Evidence map›Paper›PMID 31160657›Full record

ArticleScientific reports2019

The foliar application of a mixture of semisynthetic chitosan derivatives induces tolerance to water deficit in maize, improving the antioxidant system and increasing photosynthesis and grain yield.

Valquíria Mikaela Rabêlo, Paulo César Magalhães, Letícia Aparecida Bressanin, Diogo Teixeira Carvalho, Caroline Oliveira Dos Reis, Decio Karam, Antônio Carlos Doriguetto, Marcelo Henrique Dos Santos, Plínio Rodrigues Dos Santos Santos Filho, Thiago Corrêa de Souza

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
15.4field-weighted citation impact, top 1% 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

37 citing papers in PubMed, 134 citations in OpenAlex.

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  20. Molecular Insights into Abiotic Stresses in Mango.Plants (Basel, Switzerland) · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Valquíria Mikaela RabêloFederal University of Alfenas - UNIFAL-MG, Institute of Natural Sciences- ICN,700, Gabriel Monteiro Street, P. O. Box 37130-001, Alfenas, MG, Brazil.
Paulo César MagalhãesMaize and Sorghum National Research Center, P. O. Box 151, 35701-970, Sete Lagoas, MG, Brazil.
Letícia Aparecida BressaninFederal University of Alfenas - UNIFAL-MG, Institute of Natural Sciences- ICN,700, Gabriel Monteiro Street, P. O. Box 37130-001, Alfenas, MG, Brazil.
Diogo Teixeira CarvalhoFederal University of Alfenas - UNIFAL-MG, Faculty of Pharmaceutical Sciences, 700, Gabriel Monteiro da Silva Street, P.O. Box 37130-001, Alfenas, MG, Brazil.
Caroline Oliveira Dos ReisFederal University of Alfenas - UNIFAL-MG, Institute of Natural Sciences- ICN,700, Gabriel Monteiro Street, P. O. Box 37130-001, Alfenas, MG, Brazil.
Decio KaramMaize and Sorghum National Research Center, P. O. Box 151, 35701-970, Sete Lagoas, MG, Brazil.
Antônio Carlos DoriguettoFederal University of Alfenas - UNIFAL-MG, Chemistry Institute, Gabriel Monteiro da Silva Street, 700, P.O. Box 37130-001, Alfenas, MG, Brazil.ORCID http://orcid.org/0000-0002-2726-1265
Marcelo Henrique Dos SantosFederal University of Viçosa - UFV, Chemistry Departament, Peter Henry Rolfs Street, s/n, P.O. Box 36570-000, Viçosa, MG, Brazil.
Plínio Rodrigues Dos Santos Santos FilhoFederal University of Alfenas - UNIFAL-MG, Biochemistry Departament, Gabriel Monteiro da Silva Street, 700, P.O. Box 37130-001, Alfenas, MG, Brazil.
Thiago Corrêa de SouzaFederal University of Alfenas - UNIFAL-MG, Institute of Natural Sciences- ICN, 700, Gabriel Monteiro Street, P. O. Box 37130-001, Alfenas, MG, Brazil. thiagonepre@hotmail.com.ORCID http://orcid.org/0000-0002-4991-7704
Universidade Federal de Alfenas · BRUniversidade Federal de Viçosa · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Research has shown that chitosan induces plant stress tolerance and protection, but few studies have explored chemical modifications of chitosan and their effects on plants under water stress. Chitosan and its derivatives were applied (isolated or in mixture) to maize hybrids sensitive to water deficit under greenhouse conditions through foliar spraying at the pre-flowering stage. After the application, water deficit was induced for 15 days. Analyses of leaves and biochemical gas exchange in the ear leaf were performed on the first and fifteenth days of the stress period. Production attributes were also analysed at the end of the experiment. In general, the application of the two chitosan derivatives or their mixture potentiated the activities of the antioxidant enzymes superoxide dismutase, catalase, ascorbate peroxidase, glutathione reductase and guaiacol peroxidase at the beginning of the stress period, in addition to reducing lipid peroxidation (malonaldehyde content) and increasing gas exchange and proline contents at the end of the stress period. The derivatives also increased the content of phenolic compounds and the activity of enzymes involved in their production (phenylalanine ammonia lyase and tyrosine ammonia lyase). Dehydroascorbate reductase and compounds such as total soluble sugars, total amino acids, starch, grain yield and harvest index increased for both the derivatives and chitosan. However, the mixture of derivatives was the treatment that led to the higher increase in grain yield and harvest index compared to the other treatments. The application of semisynthetic molecules derived from chitosan yielded greater leaf gas exchange and a higher incidence of the biochemical conditions that relieve plant stress.

Indexed as

AntioxidantsAscorbate PeroxidasesCatalaseChitosanEdible GrainGlutathione ReductaseLipid PeroxidationMalondialdehydePeroxidasePhotosynthesisPlant LeavesStress, PhysiologicalSuperoxide DismutaseWaterZea maysAntioxidantsAscorbate PeroxidasesCatalaseChitosanGlutathione Reductaseguaiacol peroxidaseMalondialdehydePeroxidaseSuperoxide DismutaseWater

Identifiers

PMID31160657
PMCPMC6547683
OpenAlexW2948886398

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.