{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T14:48:24Z","timestamp":1791902904094,"version":"4.3.4"},"reference-count":80,"publisher":"Oxford University Press (OUP)","license":[{"start":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T00:00:00Z","timestamp":1789084800000},"content-version":"am","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U22A20457"],"award-info":[{"award-number":["U22A20457"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Shandong Agricultural Seeds Engineering Project","award":["2023LZGC009"],"award-info":[{"award-number":["2023LZGC009"]}]},{"name":"Qingdao Postdoc Project","award":["QDBSH20250202080"],"award-info":[{"award-number":["QDBSH20250202080"]}]},{"DOI":"10.13039\/501100000923","name":"Australian Research Council","doi-asserted-by":"publisher","award":["IC240100041"],"award-info":[{"award-number":["IC240100041"]}],"id":[{"id":"10.13039\/501100000923","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Soil salinization is one of the most pressing abiotic stresses currently facing global agriculture, posing a severe threat to crop yields and global food security. As soil salinity is heterogeneous, plant roots actively adjust their direction of growth to avoid high-salinity regions, a phenomenon known as halotropism. The core molecular mechanism underlying this process involves the asymmetric redistribution of auxin. This paper reviews current knowledge of the physiological and molecular mechanisms regulating root halotropism, compares the divergent halotropic strategies of different plant types, and discusses the prospects of applying this knowledge to the genetic improvement of crop salt tolerance. Among others, key topics include: polar auxin transport and the role of phospholipase D (PLD) in regulating endocytosis of PIN2 proteins; abscisic acid (ABA)-mediated reorganization of microtubules and anisotropic cell wall expansion; and the role of ROS and Ca2+ signaling in regulating halotropism. The phenomenon known as positive root halotropism observed in halophytes and its functional role are also discussed in the context of improving crop salinity stress tolerance and addressing the issue of global soil salinization under current climate scenarios.<\/jats:p>","DOI":"10.1093\/jxb\/erag454","type":"journal-article","created":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T11:51:34Z","timestamp":1789041094000},"source":"Crossref","is-referenced-by-count":0,"title":["Plant halotropism: mechanisms, signaling networks, and adaptive significance"],"prefix":"10.1093","author":[{"given":"Mei","family":"Qu","sequence":"first","affiliation":[{"name":"College of Agronomy, Qingdao Agricultural University , Qingdao 266109 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Weixiang","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Agronomy, Qingdao Agricultural University , Qingdao 266109 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinlan","family":"Ni","sequence":"additional","affiliation":[{"name":"College of Agronomy, Qingdao Agricultural University , Qingdao 266109 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dengan","family":"Xu","sequence":"additional","affiliation":[{"name":"College of Agronomy, Qingdao Agricultural University , Qingdao 266109 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2345-8981","authenticated-orcid":false,"given":"Sergey","family":"Shabala","sequence":"additional","affiliation":[{"name":"School of Biological Science, University of Western Australia , Crawley WA 6009 ,","place":["Australia"]},{"name":"International Research Centre for Environmental Membrane Biology, Foshan University , Foshan 528000 ,","place":["China"]},{"name":"Colledge of Plant Science and Technology, Huazhong Agricultural University , Wuhan 430070 ,","place":["China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wujun","family":"Ma","sequence":"additional","affiliation":[{"name":"College of Agronomy, Qingdao Agricultural University , Qingdao 266109 ,","place":["China"]},{"name":"School of Agriculture, Murdoch University , Perth WA 4350 ,","place":["Australia"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,9,11]]},"reference":[{"key":"2026101310220418400_erag454-B1","doi-asserted-by":"crossref","first-page":"249","DOI":"10.1038\/ncb1369","article-title":"Intracellular trafficking and proteolysis of the Arabidopsis auxin-efflux facilitator PIN2 are involved in root gravitropism","volume":"8","author":"Abas","year":"2006","journal-title":"Nature Cell Biology"},{"key":"2026101310220418400_erag454-B2","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1111\/nph.20195","article-title":"Antioxidants by nature: an ancient 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