Welcome to Chinese Journal of Applied Ecology! Today is Share:

Chinese Journal of Applied Ecology ›› 2019, Vol. 30 ›› Issue (11): 3951-3962.doi: 10.13287/j.1001-9332.201911.040

• Reviews • Previous Articles     Next Articles

Research progress of root exudates collection technology

GUO Wan-ji1,2, ZHANG Zi-liang1,2,3, LIU Qing1, YIN Hua-jun1*   

  1. 1Chengdu Institute of Biology, Chinese Academy of Sciences, Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization of Chinese Academy of Sciences, Sichuan Province Key Laboratory of Ecological Restoration and Biodiversity Conservation, Chengdu 610041, China;
    2University of Chinese Academy of Sciences, Beijing 100049, China;
    3Clemson University, Clemson 29670, South Carolina, USA
  • Received:2019-01-09 Online:2019-11-15 Published:2019-11-15
  • Contact: * E-mail: yinhj@cib.ac.cn
  • Supported by:

    This work was supported by the Key Research Project of Frontier Science of Chinese Academy of Sciences (QYZDB-SSW-SMC023), National Natural Science Foundation of China (31670449, 31872700) and Key Research and Development Project of Sichuan Province (Y8D204110)

PDF (PC)

716

Abstract: Root exudates play an important role in mediating the exchange of substrates, energy and information within the rhizosphere in terrestrial ecosystems. Constructing accurate and applicable sampling system of root exudates to precisely collect the characters including the component and concentration of root exudates and their responses to changing environments are a critical link and prerequisite to understand ecological processes and information exchanges across the root-soil interface. While both traditional and novel techniques for collecting root exudates aim to explore the diversity and concentration of root exudates, current exudate-collection methods could hardly avoid the damage of root system, the adsorption and release of root exudates by soil particles, and distur-bance from microbial metabolism, largely because plant roots are highly associated with the surrounding substrates and environments supporting their growth. Therefore, all root exudate collection methods have their own merits and shortcomings. We systematically reviewed the widely-used traditional and novel root exudates collection techniques and compared their advantages and disadvantages. Furthermore, considering the significance and authenticity of field study on the rhizosphere ecological processes in forest ecosystems, we proposed three frontier research directions regarding the construction of techniques for collecting root exudates in forest ecosystems according to the limits of current studies, aiming to provide foundation for related studies in the future.