Zinc-induced root architectural changes of rhizotron-grown B. napus correlate with a differential nitro-oxidative response

Feigl, Gábor; Molnár, Árpád; Szőllősi, Réka; Ördög, Attila; Törőcsik, Kitti; Oláh, Dóra; Bodor, Attila; Perei, Katalin; Kolbert, Zsuzsanna

doi:10.1016/j.niox.2019.06.003

Cited by 28 publications

(27 citation statements)

References 86 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…CAT activity in soil was determined according to Feigl et al (2019). A soil suspension (consisting of 2 g soil, 40 mL distilled water and 5 mL 0.3% H 2 O 2 solution) was incubated for 20 min, and then 5 mL 1.5 M H 2 SO 4 was added.…”

Section: Determination Of Soil Enzyme Activitymentioning

confidence: 99%

Evaluating the effects of sewage sludge compost applications on the microbial activity, the nutrient and heavy metal content of a Chernozem soil in a field survey

et al. 2020

Self Cite

View full text Add to dashboard Cite

Sewage sludge contains organic matter and micro and macronutrients which are potentially useful for agricultural usage. However, it can be harmful when containing undesirable amounts of organic pollutants, heavy metals, or pathogens. Our study focused on examining the changes in the extractable nutrient, organic matter and heavy metal contents of a Chernozem soil and the alteration of the soil biological activity as a consequence of low-dose municipal sewage sludge compost applications (0.5 t/ha). Sampling campaigns were done in 2018 near Újkígyós (SE Hungary) during which composite soil samples (0–30 cm and 30–60 cm) and groundwater samples were collected for assessing changes in the nutrient and heavy metal concentrations as a result of compost amendments’ use. Additionally, upper soil (0–50 cm) and subsoil (50–80 cm) were sampled for assessing biological parameters, considered to be aerobic and anaerobic soil layers, respectively. Soil samples were analyzed for the basic pedological parameters (pH, organic matter, carbonates and texture), nutrients (K2O, P2O5, N-forms and organic matter) and heavy metal concentrations following standard extraction procedures. The microbial properties were characterized by colony-forming units (CFUs) and enzyme activity measurements. The results of the nutrient analyses show significantly increased soil-bound K2O, P2O5 and NO2− + NO3− contents linked to the sewage sludge treatments. However, neither the organic matter nor the heavy metal content varied significantly in the sludge-amended soil compared with a control site. The microbiological analyses revealed that the sewage sludge treatments tended to increase the aerobic CFUs, but not that of the anaerobic microbes. The average catalase enzyme activity in both the aerobic and anaerobic samples and the average dehydrogenase activity only in the aerobic layers showed a slight but not significant increase in the compost-amended soils. Overall, these results convincingly demonstrated that amending soils with low doses of municipal sewage sludge composts (lacking any industrial sources) can be a sustainable fertilizing practice taking advantage of their high N, P and K contents that are slowly converted to their bioavailable forms thus preventing their excessive leaching in the groundwater.

show abstract

Section: Determination Of Soil Enzyme Activitymentioning

confidence: 99%

Evaluating the effects of sewage sludge compost applications on the microbial activity, the nutrient and heavy metal content of a Chernozem soil in a field survey

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Leaching of contaminants from leaf litter is likely (Maunoury-Danger et al, 2018). Zn has been shown to increase fine root growth in some concentrations (Feigl et al, 2019), but we cannot explain why contaminated litter increased black oak seedling height. The negative response of autumn bent grass to any birch litter, whether contaminated or not, could be due to the high phenolic content of birch leaves (Keinänen et al, 1999) and might indicate that gray birch, regardless of its metal uptake, could have negative consequences for some early successional species.…”

Section: Discussionmentioning

confidence: 91%

Aboveground Competition and Herbivory Overpower Plant-Soil Feedback Contributions to Succession in a Remediated Grassland

Dietterich

Garvey

et al. 2019

Front. Ecol. Evol.

