Naphthalen-1-yl 2,4,6-Trimetil Benzenesülfonatın, Kadmiyum Stresi Altındaki Zea mays L.'de Mikro Besin ve Elemental Denge Üzerindeki Etkisi

Öz

Bu çalışma, naphthalen-1-yl 2,4,6-trimetil benzenesülfonatın (NTB) kadmiyum (Cd) stresi altındaki Zea mays L.'de mikro besin verimliliğini ve elementel durumunu iyileştirme potansiyelini araştırmaktadır. Üç haftalık mısır fideleri, NTB (0.25 mM) ile ön uygulama yapıldıktan sonra 100 µM Cd stresine maruz bırakılmıştır. Elde edilen sonuçlar, sadece Cd stresi uygulanan durumla karşılaştırıldığında, NTB uygulamasının çinko (Zn) için 3.35 ± 0.7 mg kg⁻¹ DW, demir (Fe) için 5.94 ± 0.01 mg kg⁻¹ DW ve bakır (Cu) için 1.17 ± 0.02 mg kg⁻¹ DW değerleriyle temel mikro besinlerin birikimini anlamlı derecede artırdığını göstermektedir. Buna karşılık, NTB + Cd uygulamasıyla manganez (Mn) içeriği 9.93 ± 1.4 mg kg⁻¹ DW seviyesine düşmüştür. Ayrıca, NTB uygulaması karbon (C) ve hidrojen (H) içeriklerini sırasıyla %46.65 ± 0.3 ve %6.02 ± 0.09 seviyelerine çıkarırken, azot (N) içeriği Cd stresi altında %2.37 ± 0.3’e düşmüştür. N değerindeki bu azalmaya rağmen, NTB kadmiyumun olumsuz etkilerini etkin bir şekilde hafifletmiş, böylece besin alımını artırma, elementel dengeyi optimize etme ve ağır metal stresi altındaki bitki dayanıklılığını geliştirme potansiyelini ortaya koymuştur.

Anahtar Kelimeler

• kadmiyum stresi
• elemental durum
• mısır
• mikro besin

The effect of naphthalen-1-yl 2,4,6-trimethyl benzenesulfonate on micronutrient and elemental balance in Zea mays L. Under cadmium stress

Öz

This study explores the potential of Naphthalen-1-yl 2, 4, 6-trimethyl benzenesulfonate (NTB) in improving micronutrient efficiency and elemental status in Zea mays L. under cadmium (Cd) stress. Three-week-old maize seedlings were pre-treated with NTB (0.25 mM) and exposed to 100 µM Cd stress. The results demonstrate that NTB treatment significantly increased the accumulation of essential micronutrients, including zinc (Zn), iron (Fe), and copper (Cu), with values of 3.35 ± 0.7 mg kg⁻¹ DW for Zn, 5.94 ± 0.01 mg kg⁻¹ DW for Fe, and 1.17 ± 0.02 mg kg⁻¹ DW for Cu, compared to Cd stress alone. In contrast, manganese (Mn) content was reduced in the NTB + Cd treatment (9.93 ± 1.4 mg kg⁻¹ DW). Additionally, NTB treatment enhanced carbon (C) and hydrogen (H) contents, reaching 46.65 ± 0.3% and 6.02 ± 0.09%, respectively, while nitrogen (N) content decreased to 2.37 ± 0.3% under Cd stress. Despite this decrease in N, NTB effectively mitigated the negative effects of cadmium, highlighting its potential to improve nutrient uptake, optimize elemental balance, and enhance plant resilience under heavy metal stress.

Anahtar Kelimeler

• cadmium stress
• elemental status
• maize
• micronutrient

Kaynakça

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