Brassinosteroids and Salicylic Acid as Chemical Agents to Ameliorate Diverse Environmental Stresses in Plants

Vardhini, B. Vidya

doi:10.1002/9781119552154.ch19

Cited by 5 publications

(5 citation statements)

References 138 publications

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“…Interestingly, the yield reductions caused by drought treatment were lessened due to the DI-31 action (~ 11% and ~ 14% in susceptible and tolerant cultivars, respectively). In agreement with our results, several authors reported that BRs, like EBL, 28-homobrassinolide and brassinolide, reduced yield losses in several legumes like lentil, pea, mungbean, cowpea and soybean submitted to drought 50,51 . Previously, we discussed the DI-31 potential dual-action in soybean physiology as a BRs-like growth promoter and a defence-inductor enhancer.…”

Section: Discussionsupporting

confidence: 93%

A Brassinosteroid Functional Analogue Increases Soybean Drought Resilience

Perez-Borroto

Guzzo

Malavera

et al. 2022

Preprint

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Drought severely affects soybean productivity, challenging breeding/management strategies to increase crop resilience. Hormone-based biostimulants like brassinosteroids (BRs) modulate growth/defence trade-off, mitigating yield losses; yet, natural molecule's low stability challenges the development of cost-effective and long-lasting analogues. Here, we investigated for the first time the effects of BR functional analogue DI-31 in soybean physiology under drought by assessing changes in growth, photosynthesis, water relations, antioxidant metabolism, nodulation, and nitrogen homeostasis. Moreover, DI-31 application frequencies' effects on crop cycle and commercial cultivars yield stabilisation under drought were assessed. A single foliar application of DI-31 favoured plant drought tolerance, preventing reductions in canopy development and enhancing plant performance and water use since the early stages of stress. The analogue also increased the antioxidant response, favouring nitrogen homeostasis maintenance and attenuating the nodular senescence. Moreover, foliar applications of DI-31 every 21 days enhanced the absolute yield by ~ 9% and reduced drought-induced yield losses by ~ 7% in four commercial cultivars, increasing their drought tolerance efficiency by ~ 12%. These findings demonstrated the practical value of DI-31 as an environmentally friendly alternative for integrative soybean resilience management under drought.

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Section: Discussionsupporting

confidence: 93%

A Brassinosteroid Functional Analogue Increases Soybean Drought Resilience

Perez-Borroto

Guzzo

Malavera

et al. 2022

Preprint

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“…The lack of flowering synchronization can also be overcome by the previous budbreaking agents, while in some species, artificial pollination may be the solution too. A high solar irradiance in summer (heat stress) can be alleviated by overhead net installation (net shading) [84,94,95] (Figure 8), melatonin [96][97][98], jasmonates [99], brassinosteroids [100,101], silicon [102], as well as sugars and sugar alcohols [103,104], and reflecting agent spraying (such as talc, kaolin clay particles, attapoulgite, calcium carbonate) [84,105,106] (Figure 9). Heat stress along with water stress can be also alleviated by the use of products containing reflecting agents as well as osmolytes (such as proline, glycine betaine, trehalose, mannitol, sorbitol, potassium products, etc.)…”

Section: Possible Mitigation Measuresmentioning

confidence: 99%

“…[106,[119][120][121]. At the same time, salinity stress may impose toxicity, ionic imbalance, and osmotic stress, which can be overcome by the use of osmolytes as described earlier [85,103,104,108]; seaweed extracts [112]; melatonin [96,97,118]; salicylic acid [110,111,122]; ABA [85,114]; polyamines [85,113,123]; brassinosteroids [94,100,101]; silicon [102]; PGPRs and PGPFs [85,94,115,116]; calcium, potassium, as well as nitrates (if sodium chloride is the saline factor) [84,85,107,122] added into the soil; biochar as well as humate compounds' incorporation in the soil [117]; jasmonic acid [99,107,122]; ascorbic acid; and other antioxidants [119,122] to reduce oxidation stress. In winter, low temperatures may jeopardize plant survival, and countermeasures have to be taken.…”

