文献类型：期刊文献

英文题名：Effects of endophytic and ectomycorrhizal basidiomycetes on Quercus virginiana seedling growth and nutrient absorption

作者：Jin, Wei[1,2] Peng, Long[1,2] Zhang, Xiaoguo[2] Sun, Haijing[2] Yuan, Zhilin[1,2]

第一作者：Jin, Wei

通信作者：Yuan, ZL[1];Yuan, ZL[2]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing, Peoples R China;[2]Chinese Acad Forestry, Inst Subtrop Forestry, Hangzhou, Zhejiang, Peoples R China

年份：2019

卷号：38

期号：5

起止页码：457-470

外文期刊名：JOURNAL OF SUSTAINABLE FORESTRY

收录：;EI(收录号：20190506460346);Scopus(收录号：2-s2.0-85060830889);WOS:【SCI-EXPANDED(收录号:WOS:000474477000004)】；

基金：This work was financially supported by Fundamental Research Funds for the Central Non-profit Research of Chinese Academy of Forestry (CAFYBB2017MA003) and the National Natural Science Foundation of China (no. 31722014).

语种：英文

外文关键词：Atractiellales; Cantharellales; phytohormone; root symbiosis; Sebacinales

摘要：Quercus virginiana (Fagaceae), native to the southeastern United States, has recently been introduced to the Yangtze Delta (China) and is often planted in landscaping and in coastal shelter forests. Here, we performed pot inoculation assays to evaluate the effects of two types of basidiomycetous root fungal symbionts, across four orders, on the growth and nutrient absorption of Q.virginiana seedlings. The results indicated that two isolates showed plant growth-promoting activities 2months after inoculation. In particular, the ectomycorrhizal Sistotrema sp. (Cantharellales) had a pronounced effect on root development and morphology. With regard to nutrient absorption, the total nitrogen content in aboveground tissues was improved in inoculated seedlings, although most differences were not significant. Meanwhile, the total phosphorus contents in seedlings were either positively or negatively affected, probably depending on the symbiont type. Interestingly, the total potassium content in stems and leaves was significantly enhanced in all treatment groups. In addition, indole-3-acetic acid and abscisic acid production were determined in Sistotrema sp. and Atractiella rhizophila (Pucciniomycotina) by high-performance liquid chromatography tandem mass spectrometry. Our findings suggest that both endophytic and ectomycorrhizal fungi have beneficial effects on Q.virginiana growth, and highlight the potential for the development of mycobiome-based seedling raising techniques.