{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T10:10:50Z","timestamp":1790763050515,"version":"4.1.0"},"reference-count":76,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2020,12,7]],"date-time":"2020-12-07T00:00:00Z","timestamp":1607299200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002261","name":"Russian Foundation for Basic Research","doi-asserted-by":"publisher","award":["20-04-00305."],"award-info":[{"award-number":["20-04-00305."]}],"id":[{"id":"10.13039\/501100002261","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100002261","name":"Russian Foundation for Basic Research","doi-asserted-by":"publisher","award":["20-04-00305."],"award-info":[{"award-number":["20-04-00305."]}],"id":[{"id":"10.13039\/501100002261","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Plants"],"abstract":"<jats:p>Although changes in root architecture in response to the environment can optimize mineral and water nutrient uptake, mechanisms regulating these changes are not well-understood. We investigated whether P deprivation effects on root development are mediated by abscisic acid (ABA) and its interactions with other hormones. The ABA-deficient barley mutant Az34 and its wild-type (WT) were grown in P-deprived and P-replete conditions, and hormones were measured in whole roots and root tips. Although P deprivation decreased growth in shoot mass similarly in both genotypes, only the WT increased primary root length and number of lateral roots. The effect was accompanied by ABA accumulation in root tips, a response not seen in Az34. Increased ABA in P-deprived WT was accompanied by decreased concentrations of cytokinin, an inhibitor of root extension. Furthermore, P-deficiency in the WT increased auxin concentration in whole root systems in association with increased root branching. In the ABA-deficient mutant, P-starvation failed to stimulate root elongation or promote branching, and there was no decline in cytokinin and no increase in auxin. The results demonstrate ABA\u2019s ability to mediate in root growth responses to P starvation in barley, an effect linked to its effects on cytokinin and auxin concentrations.<\/jats:p>","DOI":"10.3390\/plants9121722","type":"journal-article","created":{"date-parts":[[2020,12,10]],"date-time":"2020-12-10T20:18:22Z","timestamp":1607631502000},"page":"1722","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":25,"title":["Effects of Phosphate Shortage on Root Growth and Hormone Content of Barley Depend on Capacity of the Roots to Accumulate ABA"],"prefix":"10.3390","volume":"9","author":[{"given":"Lidiya","family":"Vysotskaya","sequence":"first","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guzel","family":"Akhiyarova","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Arina","family":"Feoktistova","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3495-0501","authenticated-orcid":false,"given":"Zarina","family":"Akhtyamova","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alla","family":"Korobova","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Igor","family":"Ivanov","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2725-859X","authenticated-orcid":false,"given":"Ian","family":"Dodd","sequence":"additional","affiliation":[{"name":"The Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bulat","family":"Kuluev","sequence":"additional","affiliation":[{"name":"Institute of Biochemistry and Genetics of Ufa Federal Research Centre of Russian Academy of Sciences, Pr. Octyabrya, 71, 450054 Ufa, Russia"},{"name":"Department of Biology, Bashkir State University, Zaki-Validi St. 32, 450074 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guzel","family":"Kudoyarova","sequence":"additional","affiliation":[{"name":"Ufa Institute of Biology of Ufa Federal Research Centre of the Russian Academy of Sciences, Pr. Octyabrya, 69, 450054 Ufa, Russia"},{"name":"Department of Biology, Bashkir State University, Zaki-Validi St. 32, 450074 Ufa, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,12,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1041","DOI":"10.1104\/pp.111.175414","article-title":"Root phenes for enhanced soil exploration and phosphorus acquisition: Tools for future crops","volume":"56","author":"Lynch","year":"2011","journal-title":"Plant Physiol."},{"key":"ref_2","first-page":"307","article-title":"Roots: The acquisition of water and nutrients from the heterogeneous soil environment","volume":"71","author":"Hodge","year":"2010","journal-title":"Prog. 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