Green Vaccination: A Boon to Plant Immunity and Sustainability

Tiwari, Menka; Singh, Prashant

doi:10.5958/2319-1198.2021.00019.1

Cited by 5 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Enhancing the natural immune system of plants offers a safe strategy for plant protection against environmental stresses. One such approach is defense priming, which involves exposing plants to a small dose of stress to enhance their sensitivity and responsiveness to future attacks (Tiwari and Singh, 2021b; Hönig et al, 2023). Primed plants exhibit a faster and stronger defense response due to their prior experience of stress (Mauch-Mani et al, 2017; Tiwari et al, 2022a).…”

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

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%

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

“…Priming includes supporting plant defences such that they are always ready to act, but are not fully activated (yet). Plant defence priming is an intentional, regulated, and on-demand technique because in this method the plant is deliberately subjected to small dose of stress which triggers the defence response only when the plant is attacked by a pathogen ( Tiwari and Singh, 2021b ). The sensitization of stress responsiveness during induced resistance is called priming.…”

Section: Introductionmentioning

confidence: 99%

Heritable priming by Trichoderma: A sustainable approach for wheat protection against Bipolaris sorokiniana

et al. 2022

Self Cite

View full text Add to dashboard Cite

Crop plants encounter a variety of biotic challenges in the field and faces significant reduction in crop yield. In the current scenario of an ever increasing global population, there is an urgent need to protect plant health by using sustainable approach to maximize the crop productivity and to mitigate the food demands. Nowadays, we mostly rely on chemical crop protection techniques, which are causing a number of environmental and health difficulties. Defence priming is a chemical-free, eco-friendly, and sustainable strategy of crop protection, which is also called “green vaccination. In the present study, for the first time, we used Trichoderma as a priming agent to protect wheat crop from spot blotch disease. We have established Trichoderma-mediated defence priming in wheat against Bipolaris sorokiniana for sustainable crop improvement. We have characterised the morphological, disease phenotype, biochemical and yield parameters of Trichoderma-primed and non-primed wheat under disease pressure. Trichoderma-primed plants were found to be more protected against B. sorokiniana as compared to non-primed plants. Biochemical studies indicated that there is no direct defence response after priming stimulus but the defence response was activated only after triggering stimulus in terms of enhanced defence metabolites in primed plants as compared to non-primed plants. In the present study, since defence was activated only when required, that is under disease pressure, there was no unnecessary allocation of resources towards defence. Hence, no yield penalty was shown in primed plants as compared to control. We further evaluated the inheritance of primed state to the next generation and found that progeny of primed parents also performed better than progeny of non-primed parents under disease pressure in terms of protection from B. sorokiniana as well as yield performance. This strategy has the potential to protect crop without any yield penalty and causing environmental degradation. Our research findings indicate that Trichoderma-mediated defence priming could be an alternative approach for improving wheat productivity under biotic stress. To be our best knowledge, this is the first documented report for the Trichoderma-mediated defence priming and induced inheritance in wheat plant. This study will open new arenas in sustainable crop protection strategies for the exploitation of defence priming in crop plants.

show abstract