Distinctive plasticity of maize (Zea mays) root types to variable nitrate concentration

被引：0
|
作者：
Jiang, Yutong [1 ]
Hung, Chih-Yu [1 ]
Whalen, Joann K. [1 ]
机构：
[1] McGill Univ, Dept Nat Resource Sci, 21111 Lakeshore Rd,Macdonald Campus, Sainte Anne de Bellevue, PQ H9X 3V9, Canada
来源：
CANADIAN JOURNAL OF PLANT SCIENCE | 2023年 / 103卷 / 03期
基金：
加拿大自然科学与工程研究理事会;
关键词：
auxin; axial roots; nitrogen uptake; perlite; phenotypic plasticity; root architecture; AUXIN TRANSPORT; NITROGEN; GROWTH;
D O I：
10.1139/CJPS-2022-0246
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
Maize roots vary their growth in response to nitrate (NO-3) concentration in the environment, but growth plasticity differs among root types. We assessed the morphological response of lateral and axial roots on the primary, seminal, and crown root types exposed to 0, 1, 2, 3.9, and 7.8 mmol L-1NO-3. Higher NO-3 concentration did not change the growth of all axial roots and laterals of primary roots but caused positive quadratic growth in laterals of the seminal and crown root types. Maize root plasticity to NO-3 concentrations is the result of differential growth of laterals on seminal and crown root types.
引用
收藏
页码：319 / 323
页数：5
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