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

IF 1 4区农林科学 Q3 AGRONOMY

Canadian Journal of Plant Science Pub Date : 2023-01-24 DOI:10.1139/cjps-2022-0246

Yutong Jiang, Chih-Yu Hung, J. Whalen

引用次数: 0

Abstract

Abstract 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 7.8mmolL−1 NO-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.

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玉米(Zea mays)根系类型对不同硝酸盐浓度的独特可塑性

摘要玉米根系的生长随环境中硝酸盐（NO-3）浓度的变化而变化，但不同根系类型的生长可塑性不同。我们评估了暴露于0、1、2、3.9和7.8mmolL−1 NO-3的主根、精根和冠根类型的侧根和轴根的形态反应。较高的NO-3浓度不会改变主根所有轴根和侧根的生长，但会导致精根和冠根侧根的正二次生长。玉米根系对NO-3浓度的可塑性是种子和冠根类型侧枝生长差异的结果。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Canadian Journal of Plant Science 生物-农艺学

CiteScore

1.90

自引率

8.30%

发文量

审稿时长

1 months

期刊介绍： Published since 1957, the Canadian Journal of Plant Science is a bimonthly journal that contains new research on all aspects of plant science relevant to continental climate agriculture, including plant production and management (grain, forage, industrial, and alternative crops), horticulture (fruit, vegetable, ornamental, greenhouse, and alternative crops), and pest management (entomology, plant pathology, and weed science). Cross-disciplinary research in the application of technology, plant breeding, genetics, physiology, biotechnology, microbiology, soil management, economics, meteorology, post-harvest biology, and plant production systems is also published. Research that makes a significant contribution to the advancement of knowledge of crop, horticulture, and weed sciences (e.g., drought or stress resistance), but not directly applicable to the environmental regions of Canadian agriculture, may also be considered. The Journal also publishes reviews, letters to the editor, the abstracts of technical papers presented at the meetings of the sponsoring societies, and occasionally conference proceedings.