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| Effects of Piriformospora indica on the growth, Cd uptake and accumulation in Sorghum Hybrid Sudangrass |
| Received:December 07, 2021 |
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| KeyWord:Piriformospora indica;Sorghum Hybrid Sudangrass;Cd stress;resistance physiology;transfer coefficient |
| Author Name | Affiliation | E-mail | | XIAN Lulu | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | | | DONG Zhi | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | | | LI Hongli | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | lhl@sdau.edu.cn | | DOU Xiaohui | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | | | LIU Chao | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | | | LIU Bingqian | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | | | JIA Fengyuan | Forestry College of Shandong Agricultural University/Taishan Forest Ecosystem Positioning Research Station, Tai'an 271018, China | |
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| Abstract: |
| To explore the effect of plant and microbial joint restoration on cadmium(Cd)content, the annual herb Sorghum Hybrid Sudangrass was used as the experimental material. The effects of Piriformospora indica at different Cd concentrations(0, 5, 10, 30, 50, 100 mg · L-1)on the growth and physiological characteristics of Sorghum Hybrid Sudangrass were investigated along with the transport, enrichment, and distribution characteristics of Cd in Sorghum Hybrid Sudangrass. The results showed that at low Cd concentration of 5 mg· L-1, the plant height, number of leaves, and biomass increased to a certain extent. With further increase in concentration, the plant height, number of leaves, and biomass of the plant decreased; number of yellow leaves increased; and the growth was inhibited. After inoculation with Piriformospora indica, accumulation of biomass of Sorghum Hybrid Sudangrass increased, the yellowing of leaves alleviated, and the growth condition improved. Moreover, bacteria inoculation improved the physiological indices of the resistance of Sorghum Hybrid Sudangrass against Cd stress. With concentration increasing, the activities of soluble sugar, soluble protein, malondialdehyde, superoxide dismutase, and catalase in the non-inoculated group of Sorghum Hybrid Sudangrass gradually increased, whereas the peroxidase activity gradually decreased. Inoculation increased the contents of soluble protein, soluble sugar, and malondialdehyde, and reduced enzymatic activity. Under different Cd concentrations, the Cd content in Sorghum Hybrid Sudangrass showed the following distribution:root>leaf> stem. With concentration increasing, the Cd content increased; inoculation reduced the transfer of Cd from underground part to the aboveground part, and alleviated the toxicity of Cd in the upper part of the plant. This study shows that Piriformospora indica can effectively reduce the toxic damage and inhibitory effect of Cd on the growth of Sorghum Hybrid Sudangrass. |
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