Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently
Drought stress is one of the greatest obstacles affecting field crop productivity in arid and semi-arid regions, and its severity and frequency are expected to increase due to human-induced changes to the environment and climate. Drought has led to rocky desertification in Karst regions. <i>Ci...
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MDPI AG
2022-01-01
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| author | Xuefeng Xiao Jingzhong Chen Xiaofeng Liao Qiuxiao Yan Gelin Liang Jiming Liu Deng Wang Ruiting Guan |
| author_facet | Xuefeng Xiao Jingzhong Chen Xiaofeng Liao Qiuxiao Yan Gelin Liang Jiming Liu Deng Wang Ruiting Guan |
| author_sort | Xuefeng Xiao |
| collection | DOAJ |
| description | Drought stress is one of the greatest obstacles affecting field crop productivity in arid and semi-arid regions, and its severity and frequency are expected to increase due to human-induced changes to the environment and climate. Drought has led to rocky desertification in Karst regions. <i>Cinnamomum migao</i> is a unique, fast-growing medicinal plant of Southwest China that only thrives in Karst regions. Arbuscular mycorrhizal fungi (AMF) symbiosis alleviates drought stress in plants; however, establishment and function of the symbiotic interaction between AMF host plant in relation to the inoculation method remain unclear. Therefore, we conducted an experiment to investigate the effects of AMF species (<i>Glomus etunicatum</i> and <i>Funneliformis mosseae</i>) and two inoculation methods (seed vs. seedling inoculation) under drought stress on <i>C. migao</i> seedlings, and quantified mycorrhizal colonization, AMF spore density, root vigor, relative water content, <i>C. migao</i> growth, antioxidant enzyme activities, and osmotic adjustment. Inoculation with AMF (<i>G. etunicatum</i> and <i>F. mosseae</i>) positively affected the growth and root vigor of <i>Cinnamomum migao</i> under drought stress, regardless of the inoculation method. Additionally, both AMF species markedly upregulated antioxidant enzyme activities and osmotic adjustment substances, regardless of the inoculation method. Our results showed that the collective stimulatory effect of <i>G. etunicatum</i> is more efficient than that of <i>F. mosseae</i>. AMF application could promote afforestation with <i>C. migao</i> to prevent rocky desertification in Karst regions where water is the greatest limiting factor on plant growth and yield. |
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| spelling | doaj.art-843054f48b17455eafce0cba37f4e3372023-11-23T18:49:53ZengMDPI AGBiology2079-77372022-01-0111222010.3390/biology11020220Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings DifferentlyXuefeng Xiao0Jingzhong Chen1Xiaofeng Liao2Qiuxiao Yan3Gelin Liang4Jiming Liu5Deng Wang6Ruiting Guan7Forestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaInstitute of Mountain Resources, Guizhou Academy of Science, Guiyang 550001, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaForestry College, Research Center of Forest Ecology, Guizhou University, Guiyang 550025, ChinaDrought stress is one of the greatest obstacles affecting field crop productivity in arid and semi-arid regions, and its severity and frequency are expected to increase due to human-induced changes to the environment and climate. Drought has led to rocky desertification in Karst regions. <i>Cinnamomum migao</i> is a unique, fast-growing medicinal plant of Southwest China that only thrives in Karst regions. Arbuscular mycorrhizal fungi (AMF) symbiosis alleviates drought stress in plants; however, establishment and function of the symbiotic interaction between AMF host plant in relation to the inoculation method remain unclear. Therefore, we conducted an experiment to investigate the effects of AMF species (<i>Glomus etunicatum</i> and <i>Funneliformis mosseae</i>) and two inoculation methods (seed vs. seedling inoculation) under drought stress on <i>C. migao</i> seedlings, and quantified mycorrhizal colonization, AMF spore density, root vigor, relative water content, <i>C. migao</i> growth, antioxidant enzyme activities, and osmotic adjustment. Inoculation with AMF (<i>G. etunicatum</i> and <i>F. mosseae</i>) positively affected the growth and root vigor of <i>Cinnamomum migao</i> under drought stress, regardless of the inoculation method. Additionally, both AMF species markedly upregulated antioxidant enzyme activities and osmotic adjustment substances, regardless of the inoculation method. Our results showed that the collective stimulatory effect of <i>G. etunicatum</i> is more efficient than that of <i>F. mosseae</i>. AMF application could promote afforestation with <i>C. migao</i> to prevent rocky desertification in Karst regions where water is the greatest limiting factor on plant growth and yield.https://www.mdpi.com/2079-7737/11/2/220AMFafforestationantioxidant enzyme<i>Cinnamomum migao</i>climate changedrought stress |
| spellingShingle | Xuefeng Xiao Jingzhong Chen Xiaofeng Liao Qiuxiao Yan Gelin Liang Jiming Liu Deng Wang Ruiting Guan Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently Biology AMF afforestation antioxidant enzyme <i>Cinnamomum migao</i> climate change drought stress |
| title | Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently |
| title_full | Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently |
| title_fullStr | Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently |
| title_full_unstemmed | Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently |
| title_short | Different Arbuscular Mycorrhizal Fungi Established by Two Inoculation Methods Improve Growth and Drought Resistance of Cinnamomum Migao Seedlings Differently |
| title_sort | different arbuscular mycorrhizal fungi established by two inoculation methods improve growth and drought resistance of cinnamomum migao seedlings differently |
| topic | AMF afforestation antioxidant enzyme <i>Cinnamomum migao</i> climate change drought stress |
| url | https://www.mdpi.com/2079-7737/11/2/220 |
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