The composition and diversity of endophytic fungi in different bamboo species for bamboo shoots
[Objective]This study was conducted in order to understand the diversity of endophytic fungi in bamboo species for bamboo shoots and their distribution characteristics in different tissue organs.[Method]Root,stem and leaf samples from healthy plants of Lei bamboo forests,thick bamboo forests and tall bamboo forests were surface sterilized and then inoculated into PDA medium to isolate and purify and identify the endophytic fungi.[Result]191 endophytic fungi were isolated from three species of bamboo.The dominant fungal genera of bamboo were Apiospora spp,Nigrospora spp,Arthrinium spp,and Shiraia spp.and the number and species of endophytic fungi and their diversity in different tissues and organs differed greatly.The leaves had the most endophytic fungi(147 strains),with the higher diversity index than that of stems and roots.Among different bamboo species,thick bamboo had the most(75 strains),with a strain colonization rate of 41.48%;Lei bamboo had the least(54 strains),with a strain colonization rate of 35.56%.The diversity index and uniformity of endophytic fungi in different bamboo species were:Lei bamboo>high knotted bamboo>thick bamboo,and both high knotted bamboo and Lei bamboo showed a higher diversity index of endophytic fungi for leaves>roots>stems,while the endophytic fungal diversity index of thick bamboo was expressed in leaves>stems>roots.The similarity analysis showed that the endophytic fungi were more similar in high nodal bamboo leaves and thick bamboo leaves.[Conclusion]Endophytic fungi in bamboo species are rich in diversity,and there is variability in endophytic fungal community diversity among different bamboo species,their tissues and organs,with host specificity and tissue preference.
bamboo species for bamboo shootsendophytic fungidiversitydominant population
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