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dc.contributor.authorBASTIANI, M. O.
dc.contributor.authorGUIDORIZI, K. A.
dc.contributor.authorBENEDETTI, L.
dc.contributor.authorROCKENBACH, D.
dc.contributor.authorCARATTI, F. C.
dc.contributor.authorZABALA-PARDO, D. M.
dc.contributor.authorAVILA, L. A.
dc.contributor.authorSOUZA, G. M.
dc.contributor.authorLAMEGO, F. P.
dc.date.accessioned2024-10-14T18:53:53Z-
dc.date.available2024-10-14T18:53:53Z-
dc.date.created2024-10-14
dc.date.issued2024
dc.identifier.citationWeed Research, v. 64, p. 19–30, 2024.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1168052-
dc.descriptionAbstract: Eragrostis plana Nees is a perennial grass weed, native to South Africa and an invasive species of dry rangelands across Asia, Australia, and South America. We hypothesise that E. plana has evolved mechanisms of acclimation to drought conditions to a greater extent than bahiagrass (Paspalum notatum), an important native grass forage species of livestock rangelands of Brazil, leading to a competitive advantage. We measured morphological, physiological, and biochemical response traits in E. plana and P. notatum to water deficit and competition. Levels of drought tolerance in the two species were greatest at the tillering growth stage, driven by low levels of leaf relative water content in E. plana and early stomatal regulation to avoid water loss in P. notatum. The mechanisms used to dissipate energy excess under drought are associated with an efficient antioxidant system and the biosynthesis of compatible osmolytes (proline). Despite reductions in fitness, both species survived a series of drought cycles, where E. plana showed a competitive advantage over P. notatum. These results help to explain the invasion success of E. plana in rangelands and demonstrate its potential threat to native biodiversity, particularly under drought conditions.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectRegulação estomática
dc.subjectEstresse hídrico
dc.subjectCompetitiveness
dc.subjectStomatal regulation
dc.titleDrought tolerance in tough lovegrass (Eragrostis plana): understanding mechanisms and competitive ability.
dc.typeArtigo de periódico
dc.subject.thesagroEragrostis Plana
dc.subject.thesagroCompetição de Variedade
dc.subject.thesagroPastagem
dc.subject.thesagroProlina
dc.subject.thesagroRecurso Hídrico
dc.subject.nalthesaurusPastures
dc.subject.nalthesaurusProline
dc.subject.nalthesaurusWater stress
riaa.ainfo.id1168052
riaa.ainfo.lastupdate2024-10-14
dc.identifier.doihttps://doi.org/10.1111/wre.12568
dc.contributor.institutionMARLON OURIQUES BASTIANI, UNIVERSIDADE FEDERAL DE PELOTAS; KEZIA APARECIDA GUIDORIZI, UNIVERSIDADE FEDERAL DE PELOTAS; LARIZA BENEDETTI, UNIVERSIDADE FEDERAL DE PELOTAS; DALVANE ROCKENBACH, UNIVERSIDADE FEDERAL DE PELOTAS; FERNANDA CASSIANE CARATTI, UNIVERSIDADE FEDERAL DE PELOTAS; DIANA MILENA ZABALA-PARDO, UNIVERSIDADE FEDERAL DE PELOTAS; LUIS ANTONIO AVILA, UNIVERSIDADE FEDERAL DE PELOTAS; GUSTAVO MAIA SOUZA, UNIVERSIDADE FEDERAL DE PELOTAS; FABIANE PINTO LAMEGO, CPACT.
Aparece en las colecciones:Artigo em periódico indexado (CPACT)

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