Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)

The Asian citrus psyllid<i>, Diaphorina citri</i> Kuwayama is devastating the citrus industry worldwide. It transmits ‘<i>Candidatus</i> Liberibacter asiaticus’, the pathogen of Huanglongbing in citrus. RNA interference is an excellent tool for functional genomics and for scr...

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Main Authors: Yulica Santos-Ortega, Nabil Killiny
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Insects
Subjects:
Online Access:https://www.mdpi.com/2075-4450/12/10/931
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author Yulica Santos-Ortega
Nabil Killiny
author_facet Yulica Santos-Ortega
Nabil Killiny
author_sort Yulica Santos-Ortega
collection DOAJ
description The Asian citrus psyllid<i>, Diaphorina citri</i> Kuwayama is devastating the citrus industry worldwide. It transmits ‘<i>Candidatus</i> Liberibacter asiaticus’, the pathogen of Huanglongbing in citrus. RNA interference is an excellent tool for functional genomics and for screening target genes for pest control. Herein, we silenced the aquaporin (AQP) gene (<i>DcAQP</i>) homologue in <i>D. citri</i> to study its functionality and whether it could be a good target for a control strategy. AQP is an integral membrane channel protein that aids in the rapid flux of water and other small solutes that move across the lipid membrane. In Hemiptera, it is well established that AQP plays important roles in adjusting to physiological challenges including (1) regulating osmotic stress between the gut lumen and hemolymph after imbibing large quantities of a low nitrogen, sugar-rich liquid diet; (2) avoiding or preventing dehydration and desiccation; and (3) surviving at elevated temperatures. The dsRNA-<i>DcAQP</i> was applied twice to nymphs of the 4th and 5th instars through a soaking technique. Silencing AQP caused a significant increase in nymph mortality. Emerged adults showed malformations and a shorter lifespan. Silencing <i>DcAQP</i> provoked alterations in some metabolites and increased the uric acid content in emerged adults. <i>DcAQP</i> could be a useful target to control <i>D. citri</i>.
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spelling doaj.art-53481977990b453691052f4ca2fa30672023-11-22T18:39:51ZengMDPI AGInsects2075-44502021-10-01121093110.3390/insects12100931Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)Yulica Santos-Ortega0Nabil Killiny1Department of Plant Pathology, Citrus Research and Education Center, IFAS, University of Florida, 700 Experiment Station Road, Lake Alfred, FL 33850, USADepartment of Plant Pathology, Citrus Research and Education Center, IFAS, University of Florida, 700 Experiment Station Road, Lake Alfred, FL 33850, USAThe Asian citrus psyllid<i>, Diaphorina citri</i> Kuwayama is devastating the citrus industry worldwide. It transmits ‘<i>Candidatus</i> Liberibacter asiaticus’, the pathogen of Huanglongbing in citrus. RNA interference is an excellent tool for functional genomics and for screening target genes for pest control. Herein, we silenced the aquaporin (AQP) gene (<i>DcAQP</i>) homologue in <i>D. citri</i> to study its functionality and whether it could be a good target for a control strategy. AQP is an integral membrane channel protein that aids in the rapid flux of water and other small solutes that move across the lipid membrane. In Hemiptera, it is well established that AQP plays important roles in adjusting to physiological challenges including (1) regulating osmotic stress between the gut lumen and hemolymph after imbibing large quantities of a low nitrogen, sugar-rich liquid diet; (2) avoiding or preventing dehydration and desiccation; and (3) surviving at elevated temperatures. The dsRNA-<i>DcAQP</i> was applied twice to nymphs of the 4th and 5th instars through a soaking technique. Silencing AQP caused a significant increase in nymph mortality. Emerged adults showed malformations and a shorter lifespan. Silencing <i>DcAQP</i> provoked alterations in some metabolites and increased the uric acid content in emerged adults. <i>DcAQP</i> could be a useful target to control <i>D. citri</i>.https://www.mdpi.com/2075-4450/12/10/931Asian citrus psyllid<i>Diaphorina citri</i>RNA interferencegene silencingaquaporinuric acid
spellingShingle Yulica Santos-Ortega
Nabil Killiny
Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
Insects
Asian citrus psyllid
<i>Diaphorina citri</i>
RNA interference
gene silencing
aquaporin
uric acid
title Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
title_full Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
title_fullStr Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
title_full_unstemmed Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
title_short Silencing of Aquaporin Homologue Accumulates Uric Acid and Decreases the Lifespan of the Asian Citrus Psyllid, <i>Diaphorina citri</i> (Hemiptera: Liviidae)
title_sort silencing of aquaporin homologue accumulates uric acid and decreases the lifespan of the asian citrus psyllid i diaphorina citri i hemiptera liviidae
topic Asian citrus psyllid
<i>Diaphorina citri</i>
RNA interference
gene silencing
aquaporin
uric acid
url https://www.mdpi.com/2075-4450/12/10/931
work_keys_str_mv AT yulicasantosortega silencingofaquaporinhomologueaccumulatesuricacidanddecreasesthelifespanoftheasiancitruspsyllididiaphorinacitriihemipteraliviidae
AT nabilkilliny silencingofaquaporinhomologueaccumulatesuricacidanddecreasesthelifespanoftheasiancitruspsyllididiaphorinacitriihemipteraliviidae