A novel NAP member GhNAP is involved in leaf senescence in<i>Gossypium hirsutum</i>

Fan, Kai; Bibi, Nizakat; Gan, Susheng; Feng, Liang; Yuan, Shuna; Ni, Mingkang; Wang, Ming; Shen, Hao; Wang, Xuede

doi:10.1093/jxb/erv240

Cited by 68 publications

(66 citation statements)

References 58 publications

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“…GhNAC12 and GhNAP are reported to promote senescence and yield improvement (Zhao et al, 2015;Fan et al, 2015). Our study points out to one of GhNACs, GhNAC18, which, unlike others previously reported, is downregulated during leaf senescence and could be involved in cotton stress responses.…”

Section: Characterization and Cloning Of Ghnac18contrasting

confidence: 37%

“…Biotic attacks such as infectious pathogens also complicate the sessile habit of plants. In this regard, plants adapt to these dynamic conditions by evoking responses at physiological, biochemical and molecular levels (Nakashima et al, 2011;Fan et al, 2015) including regulation of genes enhancing survivability (Nuruzzaman et al, 2013). The immune response in plants is triggered by pathogen infection that is characterized by activation of multiple defense responses including expression of defenserelated genes, regulated by different types of transcription factors (TFs).…”

Section: Introductionmentioning

confidence: 99%

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GhNAC18, a novel cotton (Gossypium hirsutum L.) NAC gene, is involved in leaf senescence and diverse stress responses

Evans¹,

Liu²,

Guo³

et al. 2016

Afr. J. Biotechnol.

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GhNAC18 is a novel NAC gene that was isolated from cotton (Gossypium hirsutum L.). The full-length cDNA was 1511 bp including an open reading frame of 1260 bp in length and encodes a protein of 419 amino acids. With qRT-PCR analysis, GhNAC18 was downregulated during natural and dark-induced senescence, implicating this gene as anti-aging gene in cotton. Analysis of its promoter revealed a group of putative cis-acting elements especially, the light and stress responsive elements, indicating that it may have a potential role in leaf development. Additionally, GhNAC18 was found to have transcriptional activation activities on its C-terminal region and by bioinformatics analysis, GhNAC18 was localized in the nucleus. Tissue specific expression analysis indicated that GhNAC18 is constitutively expressed in roots, stems, earlier stages of senescing leaves, fibers and flower parts with high expression levels registered in the young leaves and cotyledon leaves. GhNAC18 was upregulated by exogenous application of various phytohormones including salicylic acid (SA), methyl Jasmonate (MeJA) and ethylene (ET) but downregulated with abscisic acid (ABA). Moreover, the gene was induced by drought (PEG6000), H 2 O 2 , cold (4°C) and wounding but was inhibited by high salinity. These results indicated that GhNAC18 is a transcriptional activator that is involved in leaf development, especially inhibition of leaf senescence and plant stress responses in cotton. This study provides fundamental information on understanding the function of GhNAC18 gene in cotton leaf senescence and stress tolerance and thereafter its manipulation for breeding of late-aging and stress-tolerant cultivars.

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Section: Characterization and Cloning Of Ghnac18contrasting

confidence: 37%

Section: Introductionmentioning

confidence: 99%

GhNAC18, a novel cotton (Gossypium hirsutum L.) NAC gene, is involved in leaf senescence and diverse stress responses

Evans¹,

Liu²,

Guo³

et al. 2016

Afr. J. Biotechnol.

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“…Regulates leaf senescence via the ABA mediated pathway [128] 20 GhXND1/XYLEM NAC DOMAIN 1 (Gossypium hirsutum)…”

Section: Full Length and C-terminal Nucleusmentioning

confidence: 99%

May the Fittest Protein Evolve: Favoring the Plant‐Specific Origin and Expansion of NAC Transcription Factors

Mathew

Agarwal

2018

BioEssays

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Plant-specific NAC transcription factors (TFs) evolve during the transition from aquatic to terrestrial plant life and are amplified to become one of the biggest TF families. This is because they regulate genes involved in water conductance and cell support. They also control flower and fruit formation. The review presented here focuses on various properties, regulatory intricacies, and developmental roles of NAC family members. Processes controlled by NACs depend majorly on their transcriptional properties. NACs can function as both activators and/or repressors. Additionally, their homo/hetero dimerization abilities can also affect DNA binding and activation properties. The active protein levels are dependent on the regulatory cascades. Because NACs regulate both development and stress responses in plants, in-depth knowledge about them has the potential to help guide future crop improvement studies.

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“…For example, AtORE1, OsNAC2 and SIORE2 are members of the ORE1 subgroup of the NAC gene family, which regulate leaf senescence (Kim et al, 2009;Mao et al, 2017;Lira et al, 2017). AtNAP, GhNAP, OsNAP, SiNAP and BeNAP belong to the NAP subgroup of the NAC gene family, and all of which also regulate senescence (Guo & Gan, 2006;Chen et al, 2011;Liang et al, 2014;Fan et al, 2015;Ren et al, 2017a). Moreover, Most NAC genes regulate plant senescence by participating in the regulatory pathways of senescence-related hormones and/or stress response, such as abscisic acid (ABA), methyl jasmonate (MeJA), ethylene, salicylic acid (SA), drought, salt stress, dark and so on.…”

Section: Introductionmentioning

confidence: 99%

“…(B) Leaves detached from plants in (A). G1-G3, three groups of leaves divided according to the senescence status and the method ofFan et al (2015). G1, the first to the sixth leaves which were dry.…”

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confidence: 99%

Overexpression of PheNAC3 from moso bamboo promotes leaf senescence and enhances abiotic stress tolerance in Arabidopsis

Xie

Cai

et al. 2020

PeerJ

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The NAC family is one of the largest transcription factor families unique to plants, which regulates the growth and development, biotic and abiotic stress responses, and maturation and senescence in plants. In this study, PheNAC3, a NAC gene, was isolated and characterized from moso bamboo (Phyllostachys edulis). PheNAC3 belong to the NAC1 subgroup and has a conserved NAC domain on the N-terminus, which with 88.74% similarity to ONAC011 protein. PheNAC3 localized in the nucleus and exhibited transactivation activity. PheNAC3 was upregulated during the process of senescence of leaves and detected shoots. PheNAC3 was also induced by ABA, MeJA, NaCl and darkness, but it had no remarkable response to PEG and SA treatments. Overexpression of PheNAC3 could cause precocious senescence in Arabidopsis. Transgenic Arabidopsis displayed faster seed germination, better seedling growth, and a higher survival rate than the wild-type under salt or drought stress conditions. Moreover, AtSAG12 associated with senescence and AtRD29A and AtRD29b related to ABA were upregulated by PheNAC3 overexpression, but AtCAB was inhibited. These findings show that PheNAC3 may participate in leaf senescence and play critical roles in the salt and drought stress response.

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A novel NAP member GhNAP is involved in leaf senescence inGossypium hirsutum

Abstract: HighlightGhNAP could regulate leaf senescence via the ABA-mediated pathways and is related to the yield and quality of cotton.

Cited by 68 publications

References 58 publications

GhNAC18, a novel cotton (Gossypium hirsutum L.) NAC gene, is involved in leaf senescence and diverse stress responses

GhNAC18, a novel cotton (Gossypium hirsutum L.) NAC gene, is involved in leaf senescence and diverse stress responses

May the Fittest Protein Evolve: Favoring the Plant‐Specific Origin and Expansion of NAC Transcription Factors

Overexpression of PheNAC3 from moso bamboo promotes leaf senescence and enhances abiotic stress tolerance in Arabidopsis

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