NAC Transcription Factors in Drought and Salinity Tolerance

Hoang, Xuan Lan Thi; Nguyen, Yen-Nhi; Thảo, Nguyễn Phương; Tran, Lam‐Son Phan

doi:10.1007/978-3-030-40277-8_14

Cited by 6 publications

(4 citation statements)

References 73 publications

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“…The NAC (NAM [no apical meristem], ATAF1, 2, and CUC2 [cup‐shaped cotyledon]) TF family is a plant‐specific TF family, members of which are known for their diverse roles in several developmental processes and responses to biotic and abiotic stresses (Hoang et al, 2020; Puranik et al, 2012). NAC family TFs are major players of salinity tolerance in plants (Hong et al, 2016).…”

Section: Rice Tfs Crosstalks With Cell Signaling and Gene Regulation ...mentioning

confidence: 99%

Seedling‐stage salinity tolerance in rice: Decoding the role of transcription factors

Tiwari

Nutan

Deshmukh

et al. 2022

Physiologia Plantarum

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Rice is an important staple food crop that feeds over half of the human population, particularly in developing countries. Increasing salinity is a major challenge for continuing rice production. Though rice is affected by salinity at all the developmental stages, it is most sensitive at the early seedling stage. The yield thus depends on how many seedlings can withstand saline water at the stage of transplantation, especially in coastal farms. The rapid development of “omics” approaches has assisted researchers in identifying biological molecules that are responsive to salt stress. Several salinity‐responsive quantitative trait loci (QTL) contributing to salinity tolerance have been identified and validated, making it essential to narrow down the search for the key genes within QTLs. Owing to the impressive progress of molecular tools, it is now clear that the response of plants toward salinity is highly complex, involving multiple genes, with a specific role assigned to the repertoire of transcription factors (TF). Targeting the TFs for improving salinity tolerance can have an inbuilt advantage of influencing multiple downstream genes, which in turn can contribute toward tolerance to multiple stresses. This is the first comparative study for TF‐driven salinity tolerance in contrasting rice cultivars at the seedling stage that shows how tolerant genotypes behave differently than sensitive ones in terms of stress tolerance. Understanding the complexity of salt‐responsive TF networks at the seedling stage will be helpful to alleviate crop resilience and prevent crop damage at an early growth stage in rice.

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Section: Rice Tfs Crosstalks With Cell Signaling and Gene Regulation ...mentioning

confidence: 99%

Seedling‐stage salinity tolerance in rice: Decoding the role of transcription factors

Tiwari

Nutan

Deshmukh

et al. 2022

Physiologia Plantarum

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“…NAC family members have been reported as essential in the regulation of stress tolerance ( Nuruzzaman, Sharoni & Kikuchi, 2013 ; Hoang et al, 2020 ). The Arabidopsis NAC-related genes ANAC019 , ANAC055 and ANAC072 were identified as stress regulators since they were induced and responded with enhanced tolerance under multiple abiotic stresses and exogenous hormones, such as drought, high salinity, ABA and MeJA ( Jensen et al., 2010 ; Li et al, 2012 ).…”

Section: Discussionmentioning

confidence: 99%

Overexpression of theTectona grandis TgNAC01regulates growth, leaf senescence and confer salt stress tolerance in transgenic tobacco plants

Hurtado

Oliveira

Gómez-Espinoza

et al. 2022

PeerJ

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NAC transcription factors play critical roles in xylem secondary development and in regulation of stress response in plants. NAC proteins related to secondary cell wall development were recently identified and characterized in Tectona grandis (teak), one of the hardwood trees of highest economic importance in the world. In this work, we characterized the novel TgNAC01 gene, which is involved in signaling pathways that mediate teak response to stress. Abscisic acid (ABA) increases TgNAC01 expression in teak plants. Therefore, this gene may have a role in signaling events that mediate ABA-dependent osmotic stress responsive in this plant species. Stable expression in tobacco plants showed that the TgNAC01 protein is localized in the cell nucleus. Overexpression of TgNAC01 in two out three independent transgenic tobacco lines resulted in increased growth, leaf senescence and salt tolerance compared to wild type (WT) plants. Moreover, the stress tolerance of transgenic plants was affected by levels of TgNAC01 gene expression. Water potential, gas exchange and chlorophyll fluorescence were used to determine salt stress tolerance. The 35S:TgNAC01-6 line under 300 mM NaCl stress responded with a significant increase in photosynthesis rate, stomatal conductance, transpiration and carboxylation efficiency, but lower water potential compared to WT plants. The data indicate that the TgNAC01 transcription factor acts as a transcriptional activator of the ABA-mediated regulation and induces leaf senescence.

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“…C2H2-ZF TFs participate in several processes during plant growth and development as well as in response to a wide spectrum of abiotic and biotic stressess 72 . NAC is a large family of TFs that is also involved in great variety of biological processes which regulate plant growth and development, as well as in abiotic stress tolerance 73 . DREB, a representative of the subfamily of AP2/ERF TFs that plays a significant role in response to drought, salinity and cold stress, also showed this trend 74 .…”

Section: Discussionmentioning

confidence: 99%

Rootstock effects on scion gene expression in maritime pine

López-Hinojosa,

de María,

Guevara

et al. 2021

Sci Rep

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Pines are the dominant conifers in Mediterranean forests. As long-lived sessile organisms that seasonally have to cope with drought periods, they have developed a variety of adaptive responses. However, during last decades, highly intense and long-lasting drought events could have contributed to decay and mortality of the most susceptible trees. Among conifer species, Pinus pinaster Ait. shows remarkable ability to adapt to different environments. Previous molecular analysis of a full-sib family designed to study drought response led us to find active transcriptional activity of stress-responding genes even without water deprivation in tolerant genotypes. To improve our knowledge about communication between above- and below-ground organs of maritime pine, we have analyzed four graft-type constructions using two siblings as rootstocks and their progenitors, Gal 1056 and Oria 6, as scions. Transcriptomic profiles of needles from both scions were modified by the rootstock they were grafted on. However, the most significant differential gene expression was observed in drought-sensitive Gal 1056, while in drought-tolerant Oria 6, differential gene expression was very much lower. Furthermore, both scions grafted onto drought-tolerant rootstocks showed activation of genes involved in tolerance to abiotic stress, and is most remarkable in Oria 6 grafts where higher accumulation of transcripts involved in phytohormone action, transcriptional regulation, photosynthesis and signaling has been found. Additionally, processes, such as those related to secondary metabolism, were mainly associated with the scion genotype. This study provides pioneering information about rootstock effects on scion gene expression in conifers.

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NAC Transcription Factors in Drought and Salinity Tolerance

Cited by 6 publications

References 73 publications

Seedling‐stage salinity tolerance in rice: Decoding the role of transcription factors

Seedling‐stage salinity tolerance in rice: Decoding the role of transcription factors

Overexpression of theTectona grandis TgNAC01regulates growth, leaf senescence and confer salt stress tolerance in transgenic tobacco plants

Rootstock effects on scion gene expression in maritime pine

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