Effects of foliar application of abscisic acid on antioxidant content, phytohormones in strawberry shoots, and translocation of various heavy metals
Küçük Resim Yok
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The exogenous use of plant hormones as a chemical-physical method may have a positive effect on improving the growth activity of plants under heavy metal stress. Therefore, the aim of this study was to understand how abscisic acid interacts with antioxidants and phytohormones to promote plant resistance to toxic metals and metalloids. The results indicated that the application of exogenous foliage ABA (mu mol L-1 40) limited the translocation of Cd, Cr, Hg and Sn into strawberry leaves by (63.32-10.08% for Cd, Cr), (15.39% for Hg), (4.76% for Sn). On the other hand, Pb, Ni and Se were found to accumulate in strawberry leaves but did not cause yield loss. Moreover, leaf antioxidant enzyme content and total chlorophyll content indicated a reduction in the negative effects of heavy metal stress on chlorophyll content and yield of strawberry leaves. On the other hand, phytohormones JA, SA, zeatin, CK, GA were suggested to play a role in attenuating the increased membrane lipid peroxidation responsible for cellular damage as they showed a positive correlation with MDA, H2O2, sucrose and Pro-levels corresponding to the high content of Cd, Cr, Hg and Sn in the control leaves. The results provided in this study suggest that exogenous ABA is effective in reducing uptake of Cd, Cr and Hg in strawberries, and it may be considered as a good indicator for safer food production on contaminated farmland.
Açıklama
Anahtar Kelimeler
Phytohormones, Abscisic acid, Heavy metal, Antioxidant, Translocation
Kaynak
Scientia Horticulturae
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
314
