Genotypic Variability in Root Morphology in a Diverse Wheat Genotypes Under Drought and Low Phosphorus Stress DOI Creative Commons
Xin Li, Yinglong Chen, Yuzhou Xu

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(23), P. 3361 - 3361

Published: Nov. 29, 2024

Screening genotypes with optimal root traits presents a promising breeding strategy for enhancing adaptability to abiotic stresses and improving resource use efficiency. This study evaluated of 100 winter wheat under four treatments: control (C), low phosphorus (LP), PEG-induced drought (D), combination LP (DLP), using semi-hydroponic phenotyping platform. Significant variations in were observed 65 days after transplanting, over 80% being significantly affected by drought, phosphorus, or their interactions. Biomass content decreased while length diameter deeper layers increased, especially stress. Combined stress led the most severe reductions biomass, P-content, leaf number. Phosphorus acquisition efficiency was positively correlated but inversely related tolerance. High heritability traits, such as number, length, maximum depth, hold potential programs focused on environmental adaptation, efficiency, yield improvement. The substantial genotypic variation morphology conditions highlights stress-resilient genotypes. finding lays foundation wheat-breeding initiatives aimed at developing better suited prevailing conditions.

Language: Английский

Oxygen and Nitrogen Vacancies in a BiOBr/g-C3N4 Heterojunction for Sustainable Solar Ammonia Fertilizer Synthesis DOI
Lei Zhang, Min Jiang, Hao Tian

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 2028 - 2040

Published: Jan. 23, 2024

Efficient and economical nitrogen fixation photocatalysts are one of the most attractive goals in ammonia-demanding agricultural production. Herein, a straightforward defect engineering heterojunction strategy has been presented. Using situ solvothermal techniques, BiOBr/g-C3N4 photocatalyst with oxygen double vacancies was achieved, its NH3 yields exceeded that g-C3N4 single N-vacancy BiOBr an O-vacancy by 23.5 2.9 times, respectively. Meanwhile, efficient spatial photocarrier separation obtained through interfacial interaction between BiOBr. Additionally, BiOBr/g-C3N4/polyacrylonitrile (PAN) microfibers related waterwheel-like reactors were designed. Upon natural sunlight, these can conduct long-term using only air water. Compared powder catalysts, BiOBr/g-C3N4/PAN microfiber catalysts exhibited higher stability recoverability. The solar ammonia fertilizer produced supplies crops essential nutrients, which foster their growth. This significant implications for reducing expenses associated conventional fertilizers contributing to environmental preservation.

Language: Английский

Citations

5
Cortical parenchyma wall width regulates root metabolic cost and maize performance under suboptimal water availability DOI Creative Commons
Jagdeep Singh Sidhu, Iván López-Valdivia, Christopher Strock

et al.

Journal of Experimental Botany, Journal Year: 2024, Volume and Issue: 75(18), P. 5750 - 5767

Published: April 25, 2024

Abstract We describe how increased root cortical parenchyma wall width (CPW) can improve tolerance to drought stress in maize by reducing the metabolic costs of soil exploration. Significant variation (1.0–5.0 µm) for CPW was observed germplasm. The functional–structural model RootSlice predicts that increasing from 2 µm 4 is associated with a ~15% reduction cytoplasmic volume, respiration rate, and nitrogen content. Analysis genotypes contrasting grown without water field confirms correlated an ~32–42% decrease respiration. Under field, 125% stomatal conductance, 325% leaf CO2 assimilation 73–78% shoot biomass, 92–108% yield. mesophyll midrib width, indicating pleiotropy. Genome-wide association study analysis identified candidate genes underlying CPW. OpenSimRoot modeling due would also benefit growth under suboptimal nitrogen, which requires empirical testing. propose as new phene has utility edaphic meriting further investigation.

Language: Английский

Citations

4
Plant organic nitrogen nutrition: costs, benefits, and carbon use efficiency DOI Creative Commons
Laura Tünnermann,

Camila Aguetoni Cambuí,

Oskar Franklin

et al.

New Phytologist, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 15, 2024

Summary Differences in soil mobility and assimilation costs between organic inorganic nitrogen (N) compounds would hypothetically induce plant phenotypic plasticity to optimize acquisition of, performance on, the different N forms. Here we evaluated this hypothesis experimentally theoretically. We grew Arabidopsis split‐root setups combined with stable isotope labelling study uptake distribution of carbon (C) from l ‐glutamine ( ‐gln) NO 3 − assessed effect source on biomass partitioning use efficiency (CUE). Analyses isotopes showed that 40–48% C acquired ‐gln resided plants, contributing 7–8% total both shoots roots. Plants grown exhibited increased root mass fraction hair length a significantly lower rate per unit but displayed enhanced CUE. Our data suggests nutrition is linked particular phenotype extensive growth roots hairs optimizes for less mobile Increased CUE may be key facets phenotype.

Language: Английский

Citations

4
Genotypic Differences in Maize Root Morphology in Response to Low-Nitrogen Stress DOI Creative Commons

Xichao Sun,

Peng Wang, Guohua Mi

et al.

