期刊
PLANTS-BASEL
卷 9, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/plants9070913
关键词
dark septate endophytes (DSEs); Pinus sylvestrisvar; mongolica; damping-off biocontrol; growth stimulation; microecological environment in soil
资金
- National Natural Science Foundation of China [31670649, 31700564, 31200484, 31170597]
- National Key Research and Development Program
Dark septate endophytes (DSEs) exert a vital role in promoting plant growth, improving mineral absorption, biological disease control, and enhancing plant stress resistance. The effects of dark septate endophyte strain,Phialocephala bamuru A024 on damping-off biocontrol, plant development, nutrients within the rhizosphere soil, as well as bacterial communities in the annual seedlings of P. sylvestrisvar.Mongolicawere studied. According to our findings, following P. bamuru A024 inoculation, the damping-off disease morbidity decreased significantly compared with control, some physiological indices such as beta-1,3-glucanase, chitinase enzyme activity as well as a soluble protein and proline content inP. sylvestrisvar.mongolicawere elevated underR. solanistress. After inoculation with P. bamuru A024, the biomass in seedlings, nutrients in soil, root structure index, together with activities of soil enzymes were remarkably up-regulated relative to control (p<0.05). As suggested by the results of high-throughput sequencing, the microbial structure in the rhizosphere soil of the P. sylvestrisvar.mongolicashowed significant differences (p<0.05) after P. bamuru A024 inoculation compared to control treatment and the rhizosphere soil bacterial community structure after DSE A024 inoculation was positively correlated to the main soil nutrition indices.
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