Integrated full-length transcriptome and metabolome analysis of the early defense mechanisms in Paulownia witches’ broom disease

Zhao, Xiaogai; Cao, Xin; Cao, Yabing; Zhong, Zhao; Fan, Guoqiang

doi:10.1080/14620316.2022.2136586

Cited by 1 publication

(2 citation statements)

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“…Third generation sequencing of full-length transcriptomes has also been performed on paulownia, to gauge gene expression responses to phytoplasmas. Combined with metabolome data, a model of the early defense response to PaWB disease was constructed [59]. Mining the paulownia genome data identified some transcription factor (TF) and functional gene families, such as ARF [77], Aux/IAA [78], BTB [79], bZIP [80], CaM/CML [81], GRAS [82], MADS [83], NCED [84], NLR [85], PP2C [86], SERK [87], SPL [88], TCP [89], UBC E2 [90], and WPR [91], that could be affected by phytoplasma colonization.…”

Section: Transcriptional Responsesmentioning

confidence: 99%

“…AS increases transcriptome plasticity and proteome diversity and is an important post-transcriptional regulatory mechanism. Analysis using high-throughput transcriptome sequencing has identified many alternative splicing variants of paulownia mRNAs [56,58,59,65,66]. The AS frequency in healthy paulownia is higher than in PaWB-diseased samples.…”

Section: Splice Variantsmentioning

confidence: 99%

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Paulownia Witches’ Broom Disease: A Comprehensive Review

Zhang,

Qiao,

et al. 2024

Microorganisms

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Phytoplasmas are insect-transmitted bacterial pathogens associated with diseases in a wide range of host plants, resulting in significant economic and ecological losses. Perennial deciduous trees in the genus Paulownia are widely planted for wood harvesting and ornamental purposes. Paulownia witches’ broom (PaWB) disease, associated with a 16SrI-D subgroup phytoplasma, is a destructive disease of paulownia in East Asia. The PaWB phytoplasmas are mainly transmitted by insect vectors in the Pentatomidae (stink bugs), Miridae (mirid bugs) and Cicadellidae (leafhoppers) families. Diseased trees show typical symptoms, such as branch and shoot proliferation, which together are referred to as witches’ broom. The phytoplasma presence affects the physiological and anatomical structures of paulownia. Gene expression in paulownia responding to phytoplasma presence have been studied at the transcriptional, post-transcriptional, translational and post-translational levels by high throughput sequencing techniques. A PaWB pathogenic mechanism frame diagram on molecular level is summarized. Studies on the interactions among the phytoplasma, the insect vectors and the plant host, including the mechanisms underlying how paulownia effectors modify processes of gene expression, will lead to a deeper understanding of the pathogenic mechanisms and to the development of efficient control measures.

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