Department of Food and Chemical Engineering, Santa Catarina State University, BR 282, Km 574, Pinhalzinho, SC, 89870-000, Brazil.
Bull Environ Contam Toxicol. 2020 Sep;105(3):405-410. doi: 10.1007/s00128-020-02960-4. Epub 2020 Aug 10.
The accumulation of zinc (Zn) in Cichorium intybus and effects of phytotoxicity during 90 days of growth on (natural) non-contaminated and Zn-contaminated soils were studied. The phytotoxicity effects were monitored by evaluating the leaf area, leaf biomass, leaf length and root length of the vegetable. The Zn concentrations ranged from 5.35 ± 1.05 to 37.5 ± 3.89 mg kg in leaves of plants grown on natural soil, and from 334.0 ± 25.6 to 2232 ± 16.7 mg kg when grown on Zn-contaminated soils. Zn accumulation caused a decrease in growth on contaminated soils and an increase in phytotoxicity. These effects were associated to high metal concentration, mobility and bioavailability in the soil as well as changes in the translocation mechanism from the roots to the leaves. Then, it must be avoided the organic fertilization of soils with either animal manure or other agricultural inputs containing high zinc concentrations.
研究了菊苣（Cichorium intybus）中锌（Zn）的积累以及在 90 天生长过程中对（天然）未污染和 Zn 污染土壤的植物毒性的影响。通过评估蔬菜的叶面积、叶生物量、叶长和根长来监测植物毒性的影响。在生长于天然土壤的植物叶片中，Zn 浓度范围为 5.35 ± 1.05 至 37.5 ± 3.89 mg kg，而在 Zn 污染土壤中生长时，Zn 浓度范围为 334.0 ± 25.6 至 2232 ± 16.7 mg kg。Zn 的积累导致在污染土壤上的生长减少和植物毒性增加。这些影响与土壤中高浓度金属、迁移性和生物有效性以及从根部向叶片转移机制的变化有关。因此，必须避免使用含有高浓度锌的动物粪便或其他农业投入物对土壤进行有机施肥。
