LATERAL BRANCHING OXIDOREDUCTASE specificity for strigolactone branching inhibition in barley

dc.contributor.authorInoue, M.
dc.contributor.authorSitumorang, A.
dc.contributor.authorKelly, J.H.
dc.contributor.authorChen, W.
dc.contributor.authorZhou, H.
dc.contributor.authorFerrario, C.C.
dc.contributor.authorGregis, V.
dc.contributor.authorVajani, A.
dc.contributor.authorShaaf, S.
dc.contributor.authorBiswas, A.
dc.contributor.authorAlqusumi, R.
dc.contributor.authorWaters, M.T.
dc.contributor.authorTucker, M.R.
dc.contributor.authorZhang, D.
dc.contributor.authorWatts-Williams, S.J.
dc.contributor.authorJaniak, A.
dc.contributor.authorMarzec, M.
dc.contributor.authorChmielewska, B.
dc.contributor.authorRossini, L.
dc.contributor.authorYoneyama, K.
dc.contributor.authoret al.
dc.contributor.editorByrne, M.
dc.date.issued2025
dc.descriptionAdvance Access Publication 26 June 2025. OnlinePubl
dc.description.abstractStrigolactone (SL) mutants display a range phenotypes, such as increased branching, reduced stature and a loss of SLs exuded from roots into soil. SL biosynthesis is complex and divergent between plant species. Recently, mutants defective in specific SL biosynthesis genes have shown a loss of exuded SLs, but no obvious change in branching (tillering). This means that functional specification may exist between certain SL sub-types. It has been suggested that the LATERAL BRANCHING OXIDOREDUCTASE (LBO) enzyme acts in a sub-pathway of SLs that is specific for branching. Here we report that barley plants mutants in hvlbo have increased tillering, but normal production of SLs detected in roots and root exudates. This finding supports the idea that SLs have functional or tissue-specific differences and that the LBO pathway has specificity for bud outgrowth rather than exudates.
dc.description.statementofresponsibilityMaiko Inoue, Apriadi Situmorang, Jack H. Kelly, Weiwei Chen, Hui Zhu, Carlotta C. Ferrario, Veronica Gregis, Alessandro Vajani, Salar Shaaf, Abhisek Biswas, Rana Alqusumi, Mark T. Waters, Matthew R. Tucker, Dabing Zhang, Stephanie J. Watts-Williams, Agnieszka Janiak, Marek Marzec, Beata Chmielewska, Laura Rossini, Kaori Yoneyama, and Philip B. Brewer
dc.identifier.citationJournal of Experimental Botany, 2025; 76(18)
dc.identifier.doi10.1093/jxb/eraf285
dc.identifier.issn0022-0957
dc.identifier.issn1460-2431
dc.identifier.orcidSitumorang, A. [0000-0003-1879-3355]
dc.identifier.orcidKelly, J.H. [0000-0002-9472-678X]
dc.identifier.orcidChen, W. [0000-0001-7681-3962] [0000-0002-0727-4341]
dc.identifier.orcidTucker, M.R. [0000-0003-4661-6700]
dc.identifier.orcidZhang, D. [0000-0003-3181-9812]
dc.identifier.orcidWatts-Williams, S.J. [0000-0003-3467-0662]
dc.identifier.orcidBrewer, P.B. [0000-0003-4871-9260]
dc.identifier.urihttps://hdl.handle.net/2440/147766
dc.language.isoen
dc.publisherOxford University Press
dc.relation.granthttp://purl.org/au-research/grants/arc/FT180100081
dc.relation.granthttp://purl.org/au-research/grants/arc/DP240102441
dc.relation.granthttp://purl.org/au-research/grants/arc/CE230100015
dc.rights© The Author(s) 2025. Published by Oxford University Press on behalf of the Society for Experimental Biology. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/bync/ 4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.
dc.source.urihttps://doi.org/10.1093/jxb/eraf285
dc.subjectbarley
dc.subjectbiosynthesis
dc.subjectbranching
dc.subjectcrop
dc.subjectroot exudate
dc.subjectStrigolactone
dc.subjecttillering
dc.subjectyield
dc.titleLATERAL BRANCHING OXIDOREDUCTASE specificity for strigolactone branching inhibition in barley
dc.typeJournal article
pubs.publication-statusPublished online

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