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Isolation and Molecular Characterization of Plant-Growth-Promoting Bacteria and Their Effect on Eggplant ( Solanum melongena ) Growth

Author

Listed:
  • Xuqing Li

    (Hangzhou Academy of Agricultural Science, Hangzhou 310024, China)

  • Jianli Yan

    (Hangzhou Academy of Agricultural Science, Hangzhou 310024, China)

  • Dingyi Li

    (Department of Biological Environment, Material and Environmental College, Shanxi Jinzhong Institute of Technology, Jinzhong 030600, China)

  • Yugen Jiang

    (Agricultural Technology Extension Center of Fuyang District, Hangzhou 311400, China)

  • Ya Zhang

    (Hangzhou Academy of Agricultural Science, Hangzhou 310024, China)

  • Hong Wang

    (Hangzhou Academy of Agricultural Science, Hangzhou 310024, China)

  • Jingze Zhang

    (Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China)

  • Temoor Ahmed

    (Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China)

  • Bin Li

    (Institute of Biotechnology, Zhejiang University, Hangzhou 310058, China)

Abstract

In recent years, the optimum development of land resources has become an important task for ensuring the security of food production in China. Soil microorganisms have been considered to play an important role in conferring soil fertility and productivity. In order to obtain the plant-growth-promoting bacteria in newly reclaimed land, a total of 988 bacterial strains were isolated from nine soil samples collected from different sites in wastelands in Hangzhou (Zhejiang Province, China), a rural mountainous area. Among them, five strains exhibited substantial potential of phosphate solubilization, nitrogen fixation, siderophore production and indole acetic acid production at both pH 5.0 and pH 7.0, and also promoted eggplant growth in immature soil from newly reclaimed land. Furthermore, bacterial strains ZJ62 and ZJ3-12 were identified as Pantoea dispersa and Pantoea ananatis , respectively, while strains ZJ5, ZJ9 and ZJ174 were identified as Burkholderia arboris , Burkholderia pyrrocinia and Burkholderia pyrrocinia , respectively, based on colony morphology observation and phylogenetic analysis of 16S rDNA and the housekeeping genes sequences. Overall, the result of this study showed that the 5 obtained bacterial strains have a great potential in promoting plant growth in immature soil from newly reclaimed land.

Suggested Citation

  • Xuqing Li & Jianli Yan & Dingyi Li & Yugen Jiang & Ya Zhang & Hong Wang & Jingze Zhang & Temoor Ahmed & Bin Li, 2021. "Isolation and Molecular Characterization of Plant-Growth-Promoting Bacteria and Their Effect on Eggplant ( Solanum melongena ) Growth," Agriculture, MDPI, vol. 11(12), pages 1-16, December.
    • Handle: RePEc:gam:jagris:v:11:y:2021:i:12:p:1258-:d:700710
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    References listed on IDEAS

    as
    1. Iman Sabah Abd Alamer & Ali Athafah Tomah & Bin Li & Jing-Ze Zhang, 2020. "Isolation, Identification and Characterization of Rhizobacteria Strains for Biological Control of Bacterial Wilt ( Ralstonia solanacearum ) of Eggplant in China," Agriculture, MDPI, vol. 10(2), pages 1-16, February.
    2. Xuqing Li & Yao Su & Temoor Ahmed & Haiying Ren & Muhammad Rizwan Javed & Yanlai Yao & Qianli An & Jianli Yan & Bin Li, 2021. "Effects of Different Organic Fertilizers on Improving Soil from Newly Reclaimed Land to Crop Soil," Agriculture, MDPI, vol. 11(6), pages 1-15, June.
    3. Anirban Basu & Priyanka Prasad & Subha Narayan Das & Sadaf Kalam & R. Z. Sayyed & M. S. Reddy & Hesham El Enshasy, 2021. "Plant Growth Promoting Rhizobacteria (PGPR) as Green Bioinoculants: Recent Developments, Constraints, and Prospects," Sustainability, MDPI, vol. 13(3), pages 1-20, January.
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