越橘与根际微生物互作影响中国北方森林火干扰后的自然演替过程的机制研究
[目的]火干扰通过直接和间接的方式改变森林结构,对森林生态系统构成严重的威胁。火干扰后自然演替过程的调控机理在很大程度上是未知的,了解这一点对于受火干扰影响的植被恢复尤为重要。[方法]本研究使用野外调查和实验操作相结合,通过构建根际土壤微生物群落结构,室内栽培越橘无菌苗,筛选特定的菌根真菌和根际细菌,测定植物根系分泌物等手段。[结果]越橘生长发育在火干扰后演替初期影响较大。火灾改变了越橘根际微生物群落结构,但通过与菌根真菌相互作用利用纤维素和木质…查看全部>>
[Objective]Wildfires change forest structure directly and indirectly,posing a serious threat to forest ecosystems.The regulatory mechanism of natural succession processes after wildfires is largely unknown,and understanding this mechanism is particularly important for vegetation restoration affected by wildfires.[Method]We used a combination of field investigation and experimental operation by constructing the rhizosphere soil microbial community structure,i…查看全部>>
娄虎;张杰;蔡慧颖;范宝珍;郭超;付饶;胡海清;孙龙;
Wildfire Root exudates Fire history Microbial community Gene expression.
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