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Therapeutic Methods and Therapies TCIM
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World J Microbiol Biotechnol ; 38(1): 15, 2021 Dec 08.
Article in English | MEDLINE | ID: mdl-34878606

ABSTRACT

Pairs polyphylla var. yunnanensis (Paris L.) is a valuable medicinal plant used in traditional Chinese medicine. The market demand for P. polyphylla has increased over time, but it has slow growth and a low natural propagation rate. Endophytic bacteria are bioactive microorganisms that form a mutualistic relationship with host plants in long-term coordinated evolution, and they can promote the growth and accumulation of effective components in host plants. The aims of this study were to identify endophytic bacteria of P. polyphylla and to characterize their properties in promoting plant growth. A total of 10 endophytic bacteria were isolated from rhizomes of P. polyphylla. The isolated endophytes exhibited a variable capacity for indole acetic acid production, phosphate solubilization and nitrogen fixation. To investigate the effects of the endophytes on plant growth, four endophyte strains, G5, J2, G20, and Y2, were selected to compare their ability to promote plant growth. The results indicated that microbial endophytes isolated from P. polyphylla rhizomes play a vital role in improving P. polyphylla plant growth and could be used as inoculants to establish a sustainable crop production system.


Subject(s)
Bacterial Physiological Phenomena , Endophytes/physiology , Melanthiaceae/growth & development , Melanthiaceae/microbiology , Plant Development , Rhizome/microbiology , DNA, Bacterial , Host Microbial Interactions , Indoleacetic Acids/metabolism , Plants, Medicinal/growth & development , Plants, Medicinal/microbiology , Symbiosis
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