文献类型：期刊文献

英文题名：Dynamics of Physiological Properties and Endophytic Fungal Communities in the Xylem of Aquilaria sinensis (Lour.) with Different Induction Times

作者：Zhang, Qingqing[1] Li, Rongrong[1] Lin, Yang[2] Zhao, Weiwei[3] Lin, Qiang[1] Ouyang, Lei[1] Pang, Shengjiang[4] Zeng, Huahao[1]

第一作者：Zhang, Qingqing

通信作者：Zeng, HH[1]

机构：[1]Fujian Acad Forestry, Fuzhou 350012, Peoples R China;[2]Fujian Univ Technol, Sch Design, Fuzhou 350001, Peoples R China;[3]Cent South Univ Forestry & Technol, Coll Forestry, Changsha 410004, Peoples R China;[4]Chinese Acad Forestry, Expt Ctr Trop Forestry, Pingxiang 532600, Peoples R China

年份：2024

卷号：10

期号：8

外文期刊名：JOURNAL OF FUNGI

收录：;Scopus(收录号：2-s2.0-85202610255);WOS:【SCI-EXPANDED(收录号:WOS:001307197000001)】；

基金：This research was funded by the Science and Technology Program of Fujian Province, China (Grant No. 2018R1011-5).

语种：英文

外文关键词：induction time; physio-biochemical properties; endophytic fungi diversity; network pattern; Aquilaria sinensis

摘要：Xylem-associated fungus can secrete many secondary metabolites to help Aquilaria trees resist various stresses and play a crucial role in facilitating agarwood formation. However, the dynamics of endophytic fungi in Aquilaria sinensis xylem after artificial induction have not been fully elaborated. Endophytic fungi communities and xylem physio-biochemical properties were examined before and after induction with an inorganic salt solution, including four different times (pre-induction (0M), the third (3M), sixth (6M) and ninth (9M) month after induction treatment). The relationships between fungal diversity and physio-biochemical indices were evaluated. The results showed that superoxide dismutase (SOD) and peroxidase (POD) activities, malondialdehyde (MDA) and soluble sugar content first increased and then decreased with induction time, while starch was heavily consumed after induction treatment. Endophytic fungal diversity was significantly lower after induction treatment than before, but the species richness was promoted. Fungal beta-diversity was also clustered into four groups according to different times. Core species shifted from rare to dominant taxa with induction time, and growing species interactions in the network indicate a gradual complication of fungal community structure. Endophytic fungi diversity and potential functions were closely related to physicochemical indices that had less effect on the relative abundance of the dominant species. These findings help assess the regulatory mechanisms of microorganisms that expedite agarwood formation after artificial induction.