Flavonoids of white lupin roots participate in phosphorus mobilization from soil

被引：117

作者：

Tomasi, Nicola ^{[1
]}

Weisskopf, Laure ^{[2
]}

Renella, Giancarlo ^{[3
]}

Landi, Loretta ^{[3
]}

Pinton, Roberto ^{[1
]}

Varanini, Zeno ^{[4
]}

Nannipieri, Paolo ^{[3
]}

Torrent, Jose ^{[5
]}

Martinoia, Enrico ^{[2
]}

Cesco, Stefano ^{[1
]}

机构：

[1] Univ Udine, Dipartimento Sci Agr & Ambientali, I-33100 Udine, Italy

[2] Univ Zurich, Inst Pflanzenbiol, CH-8006 Zurich, Switzerland

[3] Univ Florence, Dipartimento Sci Suolo & Nutr Pianta, I-50121 Florence, Italy

[4] Univ Verona, Dipartimento Sci Tecnol & Mercati Vite & Vino, I-37100 Verona, Italy

[5] Univ Cordoba, Dept Ciencias & Recursos Agr & Forestales, E-14071 Cordoba, Spain

来源：

SOIL BIOLOGY & BIOCHEMISTRY | 2008年 / 40卷 / 07期

关键词：

Lupinus albus; cluster roots; flavonoids; vivianite Biomass; soil enzymes; P deficiency;

D O I：

10.1016/j.soilbio.2008.02.017

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

摘要：

The impact of flavonoids released by phosphorus-deficient white lupin roots on inorganic P and soil microorganisms is largely unknowns We report that flavonoids isolated from white lupin roots mobilized inorganic phosphorus and decreased soil microbial respiration, citrate mineralization, and soil phosphohydrolase activities, but did not reduce the soil ATP content. The results suggest that white lupin's release of flavonoids into the rhizosphere plays a significant role in its efficient P-acquisition strategy by solubilizing Fe-bound P and by limiting the microbial mineralization of citrate. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1971 / 1974

页数：4

共 33 条

[11] THE EXCRETION OF CITRIC AND MALIC-ACID BY PROTEOID ROOTS OF LUPINUS-ALBUS L - EFFECTS ON SOIL SOLUTION CONCENTRATIONS OF PHOSPHATE, IRON, AND ALUMINUM IN THE PROTEOID RHIZOSPHERE IN SAMPLES OF AN OXISOL AND A LUVISOL [J].