Oligogalacturonides induce resistance in Arabidopsis thaliana by triggering salicylic acid and jasmonic acid pathways against Pst DC3000

Howlader, Prianka; Bose, Santosh Kumar; Jia, Xiaochen; Zhang, Chunlai; Wang, Wenxia; Yin, Heng

doi:10.1016/j.ijbiomac.2020.09.026

Cited by 44 publications

(22 citation statements)

References 47 publications

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“…In contrast, our results suggest that In general, SA plays a central role in resistance to Pst, while JA and ET act antagonistically [42,43]. However, JA is reported to play a cooperative role with SA in the induction of Pst resistance by oligogalacturonides and chitosan oligosaccharides [44,45]. In the present study, we did not observe any enhancement of Pst resistance by the N 2 O 5 gas (Fig 3), which might have been because SA signaling was not predominantly activated compared with JA (S3 Fig) . Because NO 2 -gas exposure enhances Pst resistance via SA signaling [18], the differential effects of N 2 O 5 gas and NO 2 gas on disease resistance can be confirmed again.…”

Section: Plos Onecontrasting

confidence: 85%

Activation of plant immunity by exposure to dinitrogen pentoxide gas generated from air using plasma technology

et al. 2022

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Reactive nitrogen species (RNS) play an important role in plant immunity as signaling factors. We previously developed a plasma technology to partially convert air molecules into dinitrogen pentoxide (N2O5), an RNS whose physiological action is poorly understood. To reveal the function of N2O5 gas in plant immunity, Arabidopsis thaliana was exposed to plasma-generated N2O5 gas once (20 s) per day for 3 days, and inoculated with Botrytis cinerea, Pseudomonas syringae pv. tomato DC3000 (Pst), or cucumber mosaic virus strain yellow (CMV(Y)) at 24 h after the final N2O5 gas exposure. Lesion size with B. cinerea infection was significantly (P < 0.05) reduced by exposure to N2O5 gas. Propagation of CMV(Y) was suppressed in plants exposed to N2O5 gas compared with plants exposed to the air control. However, proliferation of Pst in the N2O5-gas-exposed plants was almost the same as in the air control plants. These results suggested that N2O5 gas exposure could control plant disease depending on the type of pathogen. Furthermore, changes in gene expression at 24 h after the final N2O5 gas exposure were analyzed by RNA-Seq. Based on the gene ontology analysis, jasmonic acid and ethylene signaling pathways were activated by exposure of Arabidopsis plants to N2O5 gas. A time course experiment with qRT-PCR revealed that the mRNA expression of the transcription factor genes, WRKY25, WRKY26, WRKY33, and genes for tryptophan metabolic enzymes, CYP71A12, CYP71A13, PEN2, and PAD3, was transiently induced by exposure to N2O5 gas once for 20 s peaking at 1–3 h post-exposure. However, the expression of PDF1.2 was enhanced beginning from 6 h after exposure and its high expression was maintained until 24–48 h later. Thus, enhanced tryptophan metabolism leading to the synthesis of antimicrobial substances such as camalexin and antimicrobial peptides might have contributed to the N2O5-gas-induced disease resistance.

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Section: Plos Onecontrasting

confidence: 85%

Activation of plant immunity by exposure to dinitrogen pentoxide gas generated from air using plasma technology

et al. 2022

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“…), modifications of plant cell walls (callose deposition, stomata closure, etc. ), and enhanced levels of defense-related antioxidant enzymes [ 84 , 85 , 86 ]. High levels of polyphenol oxidase (PPO), peroxidase, and phenylalanine ammonia lyase (PAL) were observed in tomato plants treated with two endophytic strains that activated systemic resistance in the host plant against Fusarium wilt [ 87 ].…”

Section: Multifunctions Of Endophytes and Their Metabolites In Plant ...mentioning

confidence: 99%

The Multifunctions and Future Prospects of Endophytes and Their Metabolites in Plant Disease Management

et al. 2022

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Endophytes represent a ubiquitous and magical world in plants. Almost all plant species studied by different researchers have been found to harbor one or more endophytes, which protect host plants from pathogen invasion and from adverse environmental conditions. They produce various metabolites that can directly inhibit the growth of pathogens and even promote the growth and development of the host plants. In this review, we focus on the biological control of plant diseases, aiming to elucidate the contribution and key roles of endophytes and their metabolites in this field with the latest research information. Metabolites synthesized by endophytes are part of plant disease management, and the application of endophyte metabolites to induce plant resistance is very promising. Furthermore, multi-omics should be more fully utilized in plant–microbe research, especially in mining novel bioactive metabolites. We believe that the utilization of endophytes and their metabolites for plant disease management is a meaningful and promising research direction that can lead to new breakthroughs in the development of more effective and ecosystem-friendly insecticides and fungicides in modern agriculture.

