干旱区生态环境知识资源中心(Arid): Increased nitrogen accumulation in mulberry trees due to the secretion of glomalin-related soil protein induced by arbuscular mycorrhizal fungi

Arid

DOI	10.1016/j.ejsobi.2024.103659
	Increased nitrogen accumulation in mulberry trees due to the secretion of glomalin-related soil protein induced by arbuscular mycorrhizal fungi
	Zhang, Huirong; Cheng, Hongguang; Zhang, Fang; Peng, Shiqing; Shi, Yanjin; Luo, Chaobin; Tian, Xueping; Wang, Zhenhong; Xing, Dan
通讯作者	Xing, D
来源期刊	EUROPEAN JOURNAL OF SOIL BIOLOGY
ISSN	1164-5563
EISSN	1778-3615
出版年	2024
卷号	122
英文摘要	In the initial stages of restoring areas affected by rocky desertification, plant survival is strongly influenced by nitrogen nutrition. Mycorrhization is a unique type of inter-root engineering that improves nitrogen acquisition efficiency by plant roots. We selected potted mulberry trees inoculated, two dominant arbuscular mycorrhizal fungi (AMF) with Funneliformis mosseae (Fm) and Rhizophagus intraradices (Ri), to clarify the effects of AMF on the root nitrogen content of mulberry trees. Meanwhile, the key factors of soil nitrogen changes caused by AMF were analyzed, based on the primary role of soil nitrogen as the source of root nitrogen. Simultaneously, the potential of AMF to promote the acquisition of different forms of nitrogen by mulberry roots was investigated. Our findings indicate that the inoculation of mulberry plants with Fm and Ri, improved plant height and increased nitrogen accumulation in the roots and shoots. Additionally, AMF regulates nitrogen transformation, significantly increasing soil nitrate nitrogen (NO3-N) and dissolved organic nitrogen (DON) levels. The results indicated that soil NH4+-N, NO3-N, and DON contributed to the observed changes in root nitrogen accumulation. The largest contribution (22.0 %) to the overall effect size was made by NO3-N. AMF stimulated soil microbial activity and significantly increased soil glomalin-related soil protein (GRSP), enzyme activity, and soil microbial biomass (SMB). Urease activity and microbial biomass carbon (MBC) both increased exponentially by 118.7% and 115.2 %, respectively. Higher GRSP, enzyme activity, and SMB were positively correlated with changes in soil nitrogen patterns, and GRSP had the most significant effect on changes in the soil nitrogen dynamics. Our study confirmed that inoculation with AMF not only regulates soil nitrogen dynamics but also diversifies plant nitrogen sources. This is achieved by increasing plant growth and enhancing soil microbial activity. Ultimately, this enhances plant root nitrogen nutrition. Therefore, AMF promote root nitrogen accumulation and enhance root nitrogen uptake through GRSP-regulated soil nitrogen, providing a theoretical basis for the management of rocky desertification.
英文关键词	Arbuscular mycorrhizal fungi Nitrogen nutrition Soil inorganic nitrogen Soil dissolved organic nitrogen
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001291517300001
WOS关键词	ORGANIC NITROGEN ; MICROORGANISMS ; EXTRACTION
WOS类目	Ecology ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403705
推荐引用方式 GB/T 7714	Zhang, Huirong,Cheng, Hongguang,Zhang, Fang,et al. Increased nitrogen accumulation in mulberry trees due to the secretion of glomalin-related soil protein induced by arbuscular mycorrhizal fungi[J],2024,122.
APA	Zhang, Huirong.,Cheng, Hongguang.,Zhang, Fang.,Peng, Shiqing.,Shi, Yanjin.,...&Xing, Dan.(2024).Increased nitrogen accumulation in mulberry trees due to the secretion of glomalin-related soil protein induced by arbuscular mycorrhizal fungi.EUROPEAN JOURNAL OF SOIL BIOLOGY,122.
MLA	Zhang, Huirong,et al."Increased nitrogen accumulation in mulberry trees due to the secretion of glomalin-related soil protein induced by arbuscular mycorrhizal fungi".EUROPEAN JOURNAL OF SOIL BIOLOGY 122(2024).