干旱区生态环境知识资源中心(Arid): Phosphorus fertilization affects soybean rhizosphere phosphorus dynamics and the bacterial community in karst soils

Arid

DOI	10.1007/s11104-020-04662-6
	Phosphorus fertilization affects soybean rhizosphere phosphorus dynamics and the bacterial community in karst soils
	Tian, Jihui; Lu, Xing; Chen, Qianqian; Kuang, Xizhi; Liang, Cuiyue; Deng, Lansheng; Lin, Dongjiao; Cai, Kunzheng; Tian, Jiang
通讯作者	Liang, CY ; Tian, J
来源期刊	PLANT AND SOIL
ISSN	0032-079X
EISSN	1573-5036
英文摘要	Background Despite the high phosphorus (P)-mobilizing capacity of legumes, little is known about the dynamics of the P fractions and bacterial communities in the rhizosphere of legumes in karst soils. Methods A field experiment was established to investigate P uptake, rhizosphere P fractions and bacterial community structure of soybean (Glycine max(L.) Merr.) in response to P fertilization (0 and 90 kg P ha(-1)) in karst soils. Results Significant rhizosphere acidification was observed during soybean cultivation. Phosphorus fertilization further decreased soil pH, HCl-P(i)and residual P, but increased NaHCO3-P(i)in the rhizosphere of soybean variety YC03-3, which was associated with the simultaneous increase in P uptake and biomass. In addition, the bacterial community composition was significantly altered by P fertilization through its effects on soil pH and Ca.BacillalesandPseudomonadaleswere the primary taxa influencing P dynamics, especially in soils without P input. Nevertheless, P fertilization decreased the relative abundance ofBacillalesandPseudomonadales, probably due to the enhanced rhizosphere acidification and improved P status. Conclusions In karst soils, recalcitrant P can be depleted directly or transformed into more labile fractions by soybean rhizosphere acidification, even when P fertilizer is applied. As a consequence, P fertilization suppressed the growth of bacteria (BacillalesandPseudomonadales) that contribute to P mobilization due to the reduced demands on these taxa to release P. Our findings highlight the importance of P fertilization in chemical P mobilization, which may consequently influence biological P turnover in the soybean rhizosphere.
英文关键词	Rocky desertification Phosphorus fractionation Rhizosphere acidification 16S rRNA Phosphorus solubilizing microorganisms
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000559363200001
WOS关键词	LONG-TERM FERTILIZATION ; MICROBIAL COMMUNITY ; INORGANIC P ; LEGUMES ; FRACTIONS ; PHOD ; DIVERSITY ; FIXATION ; WETLAND ; AVAILABILITY
WOS类目	Agronomy ; Plant Sciences ; Soil Science
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328152
作者单位	[Tian, Jihui; Lu, Xing; Chen, Qianqian; Kuang, Xizhi; Liang, Cuiyue; Deng, Lansheng; Lin, Dongjiao; Cai, Kunzheng; Tian, Jiang] South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Peoples R China; [Tian, Jihui; Cai, Kunzheng] South China Agr Univ, Guangdong Prov Key Lab Ecocircular Agr, Guangzhou 510642, Peoples R China; [Tian, Jihui; Lu, Xing; Liang, Cuiyue; Deng, Lansheng; Lin, Dongjiao; Cai, Kunzheng; Tian, Jiang] South China Agr Univ, Guangdong Lab Lingnan Modern Agr, Guangzhou 510642, Peoples R China; [Lu, Xing; Liang, Cuiyue; Tian, Jiang] South China Agr Univ, Root Biol Ctr, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou 510642, Peoples R China
推荐引用方式 GB/T 7714	Tian, Jihui,Lu, Xing,Chen, Qianqian,et al. Phosphorus fertilization affects soybean rhizosphere phosphorus dynamics and the bacterial community in karst soils[J].
APA	Tian, Jihui.,Lu, Xing.,Chen, Qianqian.,Kuang, Xizhi.,Liang, Cuiyue.,...&Tian, Jiang.
MLA	Tian, Jihui,et al."Phosphorus fertilization affects soybean rhizosphere phosphorus dynamics and the bacterial community in karst soils".PLANT AND SOIL