Effects of Biostimulants in Horticulture, with Emphasis on Ornamental Plant Production

Kisvarga, Szilvia; Hamar-Farkas, Dóra; Boronkay, G.; Neményi, András; Orlóci, László

doi:10.3390/agronomy12051043

Cited by 44 publications

(32 citation statements)

References 210 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Despite the photosynthetic nature of these bacterial genera, they are recognised as rhizosphere-associated, a trait observed in numerous other enriched bacterial taxa within the plantamendment combination, such as Chitinophagaceae, Rhizobiaceae, Burkholderiaceae, Sphingobacteriaceae, Saccharimonadales, Rhodanbacteraceae and Sphingomonadaceae. (Andersen et al, 2018;Deng et al, 2022;Gopalakrishnan et al, 2015;Hayat et al, 2010;Kisvarga et al, 2023;Luo et al, 2023;Wang et al, 2022;Woli nska et al, 2018;Zuo et al, 2022;Zverev et al, 2020).…”

Section: An Interaction Between Plant Roots and Amendment Primarily G...mentioning

confidence: 99%

Bacterial community shifts occur primarily through rhizosphere expansion in response to subsoil amendments

Vido,

Wang,

Sale

et al. 2024

Environmental Microbiology

View full text Add to dashboard Cite

To comprehensively evaluate the impact of agricultural management practices on soil productivity, it is imperative to conduct a thorough analysis of soil bacterial ecology. Deep‐banding nutrient‐rich amendments is a soil management practice that aims to improve plant growth and soil structure by addressing the plant‐growth constraints posed by dense‐clay subsoils. However, the response of bacterial communities to deep‐banded amendments has not been thoroughly studied. To address this knowledge gap, we conducted a controlled‐environment column experiment to examine the effects of different types of soil amendments (poultry litter, wheat straw + chemical fertiliser and chemical fertiliser alone) on bacterial taxonomic composition in simulated dense‐clay subsoils. We evaluated the bacterial taxonomic and ecological group composition in soils beside and below the amendment using 16S rRNA amplicon sequencing and robust statistical methods. Our results indicate that deep‐banded amendments alter bacterial communities through direct and indirect mechanisms. All amendments directly facilitated a shift in bacterial communities in the absence of growing wheat. However, a combination of amendments with growing wheat led to a more pronounced bacterial community shift which was distinct from and eclipsed the direct impact of the amendments and plants alone. This indirect mechanism was evidenced to be mediated primarily by plant growth and hypothesised to result from an enhancement in wheat root distribution, density and rhizodeposition changes. Therefore, we propose that subsoil amendments regardless of type facilitated an expansion in the rhizosphere which engineered a substantial plant‐mediated bacterial community response within the simulated dense‐clay subsoils. Overall, our findings highlight the importance of considering the complex and synergistic interactions between soil physicochemical properties, plant growth and bacterial communities when assessing agricultural management strategies for improving soil and plant productivity.

show abstract

Section: An Interaction Between Plant Roots and Amendment Primarily G...mentioning

confidence: 99%

Bacterial community shifts occur primarily through rhizosphere expansion in response to subsoil amendments

Vido,

Wang,

Sale

et al. 2024

Environmental Microbiology

View full text Add to dashboard Cite

show abstract

“…Azotobacter spp. can also increase the beneficial activities of other biofertilizers if used in consortium, as well as being beneficial in the removal of different stresses [ 380 , 381 , 382 ]. It is also recommended that more research take place this topic to show the exact mechanisms of Azotobacter spp., which can ameliorate plant health and obviate the stressors.…”

Section: Stenotrophomonasmentioning

confidence: 99%

The Roles of Plant-Growth-Promoting Rhizobacteria (PGPR)-Based Biostimulants for Agricultural Production Systems

