, Weilun; Xia, Xinli

doi:10.1016/j.ijbiomac.2022.06.099

Cited by 12 publications

(5 citation statements)

References 74 publications

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“…The pathogenesis-related protein PR can be induced to activate SAR after pathogens invasion. TGA TFs directly bind to multiple disease-related gene promoters to initiate the expression of disease resistance genes in SAR [ 38 ]. In our study, the DEGs encoding PR1 genes such as TRINITY_DN52956_c0_g1 and TRINITY_DN52956_c0_g2 were predominantly up-regulated, and the TGA gene (TRINITY_DN37463_c0_g1) showed significant up-regulation.…”

Section: Discussionmentioning

confidence: 99%

Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development

Chen,

Hu,

Huang

et al. 2024

BMC Plant Biol

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Background Aconitum carmichaelii Debx. has been widely used as a traditional medicinal herb for a long history in China. It is highly susceptible to various dangerous diseases during the cultivation process. Downy mildew is the most serious leaf disease of A. carmichaelii, affecting plant growth and ultimately leading to a reduction in yield. To better understand the response mechanism of A. carmichaelii leaves subjected to downy mildew, the contents of endogenous plant hormones as well as transcriptome sequencing were analyzed at five different infected stages. Results The content of 3-indoleacetic acid, abscisic acid, salicylic acid and jasmonic acid has changed significantly in A. carmichaelii leaves with the development of downy mildew, and related synthetic genes such as 9-cis-epoxycarotenoid dioxygenase and phenylalanine ammonia lyase were also significant for disease responses. The transcriptomic data indicated that the differentially expressed genes were primarily associated with plant hormone signal transduction, plant-pathogen interaction, the mitogen-activated protein kinase signaling pathway in plants, and phenylpropanoid biosynthesis. Many of these genes also showed potential functions for resisting downy mildew. Through weighted gene co-expression network analysis, the hub genes and genes that have high connectivity to them were identified, which could participate in plant immune responses. Conclusions In this study, we elucidated the response and potential genes of A. carmichaelii to downy mildew, and observed the changes of endogenous hormones content at different infection stages, so as to contribute to the further screening and identification of genes involved in the defense of downy mildew.

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Section: Discussionmentioning

confidence: 99%

Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development

Chen,

Hu,

Huang

et al. 2024

BMC Plant Biol

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“…PeTGA1 activates the expression of PeSARD1, which is an important regulator of SA biosynthesis. Therefore, transgenic white poplar overexpressing PeTGA1 has an increased SA content and responds more efficiently to C. gloeosporioides infection compared to WT [223].…”

Section: Transcription Factors Regulating the Immune Responsementioning

confidence: 99%

Editing Metabolism, Sex, and Microbiome: How Can We Help Poplar Resist Pathogens?

Kovalev,

Gladysh,

Bogdanova

et al. 2024

IJMS

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Poplar (Populus) is a genus of woody plants of great economic value. Due to the growing economic importance of poplar, there is a need to ensure its stable growth by increasing its resistance to pathogens. Genetic engineering can create organisms with improved traits faster than traditional methods, and with the development of CRISPR/Cas-based genome editing systems, scientists have a new highly effective tool for creating valuable genotypes. In this review, we summarize the latest research data on poplar diseases, the biology of their pathogens and how these plants resist pathogens. In the final section, we propose to plant male or mixed poplar populations; consider the genes of the MLO group, transcription factors of the WRKY and MYB families and defensive proteins BbChit1, LJAMP2, MsrA2 and PtDef as the most promising targets for genetic engineering; and also pay attention to the possibility of microbiome engineering.

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“…This is consistent with previous findings in strawberry in which, after infection with C. gloeosporioides , the expression of heat‐shock protein (HSP17.4) activated the up‐regulation of response genes NPR1, TGA, and PR‐1 of the SA signalling pathway and synergistically suppressed downstream signals of JA, contributing to resistance of the plants to infection (Fang et al, 2021). Interestingly, TGA1 from Populus euphratica (poplar) enhances disease resistance against C. gloeosporioides by directly regulating PeSARD1 (Systemic Acquired Resistance Deficient 1), which is an important regulator for SA biosynthesis, thus this mechanism elevates SA levels, thereby activating the expression of PR1 (Yang et al, 2022). SAR protective action mainly depends on SA and NPR‐1.…”

Section: Anthracnose Disease‐resistance Mechanisms In Tea Plantsmentioning

confidence: 99%

Advances in understanding the mechanism of resistance to anthracnose and induced defence response in tea plants

Jeyaraj

Elango

Chen

et al. 2023

Molecular Plant Pathology

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The tea plant (Camellia sinensis) is susceptible to anthracnose disease that causes considerable crop loss and affects the yield and quality of tea. Multiple Colletotrichum spp. are the causative agents of this disease, which spreads quickly in warm and humid climates. During plant–pathogen interactions, resistant cultivars defend themselves against the hemibiotrophic pathogen by activating defence signalling pathways, whereas the pathogen suppresses plant defences in susceptible varieties. Various fungicides have been used to control this disease on susceptible plants, but these fungicide residues are dangerous to human health and cause fungicide resistance in pathogens. The problem‐solving approaches to date are the development of resistant cultivars and ecofriendly biocontrol strategies to achieve sustainable tea cultivation and production. Understanding the infection stages of Colletotrichum, tea plant resistance mechanisms, and induced plant defence against Colletotrichum is essential to support sustainable disease management practices in the field. This review therefore summarizes the current knowledge of the identified causative agent of tea plant anthracnose, the infection strategies and pathogenicity of C. gloeosporioides, anthracnose disease resistance mechanisms, and the caffeine‐induced defence response against Colletotrichum infection. The information reported in this review will advance our understanding of host–pathogen interactions and eventually help us to develop new disease control strategies.

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PeTGA1 enhances disease resistance against Colletotrichum gloeosporioides through directly regulating PeSARD1 in poplar

Cited by 12 publications

References 74 publications

Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development

Comparative transcriptome revealed the molecular responses of Aconitum carmichaelii Debx. to downy mildew at different stages of disease development

Editing Metabolism, Sex, and Microbiome: How Can We Help Poplar Resist Pathogens?

Advances in understanding the mechanism of resistance to anthracnose and induced defence response in tea plants

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