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“…It has been suggested that the receptor for OGs has a specific concentration Other studies have also reported similar results and noted that lower concentrations of different oligosaccharides have a stronger effect on stimulating plant growth and enhancing host resistance to various pathogens. Howlader et al [12] reported that the effect of OGs on the induction of disease resistance in Arabidopsis decreased as OGs concentration increased from 25-200 mg/L. Davidsson et al [20] also demonstrated that higher concentrations (up to 10 mM) of OGs did not induce an oxidative burst of reactive oxygen species (ROS).…”

Section: Inhibitory Effect Of Ogs On Mycelial Growth Of R Solani Ag-4hgimentioning

confidence: 99%

“…OGs have been reported to affect plant metabolism in a variety of ways, including eliciting a wide range of defense responses that confer protection against plant pathogens [ 3 , 4 , 5 ], regulating plant growth and development [ 6 , 7 ], and acting as signaling molecules in plants by activating a Ca 2+ -mediated signaling pathway [ 5 , 8 ]. The defense responses elicited by OGs include the accumulation of phytoalexins [ 9 , 10 ], glucanases, and chitinases [ 11 ], activation of salicylic acid and jasmonic acid hormone pathways [ 12 ], deposition of callose [ 13 ], production of reactive oxygen species [ 12 , 14 , 15 , 16 ], and generation of nitric oxide [ 12 , 17 , 18 ]. The bioactive characteristics of OGs are influenced by their structure and degree of polymerization (DP).…”

Section: Introductionmentioning

confidence: 99%

Effect of Oligogalacturonides on Seed Germination and Disease Resistance of Sugar Beet Seedling and Root

Zhao

et al. 2022

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Oligogalacturonides (OGs) are a bioactive carbohydrate derived from homogalacturonan. The OGs synthesized in this study significantly inhibited the mycelial growth of Rhizoctonia solani AG-4HGI in vitro, even at a low concentration (10 mg/L). The seed vigor test demonstrated that the application of 50 mg/L OGs to sugar beet seeds significantly increased average germination percentage, germination energy, germination index, and seedling vigor index. The same concentration of OGs also improved the seedling emergence percentage of sugar beet when seeds were sown in soil inoculated with D2 and D31 isolates, respectively. The lesion diameter on mature sugar beet roots caused by R. solani AG-4HGI isolates D2 and D31 also decreased by 40.60% and 39.86%, respectively, in sugar beets roots first treated with 50 mg/mL OGs in the wound site, relative to lesion size in untreated/pathogen inoculated wounds. Sugar beet roots treated with 50 mg/mL OGs prior to inoculation with the D2 isolate exhibited up-regulation of the defense-related genes glutathione peroxidase (GPX) and superoxide dismutase (SOD) by 2.4- and 1.6-fold, respectively, relative to control roots. Sugar beet roots treated with 50 mg/mL OGs prior to inoculation with D31 exhibited a 2.0- and 1.6-fold up-regulation of GPX and SOD, respectively, relative to the control. Our results indicate that OGs have the potential to be used for the protection of sugar beet against R. solani AG-4HGI.

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Oligogalacturonides induce resistance in Arabidopsis thaliana by triggering salicylic acid and jasmonic acid pathways against Pst DC3000

Cited by 44 publications

References 47 publications

Activation of plant immunity by exposure to dinitrogen pentoxide gas generated from air using plasma technology

Activation of plant immunity by exposure to dinitrogen pentoxide gas generated from air using plasma technology

The Multifunctions and Future Prospects of Endophytes and Their Metabolites in Plant Disease Management

Effect of Oligogalacturonides on Seed Germination and Disease Resistance of Sugar Beet Seedling and Root

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