Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.1016/j.ecoenv.2020.110822 |
| Exogenous melatonin mitigates boron toxicity in wheat | |
| Al-Huqail, Asma A.; Khan, M. Nasir; Ali, Hayssam M.; Siddiqui, Manzer H.; Al-Huqail, Arwa A.; AlZuaibr, Fahad M.; Al-Muwayhi, Mohammed A.; Marraiki, Najat; Al-Humaid, L. A. | |
| 通讯作者 | Al-Huqail, AA ; Siddiqui, MH |
| 来源期刊 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| ISSN | 0147-6513 |
| EISSN | 1090-2414 |
| 出版年 | 2020 |
| 卷号 | 201 |
| 英文摘要 | Boron (B) toxicity is an important abiotic constraint that limits crop productivity mainly in arid and semi-arid areas of the world. High levels of B in soil disturbs several physiological and biochemical processes in plant. The aim of this study was to investigate the function of melatonin (Mel) in the regulation of carbohydrate and proline (Pro) metabolism, photosynthesis process and antioxidant system of wheat seedlings under B toxicity conditions. High levels of B inhibited net photosynthetic rate (P-N), stomatal conductance (g(s)), content of chlorophyll (Chl) a, b, delta-aminolevulinic acid (delta-ALA), nitrogen (N) and phosphorus (P), and increased accumulation of B, Chl degradation and activity of chlorophyllase (Chlase; a Chl degrading enzyme), and downregulated the activity of enzymes (delta-ALAD; delta-aminolevulinic acid dehydratase) involved in the biosynthesis of photosynthesis pigments, photosynthesis (carbonic anhydrase and ribulose-1,5-bisphosphate carboxylase/oxygenase) and carbohydrate metabolism (cell wall invertase, CWI) in wheat seedlings. Also, high levels of B caused oxidative damage by increasing the content of malondialdehyde, superoxide anion and H2O2, and activity of glycolate oxidase (an H2O2-producing enzyme) in leaves of seedlings. However, foliar application of Mel significantly improved photosynthetic pigments concentration by increasing delta-ALA, S-ALAD and decreasing Chl degradation and Chlase activity and led to an increase of plant growth attributes under both B toxicity and non-toxicity conditions. Under normal and B toxicity conditions, exogenous Mel also improved content of N, P, total soluble carbohydrates (TSCs) and Pro, and upregulated activity of CWI and Delta(1)-pyrroline-5-carboxylate synthetase. Mel significantly suppressed the adverse effects of excess B by alleviating cellular oxidative damage through enhanced reactive oxygen species scavenging by superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase and lipoxygenase, and content of total phenolic compounds (TPC), ascorbate and reduced glutathione. These results postulate that Mel induced plant defense mechanisms by enhancing Pro, TSCs, TPC, nutrients (N and P) uptake and enzymatic and non-enzymatic antioxidants. |
| 英文关键词 | Triticum aestivum Boron toxicity Melatonin Carbohydrate metabolism Total phenols Antioxidant enzyme |
| 类型 | Article |
| 语种 | 英语 |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000546898000050 |
| WOS关键词 | OVEREXPRESSING GLYCOLATE OXIDASE ; HYDROGEN-PEROXIDE ; OXIDATIVE STRESS ; BIOCHEMICAL PARAMETERS ; ENHANCES TOLERANCE ; TRITICUM-AESTIVUM ; MINERAL-NUTRITION ; SEEDLING GROWTH ; CELL-WALLS ; ACID |
| WOS类目 | Environmental Sciences ; Toxicology |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 来源机构 | King Saud University |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/324981 |
| 作者单位 | [Al-Huqail, Asma A.; Ali, Hayssam M.; Siddiqui, Manzer H.] King Saud Univ, Dept Bot & Microbiol, Coll Sci, Chair Climate Change Environm Dev & Vegetat Cover, Riyadh 11451, Saudi Arabia; [Khan, M. Nasir] Univ Tabuk, Dept Biol, Coll Haql, Fac Sci, Tabuk 71491, Saudi Arabia; [Al-Huqail, Arwa A.] Princess Nourah Bint Abdulrahman Univ, Dept Biol, Riyadh 133248824, Saudi Arabia; [AlZuaibr, Fahad M.] Univ Tabuk, Dept Biol, Fac Sci, Tabuk 71491, Saudi Arabia; [Al-Muwayhi, Mohammed A.] Shaqra Univ, Dept Phys & Chem, Fac Sci, Shaqra 11961, Saudi Arabia; [Marraiki, Najat; Al-Humaid, L. A.] King Saud Univ, Dept Bot & Microbiol, Coll Sci, Riyadh 2455, Saudi Arabia |
| 推荐引用方式 GB/T 7714 | Al-Huqail, Asma A.,Khan, M. Nasir,Ali, Hayssam M.,et al. Exogenous melatonin mitigates boron toxicity in wheat[J]. King Saud University,2020,201. |
| APA | Al-Huqail, Asma A..,Khan, M. Nasir.,Ali, Hayssam M..,Siddiqui, Manzer H..,Al-Huqail, Arwa A..,...&Al-Humaid, L. A..(2020).Exogenous melatonin mitigates boron toxicity in wheat.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,201. |
| MLA | Al-Huqail, Asma A.,et al."Exogenous melatonin mitigates boron toxicity in wheat".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 201(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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