Evidence map›Paper›PMID 34202853›Full record

ArticlePlants (Basel, Switzerland)2021

Effect of Drought Stress on Capsaicin and Antioxidant Contents in Pepper Genotypes at Reproductive Stage.

Tahir Mahmood, Rashid Mehmood Rana, Sunny Ahmar, Saima Saeed, Asma Gulzar, Muhammad Azam Khan, Fahad Masoud Wattoo, Xiukang Wang, Ferdinando Branca, Freddy Mora-Poblete and 2 more

Open access · goldAbstract read
In one paragraph

Article in Plants (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
7.7field-weighted citation impact, top 3% 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

17 citing papers in PubMed, 54 citations in OpenAlex.

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  8. TheFrontiers in plant science · 2025
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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

12 authors at 6 institutions in 5 countries.

Tahir MahmoodDepartment of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.
Rashid Mehmood RanaDepartment of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.ORCID 0000-0003-3681-9942
Sunny AhmarInstitute of Biological Sciences, Campus Talca, Universidad de Talca, Talca 3465548, Chile.
Saima SaeedDepartment of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.
Asma GulzarDepartment of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.
Muhammad Azam KhanDepartment of Horticulture, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.
Fahad Masoud WattooDepartment of Plant Breeding and Genetics, PMAS-Arid Agriculture University, Rawalpindi 46000, Pakistan.
Xiukang WangCollege of Life Sciences, Yan'an University, Yan'an 716000, China.ORCID 0000-0001-5638-809X
Ferdinando BrancaDepartment of Agriculture, Food and Environment (Di3A), University of Catania, 95123 Catania, Italy.
Freddy Mora-PobleteInstitute of Biological Sciences, Campus Talca, Universidad de Talca, Talca 3465548, Chile.ORCID 0000-0002-4845-3549
Gabrielle Sousa MafraCentro de Ciências Agrárias, Universidade Estadual da Região Tocantina do Maranhão, R. Godofredo Viana, 1300, Imperatriz 65901-480, MA, Brazil.
Xionming DuState Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences (ICR, CAAS), Anyang 455000, China.
Pir Mehr Ali Shah Arid Agriculture University · PKUniversity of Talca · CLCotton Research Institute · CNUniversidade Estadual da Região Tocantina do Maranhão · BRUniversity of Catania · ITYan'an University · CN

Funding

The study was financially supported by the Chilean National Fund for Scientific and Technological 357 Development (FONDECYT) grant number 1201973. 1201973
6 · The paper itself

Abstract

Pepper is one of the most important vegetables and spices in the world. Principal pungency is contributed by secondary metabolites called capsaicinoids, mainly synthesized in the placenta of pepper fruit. Various factors, including drought, limit pepper production. Flowering is one of the most sensitive stages affected by drought stress. The current study was conducted to determine the effect of drought on different pepper genotypes at the flowering and pod formation stages. Hot pepper (Pusajuala and Ghotki) and Bell pepper (Green Wonder and PPE-311) genotypes were subjected to drought (35% field capacity) at two different stages (flowering (DF) and pod formation (DP) stage). In comparison, control plants were maintained at 65% field capacity. The data regarding flowering survival rates, antioxidant protein activity, and proline content, were collected. Results indicated that parameters like flower survival percentage, number of fruits per plant, and fruit weight had significant differences among the genotypes in both treatments. A high proline level was observed in Green Wonder at the pod formation stage compared to other genotypes. Capsaicin contents of hot pepper genotypes were affected at the pod formation stage. Antioxidants like GPX were highly active (190 units) in Ghotki at pod formation. Bell pepper genotypes had a high APX activity, highly observed (100 units) in PPE-311 at pod formation, and significantly differ from hot pepper genotypes. In the catalase case, all the genotypes had the highest values in DP compared to control and DF, but Pusajuala (91 units) and Green Wonder (83 units) performed best compared to other genotypes. Overall, the results indicate that drought stress decreased reproductive growth parameters and pungency of pepper fruit as most of the plant energy was consumed in defense molecules (antioxidants). Therefore, water availability at the flowering and pod formation stage is critical to ensure good yield and pepper quality.

Indexed as

antioxidantcapsaicindroughtmetabolomicspepperreactive oxygen speciesROS

Identifiers

PMID34202853
PMCPMC8309139
OpenAlexW3177211877

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.