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Global metabolic changes induced by arbuscular mycorrhizal fungi in oregano plants grown under ambient and elevated levels of atmospheric CO2.
Plant Physiology and Biochemistry ( IF 6.1 ) Pub Date : 2020-03-21 , DOI: 10.1016/j.plaphy.2020.03.026 Ahmed M Saleh 1 , Mohamed Abdel-Mawgoud 2 , Ahmed R Hassan 2 , Talaat H Habeeb 3 , Ramy S Yehia 4 , Hamada AbdElgawad 5
Plant Physiology and Biochemistry ( IF 6.1 ) Pub Date : 2020-03-21 , DOI: 10.1016/j.plaphy.2020.03.026 Ahmed M Saleh 1 , Mohamed Abdel-Mawgoud 2 , Ahmed R Hassan 2 , Talaat H Habeeb 3 , Ramy S Yehia 4 , Hamada AbdElgawad 5
Affiliation
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Symbiotic plant-microorganisms interaction is a promising approach to avoid the environmental hazards of synthetic fertilizers and pesticides. Among these, arbuscular mycorrhizal fungi (AMF) are known to improve the growth and quality of many plant species; however the detailed metabolic mechanisms behind such beneficial effects are far from complete. Further, elevated levels of atmospheric CO2 (eCO2) could affect such AMF-plant association. Herein, we have investigated the individual and synchronous impact of AMF and eCO2 (620 ppm) on nutrient uptake, growth, photosynthesis, respiration, and levels of primary and secondary metabolites in oregano (Oreganum vulgare), an economically important herbal plant. Enhanced AMF colonization rate and a better mycelial growth were observed in roots of oregano grown under eCO2. Both AMF and eCO2 treatments significantly enhanced the growth and photosynthesis of oregano plants, however much improvements were observed by their synchronous application. eCO2 further increased the AMF-induced dark respiration and accumulation of macro and microelements. Hierarchical clustering analysis of individual primary and secondary metabolites revealed a metabolite-dependent response toward AMF and eCO2. The synchronous application of AMF and eCO2 resulted in promoted accumulation of the majority of the detected sugars, organic acids, amino acids, unsaturated fatty acids, phenolic acids and flavonoids, as compared with the sole treatments. Moreover, AMF and eCO2 acted synergistically in improving the antioxidant capacity and anti-lipid peroxidation activity of oregano. Therefore, this study suggests that AMF treatment induces a global metabolic change in oregano, the effect that is strengthened under eCO2.
中文翻译：
在环境和大气CO2浓度升高的条件下生长的牛至植物中，丛枝菌根真菌引起的整体代谢变化。
植物与微生物之间的共生相互作用是避免合成肥料和农药对环境造成危害的一种有前途的方法。其中，丛枝菌根真菌（AMF）可以改善许多植物的生长和质量。然而，这种有益作用背后的详细代谢机制还远远不够。此外，升高的大气CO2（eCO2）水平可能会影响这种AMF与植物的结合。在本文中，我们研究了牛至和经济型草本植物牛至（Oreganum vulgare）中AMF和eCO2（620 ppm）对养分吸收，生长，光合作用，呼吸以及一级和二级代谢产物水平的个体和同步影响。在eCO2下生长的牛至根中，观察到了提高的AMF定殖率和更好的菌丝生长。AMF和eCO2处理均能显着提高牛至植物的生长和光合作用，但同时施用可观察到许多改进。eCO2进一步增加了AMF诱导的黑暗呼吸以及大量和微量元素的积累。各个主要代谢物和次要代谢物的分层聚类分析显示，代谢物对AMF和eCO2的依赖性。与单独处理相比，AMF和eCO2的同步应用导致大多数检测到的糖，有机酸，氨基酸，不饱和脂肪酸，酚酸和类黄酮的积累得到促进。此外，AMF和eCO2在提高牛至的抗氧化能力和抗脂质过氧化活性方面具有协同作用。因此，
更新日期：2020-03-22
中文翻译：
在环境和大气CO2浓度升高的条件下生长的牛至植物中，丛枝菌根真菌引起的整体代谢变化。
植物与微生物之间的共生相互作用是避免合成肥料和农药对环境造成危害的一种有前途的方法。其中，丛枝菌根真菌（AMF）可以改善许多植物的生长和质量。然而，这种有益作用背后的详细代谢机制还远远不够。此外，升高的大气CO2（eCO2）水平可能会影响这种AMF与植物的结合。在本文中，我们研究了牛至和经济型草本植物牛至（Oreganum vulgare）中AMF和eCO2（620 ppm）对养分吸收，生长，光合作用，呼吸以及一级和二级代谢产物水平的个体和同步影响。在eCO2下生长的牛至根中，观察到了提高的AMF定殖率和更好的菌丝生长。AMF和eCO2处理均能显着提高牛至植物的生长和光合作用，但同时施用可观察到许多改进。eCO2进一步增加了AMF诱导的黑暗呼吸以及大量和微量元素的积累。各个主要代谢物和次要代谢物的分层聚类分析显示，代谢物对AMF和eCO2的依赖性。与单独处理相比，AMF和eCO2的同步应用导致大多数检测到的糖，有机酸，氨基酸，不饱和脂肪酸，酚酸和类黄酮的积累得到促进。此外，AMF和eCO2在提高牛至的抗氧化能力和抗脂质过氧化活性方面具有协同作用。因此，
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