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Comparative metabolomics of root-tips reveals distinct metabolic pathways conferring drought tolerance in contrasting genotypes of rice

Overview of attention for article published in BMC Genomics, March 2023
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Title
Comparative metabolomics of root-tips reveals distinct metabolic pathways conferring drought tolerance in contrasting genotypes of rice
Published in
BMC Genomics, March 2023
DOI 10.1186/s12864-023-09246-z
Pubmed ID
Authors

Zahra Ghorbanzadeh, Rasmieh Hamid, Feba Jacob, Mehrshad Zeinalabedini, Ghasem Hosseini Salekdeh, Mohammad Reza Ghaffari

Abstract

The mechanisms underlying rice root responses to drought during the early developmental stages are yet unknown. This study aimed to determine metabolic differences in IR64, a shallow-rooting, drought-susceptible genotype, and Azucena, a drought-tolerant and deep-rooting genotype under drought stress. The morphological evaluation revealed that Azucena might evade water stress by increasing the lateral root system growth, the root surface area, and length to access water. At the same time, IR64 may rely mainly on cell wall thickening to tolerate stress. Furthermore, significant differences were observed in 49 metabolites in IR64 and 80 metabolites in Azucena, for which most metabolites were implicated in secondary metabolism, amino acid metabolism, nucleotide acid metabolism and sugar and sugar alcohol metabolism. Among these metabolites, a significant positive correlation was found between allantoin, galactaric acid, gluconic acid, glucose, and drought tolerance. These metabolites may serve as markers of drought tolerance in genotype screening programs. Based on corresponding biological pathways analysis of the differentially abundant metabolites (DAMs), biosynthesis of alkaloid-derivatives of the shikimate pathway, fatty acid biosynthesis, purine metabolism, TCA cycle and amino acid biosynthesis were the most statistically enriched biological pathway in Azucena in drought response. However, in IR64, the differentially abundant metabolites of starch and sucrose metabolism were the most statistically enriched biological pathways. Metabolic marker candidates for drought tolerance were identified in both genotypes. Thus, these markers that were experimentally determined in distinct metabolic pathways can be used for the development or selection of drought-tolerant rice genotypes.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 22 100%

Demographic breakdown

Readers by professional status Count As %
Student > Doctoral Student 3 14%
Unspecified 2 9%
Student > Ph. D. Student 2 9%
Researcher 2 9%
Student > Master 2 9%
Other 2 9%
Unknown 9 41%
Readers by discipline Count As %
Agricultural and Biological Sciences 6 27%
Unspecified 2 9%
Biochemistry, Genetics and Molecular Biology 1 5%
Chemistry 1 5%
Engineering 1 5%
Other 0 0%
Unknown 11 50%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 28 March 2023.
All research outputs
#15,813,478
of 23,485,296 outputs
Outputs from BMC Genomics
#6,805
of 10,781 outputs
Outputs of similar age
#124,895
of 236,413 outputs
Outputs of similar age from BMC Genomics
#35
of 77 outputs
Altmetric has tracked 23,485,296 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 10,781 research outputs from this source. They receive a mean Attention Score of 4.7. This one is in the 28th percentile – i.e., 28% of its peers scored the same or lower than it.
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We're also able to compare this research output to 77 others from the same source and published within six weeks on either side of this one. This one is in the 25th percentile – i.e., 25% of its contemporaries scored the same or lower than it.