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dc.contributor.author
Figueroa, Nicolás Raúl
dc.contributor.author
Lodeyro, Anabella Fernanda
dc.contributor.author
Carrillo, Nestor Jose
dc.contributor.author
Gomez, Rodrigo Lionel
dc.date.available
2023-01-25T12:44:33Z
dc.date.issued
2021-06
dc.identifier.citation
Figueroa, Nicolás Raúl; Lodeyro, Anabella Fernanda; Carrillo, Nestor Jose; Gomez, Rodrigo Lionel; Meta-analysis reveals key features of the improved drought tolerance of plants overexpressing NAC transcription factors; Pergamon-Elsevier Science Ltd; Environmental and Experimental Botany; 186; 6-2021; 1-44
dc.identifier.issn
0098-8472
dc.identifier.uri
http://hdl.handle.net/11336/185512
dc.description.abstract
Overexpression of various transcriptional regulators belonging to the NAC (NAM/ATAF/CUC) family was shown to enhance plant tolerance to drought, a most common environmental challenge. However, inconsistencies among the type of outcomes evaluated and their magnitudes complicate the comparison of results across studies and the interpretation of the underlying mechanisms by which NAC gene products increase drought tolerance. We report herein a meta-analysis of ninety-six peer-reviewed publications examining the effects of NAC overexpression on drought tolerance. We found that NAC expression impacted on the magnitude of 18 out of the 19 most frequently reported plant characteristics, increasing positive responses by at least 40 %, while decreasing negative ones by at least 23 %. Survival, water retention and antioxidant metabolism topped the list of measured parameters, whereas strongest NAC effects were determined on survival, biomass accumulation, protection of photosynthesis and proline synthesis. We also explored how several experimental moderators influenced the extent of such responses. They showed negative impacts on plant development under normal growth conditions when using Arabidopsis as receiver plant and the strong promoter CaMV35S to drive NAC expression, although improvements in drought tolerance were significantly higher with CaMV35S compared to other promoters. Benefits from NAC overexpression were more evident in soil-grown plants and with water withholding as the source of stress. NAC-encoding genes from monocots performed slightly better than those obtained from dicots. Water retention and antioxidant metabolism were protected at early stages of water deficit, whereas differential preservation of photosynthesis, root development and survival was maximal after long treatments. Our findings could aid future research on the impact of NAC overexpression in plant tolerance to drought stress.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Pergamon-Elsevier Science Ltd
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
DROUGHT STRESS
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META-ANALYSIS
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NAC FAMILY
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OVEREXPRESSION
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STRESS-RELATED PARAMETERS
dc.subject.classification
Bioquímica y Biología Molecular
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Meta-analysis reveals key features of the improved drought tolerance of plants overexpressing NAC transcription factors
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-19T16:04:41Z
dc.journal.volume
186
dc.journal.pagination
1-44
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Figueroa, Nicolás Raúl. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Lodeyro, Anabella Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Carrillo, Nestor Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.description.fil
Fil: Gomez, Rodrigo Lionel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina
dc.journal.title
Environmental and Experimental Botany
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://linkinghub.elsevier.com/retrieve/pii/S0098847221000782
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.envexpbot.2021.104449
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