Nanoparticles and Nanomaterials as Plant Biostimulants

Juárez-Maldonado, Antonio; Ortega-Ortíz, Hortensia; Morales-Díaz, América Berenice; González-Morales, Susana; Morelos-Moreno, Álvaro; Fuente, Marcelino Cabrera-De la; Sandoval-Rangel, Alberto; Cadenas‐Pliego, Gregorio; Benavides-Mendoza, Adalberto

doi:10.3390/ijms20010162

Cited by 147 publications

(71 citation statements)

References 94 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Different plant responses to different AgNP doses may be the effect of hormesis, i.e., a stimulatory influence of low doses and inhibitory influence of high doses of the same agent [46]. According to Juárez-Maldonado et al [47], the surface charges of nanoparticles interact with the surface charges of plant cells, inducing plant responses from biostimulation to toxicity. These authors assume a two-stage biostimulation process.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

et al. 2019

View full text Add to dashboard Cite

Nanoparticles exhibit unique biological activities and may serve as novel plant growth stimulators. This research consisted of a two-year pot experiment designed to find out if silver nanoparticles (AgNPs) might be used in the cultivation of Oriental lilies. In the first year, we evaluated the effects of various concentrations of AgNPs (0, 25, 50, 100, and 150 ppm) and their application methods (pre-planting bulb soaks, foliar sprays, and substrate drenches) on the growth and flowering of Lilium cv. Mona Lisa. In the second year, we evaluated the effects of soaking the bulbs of cv. Little John in the same concentration of AgNP solution on plant morphological features, leaf content of photosynthetic pigments, basic macronutrients, and complex biomolecules with the use of the Fourier-transform infrared spectroscopy (FTIR). Soaking the bulbs in a nanoparticle solution turned out to be the most effective strategy for growth and flowering promotion. AgNPs stimulated plant growth, as manifested by enhanced accumulation of leaf and bulb biomass and accelerated flowering. Moreover, plants treated with silver nanoparticles showed higher leaf greenness index, formed more flowers, and flowered longer. At 100 ppm AgNPs, the leaves accumulated the highest content of chlorophyll a, chlorophyll b, and carotenoids, and were the richest in potassium, calcium, and sulfur. The FTIR spectra did not show any changes in absorbance intensity and chemical composition in the leaves from AgNP-treated bulbs.

show abstract

Section: Discussionmentioning

confidence: 99%

“…These authors assume a two-stage biostimulation process. The initial stage of physicochemical character involves the interaction of surface charges, while the later stage consists of a series of biochemical stimuli that promote nanoparticle penetration into the cells or cause changes in the membranes or integral proteins [47].…”

Section: Discussionmentioning

confidence: 99%

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

et al. 2019

View full text Add to dashboard Cite

show abstract

“…A new category of biostimulant products, including nanoparticles and nanomaterials, has been recently proposed by Juárez-Maldonado et al [93]. Nanoparticles and nanomaterials are usually defined as particles with dimensions between about 1 nm and 100 nm that show properties that are not found in their bulk form.…”

Section: Classification Of Biostimulants In Categoriesmentioning

confidence: 99%

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

2019

View full text Add to dashboard Cite

Abiotic stresses strongly affect plant growth, development, and quality of production; final crop yield can be really compromised if stress occurs in plants’ most sensitive phenological phases. Additionally, the increase of crop stress tolerance through genetic improvements requires long breeding programmes and different cultivation environments for crop performance validation. Biostimulants have been proposed as agronomic tools to counteract abiotic stress. Indeed, these products containing bioactive molecules have a beneficial effect on plants and improve their capability to face adverse environmental conditions, acting on primary or secondary metabolism. Many companies are investing in new biostimulant products development and in the identification of the most effective bioactive molecules contained in different kinds of extracts, able to elicit specific plant responses against abiotic stresses. Most of these compounds are unknown and their characterization in term of composition is almost impossible; therefore, they could be classified on the basis of their role in plants. Biostimulants have been generally applied to high-value crops like fruits and vegetables; thus, in this review, we examine and summarise literature on their use on vegetable crops, focusing on their application to counteract the most common environmental stresses.

show abstract

“…Notably, the projects BIO-FERTIL (Poland), BIOFECTOR (Germany), and HUMIC-XL (Netherlands) have highlighted the potential use of humic substances (HS) from waste material for plant growth, which can be a component of a local circular economy. To provide scientific evidences of the potential use of biostimulants, several reviews have been published recently (Calvo et al, 2014;du Jardin, 2015;Van Oosten et al, 2017;Abbott et al, 2018;Bulgari et al, 2019;Juárez-Maldonado et al, 2019;Pylak et al, 2019). In general, HS, seaweed extracts, beneficial microorganisms, and chitosan and protein hydrolases are listed in the mentioned review papers.…”

Section: Introductionmentioning

confidence: 99%

From Lab to Field: Role of Humic Substances Under Open-Field and Greenhouse Conditions as Biostimulant and Biocontrol Agent

et al. 2020

View full text Add to dashboard Cite

The demand for biostimulants has been growing at an annual rate of 10 and 12.4% in Europe and Northern America, respectively. The beneficial effects of humic substances (HS) as biostimulants of plant growth have been well-known since the 1980s, and they can be supportive to a circular economy if they are extracted from different renewable resources of organic matter including harvest residues, wastewater, sewage sludge, and manure. This paper presents an overview of the scientific outputs on application methods of HS in different conditions. Firstly, the functionality of HS in the primary and secondary metabolism under stressed and non-stressed cropping conditions is discussed along with crop protection against pathogens. Secondly, the advantages and limitations of five different types of HS application under open-fields and greenhouse conditions are described. Key factors, such as the chemical structure of HS, application method, optimal rate, and field circumstances, play a crucial role in enhancing plant growth by HS treatment as a biostimulant. If we can get a better grip on these factors, HS has the potential to become a part of circular agriculture.

show abstract

Nanoparticles and Nanomaterials as Plant Biostimulants

Cited by 147 publications

References 94 publications

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

Stimulatory Effect of Silver Nanoparticles on the Growth and Flowering of Potted Oriental Lilies

Biostimulants Application in Horticultural Crops under Abiotic Stress Conditions

From Lab to Field: Role of Humic Substances Under Open-Field and Greenhouse Conditions as Biostimulant and Biocontrol Agent

Contact Info

Product

Resources

About