Signaling pathway played by salicylic acid, gentisic acid, nitric oxide, polyamines and non-enzymatic antioxidants in compatible and incompatible Solanum-tomato mottle mosaic virus interactions

Nagai, Alice; Torres, Priscila Bezerra; Duarte, L. M. L.; Chaves, Alexandre Levi Rodrigues; Macedo, Amanda Ferreira; Floh, Eny Iochevet Segal; Oliveira, Leandro Francisco de; Zuccarelli, Rafael; Santos, Déborah Yara Alves Cursino dos

doi:10.1016/j.plantsci.2019.110274

Cited by 18 publications

(9 citation statements)

References 61 publications

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“…Furthermore, our results suggest that the up-regulated expression of the CIPALs and BAH genes was key to SA accumulation in watermelon roots (Figures 6-8), and the lower SA content in the resistant variety may help activate watermelon resistance to FON infection at 7 dpi [11,26]. On the contrary, there was a highly elevated SA content in the SF7 group, which was one of factors that led to plant death, and the reason for the SA accumulation might be the disabled metabolisms or some modification activities in the susceptible variety [11,33].…”

Section: Discussionmentioning

confidence: 99%

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Study on the Role of Phytohormones in Resistance to Watermelon Fusarium Wilt

Zhu

Wang

Fang

et al. 2022

Plants

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Fusarium wilt disease is one of the major diseases causing a decline in watermelon yield and quality. Researches have informed that phytohormones play essential roles in regulating plants growth, development, and stress defendants. However, the molecular mechanism of salicylic acid (SA), jasmonic acid (JA), and abscisic acid (ABA) in resistance to watermelon Fusarium wilt remains unknown. In this experiment, we established the SA, JA, and ABA determination system in watermelon roots, and analyzed their roles in against watermelon Fusarium wilt compared to the resistant and susceptible varieties using transcriptome sequencing and RT-qPCR. Our results revealed that the up-regulated expression of Cla97C09G174770, Cla97C05G089520, Cla97C05G081210, Cla97C04G071000, and Cla97C10G198890 genes in resistant variety were key factors against (Fusarium oxysporum f. sp. Niveum) FON infection at 7 dpi. Additionally, there might be crosstalk between SA, JA, and ABA, caused by those differentially expressed (non-pathogen-related) NPRs, (Jasmonate-resistant) JAR, and (Pyrabactin resistance 1-like) PYLs genes, to trigger the plant immune system against FON infection. Overall, our results provide a theoretical basis for watermelon resistance breeding, in which phytohormones participate.

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Section: Discussionmentioning

confidence: 99%

“…Moreover, increasing evidence suggests that WRKY transcription factors play an essential role in plant defense to pathogen infection [33][34][35]. For instance, WRKY70 has been reported as a mediator of suppression of JA and ABA responses by SA in Arabidopsis thaliana [36].…”

Section: Discussionmentioning

confidence: 99%

Study on the Role of Phytohormones in Resistance to Watermelon Fusarium Wilt

Zhu

Wang

Fang

et al. 2022

Plants

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“…Phytohormone SA is recognized as an effective defense signal against biotrophic pathogens [ 27 , 28 ]. Recent studies suggested that SA is related to at least three major strategies to disrupt SA-mediated defense [ 22 , 24 , 29 ], and that the cell survival or death decision is modulated through the temporal expression of SA at the infection site [ 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Study on the Role of Salicylic Acid in Watermelon-Resistant Fusarium Wilt under Different Growth Conditions

Zhu

Wang

Su³

et al. 2022

Plants

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Background: Fusarium wilt disease is leading threat to watermelon yield and quality. Different cultivation cropping systems have been reported as safe and efficient methods to control watermelon Fusarium wilt. However, the role of salicylic acid (SA) in watermelon resistance to Fusarium wilt in these different cultivation systems remains unknown. Methods: in this experiment, we used RNA-seq and qRT-PCR to study the effect of SA biosynthesis on improving watermelon health, demonstrating how it may be responsible for Fusarium wilt resistance under continuous monocropping and oilseed rape rotation systems. Results: the results revealed that the expression of the CIPALs genes was key to SA accumulation in watermelon roots. We observed that the NPR family genes may play different roles in responding to the SA signal. Differentially expressed NPRs and WRKYs may interact with other phytohormones, leading to the amelioration of watermelon Fusarium wilt. Conclusions: further understanding of gene expression patterns will pave the way for interventions that effectively control the disease.

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“…Given that all viroid-infected tomato plants displayed an evident symptomatology, we decided to further investigate if different viroids might trigger a different signaling defense response, since the disturbance of SA and GA homeostasis has been described in viroid infections [ 20 , 21 , 58 , 59 , 60 ]. In agro-inoculated plants, both total SA and GA were statistically accumulated upon infection with the three viroids, the highest levels corresponding to CEVd-agro-inoculated plants ( Figure 4 A,B), which correlates to observed symptomatology ( Figure 2 B) and CEVd accumulation ( Figure 3 ).…”

Section: Discussionmentioning

confidence: 99%

Symptom Severity, Infection Progression and Plant Responses in Solanum Plants Caused by Three Pospiviroids Vary with the Inoculation Procedure

Prol

Marquez‐Molins

Rodrigo

et al. 2021

IJMS

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Infectious viroid clones consist of dimeric cDNAs used to generate transcripts which mimic the longer-than-unit replication intermediates. These transcripts can be either generated in vitro or produced in vivo by agro-inoculation. We have designed a new plasmid, which allows both inoculation methods, and we have compared them by infecting Solanum lycopersicum and Solanum melongena with clones of Citrus exocortis virod (CEVd), Tomato chlorotic dwarf viroid (TCDVd), and Potato spindle tuber viroid (PSTVd). Our results showed more uniform and severe symptoms in agro-inoculated plants. Viroid accumulation and the proportion of circular and linear forms were different depending on the host and the inoculation method and did not correlate with the symptoms, which correlated with an increase in PR1 induction, accumulation of the defensive signal molecules salicylic (SA) and gentisic (GA) acids, and ribosomal stress in tomato plants. The alteration in ribosome biogenesis was evidenced by both the upregulation of the tomato ribosomal stress marker SlNAC082 and the impairment in 18S rRNA processing, pointing out ribosomal stress as a novel signature of the pathogenesis of nuclear-replicating viroids. In conclusion, this updated binary vector has turned out to be an efficient and reproducible method that will facilitate the studies of viroid–host interactions.

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Signaling pathway played by salicylic acid, gentisic acid, nitric oxide, polyamines and non-enzymatic antioxidants in compatible and incompatible Solanum-tomato mottle mosaic virus interactions

Cited by 18 publications

References 61 publications

Study on the Role of Phytohormones in Resistance to Watermelon Fusarium Wilt

Study on the Role of Phytohormones in Resistance to Watermelon Fusarium Wilt

Study on the Role of Salicylic Acid in Watermelon-Resistant Fusarium Wilt under Different Growth Conditions

Symptom Severity, Infection Progression and Plant Responses in Solanum Plants Caused by Three Pospiviroids Vary with the Inoculation Procedure

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