Effect of Postharvest Treatment with 24-Epibrassinolide and Fennel (Foeniculum vulgare) Essential Oil on Quality Attributes and Storage Life of Orange (Citrus sinensis cv. ‘Valencia’)

Rashidi, Hossein; Amiri, Jafar; Shirzad, Habib

doi:10.1007/s10341-022-00791-7

Cited by 3 publications

(1 citation statement)

References 49 publications

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“…Our results provide evidence that treatment with homobrassinolides (HBr) has an impact on reducing the incidence of Huanglongbing (HLB) in newly planted citrus under high psyllid pressure and endemic HLB conditions in Florida. This study adds to the growing body of knowledge about the positive physiological effects of brassinosteroids, such as the advancement of flowering, acceleration of fruit maturation, and increased fruit yield [24][25][26]. Furthermore, our work aligns with previous studies that demonstrated the capacity of other brassinosteroids to enhance the health of citrus affected by HLB through the activation of plant defense pathways [13].…”

Section: Discussionsupporting

confidence: 81%

Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus Trees

Pérez-Hedo,

Urbaneja,

Alférez

2024

Preprint

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Huanglongbing (HLB), or citrus greening, is a devastating disease impacting citrus trees worldwide, with severe effects particularly noted in Florida. Current strategies to combat HLB have focused on aggressive replanting despite the high susceptibility of young trees to infection. In this context, it is critical to explore agronomic practices that can enhance the health and resistance of young citrus trees to HLB. Here, we demonstrate that treatment with homobrassinolide (HBr), a type of brassinosteroid, on newly planted citrus trees can delay HLB infection and improve tree health amidst the high psyllid pressure conditions endemic to Florida. Our study reveals a significant reduction in HLB infection rates in HBr-treated trees compared to control trees, with only 25% of treated trees testing positive for HLB by six months, in contrast to 100% infection in untreated trees. This delay in infection may be attributed to HBr inducing an immune response and negatively impacting psyllid performance, as subsequently demonstrated in a greenhouse experiment. Our findings suggest that HBr applications could serve as a viable strategy to enhance the resilience of citrus production against HLB, underscoring the need for further investigation into their mechanisms of action and potential role in a comprehensive pest and disease management strategy.

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Section: Discussionsupporting

confidence: 81%

Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus Trees

Pérez-Hedo,

Urbaneja,

Alférez

2024

Preprint

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Spice and herb oil as potential alternative to agrochemicals in postharvest management of fruits and vegetables

Muthusamy,

Balakumbahan,

Rajangam

et al. 2024

Discov Appl Sci

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Fresh fruits and vegetables are susceptible to several diseases caused by many phytopathogenic microbes which affect their shelf life and quality especially after harvesting. To control these postharvest diseases, the use of synthetic agrochemicals are found to be effective but their phytotoxicity has created a great concern on consumer’s health, environment and food security. The continuous application of synthetic agrochemicals have found to be developing resistance to several pathogen populations. Currently, many importing countries enforce strict regulations on the minimal pesticide residual levels in the edible part of fresh produce. All these reasons mentioned above have necessitated to search for the natural and novel formulations as alternatives to replace the conventional chemical application during postharvest treatments. A novel approach to manage the postharvest losses, while retaining the fruit quality, has been implemented by the use of essential oils like cinnamon oil, thyme oil extracted from spices and herbs. This strategy eliminates the need for the use of synthetic formulations, thereby ensuring the global food security. Therefore, this review aims to emphasize the potential use of spice and herb oils as green alternative and as well as protective agents, their mode of action, method of application and their potential challenges by implementing in postharvest management of fruits and vegetables.

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Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus (Citrus sinensis) Trees

Pérez-Hedo,

Urbaneja,

Alférez

2024

Plants

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Huanglongbing (HLB), or citrus greening, is a devastating disease impacting citrus trees worldwide, with severe effects particularly noted in Florida. Current strategies to combat HLB focus on aggressive replanting, despite the high susceptibility of young trees to infection. In this context, it is critical to explore agronomic practices that can enhance the health and resistance of young citrus trees to HLB. Here, we demonstrate that treatment with homobrassinolide (HBr), a type of brassinosteroid, in newly planted citrus (Citrus sinensis) trees can delay HLB infection and improve tree health amidst the high psyllid pressure conditions endemic to Florida. Our study reveals a significant reduction in HLB infection rates in HBr-treated trees compared to control trees, with only 25% of treated trees testing positive for HLB by six months, in contrast to 100% infection in untreated trees. This delay in infection may be attributed to HBr inducing an immune response and negatively impacting psyllid performance, as subsequently demonstrated in a greenhouse experiment. Our findings suggest that HBr applications could serve as a viable strategy to enhance the resilience of citrus production against HLB, underscoring the need for further investigation into their mechanisms of action and potential role in a comprehensive pest and disease management strategy.

show abstract

Effect of Postharvest Treatment with 24-Epibrassinolide and Fennel (Foeniculum vulgare) Essential Oil on Quality Attributes and Storage Life of Orange (Citrus sinensis cv. ‘Valencia’)

Cited by 3 publications

References 49 publications

Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus Trees

Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus Trees

Spice and herb oil as potential alternative to agrochemicals in postharvest management of fruits and vegetables

Homobrassinolide Delays Huanglongbing Progression in Newly Planted Citrus (Citrus sinensis) Trees

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