The role of root phene interactions in zinc and copper uptake efficiency in maize under NPK fertilization

IF 4.1 2区生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY

Plant Science Pub Date : 2025-09-16 DOI:10.1016/j.plantsci.2025.112777

Prakriti Rajput , Shubham Sharma , Haroon Rashid Hakla , Urfan Mohammad , Bhubneshwari Khajuria , Gurdev Chand , Dhiraj Vyas , Sikander Pal

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Abstract

The role of root phene (s) and root phene modules in micronutrient uptake under a regular supply of NPK are least understood in Zea mays L. (maize). Exploration of collective and individual root behavior under different treatments of excessive macronutrients (N, P, K) or NPK and their impact on the uptake of micronutrients (Zn and Cu) was compared. The positive impact of N fertilizer on Zn and Cu uptake efficiency was associated with Lateral root weight (LRW) x Root cortical aerenchyma (RCA) root phene module (M1, R² 0.079 and 0.906). The negative impact of P on Zn uptake efficiency was attributed to the M2 module (LRW x RCA x Nodal root number (NRN)) and the M1 module (R² 0.209) for Cu uptake. Similarly, the negative impact of K fertilizer on Zn and Cu uptake efficiencies was associated with M2 modules respectively. Furthermore, root phene module behavior for positive or negative impact on Zn and Cu uptake was correlated with up-regulation or down-regulation of Zn and Cu transporters in all the root types. The maximum reduction in root exploration cost was observed for N alone followed by NPK and K. The findings are important in understanding the root exploration cost and root phene module management to control the impact of N, P, K, and NPK fertilizers on Zn and Cu uptake efficiencies in maize.

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氮磷钾施肥下根烯互作对玉米锌、铜吸收效率的影响

在正常氮磷钾供应下，根酚和根酚模块在玉米微量营养素吸收中的作用是最不清楚的。比较了不同过量处理（N、P、K）或NPK下根系的集体和个体行为及其对微量元素（Zn和Cu）吸收的影响。氮肥对锌和铜吸收效率的正向影响与侧根重（LRW） ×根皮质通气组织（RCA）根烯模相关（M1， R2分别为0.079和0.906）。P对Zn吸收效率的负面影响归因于M2模块（LRW × RCA ×节点根数（NRN））和M1模块（R2 0.209）对Cu吸收的影响。同样，钾肥对锌和铜吸收效率的负面影响分别与M2模块有关。此外，对锌和铜吸收产生积极或消极影响的根表型模块行为与各根类型中锌和铜转运体的上调或下调相关。单施氮肥对玉米根系探索成本的降低幅度最大，其次是氮磷钾和钾肥。这一研究结果对了解根系探索成本和控制氮、磷、钾和氮磷钾对玉米锌和铜吸收效率的影响具有重要意义。

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

Plant Science 生物-生化与分子生物学

CiteScore

9.10

自引率

1.90%

发文量

322

审稿时长

33 days

期刊介绍： Plant Science will publish in the minimum of time, research manuscripts as well as commissioned reviews and commentaries recommended by its referees in all areas of experimental plant biology with emphasis in the broad areas of genomics, proteomics, biochemistry (including enzymology), physiology, cell biology, development, genetics, functional plant breeding, systems biology and the interaction of plants with the environment. Manuscripts for full consideration should be written concisely and essentially as a final report. The main criterion for publication is that the manuscript must contain original and significant insights that lead to a better understanding of fundamental plant biology. Papers centering on plant cell culture should be of interest to a wide audience and methods employed result in a substantial improvement over existing established techniques and approaches. Methods papers are welcome only when the technique(s) described is novel or provides a major advancement of established protocols.