The effect of graphene oxide on adventitious root formation and growth in apple

Li, Feihong; Sun, Chao; Li, Xuehan; Yu, Xinyi; Luo, Chen; Shen, Yanying; Qu, Shenchun

doi:10.1016/j.plaphy.2018.05.029

Cited by 54 publications

(40 citation statements)

References 36 publications

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“…Our results proved that the NCED transcript level strongly increased when plants were treated with GO, which resulted in a high ABA content and decreased root length, further proving that ABA negatively regulates lateral root growth. A previous report also proved that GO treatment resulted in increased ABA contents and decreased IAA contents [10]. However, under increasing IAA concentrations, GO and IAA cotreatment gradually decreased NCED transcript levels and ABA concentrations.…”

Section: Go Modulates Plant Root Growth Via Crosstalk Between Multiplmentioning

confidence: 78%

“…GO treatments significantly decreased the transcript levels of the auxin efflux carriers, PIN7 and ABCB1, and of ARR3 (a CTK response regulator) with increasing GO concentration. The low-concentration (1 mg/L) GO treatments increased the transcript levels of ARRO1 and TTG1, but the high-concentration (10 mg/ L) GO treatments inhibited the transcription of these genes, which are involved in root growth [10]. It is possible that the GO treatment increased the ABA content but then decreased the IAA content under high ABA concentration.…”

Section: Go Modulates Plant Root Growth Via Crosstalk Between Multiplmentioning

confidence: 99%

“…Research has shown that under stress conditions, plant growth and defense responses are regulated in a coordinated manner by the activity of several phytohormones, such as ABA, CTK, GA and IAA. In addition, studies have shown that nanomaterial treatments can alter the expression levels of genes involved in multiple pathways, including the stress responses, cell metabolism, electron transport, and ABA and IAA synthesis pathways [10].…”

Section: Introductionmentioning

confidence: 99%

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Graphene oxide and indole-3-acetic acid cotreatment regulates the root growth of Brassica napus L. via multiple phytohormone pathways

Xie

Fan

et al. 2020

BMC Plant Biol

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Background: Studies have indicated that graphene oxide (GO) could regulated Brassica napus L. root growth via abscisic acid (ABA) and indole-3-acetic acid (IAA). To study the mechanism and interaction between GO and IAA further, B. napus L (Zhongshuang No. 9) seedlings were treated with GO and IAA accordance with a two factor completely randomized design. Results: GO and IAA cotreatment significantly regulated the root length, number of adventitious roots, and contents of IAA, cytokinin (CTK) and ABA. Treatment with 25 mg/L GO alone or IAA (> 0.5 mg/L) inhibited root development. IAA cotreatment enhanced the inhibitory role of GO, and the inhibition was strengthened with increased in IAA concentration. GO treatments caused oxidative stress in the plants. The ABA and CTK contents decreased; however, the IAA and gibberellin (GA) contents first increased but then decreased with increasing IAA concentration when IAA was combined with GO compared with GO alone. The 9-cis-epoxycarotenoid dioxygenase (NCED) transcript level strongly increased when the plants were treated with GO. However, the NCED transcript level and ABA concentration gradually decreased with increasing IAA concentration under GO and IAA cotreatment. GO treatments decreased the transcript abundance of steroid 5-alpha-reductase (DET2) and isochorismate synthase 1 (ICS), which are associated with brassinolide (BR) and salicylic acid (SA) biosynthesis, but increased the transcript abundance of brassinosteroid insensitive 1-associated receptor kinase 1 (BAK1), cam-binding protein 60-like G (CBP60) and calmodulin binding protein-like protein 1, which are associated with BR and SA biosynthesis. Last, GO treatment increased the transcript abundance of 1-aminocyclopropane-1-carboxylic acid synthase 2 (ACS2), which is associated with the ethylene (ETH) pathway.(Continued on next page) Conclusions: Treatment with 25 mg/L GO or IAA (> 0.5 mg/L) inhibited root development. However, IAA and GO cotreatment enhanced the inhibitory role of GO, and this inhibition was strengthened with increased IAA concentration. IAA is a key factor in the response of B. napus L to GO and the responses of B. napus to GO and IAA cotreatment involved in multiple pathways, including those involving ABA, IAA, GA, CTK, BR, SA. Specifically, GO and IAA cotreatment affected the GA content in the modulation of B. napus root growth.

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Section: Go Modulates Plant Root Growth Via Crosstalk Between Multiplmentioning

confidence: 78%

Section: Go Modulates Plant Root Growth Via Crosstalk Between Multiplmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Graphene oxide and indole-3-acetic acid cotreatment regulates the root growth of Brassica napus L. via multiple phytohormone pathways

Xie

Fan

et al. 2020

BMC Plant Biol

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“…Reduced graphene induced cytotoxicity and inhibits photosynthetic performance of the green alga [25]. Graphene also induced cell death in Arabidopsis thaliana [26,27], cadmium uptake, growth inhibition photosynthesis inhibition, and nutritional disorder in wheat seedlings [28,29], cadmium uptake, pH alteration, iron overload and oxidative damage in rice [30,31], roots growth inhibition and oxidative stress in apple [32].…”

Section: Introductionmentioning

confidence: 99%

“…In general, it seems that positive effects of graphene on plants were at low concentrations while most studies of adverse effects were conducted at high concentrations graphene to study the acute toxicity in plant [15,23,32]. In rice plants, graphene absorbed into leaves could be converted into CO 2 and released through mineralization [33], indication of the environmental fate of graphene in soil-plant system.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome analysis reveals that multiple metabolic pathways operate in Zea mays roots subjected to graphene

Chen¹,

Zhao²,

Song³

et al. 2020

Preprint

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Background: To explore the effects and molecular mechanism of graphene on the growth and development of Zea mays L., the seeds were randomly divided into the control and experimental groups in this study, the roots of Zea mays L. seedlings were watered by different concentrations (0~100 mg/L) graphene. Results: By evaluating the root growth indices of maize, 50 mg/L graphene increased significantly the total root length, root volume, the number of root tips and root forks of maize seedlings compared with the control group. The contents of nitrogen and potassium in the soil around the roots were elevated after the treatment of 50 mg/L graphene. Then, we compared the transcriptome changes of Zea mays roots in response to 50 mg/L graphene treatment. Transcriptional factor regulation, plant hormone signal transduction, nitrogen and potassium metabolism as well as secondary metabolism in maize roots subjected to graphene showed significant up-regulated expressions, all of which might be related to mechanisms underlying graphene response. Based on qPCR validations, we proposed several candidate genes that might be responded to the graphene treatment in maize roots. Conclusion: The transcriptional profiles presented here provide a foundation for deciphering the mechanism between the graphene and maize roots interaction.

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Toxicological Concerns of Nanomaterials in Agriculture

Rienzie

Adassooriya

2021

Nanotechnology in Plant Growth Promotion and Protection

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The effect of graphene oxide on adventitious root formation and growth in apple

Cited by 54 publications

References 36 publications

Graphene oxide and indole-3-acetic acid cotreatment regulates the root growth of Brassica napus L. via multiple phytohormone pathways

Graphene oxide and indole-3-acetic acid cotreatment regulates the root growth of Brassica napus L. via multiple phytohormone pathways

Transcriptome analysis reveals that multiple metabolic pathways operate in Zea mays roots subjected to graphene

Toxicological Concerns of Nanomaterials in Agriculture

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