Interactions between nutrient and Huanglongbing pathogen in citrus: An overview and implications

Dong, Zhihao; Srivastava, Anoop Kumar; Liu, Xiaodong; Riaz, Muhammad; Gao, Yu; Liang, Xiao-Min; Tan, Qiling; Sun, Xiulan; Wu, Songwei; Hu, Chengxiao

doi:10.1016/j.scienta.2021.110511

Cited by 17 publications

(12 citation statements)

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“…Likewise, pathogen blocks nutrient resources, either inside infected tissues or within the rhizosphere, leading to under-supply of the number of nutrients ( Dordas, 2008 ; da Silva et al, 2020 ). Elevated micronutrient fertilization is popularly utilized to enhance the growth and development of HLB-infected citrus plants ( Dong et al, 2021b ). Additionally, micronutrient is reported to elicit systemic acquired resistance in citrus plants acting as elicitors to reduce disease-related injuries and inhibit the development of pathogens, either by knock-down effect or by controlling gene-linked pathogenicity ( Dordas, 2008 ; Spann and Schumann, 2010 ; Gottwald et al, 2012 ; Fones and Preston, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, copper (Cu) has also been applied for several years to control the phytosanitary problems triggered by micro-communities ( Russell, 2005 ; Trivedi et al, 2021 ). Considering all these collectively, it is feasible that enhancing the concentration of micronutrients in plants might reduce the deleterious impact of HLB in citrus plants ( Dong et al, 2021b ). Despite these facts, the effect of various micronutrients supplies on C Las acquisition by adults and nymphs of citrus psyllids is still in a rudimentary stage of our understanding.…”

Section: Introductionmentioning

confidence: 99%

“…Considering the severity of C Las imparting substantial loss of plants vigor and soil health, several researchers are using microbes mediated remediation technology in the current cultivation scenario ( Bora and Bora, 2020 , 2021 ; Dong et al, 2021b ). Microorganisms have been used as biocontrol/biopesticides ( Mishra et al, 2018 ; Saikia et al, 2021 ) as well as biofertilizers biostimulants ( Ngullie et al, 2015 ; Srivastava et al, 2015 , 2021 ).…”

Section: Introductionmentioning

confidence: 99%

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Bioprospecting Microbiome for Soil and Plant Health Management Amidst Huanglongbing Threat in Citrus: A Review

et al. 2022

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Microorganisms have dynamic and complex interactions with their hosts. Diverse microbial communities residing near, on, and within the plants, called phytobiome, are an essential part of plant health and productivity. Exploiting citrus-associated microbiomes represents a scientific approach toward sustained and environment-friendly module of citrus production, though periodically exposed to several threats, with Huanglongbing (HLB) predominantly being most influential. Exploring the composition and function of the citrus microbiome, and possible microbial redesigning under HLB disease pressure has sparked renewed interest in recent times. A concise account of various achievements in understanding the citrus-associated microbiome, in various niche environments viz., rhizosphere, phyllosphere, endosphere, and core microbiota alongside their functional attributes has been thoroughly reviewed and presented. Efforts were also made to analyze the actual role of the citrus microbiome in soil fertility and resilience, interaction with and suppression of invading pathogens along with native microbial communities and their consequences thereupon. Despite the desired potential of the citrus microbiota to counter different pathogenic diseases, utilizing the citrus microbiome for beneficial applications at the field level is yet to be translated as a commercial product. We anticipate that advancement in multiomics technologies, high-throughput sequencing and culturing, genome editing tools, artificial intelligence, and microbial consortia will provide some exciting avenues for citrus microbiome research and microbial manipulation to improve the health and productivity of citrus plants.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bioprospecting Microbiome for Soil and Plant Health Management Amidst Huanglongbing Threat in Citrus: A Review

et al. 2022

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“…For several years, it has been reported that the application of enhanced nutritional products can extend the vigor of HLB-affected citrus and trigger citrus defense against C Las ( Spann and Schumann, 2009 ; Shen et al, 2013 ; da Silva et al, 2020 ; Shahzad et al, 2020 ; Dong et al, 2021 ). Although nutrient treatments have no effect on reducing C Las titer and cannot enhance yield of HLB-affected citrus in the field ( Gottwald et al, 2012 ; da Silva et al, 2020 ; Phuyal et al, 2020 ), the application of macro-and micronutrients have been adopted worldwide as they induce host defenses and help maintain production of HLB-affected trees.…”

