Influence of delta-hexachlorocyclohexane (δ-HCH) to Phytophthora ×alni resistant Alnus glutinosa genotypes − Evaluation of physiological parameters and remediation potential

Košková, Stanislava; Štochlová, P.; Novotná, Kateřina; Amirbekov, Aday; Hrabák, Pavel

doi:10.1016/j.ecoenv.2022.114235

Cited by 3 publications

(3 citation statements)

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“…Specifically, it attained impressive removal rates of 96.8% for ClB and 81.7% for total HCH over a 12-month period. The low removal efficiencies of δ-HCH compared to the study by Košková et al 51 may be due to young age of the A. glutinosa seedling in their experiment. The differences in presented results can be attributed to differences in the persistence and physical and chemical properties of each HCH isomer, such as solubility and volatility.…”

Section: Discussioncontrasting

confidence: 59%

“…auxins (AUX), cytokinins (CK), gibberellins (GA), ethylene (ETH), brassinosteroids (BR), strigolactones (SL), abscisic acid (ABA), salicylates (SA) and jasmonates (JA), all hormones involved in the stress response. In our previous study on the effect of HCHs on the germination, early development and remediation potential of different progeny from maternal A. glutinosa trees 51 , we were able to demonstrate an effect of HCH on selected phytohormones. In this case, the concentrations of growth (Indole-3-acetic acid (IAA)) and stress (JA, SA and ABA) hormones were altered compared to the control group following addition of HCH, depending on the type of progeny.…”

Section: Introductionmentioning

confidence: 68%

“…Desai et al were able to show that the species was effective at taking up lead (Pb) from contaminated soils 52 , while Tischer & Hübner proposed its use for degrading mineral oil hydrocarbons, phenol and polycyclic aromatic hydrocarbons (PAHs) through promotion of microbial activity via mycorrhizal nitrogen fixation 53 . While, to the best of our knowledge, no full-scale study has yet been published on HCH uptake by A. glutinosa , our own preliminary studies have demonstrated that presence of 12-day-old A. glutinosa seedlings enhances δ-HCH removal by 21–36% compared to control plots without seedlings 51 .…”

Section: Introductionmentioning

confidence: 70%

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Assessing HCH isomer uptake in Alnus glutinosa: implications for phytoremediation and microbial response

Amirbekov,

Vrchovecka,

Riha

et al. 2024

Sci Rep

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Although the pesticide hexachlorocyclohexane (HCH) and its isomers have long been banned, their presence in the environment is still reported worldwide. In this study, we investigated the bioaccumulation potential of α, β, and δ hexachlorocyclohexane (HCH) isomers in black alder saplings (Alnus glutinosa) to assess their environmental impact. Each isomer, at a concentration of 50 mg/kg, was individually mixed with soil, and triplicate setups, including a control without HCH, were monitored for three months with access to water. Gas chromatography–mass spectrometry revealed the highest concentrations of HCH isomers in roots, decreasing towards branches and leaves, with δ-HCH exhibiting the highest uptake (roots—14.7 µg/g, trunk—7.2 µg/g, branches—1.53 µg/g, leaves—1.88 µg/g). Interestingly, α-HCH was detected in high concentrations in β-HCH polluted soil. Phytohormone analysis indicated altered cytokinin, jasmonate, abscisate, and gibberellin levels in A. glutinosa in response to HCH contamination. In addition, amplicon 16S rRNA sequencing was used to study the rhizosphere and soil microbial community. While rhizosphere microbial populations were generally similar in all HCH isomer samples, Pseudomonas spp. decreased across all HCH-amended samples, and Tomentella dominated in β-HCH and control rhizosphere samples but was lowest in δ-HCH samples.

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Section: Discussioncontrasting

confidence: 59%

Section: Introductionmentioning

confidence: 68%