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dc.contributor.authorVASCONCELOS, M. J. V. deeng
dc.contributor.authorJAIN, A.eng
dc.contributor.authorFIGUEIREDO, J. E. F.eng
dc.contributor.authorOLIVEIRA, M. F. deeng
dc.contributor.authorTRINDADE, R. dos S.eng
dc.contributor.authorYUGANDHAR, P.eng
dc.contributor.authorRAGHOTHAMA, K. G.eng
dc.date.accessioned2024-04-17T17:02:43Z-
dc.date.available2024-04-17T17:02:43Z-
dc.date.created2024-04-17
dc.date.issued2024
dc.identifier.citationGenetics and Molecular Research, v. 23, n. 1, gmr19213, 2024.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1163718-
dc.descriptionPhosphorus (P) is a vital macronutrient for plant growth and development. Thus, P deficiency represents a bottleneck in the production of maize (Zea mays, L.). Therefore, there is a need for a prompt identification of new P-use efficient lineages and hybrids. The Canadian landrace Gaspé Flint (GF) race of maize was used to identify molecular and morphological traits due to its short life cycle and ease of growing in a hydroponic system under controlled conditions. First, GF was grown in a hydroponic system containing different Pi regimes for 15 d, and harvested tissues were assayed for various morphophysiological and molecular traits. Second, GF was grown in hydroponics under P+ (250 µM) and P-(10 µM) conditions until seed maturity. Pi deficiency led to a lack of synchrony between male and female reproductive organs, reducing fertilization, cob development, and productivity. Although typical Pi deficiency-mediated morphophysiological responses, such as increased root biomass relative to the shoot, accumulation of anthocyanins in the roots and leaves, and elevated acid phosphatase activity in the shoot could be observed in any maize variety, the use of GF abbreviated the analysis of these traits from 120 days in commercial varieties to 40 days. Furthermore, Pi transporters ZmPT5 and ZmPT6 were induced in Pi-deprived roots and leaves and suppressed upon Pi replenishment, suggesting a transcriptional regulation. The study validated the efficacy of GF for accelerating studies on agronomic traits and plant response to stress, from seeds to seeds, in the grass family. The Gaspé Flint corn was confirmed as a plant model to study the effect of phosphorus on the growth and development of maize in a hydroponic system.
dc.language.isoeng
dc.rightsopenAccess
dc.titleGaspé Flint corn as a seed-to-seed model to study the effect of phosphorus on maize growth and development.
dc.typeArtigo de periódico
dc.subject.thesagroZea Mays
dc.subject.thesagroCaracterísticas Agronômicas
dc.subject.thesagroEndogamia
dc.subject.thesagroLinhagem
dc.subject.thesagroMilho
dc.subject.nalthesaurusInbred lines
dc.subject.nalthesaurusAgronomic traits
riaa.ainfo.id1163718
riaa.ainfo.lastupdate2024-04-17
dc.identifier.doihttp://dx.doi.org/10.4238/gmr19213
dc.contributor.institutionMARIA JOSE VILACA DE VASCONCELOS, CNPMSeng
dc.contributor.institutionAMITY UNIVERSITYeng
dc.contributor.institutionJOSE EDSON FONTES FIGUEIREDO, CNPMSeng
dc.contributor.institutionMAURILIO FERNANDES DE OLIVEIRA, CNPMSeng
dc.contributor.institutionROBERTO DOS SANTOS TRINDADE, CNPMSeng
dc.contributor.institutionINDIAN INSTITUTE OF RICE RESEARCHeng
dc.contributor.institutionPURDUE UNIVERSITY.eng
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