Section: Possible Mitigation Measuresmentioning

confidence: 99%

“…In winter, low temperatures may jeopardize plant survival, and countermeasures have to be taken. Osmolytes [104], coppercontaining products, ABA [84,114], antioxidants [121], brassinosteroids [94,100,101], melatonin [98], potassium [84], salicylic acid [100,110,111,124], proline [84], and polyamines [113,123] may confer some tolerance as well as overhead irrigation (spraying) (Figure 10). The reduced flower bud differentiation (observed both in olive and kiwifruit during the last few years) is a significant factor for the economic viability of the cultivation.…”

Section: Possible Mitigation Measuresmentioning

confidence: 99%

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Climate Change Challenges in Temperate and Sub-Tropical Fruit Tree Cultivation

Roussos

2024

Encyclopedia

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In the last few years, the world has experienced the impacts of climate change, such as elevated mean annual temperature, extreme weather events, drought, etc. Among living organisms, perennial plant species are the ones mostly exposed to climate change impacts, as they may experience different extreme events within the same year, such as flooding during some periods and drought in summer months, extremely low temperatures in winter but excessively high temperatures in summer, etc. Climate change affects a range of physiological functions of temperate fruit and nut tree species, such as their phenophases, bud dormancy release and vernalization, pollination and fruit set, fruit growth and quality, as well as bud sprouting and growth initiation. Besides these, the impact of climate change on pests, diseases, and weeds may generate significant negative interactions with tree physiology, threatening food production, food safety, and human welfare. In the present manuscript, a general aspect of climate change impacts on fruits’ and nut trees’ physiological functions is described and commented on.

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“…Brassinosteroids (BRs), a class of steroid hormones (Table 2), play a crucial role in regulating diverse physiological processes in plants, encompassing growth, development, reproduction, and stress responses (Krishna, 2003;Hayat et al, 2019;Nolan et al, 2020). Particularly, BRs enhance plant defences against both abiotic and biotic stress (Krishna, 2003;Vardhini et al, 2010). In the context of biotic stress, BRs orchestrate plant defence mechanisms against pests and pathogens, contributing to PAMP-triggered immunity (PTI) and effector-triggered immunity (ETI) responses (Zipfel, 2009;Naveed et al, 2020).…”

Section: Phytohormones and Plant Defencementioning

confidence: 99%

Harnessing Phytohormones: Advancing Plant Growth and Defence Strategies for Sustainable Agriculture

Ali,

Mukarram,

Ojo

et al. 2024

Physiologia Plantarum

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Phytohormones, pivotal regulators of plant growth and development, are increasingly recognized for their multifaceted roles in enhancing crop resilience against environmental stresses. In this review, we provide a comprehensive synthesis of current research on utilizing phytohormones to enhance crop productivity and fortify their defence mechanisms. Initially, we introduce the significance of phytohormones in orchestrating plant growth, followed by their potential utilization in bolstering crop defences against diverse environmental stressors. Our focus then shifts to an in‐depth exploration of phytohormones and their pivotal roles in mediating plant defence responses against biotic stressors, particularly insect pests. Furthermore, we highlight the potential impact of phytohormones on agricultural production while underscoring the existing research gaps and limitations hindering their widespread implementation in agricultural practices. Despite the accumulating body of research in this field, the integration of phytohormones into agriculture remains limited. To address this discrepancy, we propose a comprehensive framework for investigating the intricate interplay between phytohormones and sustainable agriculture. This framework advocates for the adoption of novel technologies and methodologies to facilitate the effective deployment of phytohormones in agricultural settings and also emphasizes the need to address existing research limitations through rigorous field studies. By outlining a roadmap for advancing the utilization of phytohormones in agriculture, this review aims to catalyse transformative changes in agricultural practices, fostering sustainability and resilience in agricultural settings.

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Brassinosteroids and Salicylic Acid as Chemical Agents to Ameliorate Diverse Environmental Stresses in Plants

Cited by 5 publications

References 138 publications

A Brassinosteroid Functional Analogue Increases Soybean Drought Resilience

A Brassinosteroid Functional Analogue Increases Soybean Drought Resilience

Climate Change Challenges in Temperate and Sub-Tropical Fruit Tree Cultivation

Harnessing Phytohormones: Advancing Plant Growth and Defence Strategies for Sustainable Agriculture

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