Comparative physiological and metabolomic analyses reveal mechanisms of Aspergillus aculeatus-mediated abiotic stress tolerance in tall fescue
文献类型：期刊论文
| 作者 | Xie, Yan2; Sun, Xiaoyan3; Feng, Qijia2; Luo, Hongji1; Wassie, Misganaw2; Amee, Maurice2; Amombo, Erick2; Chen, Liang2 |
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2019-09-01 |
| 卷号 | 142页码:342-350 |
| 关键词 | Abiotic stress Aspergillus aculeatus Metabolomics Physiological Tall fescue |
| ISSN号 | 0981-9428 |
| DOI | 10.1016/j.plaphy.2019.07.022 |
| 英文摘要 | Aspergillus aculeatus has been shown to stimulate plant growth, but its role in plants abiotic stress tolerance and the underlying mechanisms are not fully documented. In this study, we investigated the mechanisms of A.aculeatus-mediated drought, heat and salt stress tolerance in tall fescue. The results showed that A.aculeatus inoculation improved drought and heat stress tolerance in tall fescue as observed from its effect on turf quality (TQ) and leaf relative water content (LWC). In the same stress conditions, A.aculeatus alleviated reactive oxygen species (ROS) induced burst and cell damage, as indicated by lower H2O2, electrolyte leakage (EL) and malondialdehyde (MDA) levels. Additionally, the A.aculeatus inoculated plants exhibited higher photosynthetic efficiency than uninoculated plants under drought, heat and salt stress conditions. The fungus reduced the uptake of Na+, and inoculated plants showed lower Na+/K+, Na+/Ca2+ and Na+/Mg2+ ratios compared to uninoculated ones under salt stress. Furthermore, comparative metabolomic analysis showed that A.aculeatus exclusively increased amino acid (such as proline and glycine) and sugar (such as glucose, fructose, sorbose, and talose) accumulation under drought and heat stress. However, there were no differences between inoculated and uninoculated plants except for changes in H2O2 level, Na+ in the root and photosynthetic efficiency under salt stress. Taken together, this study provides the first evidence of the protective roles of A.aculeatus in the tall fescue response to abiotic stresses, partially via protection of photosynthesis and modulation of metabolic homeostasis. |
| 资助项目 | National Natural Science Foundation of China[31772662] ; National Natural Science Foundation of China[31470363] |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000487569200036 |
| 出版者 | ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/8368]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Chen, Liang |
| 作者单位 | 1.Sichuan Changhong Green Environm Sci & Technol Co, Chengdu, Sichuan, Peoples R China 2.Chinese Acad Sci, Wuhan Bot Garden, CAS Key Lab Plant Gennplasm Enhancement & Special, Wuhan, Hubei, Peoples R China 3.Jiangxi Acad Sci, Inst Biol & Resource, Key Lab Hort Plant Genet & Improvement Jiangxi, Nanchang, Jiangxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Yan,Sun, Xiaoyan,Feng, Qijia,et al. Comparative physiological and metabolomic analyses reveal mechanisms of Aspergillus aculeatus-mediated abiotic stress tolerance in tall fescue[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2019,142:342-350. |
| APA | Xie, Yan.,Sun, Xiaoyan.,Feng, Qijia.,Luo, Hongji.,Wassie, Misganaw.,...&Chen, Liang.(2019).Comparative physiological and metabolomic analyses reveal mechanisms of Aspergillus aculeatus-mediated abiotic stress tolerance in tall fescue.PLANT PHYSIOLOGY AND BIOCHEMISTRY,142,342-350. |
| MLA | Xie, Yan,et al."Comparative physiological and metabolomic analyses reveal mechanisms of Aspergillus aculeatus-mediated abiotic stress tolerance in tall fescue".PLANT PHYSIOLOGY AND BIOCHEMISTRY 142(2019):342-350. |
入库方式： OAI收割
来源：武汉植物园
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