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Effect of Inoculating the Root System of Plants with Endophyte Cylindrocarpon magnusianum on Plant Performance When Exposed to Heavy Metal Salts
Russian Agricultural Sciences Pub Date : 2021-04-12 , DOI: 10.3103/s1068367421010067
I. L. Bukharina , N. A. Islamova , M. A. Lebedeva

Abstract

The effect of inoculation with endotrophic micromycete Cylindrocarpon magnusianum on the physiological and biochemical parameters of test tomato plants when exposed to heavy metal salts was studied. The experimental scheme included inoculation with a fungal culture (control population) and with populations of this fungus that were previously adapted to this stress factor. The inoculated plants were then grown under control conditions and on substrates with different concentrations of heavy metal salts (zinc, copper, lead, and chromium). No stimulating effect that increases the resistance of plants to heavy metal salts after inoculation of plants by the control population of the fungus C. magnusianum was detected. When using nonbiogenic chemical elements, adaptive plant responses associated with the content of photosynthetic pigments in leaves and the formation of plant biomass were significantly expressed when plants were inoculated with adapted fungal populations of C. magnusianum and when they were further cultivated on substrates introduced with chromium and lead salts. Under these conditions, the fungal infection in plant roots was more intense compared to the use of the control population of the fungus. These facts indicate the more efficient partnership of the fungus C. magnusianum and the root system of plants under conditions that are extreme for plant life.



中文翻译:

暴露于重金属盐下的内生cylindrocarpon magnusianum接种植物根系对植物性能的影响

摘要

研究了内生微菌丝状麦芽孢接种重金属盐后对试验番茄植株生理生化参数的影响。实验方案包括接种真菌培养物(对照种群)和以前适应这种胁迫因素的真菌种群。然后将接种的植物在对照条件下和含有不同浓度重金属盐(锌,铜,铅和铬)的底物上生长。没有刺激作用,可增加真菌对虾(C. magnusianum)的对照种群接种植物后植物对重金属盐的抗性被检测到。当使用非生物化学元素时,当植物接种适应性大核梭菌真菌种群并在引入铬的基质上进一步培养时,与叶片中光合色素含量和植物生物量形成相关的适应性植物应答会显着表达和铅盐。在这些条件下,与使用真菌的对照种群相比,植物根部的真菌感染更为严重。这些事实表明,在极端植物生命的条件下,马鞭草C. magnusianum和植物根系之间的更有效的伙伴关系。

更新日期:2021-04-13
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