Graphene oxide as an antimicrobial agent can extend the vase life of cut flowers

被引：34

作者：

He, Yijia ^{[1
,2
]}

Qian, Lichao ^{[3
,4
]}

Liu, Xu ^{[2
,5
]}

Hu, Ruirui ^{[1
,2
]}

Huang, Meirong ^{[1
,2
]}

Liu, Yule ^{[3
,4
]}

Chen, Guoqiang ^{[2
,5
]}

Losic, Dusan ^{[6
]}

Zhu, Hongwei ^{[1
,2
]}

机构：

[1] Tsinghua Univ, State Key Lab New Ceram & Fine Proc, Sch Mat Sci & Engn, Beijing 100084, Peoples R China

[2] Tsinghua Univ, Ctr Nano & Micro Mech, Beijing 100084, Peoples R China

[3] Tsinghua Univ, Ctr Plant Biol, Sch Life Sci, Beijing 100084, Peoples R China

[4] Tsinghua Univ, MOE Key Lab Bioinformat, Sch Life Sci, Beijing 100084, Peoples R China

[5] Tsinghua Univ, Dept Biol, Sch Life Sci, Beijing 100084, Peoples R China

[6] Univ Adelaide, Sch Chem Engn, Engn North Bldg, Adelaide, SA 5005, Australia

来源：

NANO RESEARCH | 2018年 / 11卷 / 11期

基金：

澳大利亚研究理事会; 北京市自然科学基金;

关键词：

graphene oxide; cut flower; antimicrobial; water transport; vase life; OXIDATIVE STRESS; CARBON NANOTUBES; NANO-SILVER; ANTIBACTERIAL ACTIVITY; QUATERNARY AMMONIUM; WATER RELATIONS; EXPRESSION; BACTERIA; TOMATO; GROWTH;

D O I：

10.1007/s12274-018-2115-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

PlantNanOmics is an emerging topic in agricultural research that explores the potential effect of application of nanomaterials on plant growth. Graphene oxide (GO) has excellent properties due to its basal carbon plane and oxygen-containing functional groups. In the present work, the antimicrobial activity of GO was exploited to extend the vase life and improve the quality of cut roses (cv. Carola). The results revealed that the cut roses cultivated in low doses of GO (0.1 mg/L) had longer vase life, larger diameter, and better water relations. Microbial contaminations at the basal stem end is the most common reason for stem blockage that causes water stress and early wilting of cut flowers. GO was found to act as a germicide, effectively inhibiting the microbial growth at the cut stem end and improving water uptake and water balance of cut roses. Therefore, GO can serve as a promising preservative to increase the ornamental value of cut flowers.

引用

页码：6010 / 6022

页数：13

共 56 条

[1] Escherichia coli bacteria reduce graphene oxide to bactericidal graphene in a self-limiting manner [J].