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Changes in P accumulation, tissue P fractions and acid phosphatase activity of Pilea sinofasciata in poultry manure-impacted soil

文献类型： 外文期刊

作者： Ye, Daihua 2 ; Chen, Jing 1 ; Li, Tingxuan 1 ; Zhang, Xizhou 1 ;

作者机构： 1.Sichuan Agr Univ, Coll Resources, 211 Huimin Rd, Chengdu 611130, Sichuan, Peoples R China

2.Univ Western Australia, Sch Biol Sci, 35 Stirling Highway, Perth, WA 6009, Australia

3.Mianyang Acad Agr Sci, 8 Songjiang Rd, Mianyang 621023, Sichuan, Peoples R China

关键词： Poultry manure (PM); Tissue P fractions; Acid phosphatase; Pilea sinofascata; Phytoextraction

期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）

ISSN： 0981-9428

年卷期： 2018 年 132 卷

页码：

收录情况： SCI

摘要： Pilea sinofasciata is a promising phytoextraction material to remove excess phosphorus (P) from manure-impacted soil. However, little information is available on its physiological response to animal manure treatments. Here, P accumulation, tissue P fractions and acid phosphatase activity were investigated in a mining ecotype (ME) and a non-mining ecotype (NME) of P. sinofasciata at different poultry manure (PM) treatments (0, 25, 50, 75, 100 and 125 g kg(-1)). Biomass and P accumulation of the ME increased up to 50 g kg(-1), after which they significantly decreased; while P accumulation of the NME increased up to 100 g kg(-1). But, shoot and root P accumulation of the ME were significantly higher than those of the NME at all PM treatments, showing 1.13-2.92 and 1.11-2.89 times higher values, respectively. Inorganic P and nucleic P dominated in tissues of both ecotypes. Besides, the ME maintained higher concentrations of inorganic P and ester P in leaves and ester P, nucleic P and residual P in roots than the NME. Acid phosphatase activity in leaves and roots increased by increasing PM treatments, except in root at 125 g kg(-1). Acid phosphatase activity in leaves of the ME was positively correlated with concentrations of inorganic P, ester P and nucleic P, while that of the NME only correlated with inorganic P concentration. Probably, the optimized P fractions allocation and higher tissue acid phosphatase allow the ME to grow well and efficiently accumulate P in PM-impacted soil.

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