Sun,

Shahrajabian,

Soleymani

2024

Plants

View full text Add to dashboard Cite

The application of biostimulants has been proven to be an advantageous tool and an appropriate form of management towards the effective use of natural resources, food security, and the beneficial effects on plant growth and yield. Plant-growth-promoting rhizobacteria (PGPR) are microbes connected with plant roots that can increase plant growth by different methods such as producing plant hormones and molecules to improve plant growth or providing increased mineral nutrition. They can colonize all ecological niches of roots to all stages of crop development, and they can affect plant growth and development directly by modulating plant hormone levels and enhancing nutrient acquisition such as of potassium, phosphorus, nitrogen, and essential minerals, or indirectly via reducing the inhibitory impacts of different pathogens in the forms of biocontrol parameters. Many plant-associated species such as Pseudomonas, Acinetobacter, Streptomyces, Serratia, Arthrobacter, and Rhodococcus can increase plant growth by improving plant disease resistance, synthesizing growth-stimulating plant hormones, and suppressing pathogenic microorganisms. The application of biostimulants is both an environmentally friendly practice and a promising method that can enhance the sustainability of horticultural and agricultural production systems as well as promote the quantity and quality of foods. They can also reduce the global dependence on hazardous agricultural chemicals. Science Direct, Google Scholar, Springer Link, CAB Direct, Scopus, Springer Link, Taylor and Francis, Web of Science, and Wiley Online Library were checked, and the search was conducted on all manuscript sections in accordance with the terms Acinetobacter, Arthrobacter, Enterobacter, Ochrobactrum, Pseudomonas, Rhodococcus, Serratia, Streptomyces, Biostimulants, Plant growth promoting rhizobactera, and Stenotrophomonas. The aim of this manuscript is to survey the effects of plant-growth-promoting rhizobacteria by presenting case studies and successful paradigms in various agricultural and horticultural crops.

show abstract

“…Applications of PHs increased the leaf area and the yield of some fruit trees and other horticultural plants [78][79][80]. In this respect, the available literature data highlight a positive effect of the PHs' application, isolated AAs (proline, tryptophan) or mixtures of AAs (alone or combined with micronutrients) on flowering regulation, fruiting, and fruit quality [81][82][83][84][85][86].…”

Section: Shoot Biomass and Yieldmentioning

confidence: 99%

Biostimulant Properties of Protein Hydrolysates: Recent Advances and Future Challenges

Malécange

Sergheraert²,

Teulat

et al. 2023

IJMS

View full text Add to dashboard Cite

Over the past decade, plant biostimulants have been increasingly used in agriculture as environment-friendly tools that improve the sustainability and resilience of crop production systems under environmental stresses. Protein hydrolysates (PHs) are a main category of biostimulants produced by chemical or enzymatic hydrolysis of proteins from animal or plant sources. Mostly composed of amino acids and peptides, PHs have a beneficial effect on multiple physiological processes, including photosynthetic activity, nutrient assimilation and translocation, and also quality parameters. They also seem to have hormone-like activities. Moreover, PHs enhance tolerance to abiotic stresses, notably through the stimulation of protective processes such as cell antioxidant activity and osmotic adjustment. Knowledge on their mode of action, however, is still piecemeal. The aims of this review are as follows: (i) Giving a comprehensive overview of current findings about the hypothetical mechanisms of action of PHs; (ii) Emphasizing the knowledge gaps that deserve to be urgently addressed with a view to efficiently improve the benefits of biostimulants for different plant crops in the context of climate change.

show abstract

Effects of Biostimulants in Horticulture, with Emphasis on Ornamental Plant Production

Cited by 44 publications

References 210 publications

Bacterial community shifts occur primarily through rhizosphere expansion in response to subsoil amendments

Bacterial community shifts occur primarily through rhizosphere expansion in response to subsoil amendments

The Roles of Plant-Growth-Promoting Rhizobacteria (PGPR)-Based Biostimulants for Agricultural Production Systems

Biostimulant Properties of Protein Hydrolysates: Recent Advances and Future Challenges

Contact Info

Product

Resources

About