Overexpression of CcFALDH from spider plant (Chlorophytum comosum) enhances the formaldehyde removing capacity of transgenic gloxinia (Sinningia speciosa)
文献类型： 外文期刊
作者： Qiao, Sheng 1 ; Song, Lili 1 ; Li, Siyu 1 ; Liu, Lei 1 ; Cai, Hongsheng 1 ; Si, Liang 1 ; Guo, Changhong 1 ;
作者机构： 1.Harbin Normal Univ, Coll Life Sci & Technol, Key Lab Mol Cytogenet & Genet Breeding Heilongjian, Harbin 150025, Peoples R China
2.Shanghai Acad Agr Sci, Biotechnol Res Inst, Supervis & Test Ctr Ecol Environm Safety Crops MOA, Shanghai Key Lab Agr Genet & Breeding, Shanghai 201106, Peoples R China
关键词： Indoor air pollution; Flowering plant; Formaldehyde metabolism; Transgenic gloxinia
期刊名称：ENVIRONMENTAL RESEARCH （ 影响因子：8.3； 五年影响因子：8.2 ）
ISSN： 0013-9351
年卷期： 2023 年 223 卷
页码：
收录情况： SCI
摘要： Formaldehyde can cause leukemia and nasopharyngeal cancer in humans, and is a major indoor air pollutant. In this study, to improve the ability of flowering plants to purify formaldehyde, we cloned the CcFALDH gene encoding formaldehyde dehydrogenase (FALDH) from the spider plant (Chlorophytum comosum), which encodes 379 amino acids with the alcohol dehydrogenase (ADH) structural domain, and used it to transform the flow-ering plant gloxinia (Sinningia speciosa). The FALDH activity of transgenic gloxinia was 1.8-2.7 times that of wild-type (WT) with a considerable increase in formaldehyde stress tolerance. The activities of the antioxidant en-zymes SOD, POD, and CAT of transgenic gloxinia were 1.5-2.0 times those of the WT under formaldehyde stress; H2O2, O2-, and MDA contents were markedly lower than those in WT. Liquid formaldehyde and gaseous formaldehyde were metabolized at 2.1-2.8 and 2.1-2.7 times higher rates in transgenic gloxinia than in WT. Our findings indicate that overexpression of CcFALDH can enhance the capacity of flowering plants to metabolize formaldehyde, which provides a new strategy to tackle the indoor formaldehyde pollution problem.
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