Cytokinin response in pepper plants (Capsicum annuum L.) exposed to silver nanoparticles

Vinković, Tomislav; Novák, Ondřej; Strnad, Miroslav; Goessler, Walter; Jurašin, Darija Domazet; Parađiković, Nada; Vrček, Ivana Vinković

doi:10.1016/j.envres.2017.03.015

Cited by 127 publications

(58 citation statements)

References 44 publications

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“…NPs of metals present in the environment affect the level of phytohormones in plants. For instant, in the research of Vinković et al (2017), was demonstrated significant increase in levels of cytokinins in pepper plants (Capsicum annuum L.) exposed to AgNPs. Phytohormones modulates epidermal differentiation programs and interfere with trichome maturation and their size (Maes and Gossens 2010;Maes et al 2008).…”

Section: Discussionmentioning

confidence: 99%

Positive effect of AgNPs and AuNPs in in vitro cultures of Lavandula angustifolia Mill.

Jadczak

Kulpa

Bihun

et al. 2019

Plant Cell Tiss Organ Cult

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The aim of this study was determined how an addition of gold nanoparticle (AuNPs) and silver NPs (AgNPs) into culture media affects plant development and formation of oil glands in narrow-leaved lavender (Lavandula angustifolia) cv. 'Munstead'. Plant shoots were propagated on media supplemented with 1, 2, 5, 10, 20 and 50 mg dm −3 AuNPs or AgNPs (diameter of 24.2 ± 2.4 nm and 27.5 ± 4.8 nm). Both of NPs positively influenced the growth and development of lavender propagated in vitro. The culture media with NPs stimulated formation of shoots and increased plant weight. Roots of plants propagated on the media supplemented with NPs were usually longer than those in the control. Only high concentrations of NPs (20 and 50 mg dm −3) in the culture media were toxic to plants, as demonstrated by restricted shoot length and gradual decrease in the value of other morphological features. Increases in AgNPs concentration caused the number of secretory trichomes to decrease. The diameter of the trichomes on both sides of the leaf blade was larger when the plants were propagated on the media supplemented with 1 and 2 mg dm −3 NPs. The diameter of trichomes formed on the adaxial surface of the leaf blade was greatest in the media enriched with 2 mg dm −3 AgNPs and 5 mg dm −3 AuNPs, and smallest in the media enriched with 5 mg dm −3 AgNPs. The diameter of trichomes formed on the abaxial surface was largest in plants exposed to 1, 2, 5 and 10 mg dm −3 AuNPs, 1 mg dm −3 AgNPs, and smallest in plants exposed to 5 mg dm −3 AgNPs. Key message Silver and gold nanoparticles had a significantly improved the growth and development of narrow-leaved lavender propagated in vitro. The number and size of secretory trichomes formed on the leaves of narrow-leaved lavender grown in in vitro cultures depends on the concentration of silver or gold nanoparticles in the media. Keywords Micropropagation • Metal nanoparticles • Oil glands • Nanosilver • Nanogold Abbreviations NPs Nanoparticles AgNPs Silver nanoparticles AuNPs Gold nanoparticles MS Murashige and Skoog medium KIN Kinetin IAA 3-Indoleacetic acid Narrow-leaved lavender (Lavandula angustifolia Mill.) belonging to Lamiaceae family is an evergreen perennial plant with a high number of beneficial properties. The herb is native to the Mediterranean region, but is also grown in many other countries in the world (Wesołowska et al. 2019). Lavender infusions show carminative, diuretic, antirheumatic and anti-epileptic properties, and are effective painkillers, especially for nervous headaches and migraines (Gilani et al. 2000). Essential oils and extracts of the plant demonstrate antibacterial and antifungal properties (D'Auria et al. 2005). Apart from medicinal applications, lavender is Communicated by Nokwanda Pearl Makunga.

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Section: Discussionmentioning

confidence: 99%

Positive effect of AgNPs and AuNPs in in vitro cultures of Lavandula angustifolia Mill.

Jadczak

Kulpa

Bihun

et al. 2019

Plant Cell Tiss Organ Cult

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“…The foliar treatment of wheat seedlings by 35-nm AgNPs was observed to be ineffective in causing positive or negative impact at studied concentrations (Pallavi et al 2016). Several other studies have indicated that AgNPs of different sizes in variable concentrations can lead to morphological changes in plants, in addition, it can also influence the reduction in root/shoot and overall biomass (Hawthorne et al 2012, Yin et al 2012, Mirzajani et al 2013, Pokhrel and Dubey 2013, Qian et al 2013, Zuverza-Mena et al 2016, Tripathi et al 2017, Vinković et al 2017. Different studies have shown that the plants exposed to AgNPs produce a higher amount of reactive oxygen species (ROS) and antioxidant molecules (Dimkpa et al 2013, Jiang et al 2014, Belava et al 2017, Tripathi et al 2017.…”

Section: Introductionmentioning

confidence: 91%

Phytotoxic effect of silver nanoparticles in Triticum aestivum: Improper regulation of photosystem I activity as the reason for oxidative damage in the chloroplast

Rastogi¹,

Živčák²,

Tripathi³

et al. 2019

Photosynt.

111

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Silver nanoparticles (AgNPs) are used in several industries and their continuous release into environment can damage the ecosystem. Our study observed the impact of two concentrations of AgNPs (1 and 5 mM) on wheat seedlings. In this study, the treatment of AgNPs was found to have a significant impact on growth parameters, such as root and shoot length of wheat seedlings, in addition to that biochemical parameters, such as activity of catalase, glutathione, flavonoid, and chlorophyll concentrations, were also affected. AgNPs apparently suppressed the photosynthetic activity of the seedlings, with a clear destruction of photosystems at 5 mM concentration. The result also indicated an improper regulation of PSI electron transport, resulting in a damage to chloroplast structure, including photosystem itself. Our study presents a mechanism of the AgNPs action of on photosynthetic processes in plants.

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“…Cu nanoparticle treatments have been reported to activate defense mechanisms against stress and to increase the content of amino acids, ABA and phenolics [27]. Moreover, silver nanoparticle treatment increased cis-zeatin in pepper, which further proved that CTK is involved in stress responses in plants [2]. However, the mechanism of how hormones interact is not clear.…”

Section: Go Modulates Plant Root Growth Via Crosstalk Between Multiplmentioning

confidence: 99%

“…Carbon nanomaterials are types of engineered nanomaterials that are being increasingly utilized because of their excellent optical, catalytic, electrical, mechanical, and thermal properties [1]. By using carbon nanomaterials, researchers are currently resolving challenges in agriculture, such as plant disease, pesticide and stress [2]. GO is a kind of 2D nanomaterial and a functionalized form of graphene that has been increasingly applied in multiple domains since the invention of GO in 2004 [3].…”

Section: Introductionmentioning

confidence: 99%

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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Cytokinin response in pepper plants (Capsicum annuum L.) exposed to silver nanoparticles

Cited by 127 publications

References 44 publications

Positive effect of AgNPs and AuNPs in in vitro cultures of Lavandula angustifolia Mill.

Positive effect of AgNPs and AuNPs in in vitro cultures of Lavandula angustifolia Mill.

Phytotoxic effect of silver nanoparticles in Triticum aestivum: Improper regulation of photosystem I activity as the reason for oxidative damage in the chloroplast

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

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