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 332 - 332

Published: Jan. 28, 2025

The root system plays an important role in the efficient absorption of nitrogen (N), but there is limited understanding growth characteristics maize roots different genotypes and their dynamic response to N supply. In this study, landraces 1950s modern hybrids, hybrids parents, inbred lines with efficiency standard line B73 were used, combined culture method, observe changes under long-term stress conditions. results showed that genotypic differences low N. Low enhances earlier than increases shoot-to-root dry matter allocation. With extension stress, biomass each genotype basically increased significantly from 3 6 days then was gradually reversed by high on 12th day. As for shoot biomass, 11 began decrease 9 after low-N stress. total axial length, primary seminal first second whorl crown length seven more or less number third fourth decreased significantly, which indicated regulation elongation initiation. degree increased, trend lateral could be divided into three categories, indicating genotype-dependent. advancement breeding process, become smaller responsive phenotypes Zhengdan958 Xianyu335 come genetic models. Compared embryonic roots, have a active adapting Shoot concentration may reflect plant internal status, regulatory morphogenesis.

Language: Английский

Citations

0
Fractal analysis of the response of the Agriophyllum pungens root architecture to the habitat gradient in the oasis desert ecotone DOI
LI Qun, Min Ma, Jun Wen

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Abstract In deserts, plant abundance is low, and the ecosystem fragile. The study of root architecture desert plants combined with global fractal multifractal analyses helpful for revealing survival strategies adopted by in response to harsh environmental conditions, which important understanding phenotypic plasticity roots protection ecosystems. However, analysis approaches have not been commonly studies focused on configurations under influence habitat gradients. this study, an interdunal depression area (Plot Ⅰ), a gentle sand slope Ⅱ) crest Ⅲ) were selected oasis ecotone Jinchuan District, Gansu Province. responses morphology characteristics Agriophyllum pungens heterogeneous conditions studied. results revealed that (FA) A. gradually increased, singularity spectral width decreased, Rényi increased. Plot Ⅰ, distribution was simple, relatively high uniformity symmetry, FA decreased. contrast, configuration complex, low symmetry. III, highly uniform symmetrical established. Under different coevolution geometry structure realized basis balance root–shoot biomass allocation, adapted habitat. This reflects ecological adaptation these habitats.

Language: Английский

Citations

0
An overview of root traits and ideotypes for improving crop productivity and addressing agronomic challenges. DOI Creative Commons
Suman Bagale, Rebecca Oiza Enesi, Linda Yuya Gorim

et al.

Rhizosphere, Journal Year: 2025, Volume and Issue: unknown, P. 101105 - 101105

Published: May 1, 2025

Language: Английский

Citations

0
Nitrogen fertilization affected microbial carbon use efficiency and microbial resource limitations via root exudates DOI

Jinshan Lian,

Guihua Li, Jianfeng Zhang

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 950, P. 174933 - 174933

Published: July 21, 2024

Language: Английский

Citations

3
Cytokinin Biosynthesis Is Affected by Selenium and Nitrate Availabilities to Regulate Shoot and Root Growth in Rice Seedlings DOI Creative Commons
Lubia S. Teixeira, Thiago Alexandre Mota,

Deisy J. C. Lopez

et al.

Nitrogen, Journal Year: 2024, Volume and Issue: 5(1), P. 191 - 201

Published: March 4, 2024

Selenium (Se) and nitrate have the potential to modify rice root architecture, but it is unclear how Se linked changes in seedlings status. Thus, were grown nutrient solutions containing either 0- or 10-µM that supplemented with 0.05 (low condition) 5.0 mM (high condition). application treated low led sugar accumulation shoot increased cytokinin concentrations root, while decreasing compared alone. This, turn, resulted decreased growth, downregulation of OsXTH OsEXP negatively affected expansion. On other hand, combined did not affect concentration tissues nitrate. Moreover, regulated biosynthesis under The reduction by high condition growth through induction OsEXP. many effects are due a shift status seedlings.

Language: Английский

Citations

2
The pore‐rhizosheath shapes maize root architecture by enhancing root distribution in macropores DOI
Lingling Liu, Shijie Qin, W. R. Whalley

et al.

Plant Cell & Environment, Journal Year: 2024, Volume and Issue: 47(8), P. 2911 - 2922

Published: April 16, 2024

Abstract Pores and old root‐channels are preferentially used by roots to allow them penetrate hard soils. However, there few studies that have accounted for the effects of pore‐rhizosheath on root growth. In this study, we developed an approach adding synthetic exudates using a porous stainless tube with 0.1‐mm micropores through peristaltic pump reproduce rhizosheath around artificial pore, investigated pores without rhizosheaths maize growth in dense soil. The results indicated was about 2.69 mm wide region surrounding pores. had higher content organic carbon, total nitrogen, abundance Actinobacteria than bulk Compared macropores, root‐pores increased opportunities utilisation space, promoting steeper deeper It is concluded has significant impact architecture enhancing distribution macropores.

Language: Английский

Citations

2
After photosynthesis, what then: Importance of respiration to crop growth and yield DOI
Jeffrey S. Amthor

Field Crops Research, Journal Year: 2024, Volume and Issue: 321, P. 109638 - 109638

Published: Nov. 21, 2024

Language: Английский

Citations

2