天津师范大学学报（自然科学版）2025，Vol.45Issue(2)：41-48,8.DOI:10.19638/j.issn1671-1114.20250207
互花米草入侵对天津滨海湿地土壤无机磷解磷菌群落组成和多样性的影响
Effects of Spartina alterniflora invasion on the community composition and diversity of soil inorganic phosphate-solubilizing bacteria in Tianjin coastal wetland
摘要
Abstract
The invasion of Spartina alterniflora is one of the important ecological issues for the coastal wetlands in China.To ex-plore the effects of S.alterniflora invasion on the soil phosphate-solubilizing bacteria communities in coastal wetlands,the soil samples under different invasion degrees of S.alterniflora were collected from Tianjin coastal wetland.Inorganic phosphorus medium was used to cultivate soil phosphate-solubilizing bacteria,and the differences in community composition and diversity of the inorganic phosphate-solubilizing bacteria in different soil samples were analyzed.The relationships between the composi-tion of bacteria and soil properties were analyzed using redundancy analysis(RDA).The results showed that with the increase of S.alterniflora invasion extent,the quantity of soil inorganic phosphate-solubilizing bacteria in Tianjin coastal wetland signifi-cantly increased;S.alterniflora invasion significantly affected the composition of soil inorganic phosphate-solubilizing bacteria communities.In general,S.alterniflora invasion promoted the diversity of soil inorganic phosphate-solubilizing bacteria com-munities.The results of RDA showed that the soil factors playing important roles in influencing the composition of inorganic phosphate-solubilizing bacteria communities in Tianjin coastal wetland included soil NH4+-N content(explaining 37.30％),NO3--N content(explaining 33.40％),pH value(explaining 31.40％),organic matter content(explaining 29.30％),and avail-able P content(explaining 29.20％).The results of this study illustrated that S.alterniflora invasion would increase the quantity and community diversity of inorganic phosphate-solubilizing bacteria in coastal wetlands,thereby promoting the phosphorus cycling processes,which potentially further facilitate S.alterniflora invasion.关键词
滨海湿地/互花米草/生物入侵/解磷菌/群落组成/多样性Key words
coastal wetland/Spartina alterniflora/biological invasion/phosphate-solubilizing bacteria/community composi-tion/diversity分类
生物学引用本文复制引用
张慧敏,王银华,李宁宁,李俊颖,钟晓莹,胡曰会,朱琳,冀佳佳,龚佩聪,郭宏宇..互花米草入侵对天津滨海湿地土壤无机磷解磷菌群落组成和多样性的影响[J].天津师范大学学报（自然科学版）,2025,45(2):41-48,8.基金项目
国家自然科学基金资助项目(32001179,31300357) （32001179,31300357）
天津市自然科学基金资助项目(20JCZDJC00220). （20JCZDJC00220）
