Evidence map›Paper›PMID 42717318›Full record

ArticleBMC plant biology2026

Root traits are strongly associated with nitrogen uptake efficiency in contrasting rapeseed genotypes.

Xiao Guo, Tingting Dai, Ji Luo, Qian Luo, Yanli Chen

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Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

5 authors.

Xiao GuoResearch Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong, Sichuan, China. guoxiao2021@suse.edu.cn.ORCID https://orcid.org/0000-0003-1519-8075
Tingting DaiResearch Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong, Sichuan, China.
Ji LuoResearch Center of Agricultural Economy, Sichuan University of Science & Engineering, Zigong, Sichuan, China.
Qian LuoSichuan Provincial Engineering Research Center of Resource Utilization for Agricultural and Forestry Wastes, Chengdu Normal University, Chengdu, Sichuan, China.
Yanli ChenShipping Logistics Collaborative Innovation Center in the Upper reaches of Yangtze River, Yibin University, Yibin, Sichuan, China.

Funding

General project of Shipping Logistics Collaborative Innovation Center in the Upper reaches of Yangtze River XTCX2025A05Project approved in 2025 by Sichuan Provincial Engineering Research Center of Resource Utilization for Agricultural and Forestry Wastes NLFQW202514Scientific Research and Innovation Team Program of Sichuan University of Science and Technology SUSE652B001the Open Fund Project of Key Laboratory of Agricultural Environment of Northwest Oasis, Ministry of Agriculture and rural Affairs XBLZ-2025-2-2
6 · The paper itself

Abstract

Screening the higher nitrogen (N) uptake efficiency (NUpE) rapeseed (Brassica napus L.) genotype (N-efficient-genotype) and exploring the N efficient uptake mechanism could be an ideal way to meet the environmentally use of valuable N and the increasing demand for edible oils. In this study, we selected a N-efficient-genotype and a N-inefficient-genotype to dissect the differences in root physiological indexes under a pot experiment and a hydroponic culture. Results showed that during the high and low N levels, root biomass was the main factor affecting NUpE at the pot experiment. Compared to the N-inefficient-genotype, N-efficient-genotype displayed respectively 39.72%, 31.52%, 39.94%, 41.28% and 54.80% higher root biomass, N content, root length, root surface area and Vmax, along with 36.86%,48.68%, 134.14%, 72.71%, nitrate reductase (NR), glutamine synthetase (GS), catalase (CAT) and glutathione (GSH) activity. These were accompanied by a significant increase (P < 0.05) in BnNRT1.1 (7.04 fold), BnNRT1.5 (4.66 fold), BnNRT2.1 (8.63 fold) and BnNRT2.5 (12.13 fold), which may result in the greater N uptake ability than did the N-inefficient-genotype under the hydroponic culture. Our results indicate that higher root indexes for the N-efficient-genotype could uptake more N to support the photosynthesis sustained and seed development, and would achieve the larger NUpE and NUE in rapeseed genotypes.

Indexed as

Brassica napusNitrogenPlant RootsGenotypeHydroponicsNitrogenN-efficient-genotypeNitrogen uptake efficiencyRapeseedRoot indexes

Identifiers

PMID42717318
PMCPMC13560114

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