Aluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivar

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cg.creator.identifierPeter Wenzl: 0000-0003-4657-8468
cg.creator.identifierIdupulapati M. Rao: 0000-0002-8381-9358
cg.identifier.doihttps://doi.org/10.1081/pln-120006059en
cg.isijournalISI Journalen
cg.issn0190-4167en
cg.issue8en
cg.journalJournal of Plant Nutritionen
cg.reviewStatusPeer Reviewen
cg.subject.ciatTROPICAL FORAGESen
cg.subject.ilriFORAGESen
cg.volume25en
dc.contributor.authorWenzl, Peteren
dc.contributor.authorMayer, Jorge Edgarden
dc.contributor.authorRao, Idupulapati M.en
dc.date.accessioned2016-11-10T20:30:31Zen
dc.date.available2016-11-10T20:30:31Zen
dc.identifier.urihttps://hdl.handle.net/10568/77716
dc.titleAluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivaren
dcterms.abstractThe phosphorus (P) content of whole roots and root apices has been reported to increase under aluminum (Al) stress, particularly in Al-sensitive plant varieties. We investigated the impact of Al toxicity on the P content of root apices of two tropical forage cultivars of the Brachiaria genus, grown in Al-containing low-ionic-strength nutrient solutions. Exposure to Al did not affect apical P concentrations in Al-resistant B. decumbens cv. Basilisk. In contrast to previous results obtained with other plant species, however, it caused a 70% decline in the apical P content of Al-sensitive B. ruziziensis cv. Common, despite the simultaneously increasing P levels in older root portions. This effect was largely due to a reduced accumulation of organically bound P, because less than 7% of the P in root apices was in the inorganic form in either species or treatment. The P content of root apices might be a useful indicator for evaluating the resistance of Brachiaria cultivars to prolonged Al stress.en
dcterms.accessRightsOpen Access
dcterms.bibliographicCitationWenzl, Peter; Mayer, Jorge Edgard; Rao, Idupulapati Madhusudana. 2002. Aluminum stress inhibits accumulation of phosphorus in root apices of aluminum-sensitive but not aluminum-resistant brachiaria cultivar . Journal of Plant Nutrition (USA) 25:1821-1828.en
dcterms.extent1821-1828en
dcterms.issued2002-08-13
dcterms.languageen
dcterms.publisherInforma UK Limiteden
dcterms.subjectfeed cropsen
dcterms.subjectbrachiaria decumbensen
dcterms.subjectbracharia ruziziensisen
dcterms.subjectaluminiumen
dcterms.subjectstressen
dcterms.subjectphosphorusen
dcterms.subjectaluminioen
dcterms.subjectestrésen
dcterms.subjectfósforoen
dcterms.typeJournal Article

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