{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T15:12:37Z","timestamp":1787497957398,"version":"build-2736575974"},"update-to":[{"DOI":"10.1371\/journal.pgen.1011744","type":"new_version","label":"New version","source":"publisher","updated":{"date-parts":[[2025,6,13]],"date-time":"2025-06-13T00:00:00Z","timestamp":1749772800000}}],"reference-count":54,"publisher":"Public Library of Science (PLoS)","issue":"6","license":[{"start":{"date-parts":[[2025,6,3]],"date-time":"2025-06-03T00:00:00Z","timestamp":1748908800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32130090"],"award-info":[{"award-number":["32130090"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["32372541"],"award-info":[{"award-number":["32372541"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.plosgenetics.org"],"crossmark-restriction":false},"short-container-title":["PLoS Genet"],"abstract":"<jats:p>\n                    Myo-inositol, a sugar alcohol produced by most plants, serves as a nutrient and feeding stimulant for many phytophagous insects. Inositol-sensitive taste sensilla have been characterized in many Lepidoptera larvae, but their molecular bases remain unclear. In this study, we determined the gustatory receptors (GRs) for myo-inositol in larva of\n                    <jats:italic>Helicoverpa armigera<\/jats:italic>\n                    , a worldwide crop pest. First, electrophysiological analyses revealed that medial sensilla styloconica strongly responded to myo-inositol and ribose, with weaker responses to xylose, and one GRN inside sensillum may mediate the response to these three chemicals. Based on phylogenetic analysis of sugar GRs of Lepidoptera insects and previous results on\n                    <jats:italic>Bombyx mori<\/jats:italic>\n                    , we then selected two candidate GRs, HarmGR13 and HarmGR11. Using CRISPR-Cas9, we generated knockout mutants for the\u00a0two GR\u00a0genes. Knocking out\n                    <jats:italic>HarmGR13<\/jats:italic>\n                    abolished the responses of the sensilla to myo-inositol, ribose, and xylose, while knocking out\n                    <jats:italic>HarmGR11<\/jats:italic>\n                    showed no changes. Behavioral assays confirmed that larvae of\n                    <jats:italic>HarmGR13<\/jats:italic>\n                    homozygous mutant lost the feeding preference to myo-inositol which the wild-type larvae had. Further functional analysis with\n                    <jats:italic>Xenopus<\/jats:italic>\n                    oocytes expressing system and two-electrode voltage-clamping demonstrated that myo-inositol and ribose specifically induced concentration-dependent currents in HarmGR13-expressing oocytes. Structural predictions and molecular docking of HarmGR13 revealed three amino acid residues might be\u00a0involved in ligand binding. Mutation of these residues resulted in loss of oocyte responses to myo-inositol and ribose. We reveal that HarmGR13 is a receptor that mediates the activity of the cells sensitive to inositol and ribose in larvae, providing new molecular targets for the strategy of regulating the feeding behavior of pests by modifying taste.\n                  <\/jats:p>","DOI":"10.1371\/journal.pgen.1011744","type":"journal-article","created":{"date-parts":[[2025,6,3]],"date-time":"2025-06-03T13:49:29Z","timestamp":1748958569000},"page":"e1011744","update-policy":"https:\/\/doi.org\/10.1371\/journal.pgen.corrections_policy","source":"Crossref","is-referenced-by-count":3,"title":["HarmGR13 mediates myo-inositol taste perception in Helicoverpa armigera larvae"],"prefix":"10.1371","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0009-0005-2387-5373","authenticated-orcid":true,"given":"Yu-Sheng","family":"Tan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9333-3178","authenticated-orcid":true,"given":"Bao-Tong","family":"Mo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5956-3252","authenticated-orcid":true,"given":"Guo-Cheng","family":"Li","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-5901-7126","authenticated-orcid":true,"given":"Yu-Ruo","family":"Guo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3400-0044","authenticated-orcid":true,"given":"Jian-Zhen","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0418-8621","authenticated-orcid":true,"given":"Chen-Zhu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2025,6,3]]},"reference":[{"issue":"1","key":"pgen.1011744.ref001","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1146\/annurev.pp.34.060183.001033","article-title":"Myo-Inositol: 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