Pathogen-induced autophagy regulates monolignol transport and lignin formation in plant immunity

Jeon, Hwi Seong; Jang, Eun Jeong; Kim, Jin-Woo; Kim, Seu Ha; Lee, Myoung-Hoon; Nam, Myung Hee; Tobimatsu, Yuki; Park, Ohkmae K.

doi:10.1080/15548627.2022.2085496

Cited by 30 publications

(8 citation statements)

References 112 publications

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“…This is also similar to the determination related to the disease course of rice blast [ 45 , 46 ]. However, the results of decreased C4H activity are different from other reports [ 47 ]. The results demonstrated that peanut infected with F. oxysporum produced a large amount of sorting compounds to improve the resistance of the plant to disease.…”

Section: Discussioncontrasting

confidence: 99%

Transcriptomic–Proteomic Analysis Revealed the Regulatory Mechanism of Peanut in Response to Fusarium oxysporum

Wang,

Zhu,

Zhang

et al. 2024

IJMS

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Peanut Fusarium rot, which is widely observed in the main peanut-producing areas in China, has become a significant factor that has limited the yield and quality in recent years. It is highly urgent and significant to clarify the regulatory mechanism of peanuts in response to Fusarium oxysporum. In this study, transcriptome and proteome profiling were combined to provide new insights into the molecular mechanisms of peanut stems after F. oxysporums infection. A total of 3746 differentially expressed genes (DEGs) and 305 differentially expressed proteins (DEPs) were screened. The upregulated DEGs and DEPs were primarily enriched in flavonoid biosynthesis, circadian rhythm-plant, and plant–pathogen interaction pathways. Then, qRT-PCR analysis revealed that the expression levels of phenylalanine ammonia-lyase (PAL), chalcone isomerase (CHI), and cinnamic acid-4-hydroxylase (C4H) genes increased after F. oxysporums infection. Moreover, the expressions of these genes varied in different peanut tissues. All the results revealed that many metabolic pathways in peanut were activated by improving key gene expressions and the contents of key enzymes, which play critical roles in preventing fungi infection. Importantly, this research provides the foundation of biological and chemical analysis for peanut disease resistance mechanisms.

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Section: Discussioncontrasting

confidence: 99%

Transcriptomic–Proteomic Analysis Revealed the Regulatory Mechanism of Peanut in Response to Fusarium oxysporum

Wang,

Zhu,

Zhang

et al. 2024

IJMS

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“…Taken together, we concluded that cold exposure but not B. cinerea infection promoted plant lignification. Pathogen-triggered lignification was reported before, but mainly after inoculation with bacterial pathogens or in the response of resistant plants to otherwise necrotrophic fungi (Menden et al, 2007; Eynck et al, 2012; Lee et al, 2019; Kim et al, 2020; Jeon et al, 2023). We assume that the absence of B. cinerea -triggered lignification is not caused by fungal lignin degradation as it was reported earlier that B. cinerea is most likely not capable of degrading lignin (Hörmann et al, 2013).…”

Section: Resultsmentioning

confidence: 95%

Cold exposure transiently increases resistance ofArabidopsis thalianaagainst the fungal pathogenBotrytis cinerea

Schütte,

Remmo,

Baier

et al. 2024

Preprint

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A sudden cold exposure (4°C, 24 h) primes resistance ofArabidopsis thalianaagainst the virulent biotrophic pathogenPseudomonas syringaepv.tomatoDC3000 (Pst) for several days. This effect is mediated by chloroplast cold sensing and the activity of stromal and thylakoid-bound ascorbate peroxidases (sAPX/tAPX). In this study, we investigated the impact of such cold exposure on plant defence against the necrotrophic fungusBotrytis cinerea. Plant resistance was transiently enhanced if theB. cinereainfection occurred immediately after the cold exposure, but this cold-enhancedB. cinerearesistance was absent when the cold treatment and the infection were separated by 5 days at normal growth conditions. Plastid ascorbate peroxidases partially contributed to the transient cold-enhanced resistance against the necrotrophic fungus. In response toB. cinerea, the levels of reactive oxygen species (ROS) were significantly higher in cold-pretreated Arabidopsis leaves. Pathogen-triggered ROS levels varied in the absence of sAPX, highlighting the strong capacity for sAPX-dependent ROS regulation in the chloroplast stroma. The cold-enhanced resistance againstB. cinereawas associated with cold-induced plant cell wall modifications, including sAPX-dependent callose formation and significant lignification in cold-treated Arabidopsis leaves.FundingThis work was supported by the German Research Foundation (CRC973/C4) and the FU Berlin.

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“…Conversely, ROS favor autophagy through disrupting the interaction between ATG3 and a cytosolic GAPDH (GAPC) during N -mediated resistance to TMV [ 199 ]. Recently, autophagy was also found to be involved in SA-dependent lignin deposition and cell-wall reinforcement during bacterium-induced HR [ 200 ]. Many viral proteins interact with autophagy [ 201 ]; some interact with GAPCs, resulting either in an increase or decrease in autophagy [ 202 , 203 , 204 ].…”

Section: Important Advances In the Comprehension Of Hrmentioning

confidence: 99%

The Hypersensitive Response to Plant Viruses

Piau,

Schmitt-Keichinger

2023

Viruses

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Plant proteins with domains rich in leucine repeats play important roles in detecting pathogens and triggering defense reactions, both at the cellular surface for pattern-triggered immunity and in the cell to ensure effector-triggered immunity. As intracellular parasites, viruses are mostly detected intracellularly by proteins with a nucleotide binding site and leucine-rich repeats but receptor-like kinases with leucine-rich repeats, known to localize at the cell surface, have also been involved in response to viruses. In the present review we report on the progress that has been achieved in the last decade on the role of these leucine-rich proteins in antiviral immunity, with a special focus on our current understanding of the hypersensitive response.

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Pathogen-induced autophagy regulates monolignol transport and lignin formation in plant immunity

Cited by 30 publications

References 112 publications

Transcriptomic–Proteomic Analysis Revealed the Regulatory Mechanism of Peanut in Response to Fusarium oxysporum

Transcriptomic–Proteomic Analysis Revealed the Regulatory Mechanism of Peanut in Response to Fusarium oxysporum

Cold exposure transiently increases resistance ofArabidopsis thalianaagainst the fungal pathogenBotrytis cinerea

The Hypersensitive Response to Plant Viruses

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