title: Response of rhizosphere soil microbial to Deyeuxia angustifolia encroaching in two different vegetation communities in alpine tundra.
abstract: Deyeuxia angustifolia (Komarov) Y. L Chang is an herb species originating from the birch forests in the Changbai Mountain. Recently, this species has been found encroaching into large areas in the western slopes of the alpine tundra in the Changbai Mountain, threatening the tundra ecosystem. In this study, we systematically assessed the response of the rhizosphere soil microbial to D. angustifolia encroaching in alpine tundra by conducting experiments for two vegetation types (shrubs and herbs) by real-time PCR and Illumina Miseq sequencing methods. The treatments consisted of D. angustifolia sites (DA), native sites (NS, NH) and encroaching sites (ES, EH). Our results show that (1) Rhizosphere soil properties of the alpine tundra were significantly impacted by D. angustifolia encroaching; microbial nutrient cycling and soil bacterial communities were shaped to be suitable for D. angustifolia growth; (2) The two vegetation community rhizosphere soils responded differently to D. angustifolia encroaching; (3) By encroaching into both vegetation communities, D. angustifolia could effectively replace the native species by establishing positive plant-soil feedback. The strong adaptation and assimilative capacity contributed to D. angustifolia encroaching in the alpine tundra. Our research indicates that D. angustifolia significantly impacts the rhizosphere soil microbial of the alpine tundra.
authors.affiliation: National &Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun 130112, China.|School of Life Science, Jilin University, Changchun 130012, China.
authors.forename: Lin
authors.initials: L
authors.lastname: Li
authors.affiliation: National &Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun 130112, China.|School of Life Science, Jilin University, Changchun 130012, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Xing
authors.affiliation: Huhhot Vocational college, Huhht, Inner Mongolia 010051, China.
authors.forename: Jiangwei
authors.initials: J
authors.lastname: Lv
authors.affiliation: National &Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun 130112, China.|School of Life Science, Jilin University, Changchun 130012, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Wang
authors.affiliation: National &Local United Engineering Laboratory for Chinese Herbal Medicine Breeding and Cultivation, Jilin University, Changchun 130112, China.|School of Life Science, Jilin University, Changchun 130012, China.
authors.forename: Xia
authors.initials: X
authors.lastname: Chen
mesh_terms: D001419:Bacteria / Q000145:classification* / Q000235:genetics / Q000378:metabolism; D058448:Biota; D002681:China; D006109:Poaceae / Q000254:growth & development*; D060888:Real-Time Polymerase Chain Reaction; D058441:Rhizosphere; D017422:Sequence Analysis, DNA; D012988:Soil Microbiology; D065929:Tundra