View full text Add to dashboard Cite

Plant-soil feedback (PSF) can provide a driving force during ecological succession by altering soil properties in ways that benefit or disadvantage other species in the successional sequence. Succession may be inevitable in disturbed sites remediated by planting early successional species, but information on PSF in such settings is lacking. We investigated whether gray birch (Betula populifolia), a native species but strong invader, alters succession from grassland to deciduous forest at a site contaminated with zinc, lead, and cadmium. We investigated PSF within the context of competition, herbivory, and soil contaminants, and evaluated whether gray birch, as a high metal accumulator, engages in elemental allelopathy, poisoning other species through its metal-contaminated leaf litter. We assessed the effects of gray birch on neighboring plant community structure, soil chemistry, fungal root symbionts, and the germination, growth, and herbivory of seedlings of black oak (Quercus velutina) and sugar maple (Acer saccharum), two tree species expected to follow gray birch in succession. Gray birch was associated with increased diversity in its neighborhood grassland community, increased herbivory on black oak seedlings, and influenced colonization by fungal root symbionts in both species. Seedling biomass was correlated with colonization by ectomycorrhizal fungi in black oak, but not with arbuscular mycorrhizal or dark septate fungal colonization in sugar maple. Gray birch had no effect on maple seedling performance or soil chemistry, and a small effect on black oak performance in the absence of aboveground competition. We found little evidence consistent with elemental allelopathy. Black oak and sugar maple seedlings responded more strongly to variation in soil nutrients than soil heavy metals, and they maintained leaf metal concentration profiles markedly different from those in their soils. We conclude that gray birch alters its environment in ways that could promote establishment and succession of woody species, potentially favoring those that are ectomycorrhizal, but most effects of PSF are overpowered by aboveground competition, herbivory, and/or existing abiotic soil factors. This study well illustrates why the potential for PSF to affect plant performance Dietterich et al. Plant-Soil Feedback and Succession in the Field and community structure must be examined within the context of other ecological processes. Such a broad understanding can inform decisions made in the remediation and management of disturbed sites, and our understanding of plant succession and coexistence in general.

show abstract

“…The same rhizotron system was utilized as described in [4]. 15 cm wide, 30 cm tall, and 1.6 cm thick rhizotrons were assembled from plexi panels, polifoam sheets, and screws with wing nuts ( Figure S1).…”

Section: Rhizotron System Plant Material and Growing Conditionsmentioning

confidence: 99%

“…Nonetheless, plants try to minimize the adverse effect of HMs by either avoiding or excluding them. Dealing with the fate of HMs, many studies revealed that they affect a wide range of processes, including the disturbance of germination and early development, genotoxicity, disintegration of membranes, inactivating enzymes or even causing oxidative and nitrosative stress [4][5][6]. At low concentrations, HMs are able to trigger a positive adaptation mechanism called stress-induced morphogenic response, which is a special combination of inhibited longitudinal growth of the primary root and induced lateral root development [7], resulting in a shallower but more extensive root system with potentially better tolerance against HMs [4].…”

Section: Introductionmentioning

confidence: 99%

“…To overcome the challenge of tracking the root growth real time, rhizotrons are widely used tools to in situ observe the development of root system architecture, e.g., in case of trees [20], maize [21], Arabidopsis [22], or in our previous study Brassica napus under Zn treatment [4]. A common point for all systems used is the transparent wall of the rhizotron, which allows the monitoring of root system with negligible interference.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reorganization of Protein Tyrosine Nitration Pattern Indicates the Relative Tolerance of Brassica napus (L.) over Helianthus annuus (L.) to Combined Heavy Metal Treatment

Feigl

Czifra

Molnár

et al. 2020

Plants

Self Cite

View full text Add to dashboard Cite

Metal-polluted areas, especially where municipal sewage is used as fertilizer, often have high concentrations of more than one metal. The development of the root system is regulated by a complex signaling network, which includes reactive oxygen and nitrogen species. The delicate balance of the endogenous signal system can be affected by various environmental stimuli including heavy metals (HMs) in excess. Our goal was to analyze the microelement homeostasis, root architecture, and to determine the underlying changes in the nitro-oxidative status in the root system of rapeseed (Brassica napus L.) and sunflower (Helianthus annuus L.) subjected to combined HM treatments. The effect of model-sewage in two different layouts was simulated in rhizotron system by only supplementing the highest HM concentrations (Cd, Cr, Cu, Hg, Ni, Pb, and Zn) legally allowed. The two species reacted differently to combined HM treatment; compared to the relatively sensitive sunflower, rapeseed showed better metal translocation capability and root growth even at the more severe treatment, where the pattern of protein tyrosine nitration was reorganized. The obtained results, especially the increased nitric oxide content and changed pattern of tyrosine nitration in rapeseed, can indicate acclimation and species-specific nitro-oxidative responses to combined HM stress.

show abstract

Zinc-induced root architectural changes of rhizotron-grown B. napus correlate with a differential nitro-oxidative response

Abstract: Zinc-induced root architectural changes of rhizotron-grown B. napus correlate with a differential nitro-oxidative response, Nitric Oxide (2019), doi:

Cited by 28 publications

References 86 publications

Evaluating the effects of sewage sludge compost applications on the microbial activity, the nutrient and heavy metal content of a Chernozem soil in a field survey

Evaluating the effects of sewage sludge compost applications on the microbial activity, the nutrient and heavy metal content of a Chernozem soil in a field survey

Aboveground Competition and Herbivory Overpower Plant-Soil Feedback Contributions to Succession in a Remediated Grassland

Reorganization of Protein Tyrosine Nitration Pattern Indicates the Relative Tolerance of Brassica napus (L.) over Helianthus annuus (L.) to Combined Heavy Metal Treatment

Contact Info

Product

Resources

About