Evidence map›Paper›PMID 31231768›Full record

ArticleJournal of experimental botany2019

Genotypic variation and nitrogen stress effects on root anatomy in maize are node specific.

Jennifer T Yang, Hannah M Schneider, Kathleen M Brown, Jonathan P Lynch

Open access · bronzeAbstract read
In one paragraph

Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
11.0field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

40 citing papers in PubMed, 78 citations in OpenAlex.

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  16. Transcription factor bHLH121 regulates root cortical aerenchyma formation in maize.Proceedings of the National Academy of Sciences of the United States of America · 2023
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  20. Future roots for future soils.Plant, cell & environment · 2022
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Jennifer T YangDepartment of Plant Science, The Pennsylvania State University, University Park, PA, USA.
Hannah M SchneiderDepartment of Plant Science, The Pennsylvania State University, University Park, PA, USA.
Kathleen M BrownDepartment of Plant Science, The Pennsylvania State University, University Park, PA, USA.
Jonathan P LynchDepartment of Plant Science, The Pennsylvania State University, University Park, PA, USA.
Pennsylvania State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Root phenotypes that improve nitrogen acquisition are avenues for crop improvement. Root anatomy affects resource capture, metabolic cost, hydraulic conductance, anchorage, and soil penetration. Cereal root phenotyping has centered on primary, seminal, and early nodal roots, yet critical nitrogen uptake occurs when the nodal root system is well developed. This study examined root anatomy across nodes in field-grown maize (Zea mays L.) hybrid and inbred lines under high and low nitrogen regimes. Genotypes with high nitrogen use efficiency (NUE) had larger root diameter and less cortical aerenchyma across nodes under stress than genotypes with lower NUE. Anatomical phenes displayed slightly hyperallometric relationships to shoot biomass. Anatomical plasticity varied across genotypes; most genotypes decreased root diameter under stress when averaged across nodes. Cortex, stele, total metaxylem vessel areas, and cortical cell file and metaxylem vessel numbers scaled strongly with root diameter across nodes. Within nodes, metaxylem vessel size and cortical cell size were correlated, and root anatomical phenotypes in the first and second nodes were not representative of subsequent nodes. Node, genotype, and nitrogen treatment affect root anatomy. Understanding nodal variation in root phenes will enable the development of plants that are adapted to low nitrogen conditions.

Indexed as

GenotypeNitrogenPlant RootsStress, PhysiologicalZea maysNitrogenAxial root anatomygenotypic variationmaize (Zea mays L.)nitrogen use efficiencynodephenotypingplasticity

Identifiers

PMID31231768
PMCPMC6793441
OpenAlexW2955977061

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.