Ecophysiological differences between five mangrove seedlings under heavy metal stress
Ecophysiological differences between five mangrove seedlings under heavy metal stress
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重金属胁迫下5种红树幼苗的生态生理差异
DOI：
10.1016/j.marpolbul.2021.112900
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发表时间：
2021
影响因子：
5.8
通讯作者：
Inyang Aniefiok Ini
中科院分区：
文献类型：
--
作者：
Zhou Y.Y.;Wang Y.S.;Inyang Aniefiok Ini
研究了重金属胁迫对5种红树林植物叶片超氧化物歧化酶（SOD）、过氧化物酶（POD）、过氧化氢酶（CAT）和脂质过氧化（MDA）抗氧化活性的影响。结果表明，B.木榄（7.55 mg prot /mL：Cu ~（2+））、K. obovata（11.21 mg prot/mL：Cd ~（2+））和R.红海榄（12.51 mg prot/mL：Cd ~（2+））（p < 0.05）。而A.在相同条件下，海地瓜的生长量显著高于其它品种（p < 0.05）。SOD、POD和CAT在A. marina，A.角状体和B.相同重金属处理下，裸子菜与对照组相比差异显著（p < 0.05）。主成分分析表明，POD、SOD和MDA是5种红树林对重金属胁迫的主要响应指标。A. marina对重金属胁迫的耐受性较强。
It was studied for the effects of heavy metal stress on the antioxidant activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) and lipid peroxidation (MDA) in the leaves of five mangrove plants. The results showed the protein concentrations were significantly higher inB. gymnorrhiza(7.55 mg prot /mL: Cu2+),K. obovata(11.21 mg prot/mL: Cd2+) andR. stylosa(12.51 mg prot/mL: Cd2+) (p < 0.05). Comparably, MDA contents were remarkably high inA. marinathan other species under the same conditions (p < 0.05). The SOD, POD and CAT were observed to be significantly high inA. marina,A. corniculatumandB. gymnorrhizaunder the same heavy metal treatment (p < 0.05). The PCA revealed that POD, SOD and MDA of five mangrove species were the major indices for response to heavy metal. AndA. marinawas more tolerant to heavy metal stress than others.