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YANG Bo, WANG Shaojun, ZHAO Shuang, ZHANG Lulu, ZHANG Kunfeng, FAN Yuxiang, XIE Lingling, WANG Zhengjun, GUO Zhipeng, XIAO Bo. Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210740
Citation: YANG Bo, WANG Shaojun, ZHAO Shuang, ZHANG Lulu, ZHANG Kunfeng, FAN Yuxiang, XIE Lingling, WANG Zhengjun, GUO Zhipeng, XIAO Bo. Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210740

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Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats

doi: 10.11833/j.issn.2095-0756.20210740
  • Received Date: 2021-11-10
  • Accepted Date: 2022-04-06
  • Rev Recd Date: 2022-03-15
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats

doi: 10.11833/j.issn.2095-0756.20210740

Abstract:   Objective  This study aims to explore the effects of arbuscular mycorrhizal (AM) fungal symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats, so as to provide data reference for selecting dominant AM fungal species for vegetation restoration.   Method  An experiment was designed with four treatments: Funneliformis mosseae+agroforestry biofertilizer (MN), Claroideoglomus etunicatum+agroforestry biofertilizer (YN), Rhizophagus intraradices+agroforestry biofertilizer (GN) and agroforestry biofertilizer (ck). The changes in F. malacophylla growth (tree height, diameter at breast height, leaf and root biomass, leaf area, leaf pigment and chlorophyll) and photosynthetic characteristics (net photosynthetic rate, stomatal conductance, intercellular CO2 concentration, transpiration rate, and leaf water use efficiency, etc.) were measured under different treatments.   Result  (1) Inoculation with AM fungi significantly promoted the growth of F. malacophylla and biomass accumulation of leaf and root(P<0.05). (2) Inoculation with MN and GN significantly increased the relative contents of chlorophyll a, chlorophyll b and lutein in plant leaves (P<0.05), and the increase rate was 6%−67%. (3) Inoculation with AM fungi significantly increased the net photosynthetic rate, stomatal conductance, transpiration rate, and water use efficiency of F. malacophylla (P<0.05), but significantly decreased the intercellular CO2 concentration (P<0.05). (4) Principal component analysis indicated that the stomatal conductance, tree height, and lutein were the key factors to increase the net photosynthetic rate, with an average contribution rate of 45.81%, followed by chlorophyll b, biomass and total chlorophyll.   Conclusion  AM fungal symbiosis can significantly improve the net photosynthetic rate of F. malacophylla by promoting plant growth and photosynthetic pigment content. The optimal strain is F. mosseae. [Ch, 5 fig. 2 tab. 33 ref.]

YANG Bo, WANG Shaojun, ZHAO Shuang, ZHANG Lulu, ZHANG Kunfeng, FAN Yuxiang, XIE Lingling, WANG Zhengjun, GUO Zhipeng, XIAO Bo. Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210740
Citation: YANG Bo, WANG Shaojun, ZHAO Shuang, ZHANG Lulu, ZHANG Kunfeng, FAN Yuxiang, XIE Lingling, WANG Zhengjun, GUO Zhipeng, XIAO Bo. Effects of arbuscular mycorrhizal fungi symbiosis on growth and photosynthetic characteristics of Fraxinus malacophylla in rocky desertification habitats[J]. Journal of Zhejiang A&F University. doi: 10.11833/j.issn.2095-0756.20210740
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