Section: Host Defense Triggered By Agentsmentioning

confidence: 99%

“…Currently, many strategies have been developed for HLB mitigation, including application of antimicrobials ( Zhang et al, 2011a , 2012 , 2014 , 2021 ; Hu and Wang, 2016 ; Hu et al, 2018 ; Yang et al, 2018 ), thermotherapy ( Hoffman et al, 2013 ; Fan et al, 2016 ; Yang et al, 2016b ; Doud et al, 2017 ; Ghatrehsamani et al, 2019 ; Vincent et al, 2019 ), macro-and micronutrients ( Spann and Schumann, 2009 ; Gottwald et al, 2012 ; Rouse et al, 2017 ; Mattos-Jr et al, 2020 ; Dong et al, 2021 ; Zhou et al, 2021 ), plant defense inducers ( Canales et al, 2016 ; Li et al, 2016 , 2019 , 2021a ; Hu et al, 2018 ; Wang, 2021 ), control of the insect vector ( Grafton-Cardwell et al, 2013 ; Boina and Bloomquist, 2015 ; Cocuzza et al, 2017 ; Pierre et al, 2021 ), biocontrol ( Trivedi et al, 2011 ; Hopkins and Wall, 2021 ; Nan et al, 2021 ; Poveda et al, 2021 ), and eradication of HLB symptomatic citrus trees ( Bassanezi et al, 2013 ; Yuan et al, 2020 ). However, these strategies have shown limited success in field applications and effective HLB management remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

An Overview of the Mechanisms Against “Candidatus Liberibacter asiaticus”: Virulence Targets, Citrus Defenses, and Microbiome

Yang

Ancona

2022

Front. Microbiol.

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Citrus Huanglongbing (HLB) or citrus greening, is the most destructive disease for citrus worldwide. It is caused by the psyllid-transmitted, phloem-limited bacteria “Candidatus Liberibacter asiaticus” (CLas). To date, there are still no effective practical strategies for curing citrus HLB. Understanding the mechanisms against CLas can contribute to the development of effective approaches for combatting HLB. However, the unculturable nature of CLas has hindered elucidating mechanisms against CLas. In this review, we summarize the main aspects that contribute to the understanding about the mechanisms against CLas, including (1) CLas virulence targets, focusing on inhibition of virulence genes; (2) activation of citrus host defense genes and metabolites of HLB-tolerant citrus triggered by CLas, and by agents; and (3) we also review the role of citrus microbiome in combatting CLas. Finally, we discuss novel strategies to continue studying mechanisms against CLas and the relationship of above aspects.

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Effect of tree height and spraying methods on Diaphorina citri kuwayama endosymbionts in the context of Huanglongbing disease management in citrus orchards

Hussain,

Zhong,

Tao

et al. 2023

Pest Management Science

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BACKGROUNDHuanglongbing (caused by Candidatus Liberibacter asiaticus) is the most damaging disease of citrus around the world. This study investigated the effects of citrus tree age on Diaphorina citri Kuwayama mortality, endosymbiont responses, and Huanglongbing distribution.RESULTSThe results reveal that the age of citrus trees plays a significant role in psyllid mortality. Notably, four‐year‐old plants exhibited higher psyllid mortality (31.50%) compared to thirteen‐year‐old trees (9.10% and 0.09%, respectively). Our findings also revealed that psyllids from both 4 and 13‐year‐old citrus trees carried Candidatus Carsonella ruddii species and Wolbachia, the primary and secondary endosymbionts, respectively. Surprisingly, infection rates of these endosymbionts remained consistent across different age groups, as confirmed by qPCR analysis. Furthermore, our study highlights the significance of tree height as a proxy for tree age in influencing Huanglongbing occurrence. Specifically, 4‐year‐old trees subjected to the US‐SMART mechanical sprayer for citrus psyllid control demonstrated effective disease management compared to 13‐year‐old trees treated with handheld gun sprayers. Additionally, the investigation explored the impact of tree height on HLB distribution. In four‐year‐old trees, no significant correlation between HLB disease and tree height was observed, potentially due to effective spray coverage. However, in thirteen‐year‐old trees, a negative correlation between tree height and HLB disease was evident.CONCLUSIONThis research provides valuable insights into the complex interaction between citrus tree age, psyllid endosymbionts responses, and HLB distribution. These results emphasize effective HLB management strategies, especially in orchards with diverse tree age populations, ultimately contributing to the long‐term sustainability of citrus cultivation.This article is protected by copyright. All rights reserved.

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Interactions between nutrient and Huanglongbing pathogen in citrus: An overview and implications

Cited by 17 publications

References 100 publications

Bioprospecting Microbiome for Soil and Plant Health Management Amidst Huanglongbing Threat in Citrus: A Review

Bioprospecting Microbiome for Soil and Plant Health Management Amidst Huanglongbing Threat in Citrus: A Review

An Overview of the Mechanisms Against “Candidatus Liberibacter asiaticus”: Virulence Targets, Citrus Defenses, and Microbiome

Effect of tree height and spraying methods on Diaphorina citri kuwayama endosymbionts in the context of Huanglongbing disease management in citrus orchards

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