Inoculating chlamydospores of Trichoderma asperellum SM-12F1 changes arsenic availability and enzyme activity in soils and improves water spinach growth
文献类型：期刊论文
| 作者 | Su, SM; Zeng, XB; Bai, LY; Williams, PN; Wang, YN; Zhang, LL; Wu, CX |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017 |
| 卷号 | 175页码:497-504 |
| 关键词 | Fungi Arsenic Water Spinach Soil Enzyme Speciation Xanes |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2017.02.048 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Arsenic (As)-contaminated agricultural soils threaten crop yields and pose a human health risk. Augmentation of exogenous microorganisms exhibiting plant-growth promoting and As speciation changing shows potential to improve crop growth and change soil As availability. Trichoderma asperellum SM-12F1 exhibiting both traits was developed into chlamydospores to improve its persistence in contaminated soils. After inoculation, As availability and enzyme activity in two types of soils and the growth as well as As uptake of water spinach (Ipomoea aquatic Forsk.) were investigated. The results indicated that inoculation significantly improved water spinach growth in both soils. Inoculating chlamydospores at 5% significantly increased As concentration (139%), bioconcentration factor (150%), and translocation factor (150%) in water spinach grown in Chenzhou (CZ) soils, while no significant change for these in Shimen (SM) soils. Inoculating chlamydospores at 5% caused a significant increase (16%) of available As content in CZ soils, while a significant decrease (13%) in SM soils. Inoculation significantly caused As methylation in both soils, while significant As reduction merely observed in CZ soils. The differential changes in available As contents in both soils were attributed to the soil pH, As fractionations and speciation characteristics. Furthermore, Inoculating chlamydospores at 5% significantly improved the activities of beta-glucosidase (155%), chitinase (211%), and phosphatase (108%) in SM soils, while significant decreases in beta-glucosidase (81%), phosphatase (54%), aminopeptidase (60%), and catalase (67%) in CZ soils. Bioaugmentation and As availability change were responsible for this result. These observations will be helpful for the application of fungal chlamydospores in the future bioremediation. (C) 2017 Published by Elsevier Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000397691200059 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/27353]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Su, SM,Zeng, XB,Bai, LY,et al. Inoculating chlamydospores of Trichoderma asperellum SM-12F1 changes arsenic availability and enzyme activity in soils and improves water spinach growth[J]. CHEMOSPHERE,2017,175:497-504. |
| APA | Su, SM.,Zeng, XB.,Bai, LY.,Williams, PN.,Wang, YN.,...&Wu, CX.(2017).Inoculating chlamydospores of Trichoderma asperellum SM-12F1 changes arsenic availability and enzyme activity in soils and improves water spinach growth.CHEMOSPHERE,175,497-504. |
| MLA | Su, SM,et al."Inoculating chlamydospores of Trichoderma asperellum SM-12F1 changes arsenic availability and enzyme activity in soils and improves water spinach growth".CHEMOSPHERE 175(2017):497-504. |
入库方式： OAI收割
来源：上海应用物理研究所
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