Silicon nanoparticles in higher plants: Uptake, action, stress tolerance, and crosstalk with phytohormones, antioxidants, and other signalling molecules

Environmental Pollution, Год журнала: 2022, Номер 310, С. 119855 - 119855

Опубликована: Авг. 5, 2022

Язык: Английский

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Silica nanoparticles as pesticide against insects of different feeding types and their non-target attraction of predators

Scientific Reports, Год журнала: 2021, Номер 11(1)

Опубликована: Июль 14, 2021

Abstract The agricultural use of silica (SiO 2 ) nanoparticles (NPs) has the potential to control insect pests while safety and tritrophic effects on plants beneficial natural enemies remains unknown. Here, we evaluate NPs with different feeding niches, enemies, a plant. Silica were applied at concentrations (75–425 mg/L) field-cultivated faba bean soybean for two growing seasons. pests, cowpea aphid Aphis craccivora American serpentine leafminer Liriomyza trifolii , pest, cotton leafworm Spodoptera littoralis monitored along their associated predators. Additional laboratory experiments performed test growth seedlings determine whether rove beetle Paederus fuscipes is attracted leafworm-infested treated NPs. In field experiments, reduced populations all three predators, including beetles, as concentration increased. fields, however, total number predators initially increased after applying lowest concentration. An olfactometer-based choice found that beetles more likely move towards an herbivore-infested plant than water-treated control, suggesting enhance attraction via herbivore-induced volatiles. laboratory, inhibited development roots 400 mg/L, they did not affect germination percentage, time, shoot length, or vigor index compared control.

Язык: Английский

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A shift from phenol to silica‐based leaf defences during long‐term soil and ecosystem development

Ecology Letters, Год журнала: 2021, Номер 24(5), С. 984 - 995

Опубликована: Март 11, 2021

Abstract The resource availability hypothesis predicts that plants adapted to infertile soils have high levels of anti‐herbivore leaf defences. This has been mostly explored for secondary metabolites such as phenolics, whereas it remains underexplored silica‐based We determined concentrations total phenols and silicon (Si) in growing along the 2‐million‐year Jurien Bay chronosequence, exhibiting an extreme gradient soil fertility. found nitrogen (N) limitation on young led a greater expression phenol‐based defences, old, phosphorus (P)‐impoverished favoured Both defence types were negatively correlated at community individual species level. Our results suggest trade‐off among these two strategies based strength type nutrient limitation, thereby opening up new perspectives plant research. study also highlights importance defences under low P supply.

Язык: Английский

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Global patterns of leaf construction traits and their covariation along climate and soil environmental gradients

New Phytologist, Год журнала: 2021, Номер 232(4), С. 1648 - 1660

Опубликована: Авг. 21, 2021

Summary Leaf functional traits and their covariation underlie plant ecological adaptations along environmental gradients, but there is limited information on the global patterns of key leaf construction traits. To explore how co‐vary across diverse climate soil conditions, we compiled a dataset including cell wall mass per unit (CW ), carbon (C) calcium (Ca) concentrations, specific area (SLA) for 2348 angiosperm species from 340 sites world‐wide. Our results demonstrated negative correlations between C Ca concentrations SLA nongraminoid angiosperms. concentration increased with increasing mean annual temperature (MAT) precipitation (MAP) decreasing pH carbonate (CaCO 3 ) concentration, whereas exhibited opposite responses to these variables. The covariations Ca–C SLA–C were stronger in habitats lower MAT MAP, and/or higher CaCO content. This global‐scale analysis demonstrates that together govern biomass investment strategies leaves nongraminoids. We conclude conditions strongly shape patterns.

Язык: Английский

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Nanosilicon enhances maize resistance against oriental armyworm (Mythimna separata) by activating the biosynthesis of chemical defenses

The Science of The Total Environment, Год журнала: 2021, Номер 778, С. 146378 - 146378

Опубликована: Март 12, 2021

Язык: Английский

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Integrated view of plant metabolic defense with particular focus on chewing herbivores

Journal of Integrative Plant Biology, Год журнала: 2021, Номер 64(2), С. 449 - 475

Опубликована: Дек. 16, 2021

Success of plants largely depends on their ability to defend against herbivores. Since emergence the first voracious consumers, maintained adapting structures and chemistry escape from extinction. The constant pressure was further accelerated by adaptation herbivores plant defenses, which all together sparked rise a chemical empire comprised thousands specialized metabolites currently found in plants. Metabolic diversity kingdom is truly amazing, although many have already been identified, large number potentially useful chemicals remain unexplored bio-resources. Similarly, biosynthetic routes for involve enzymes, some still wait identification biochemical characterization. Moreover, regulatory mechanisms that control gene expression enzyme activities metabolism are scarcely known. Finally, understanding how defense exert toxicity and/or repellency remains limited typical examples, such as proteinase inhibitors, cyanogenic compounds nicotine. In this review, we attempt summarizing current status quo metabolic predominantly based survey ubiquitous examples interactions with chewing

Язык: Английский

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Silicon-Mediated Enhancement of Herbivore Resistance in Agricultural Crops

Frontiers in Plant Science, Год журнала: 2021, Номер 12

Опубликована: Фев. 11, 2021

Silicon (Si) is a beneficial mineral that enhances plant protection against abiotic and biotic stresses, including insect herbivores. Si increases mechanical biochemical defenses in variety of species. However, the use agriculture remains poorly adopted despite its widely documented benefits health. In this study, we tested effect supplementation on induction resistance chewing herbivore crops with differential ability to accumulate element. Our model system comprised generalist fall armyworm (FAW) Spodoptera frugiperda three economically important species uptake silicon: tomato (non-Si accumulator), soybean, maize (Si-accumulators). We investigated effects supply herbivory physical defenses, growth using potted plants greenhouse conditions. Herbivory increased peroxidase (POX) activity trichome density tomato, concentration phenolics soybean. leaf all plants. Previous affected FAW larval weight gain tested, treatment further reduced larvae fed accumulator Notably, our results strongly suggest non-glandular trichomes are reservoirs may increase conclude offers transient more lasting maize. promising strategy management programs herbivores Si-accumulator

Язык: Английский

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Landscape composition influences invertebrate herbivory on flowering forbs in semi-natural grasslands

Basic and Applied Ecology, Год журнала: 2025, Номер unknown

Опубликована: Март 1, 2025

Язык: Английский

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Silicon Effects Depend upon Insect Herbivore Guild and Has Limited Influence on Gall-Inducing Insects of Bauhinia brevipes

Plants, Год журнала: 2025, Номер 14(2), С. 250 - 250

Опубликована: Янв. 17, 2025

Silicon (Si) is a widely recognized element in plant defense, often enhancing resistance to herbivory by strengthening cell walls and deterring feeding external herbivores. However, its impact on internal, endophytic herbivores, such as gall-inducing insects, remains underexplored. This study investigates the role of silicon Bauhinia brevipes, focusing effects insects. We hypothesize that while strengthens tissues reduces it may have limited effect internal feeders, Our results indicate accumulation leaves significantly chewing insects but has no direct occurrence content galled was lower compared healthy leaves, suggesting manipulate distribution mitigate defensive effects. hypersensitivity reactions were positively influenced silicon, highlighting this localized defense mechanisms. findings reveal silicon’s tissue-specific roles emphasizing need for more research nuanced interactions with herbivores implications ecological applications. contributes literature multifaceted plant–herbivore potential applications sustainable pest management.

Язык: Английский

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Silicon Cycling in Forest Ecosystems: A Review Focusing on the Role of Soil Biogeochemistry

Silicon, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Язык: Английский

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