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Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (7): 55-63.doi: 10.11924/j.issn.1000-6850.casb2022-0199

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Research of AMF on the Growth and Development of Ornamental Plants

HUANG Wenjing1(), YANG Shuhua2, GE Hong2, KOU Yaping2, ZHAO Xin2, JIA Ruidong2(), CHEN Jiren3()   

  1. 1 College of Landscape Architecture and Art Design, Hunan Agricultural University, Changsha 410128
    2 Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences/ Key Laboratory of Biology and Genetic Improvement of Flower Crops (North China), Ministry of Agriculture and Rural Affairs, Beijing 100081
    3 College of Horticulture, Hunan Agricultural University/ Hunan Mid-Subtropical Quality Plant Breeding and Utilization Engineering Technology Research Center, Changsha 410128
  • Received:2022-03-24 Revised:2022-08-13 Online:2023-03-05 Published:2023-03-15

Abstract:

In this paper, the effects of arbuscular mycorrhizal fungi (AMF) on the growth and development of ornamental plants are summarized from four aspects: plant nutrient transport, apparent morphology, photosynthesis and abiotic stress resistance. The analysis shows that AMF promote the accumulation of nutrient elements in ornamental plants by regulating the expression of nutrient transport genes and increasing the nutrient uptake area of ornamental plants, thus improving plant nutrient absorption. By improving the chlorophyll content and photosynthetic enzyme activity in plants, the carbon fixation ability and source-library relationship of plants are improved, thereby enhancing the photosynthetic efficiency of plants. By regulating the activity of osmotic regulatory substances, antioxidants and other enzymes, the plant drought resistance, salt resistance and high temperature resistance are improved. This paper proposes that AMF should be further explored for the participation in the regulation of potassium ions, the regulation of chlorophyll fluorescence, and the regulation of stress-related transcription factors (such as GRAS family, AP2/ERF family and MYB family), so as to study the symbiotic mechanism of AMF.

Key words: arbuscular mycorrhizal fungi, ornamental plant, growth and development, nutrient transport, photosynthesis, abiotic stress