The Influence of Colonization on the Root Development and Growth of Cuttings.

Numerous studies have shown that the endophytic fungus has a broad range of promoting effects on root development and plant growth in host plants. However, there are currently no reports on the application of this fungus on . This study first compared the colonization ability of on 11 varieties and found that the colonization rate of this fungus on these varieties ranged from 90% to 100%, with the colonization rate of the varieties '09-01' and 'Nongda 7' being as high as 100%. Subsequently, the effect of on root development and plant growth of was investigated using cuttings of '09-01' and 'Nongda 7' as materials. colonization was found to increase the biomass of '09-01' and 'Nongda 7' plants; root activity, POD enzymes, and chlorophyll content were also significantly increased. In addition, indole-3-acetic acid (IAA) content in the roots of plants increased after colonization, while jasmonic acid (JA) and 1-aminocyclopropane-1-car- boxylic acid (ACC) content decreased. In conclusion, it has been demonstrated that can promote the growth of plants by accelerating biomass accumulation, promoting rooting, and enhancing the production of photosynthetic pigments, as well as regulating hormone synthesis.