Intergenerational immune priming: Harnessing plant growth promoting rhizobacteria (PGPR) for augmented wheat protection against spot blotch

Devi, Bandana; Tiwari, Menka; Yadav, Nidhi; Singh, Prashant

doi:10.1016/j.pmpp.2023.102164

Cited by 10 publications

(2 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Defense priming allows plants to enter an alert or vigilant state, but the defense mechanism does not activate until the plant is challenged with stress (Kerchev et al, 2020). Priming does not involve continuous expression of defense mechanisms, preventing wasteful allocation of photosynthates for defense in the absence of stress (Devi et al, 2023). This smart strategy saves plant resources and contributes to yield enhancement in hostile environments (Tiwari et al, 2024).…”

Section: Introductionmentioning

confidence: 99%

“…However, wheat production is limited by various biotic stresses, particularly pathogens (Al-Sadi, 2021). Spot blotch, caused by the hemibiotrophic fungus Bipolaris sorokiniana , is one of the most destructive wheat diseases, leading to significant yield losses in warm and humid regions (Devi et al, 2023). The pathogen can persist in contaminated soil, seed, and plant debris, causing up to 100% yield losses (Alkan et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bolstering Wheat’s Immunity: BABA-Mediated Defense Priming AgainstBipolaris sorokinianaAmid Competition

Tiwari,

Singh

2024

Preprint

Self Cite

View full text Add to dashboard Cite

Plants encounter numerous biotic and abiotic challenges, with biotic stresses significantly limiting wheat productivity. Competition for nutrients and space among plants adds another layer of stress. Defense priming is a promising approach to enhancing plant protection against these environmental stresses. This study explores BABA (β-aminobutyric acid) priming in wheat againstBipolaris sorokinianaunder varying degrees of competition. We assessed growth parameters, disease phenotype, biochemical changes, and yield-related traits in both primed and non-primed wheat under disease pressure and competition. Our findings revealed that growth parameters declined in both primed and non-primed wheat as competition increased. However, primed wheat showed better morphological growth than non-primed wheat at each competition level. Under disease pressure, primed wheat demonstrated protection comparable to non-challenged plants at all competition levels, while non-primed plants were susceptible. Non-primed wheat under high-density (HD) conditions exhibited the highest disease susceptibility due to intense competition. BABA-primed plants showed better disease protection at each competition level compared to non-primed plants. BABA priming allowed plants to mitigate competition effects and maintain a consistent defense response. The yield performance of primed wheat was superior to that of non-primed wheat across all competition levels. Our research suggests BABA priming as an effective pesticide-free strategy for crop protection against pathogens under competitive conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bolstering Wheat’s Immunity: BABA-Mediated Defense Priming AgainstBipolaris sorokinianaAmid Competition

Tiwari,

Singh

2024

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

Exploring the dynamics of ISR signaling in maize upon seed priming with plant growth promoting actinobacteria isolated from tea rhizosphere of Darjeeling

Mondal,

Acharya,

Mukherjee

et al. 2024

Arch Microbiol

View full text Add to dashboard Cite

Genetic and ecological inheritance of plant growth-promoting rhizobacteria

Yaghoubi Khanghahi,

Spagnuolo,

Filannino

et al. 2024

Plant Soil

View full text Add to dashboard Cite

Background The utilization of beneficial (Rhizo) bacteria, as an alternative to traditional fertilizers, has emerged as an eco-friendly strategy for ameliorating sustainable agricultural production. This approach aims to reduce the use of agrochemicals and minimize environmental pollution. Scope This review provides an updated insight into the ecological impact of plant growth-promoting rhizobacteria (PGPR), focusing on the resident microbiome and its potential transferability to the next generation of plants. Conclusion In this context, PGPR are assumed to alter the rhizosphere microbiome by outcompeting the existing taxa through nutrient deprivation, acidification of the environment, metabolites production, and consequently, increasing the copiotrophic taxa. Such modifications can maximize the beneficial interactions of plant-PGPR by increasing the bioavailability of nutrients and handling diverse signaling pathways. The effects of interactions within the PGPR-root system can adjust the composition of root exudates and influence the release of bioactive molecules by the root, especially under stress conditions, which can act as signals to reactivate and recruit the beneficial microbes in the rhizosphere and endosphere in favor of the plants. Such changes in microbiome structure can occur gradually over time, even if the survival rate of PGPR in soil and their re-colonization efficiency inside plant tissue are limited. The aforementioned modifications in the rhizosphere and plant microbiome have the potential to increase the survival chances of the progeny plants growing under the same stress conditions. Establishing a comprehensive and robust knowledge framework that addresses all of these issues is critical for significantly advancing the field of microbe-plant interactions and for developing reliable applications of PGPR.

show abstract

Intergenerational immune priming: Harnessing plant growth promoting rhizobacteria (PGPR) for augmented wheat protection against spot blotch

Cited by 10 publications

References 57 publications

Bolstering Wheat’s Immunity: BABA-Mediated Defense Priming AgainstBipolaris sorokinianaAmid Competition

Bolstering Wheat’s Immunity: BABA-Mediated Defense Priming AgainstBipolaris sorokinianaAmid Competition

Exploring the dynamics of ISR signaling in maize upon seed priming with plant growth promoting actinobacteria isolated from tea rhizosphere of Darjeeling

Genetic and ecological inheritance of plant growth-promoting rhizobacteria

Contact Info

Product

Resources

About