Exogenous naphthaleneacetic acid (NAA) mitigated the alkaline stress changes in the growth and physio-biochemical performance of maize (Zea mays L.) seedlings

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Autor(es): dc.contributorJiangsu University-
Autor(es): dc.contributorSuzhou University of Science and Technology-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorShanghai Jiao Tong University-
Autor(es): dc.contributorKing Saud University-
Autor(es): dc.contributorBeni-Suef University-
Autor(es): dc.creatorIqbal, Babar-
Autor(es): dc.creatorJalal, Arshad-
Autor(es): dc.creatorAhmad, Naveed-
Autor(es): dc.creatorOkla, Mohammad K.-
Autor(es): dc.creatorElgawad, Hamada Abd-
Autor(es): dc.creatorEl-Tayeb, Mohamed A.-
Autor(es): dc.creatorGaafar, Abdel-Rhman Z.-
Autor(es): dc.creatorLi, Guanlin-
Autor(es): dc.creatorDu, Daolin-
Data de aceite: dc.date.accessioned2025-08-21T19:44:41Z-
Data de disponibilização: dc.date.available2025-08-21T19:44:41Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11738-024-03759-0-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/297356-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/297356-
Descrição: dc.descriptionNaphthaleneacetic acid (NAA) is a synthetic plant hormone, considered to promote plant growth under optimal and stressful conditions. However, its role in regulating the response of crop species, including maize, to alkaline stress (AS) remains largely unknown. In this study, we investigated the effects of exogenous NAA application (160 mg/L) on growth, antioxidant potential, nitrogen assimilation, and ion regulation in maize seedlings subjected to different levels of alkaline stress (0, 30, 60, and 90 mM [1:1 ratio of Na2CO3 and NaHCO3]). We observed that increased alkaline stress) levels significantly increased the concentration of Na+, Cl−, H2O2, and malondialdehyde (MDA), but reduced K+ and Mg2+ ions compared to control (CK) maize seedlings. Furthermore, glycine betaine, proteins, proline, sugar, and antioxidant enzymes (superoxide dismutase, glutathione reductase, peroxidase, dehydroascorbate reductase, and catalase) were significantly increased, while NO3− and NH4+ metabolizing enzymes (nitrate reductase, glutamine synthetase, and glutamine oxoglutarate aminotransferase) were significantly reduced. AS induced a negative impact on maize seedlings, which was highly dependent on the concentration of exogenous NAA. Where NAA application reduced Na+, Cl−, H2O2, and MDA levels, but increased K+, enriched organic solutes, antioxidant enzyme potential, and N metabolism, and ameliorated stress damage under AS conditions. Conclusively, the NAA application mitigated the adverse effects of AS on maize seedlings. Consequently, it might be an effective strategy for improving morpho-physiological performance in alkalinity-prone areas. However, future molecular studies should examine whether NAA can positively alter maize nutrient composition and thus help resolve nutritional problems in developing countries suffering from alkaline soil.-
Descrição: dc.descriptionNational Natural Science Foundation of China-
Descrição: dc.descriptionSchool of Environment and Safety Engineering Jiangsu University-
Descrição: dc.descriptionJiangsu Collaborative Innovation Centre of Technology and Material of Water Treatment Suzhou University of Science and Technology-
Descrição: dc.descriptionSchool of Engineering Department of Plant Health Rural Engineering and Soils São Paulo State University UNESP-FEIS, São Paulo-
Descrição: dc.descriptionJoint Center for Single Cell Biology Shanghai Collaborative Innovation Center of Agri-Seeds School of Agriculture and Biology Shanghai Jiao Tong University-
Descrição: dc.descriptionBotany and Microbiology Department College of Science King Saud University, P.O. Box, 2455-
Descrição: dc.descriptionDepartment of Botany and Microbiology Faculty of Science Beni-Suef University-
Descrição: dc.descriptionJingjiang College Institute of Environment and Ecology School of Emergency Management School of Environment and Safety Engineering School of Agricultural Engineering Jiangsu University-
Descrição: dc.descriptionSchool of Engineering Department of Plant Health Rural Engineering and Soils São Paulo State University UNESP-FEIS, São Paulo-
Descrição: dc.descriptionNational Natural Science Foundation of China: 32271587-
Descrição: dc.descriptionNational Natural Science Foundation of China: 32350410400-
Idioma: dc.languageen-
Relação: dc.relationActa Physiologiae Plantarum-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAbiotic stress-
Palavras-chave: dc.subjectAntioxidant enzymes-
Palavras-chave: dc.subjectClimate change-
Palavras-chave: dc.subjectGrowth regulators-
Palavras-chave: dc.subjectSalinity-
Título: dc.titleExogenous naphthaleneacetic acid (NAA) mitigated the alkaline stress changes in the growth and physio-biochemical performance of maize (Zea mays L.) seedlings-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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