Effect of copper oxide nanoparticles on two varieties of sweetpotato plants

被引：19

作者：

Bonilla-Bird, N. J. ^{[1
]}

Ye, Y. ^{[2
]}

Akter, T. ^{[2
]}

Valdes-Bracamontes, C. ^{[2
]}

Darrouzet-Nardi, A. J. ^{[4
]}

Saupe, G. B. ^{[2
]}

Flores-Marges, J. P. ^{[5
]}

Ma, L. ^{[2
]}

Hernandez-Viezcas, J. A. ^{[2
,3
]}

Peralta-Videa, J. R. ^{[1
,2
,3
]}

Gardea-Torresdey, J. L. ^{[1
,2
,3
]}

机构：

[1] Univ Texas El Paso, Environm Sci & Engn PhD Program, 500 West Univ Ave, El Paso, TX 79968 USA

[2] Univ Texas El Paso, Dept Chem & Biochem, 500 West Univ Ave, El Paso, TX 79968 USA

[3] Univ Texas El Paso, UC Ctr Environm Implicat Nanotechnol UC CEIN, 500 West Univ Ave, El Paso, TX 79968 USA

[4] Univ Texas El Paso, Biol Sci Dept, 500 West Univ Ave, El Paso, TX 79968 USA

[5] Autonomous Univ Ciudad Juarez, Plutarco Elias Galles 1210, Ciudad Juarez 32310, Chihuahua, Mexico

来源：

PLANT PHYSIOLOGY AND BIOCHEMISTRY | 2020年 / 154卷

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

BIOCHEMICAL-CHANGES; CUCUMIS-SATIVUS; CERIUM OXIDE; ACCUMULATION; WHEAT; NANOMATERIALS; DISSOLUTION; DISRUPTION; PARAMETERS; MORPHOLOGY;

D O I：

10.1016/j.plaphy.2020.06.009

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Little information is available on the interaction of CuO nanoparticles (nCuO) with tuberous roots. In this study, Beauregard-14 (B-14, low lignin) and Covington (COV, high lignin) sweetpotato varieties were cultivated until maturity in soil amended with nCuO, bulk copper oxide (bCuO) and CuCl2 at 25-125 mg/kg. The Cu treatments had no significant influence on chlorophyll content. Gas exchange parameters were not affected in B-14. In COV, however, at 125 mg/kg treatments, bCuO reduced the intercellular CO2 (11%), while CuCl2 increased it by 7%, compared with control (p <= 0.035). At 25 mg/kg nCuO increased the length of COV roots (20.7 +/- 2.0 cm vs. 14.6 +/- 0.8 cm, p <= 0.05). In periderm of B-14, nCuO, at 125 mg/kg, increased Mg by 232%, while the equivalent concentration of CuCl2 reduced P by 410%, compared with control (p <= 0.05). The data suggest the potential application of nCuO as nanofertilizer for sweetpotato storage root production.

引用

页码：277 / 286

页数：10