摘要
【目的】阐明3个艾蒿品种(蒙艾、宛艾、野生艾)根系丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)和深色有隔内生真菌(dark septate endophytic fungi,DSE)的定殖规律及其与土壤理化因子的交互关联。【方法】采用镜检法对AMF和DSE在3个艾蒿品种根系的定殖率进行统计,并与土壤理化因子进行相关性分析。【结果】蒙艾、宛艾、野生艾根系内AMF定殖率分别为78.44%、75.22%、75.86%,DSE定殖率分别为27.22%、33.75%、27.67%。AMF定殖率与土壤碱解氮含量呈极显著负相关(P<0.01);DSE定殖率与土壤含水量呈显著正相关(P<0.05),与碱解氮含量呈极显著负相关(P<0.01)。【结论】3个艾蒿品种根系共生真菌(AMF和DSE)的定殖情况存在较大差异,并与土壤理化因子有较大相关性。
【Objective】The colonization of arbuscular mycorrhizal fungi(AMF)and dark septate endophytic fungi(DSE)in the roots of three Artemisia argyi varieties(mengai,wanai and wild Artemisia argyi)and their interaction with soil physical and chemical factors were elucidated.【Methods】The colonization rates of AMF and DSE in roots of three Artemisia argyi varieties were analyzed by microscopy,and the correlation between AMF and DSE and soil physical and chemical factors was analyzed.【Results】The colonization rates of AMF and DSE were 78.44%,75.22%,75.86%and 27.22%,33.75%,27.67%respectively in three Artemisia argyi varieties roots.AMF colonization rate was significantly negatively correlated with soil alkali-hydrolyzable nitrogen content(P<0.01);DSE colonization rate was positively correlated with soil moisture content(P<0.05),and significantly negatively correlated with alkali-hydrolyzable nitrogen content(P<0.01).【Conclusion】The colonization of root symbiotic fungi(AMF and DSE)in three Artemisia argyi varieties was different and correlated with soil physical and chemical factors.
作者
欧阳瑞培
姚庆智
石俊庭
梁秀雪
OUYANG Ruipei;YAO Qingzhi;SHI Junting;LIANG Xiuxue(College of Life Sciences,Inner Mongolia Agricultural University,Hohhot 010018,China;Inner Mongolia Donglv Ecological Science and Technology Research Institute Co.,Ltd.,Tongliao 028000,China)
出处
《北方农业学报》
2021年第2期49-55,共7页
Journal of Northern Agriculture
基金
内蒙古自治区科技重大专项。
关键词
丛枝菌根真菌
深色有隔内生真菌
艾蒿
土壤理化因子
相关性分析
Arbuscular mycorrhizal fungi
Dark septate endophytic fungi
Artemisia argyi
Soil physical and chemical factors
Correlation analysis
