Signaling pathway of induced systemic resistance

Panpatte, Deepak G.; Jhala, Yogeshvari K.; Vyas, R. V.

doi:10.1016/b978-0-12-818469-1.00011-0

Cited by 5 publications

(7 citation statements)

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“…The activation of date palm defense genes by alginate could be linked to an interaction with the main signaling molecules triggering the expression of acquired systemic resistance [61] and induced resistance [62]. It is currently known that plants develop an innate immunity system in response to pathogens, the punctual detection of signaling molecules that constitutes the first step of defense, which consists of a recognition process at the origin of triggered immunity [63][64][65].…”

Section: Discussionmentioning

confidence: 99%

Induction of Defense Gene Expression and the Resistance of Date Palm to Fusarium oxysporum f. sp. Albedinis in Response to Alginate Extracted from Bifurcaria bifurcata

et al. 2022

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In many African countries, the Bayoud is a common disease spread involving the fungus Fusarium oxusporum f. sp. albedinis (Foa). The induction of plant natural defenses through the use of seaweed polysaccharides to help plants against pathogens is currently a biological and ecological approach that is gaining more and more importance. In the present study, we used alginate, a natural polysaccharide extracted from a brown algae Bifurcaria bifurcata, to activate date palm defenses, which involve phenylalanine ammonia-lyase (PAL), a key enzyme of phenylpropanoid metabolism. The results obtained showed that at low concentration (1 g·L−1), alginate stimulated PAL activity in date palm roots 5 times more compared to the negative control (water-treated) after 24 h following treatment and 2.5 times more compared to the laminarin used as a positive stimulator of plant natural defenses (positive control of induction). Using qRT-PCR, the expression of a selection of genes involved in three different levels of defense mechanisms known to be involved in response to biotic stresses were investigated. The results showed that, generally, the PAL gene tested and the genes encoding enzymes involved in early oxidative events (SOD and LOX) were overexpressed in the alginate-treated plants compared to their levels in the positive and negative controls. POD and PR protein genes selected encoding β-(1,3)-glucanases and chitinases in this study did not show any significant difference between treatments; suggesting that other genes encoding POD and PR proteins that were not selected may be involved. After 17 weeks following the inoculation of the plants with the pathogen Foa, treatment with alginate reduced the mortality rate by up to 80% compared to the rate in control plants (non-elicited) and plants pretreated with laminarin, which agrees with the induction of defense gene expression and the stimulation of natural defenses in date palm with alginate after 24 h. These results open promising prospects for the use of alginate in agriculture as an inducer that triggers immunity of plants against telluric pathogens in general and of date palm against Fusarium oxysporum f. sp. albedinis in particular.

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Section: Discussionmentioning

confidence: 99%

Induction of Defense Gene Expression and the Resistance of Date Palm to Fusarium oxysporum f. sp. Albedinis in Response to Alginate Extracted from Bifurcaria bifurcata

et al. 2022

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“…A wide range of microbes use the strategy of biocontrol agents that trigger ISR in plants, confirmed their ability to initiate or enhance in the production of plant defense enzymes such as; polyphenol oxidase (PPO), peroxidase and phenylalanine ammonia lyase ( Kannojia et al, 2019 ; Antar et al, 2021 ; Santoyo et al, 2021 ). Several studies on molecular mechanisms revealed that PGPR can be used against several pathogens to induce priming of volatile compound without using Npr1 (SA insensitive or non-expresser of PR) gene but the expression of ET signaling is required ( Tyagi et al, 2018 ; Panpatte et al, 2020 ; Abbasi et al, 2021 ).…”

Section: Plant Based Management Approaches To Control Potato Stem Rot...mentioning

confidence: 99%

Neocosmospora rubicola, a stem rot disease in potato: Characterization, distribution and management

Riaz

Akhtar²,

Msimbira³

et al. 2022

Front. Microbiol.

