缺磷环境下黑磷纳米片对大豆生长性状的影响  

Effects of black phosphorus nanosheets on growth traits of soybean under phosphorus deficiency condition

作　　者：安琪乐 赵青[2] 张思玉 张雪娇 李海波[1] AN Qile;ZHAO Qing;ZHANG Siyu;ZHANG Xuejiao;LI Haibo(School of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China;Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,China)

机构地区：[1]东北大学资源与土木工程学院,沈阳110819 [2]中国科学院沈阳应用生态研究所,沈阳110016

出　　处：《生态学杂志》2024年第9期2777-2783,共7页Chinese Journal of Ecology

基　　金：国家重点研发计划项目(2019YFC1803804);沈阳市科技计划项目(22⁃322⁃3⁃01)资助。

摘　　要：黑磷纳米片(BPNSs)作为一种潜在纳米肥能够为农业领域发展带来新的机遇。为验证BPNSs及其降解产物磷酸根在植物中的富集过程,探索BPNSs对大豆生长性状的影响,本研究开展了BPNSs⁃大豆共培养实验。结果表明:BPNSs可显著提升大豆植株尤其是根部的磷含量,缺磷霍格兰(Hoagland)培养条件下,BPNSs处理组根部磷含量提升45.8%,地上部磷含量提升8%,从而减缓了叶片褪绿过程,延缓了大豆缺磷症状的产生,促进了地上部与根部生长速率回归正常。透射电镜观察结果表明,大量BPNSs富集于根部尤其是根中髓内,这解释了BPNSs处理组大豆根磷含量远超对照组的原因。本研究结果为BPNSs在未来纳米农业中应用提供了基础数据。Black phosphorus nanosheets(BPNSs)as a potential nano fertilizer would bring new opportunities for agriculture development.We conducted a co⁃cultivation experiment of BPNSs and soybean to verify the accumulation process of BPNSs and its degradation product phosphate in plants,and to explore the influence of BPNSs on soybean growth traits.The results showed that BPNSs significantly increased phosphorus content of soybean plants,especially in roots.Under phosphorus⁃deficient Hoagland culture conditions,root phosphorus content of the BPNSs treatment group increased by 45.8%,and the aboveground phosphorus content increased by 8%.Leaf chlorosis and phosphorusdeficient symptoms of soybean was significantly delayed,which facilitated the growth rate of aboveground and belowground parts and help them return to normal.Moreover,the observation results of transmission electron microscopy(TEM)indicated that a large number of BPNSs were enriched in roots,especially in the root pith,which explains why root phosphorus content in the BPNSs treatment was much higher than that of the control group.This study provides basic data for the application of BPNSs in nanotechnologybased agriculture.

关 键 词：黑磷纳米片 磷效应 缺磷 大豆 生长性状 

分 类 号：S565.1[农业科学—作物学]