一年蓬和加拿大一枝黃花共同入侵對土壤細菌群落豐度的協(xié)同作用(英文)
發(fā)布時間:2024-07-08 21:12
一些入侵植物成功入侵的主因之一就是它們促進其根際土壤微生物群落的演替。此外,同一生態(tài)系統(tǒng)中可能遭受兩種甚至是兩種以上入侵植物的入侵。所以,探究共同入侵的入侵植物對土壤細菌群落的影響對闡明入侵植物成功入侵的機理具有重要作用。本文以高通量測序技術為手段,探究不同入侵程度的一年蓬和加拿大一枝黃花共同入侵對土壤細菌群落結構的影響。一年蓬和/或加拿大一枝黃花入侵顯著增加了土壤細菌的、Shannon指數(shù)和Chao1指數(shù)。低度入侵的加拿大一枝黃花以及一年蓬和加拿大一枝黃花共同入侵顯著增加了土壤細菌的ACE指數(shù)。一年蓬和/或加拿大一枝黃花可通過增加土壤細菌群落的多樣性和豐度促進了其進一步的入侵進程,高的土壤細菌群落多樣性和豐度可提升土壤功能和營養(yǎng)獲取水平。與一年蓬和加拿大一枝黃花單一入侵相比,一年蓬和加拿大一枝黃花共同入侵顯著增加了土壤細菌的ACE指數(shù)。因此,一年蓬和加拿大一枝黃花共同入侵對影響土壤細菌群落豐度具有協(xié)同作用,構建了一個利于其自身生長及其進一步入侵的土壤微環(huán)境條件。
【文章頁數(shù)】:12 頁
【文章目錄】:
1 Introduction
2 Materials and methods
2.1 Study design
2.2 Determination of plant diversity and community composition
2.3 Determination of soil physicochemical properties
2.4 Determination of structure of soil bacterial communities
2.5 Statistical analysis
3 Results
3.1 Alpha diversity of soil bacterial communities
3.2 Relative abundance of soil bacterial community proportions at phylum level
3.3 Beta-diversity of soil bacterial communities
3.4 Correlations between plant diversity as well as soil physicochemical properties and alpha diversity of soil bacterial communities
4 Discussion
5 Conclusions
本文編號:4003885
【文章頁數(shù)】:12 頁
【文章目錄】:
1 Introduction
2 Materials and methods
2.1 Study design
2.2 Determination of plant diversity and community composition
2.3 Determination of soil physicochemical properties
2.4 Determination of structure of soil bacterial communities
2.5 Statistical analysis
3 Results
3.1 Alpha diversity of soil bacterial communities
3.2 Relative abundance of soil bacterial community proportions at phylum level
3.3 Beta-diversity of soil bacterial communities
3.4 Correlations between plant diversity as well as soil physicochemical properties and alpha diversity of soil bacterial communities
4 Discussion
5 Conclusions
本文編號:4003885
本文鏈接:http://www.lk138.cn/kejilunwen/nykj/4003885.html
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