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Potato (Solanum tuberosum L.) is one of the most important crops in maintaining global food security. Plant stand and yield are affected by production technology, climate, soil type, and biotic factors such as insects and diseases. Numerous fungal diseases including Neocosmospora rubicola, causing stem rot, are known to have negative effects on potato growth and yield quality. The pathogen is known to stunt growth and cause leaf yellowing with grayish-black stems. The infectivity of N. rubicola across a number of crops indicates the need to search for appropriate management approaches. Synthetic pesticides application is a major method to mitigate almost all potato diseases at this time. However, these pesticides significantly contribute to environmental damage and continuous use leads to pesticide resistance by pathogens. Consumers interest in organic products have influenced agronomists to shift toward the use of biologicals in controlling most pathogens, including N. rubicola. This review is an initial effort to carefully examine current and alternative approaches to control N. rubicola that are both environmentally safe and ecologically sound. Therefore, this review aims to draw attention to the N. rubicola distribution and symptomatology, and sustainable management strategies for potato stem rot disease. Applications of plant growth promoting bacteria (PGPB) as bioformulations with synthetic fertilizers have the potential to increase the tuber yield in both healthy and N. rubicola infested soils. Phosphorus and nitrogen applications along with the PGPB can improve plants uptake efficiency and reduce infestation of pathogen leading to increased yield. Therefore, to control N. rubicola infestation, with maximum tuber yield benefits, a pre-application of the biofertilizer is shown as a better option, based on the most recent studies. With the current limited information on the disease, precise screening of the available resistant potato cultivars, developing molecular markers for resistance genes against N. rubicola will assist to reduce spread and virulence of the pathogen.

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“…As mentioned above, there are two types of systemic resistance mechanisms in plants include systemic acquired resistance and induced systemic resistance (Fig. 1) (Panpatte et al 2020;Zhang et al 2020), both of which are mediated by phytohormones, such as salicylic acid, jasmonic acid and ethylene (Romanazzi et al 2016). SAR and ISR are elicited via different routes, but are phenotypically similar.…”

Section: Induced Resistancementioning

confidence: 99%

“…ISR is independent of salicylic acid and does not involve PR protein accumulation. Its signalling pathway depends on other hormones, such as jasmonic acid and ethylene, as well as NPR1 as an initial signalling protein (Panpatte et al 2020). NPR1 is a central regulator of both defence pathways because after receiving the signal, it promotes the expression of genes related to plant defence, thereby initiating SAR or ISR (Jain et al 2018).…”

Section: Induced Resistancementioning

confidence: 99%

“…In induced resistance, regardless of whether via SAR or ISR, the activation of plant defence mechanisms occurs not only at the induction site, but also in other parts of the plant (Heil and Bostock 2002;Fu and Dong 2013;Pieterse et al 2014;Jain et al 2018;Panpatte et al 2020), indicating the systemic nature of the phenomenon. In turn, elicitors can be either biotic or abiotic.…”

Section: Induced Resistancementioning

confidence: 99%

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Potential of resistance inducers for soybean rust management

Paula

Holz

Souza

et al. 2021

Canadian Journal of Plant Pathology

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The induction of resistance is an important strategy in integrated plant disease management. This strategy has a great potential to be adopted by farmers, motivated by the worldwide demand for a reduced pesticide use in food production. Studies have shown that resistance inducers are effective against a wide variety of pathogens, including Phakopsora pachyrhizi, the causal agent of Asian soybean rust. This review aims to synthesize current knowledge on the use of induced resistance for soybean rust management. Special emphasis is placed on commercially available products and potential resistance inducers described in the literature. Finally, perspectives and challenges regarding the use of resistance inducers for soybean rust management are highlighted.

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Signaling pathway of induced systemic resistance

Cited by 5 publications

References 75 publications

Induction of Defense Gene Expression and the Resistance of Date Palm to Fusarium oxysporum f. sp. Albedinis in Response to Alginate Extracted from Bifurcaria bifurcata

Induction of Defense Gene Expression and the Resistance of Date Palm to Fusarium oxysporum f. sp. Albedinis in Response to Alginate Extracted from Bifurcaria bifurcata

Neocosmospora rubicola, a stem rot disease in potato: Characterization, distribution and management

Potential of resistance inducers for soybean rust management

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