Transcription Control Mechanisms for Plant Stress Responses

Cheong, Jong-Joo

doi:10.3390/ijms24076824

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…Plant endogenous hormones also play an important regulatory role under salt stress conditions and can improve the activity of related protective enzymes by inducing the relevant defense system or enhancing the resistance to alleviate salt damage and relieve the salt stress by improving the ion absorption and distribution of cells [ 8 , 9 , 10 , 11 , 12 ]. Plants are different from animals; to resist abiotic and biotic stresses derived from the environment, they have developed a fine, efficient, and complete defense system during the long evolutionary process [ 13 ], and many protective enzymes play important roles in stress resistance in plants [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis and Salt-Tolerance Gene Mining during Rice Germination

Han

Liu

et al. 2023

Genes

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Salt stress is an important environmental factor affecting crop growth and development. One of the important ways to improve the salt tolerance of rice is to identify new salt-tolerance genes, reveal possible mechanisms, and apply them to the creation of new germplasm and the breeding of new varieties. In this study, the salt-sensitive japonica variety Tong 35 (T35) and salt-tolerant japonica variety Ji Nongda 709 (JND709) were used. Salt stress treatment with a 150 mmol/L NaCl solution (the control group was tested without salt stress treatment simultaneously) was continued until the test material was collected after the rice germination period. Twelve cDNA libraries were constructed, and 5 comparator groups were established for transcriptome sequencing. On average, 9.57G of raw sequencing data were generated per sample, with alignment to the reference genome above 96.88% and alignment to guanine-cytosine (GC) content above 53.86%. A total of 16,829 differentially expressed genes were present in the five comparison groups, of which 2390 genes were specifically expressed in T35 (category 1), 3306 genes were specifically expressed in JND709 (category 2), and 1708 genes were differentially expressed in both breeds (category 3). Differentially expressed genes were subjected to gene ontology (GO), functional enrichment analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, which revealed that these genes belonged to three main classes: molecular function, cellular components, and biological processes. KEGG pathway analysis showed that the significantly enriched pathways for these differentially expressed genes included phenylpropane biosynthesis, phytohormone signaling, and the interaction of plants with pathogens. In this study, we provided a reference for studying the molecular mechanism underlying salt tolerance during germination.

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Section: Introductionmentioning

confidence: 99%

Transcriptomic Analysis and Salt-Tolerance Gene Mining during Rice Germination

Han

Liu

et al. 2023

Genes

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Genome-wide analysis of the Tritipyrum NAC gene family and the response of TtNAC477 in salt tolerance

Liu,

Zhou,

Chen

et al. 2024

BMC Plant Biol

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NAC transcription factors are widely distributed in the plant kingdom and play an important role in the response to various abiotic stresses in plant species. Tritipyrum, an octoploid derived from hybridization of Triticum aestivum (AABBDD) and Thinopyrum elongatum (EE), is an important genetic resource for integrating the desirable traits of Th. elongatum into wheat. In this study, we investigated the tissue distribution and expression of Tritipyrum NAC genes in the whole genomes of T. aestivum and Th. elongatum after obtaining their complete genome sequences. Based on phylogenetic relationships, conserved motifs, gene synthesis, evolutionary analysis, and expression patterns, we identified and characterized 732 Tritipyrum NAC genes. These genes were divided into six main groups (A, B, C, D, E, and G) based on phylogenetic relationships and evolutionary studies, with members of these groups sharing the same motif composition. The 732 TtNAC genes are widely distributed across 28 chromosomes and include 110 duplicated genes. Gene synthesis analysis indicated that the NAC gene family may have a common ancestor. Transcriptome data and quantitative polymerase chain reaction (qPCR) expression profiles showed 68 TtNAC genes to be highly expressed in response to various salt stress and recovery treatments. Tel3E01T644900 (TtNAC477) was particularly sensitive to salt stress and belongs to the same clade as the salt tolerance genes ANAC019 and ANAC055 in Arabidopsis. Pearson correlation analysis identified 751 genes that correlated positively with expression of TtNAC477, and these genes are enriched in metabolic activities, cellular processes, stimulus responses, and biological regulation. TtNAC477 was found to be highly expressed in roots, stems, and leaves in response to salt stress, as confirmed by real-time PCR. These findings suggest that TtNAC477 is associated with salt tolerance in plants and might serve as a valuable exogenous gene for enhancing salt tolerance in wheat.

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Transcription Control Mechanisms for Plant Stress Responses

Abstract: Plants have their roots fixed in the soil, so they are unable to escape from adverse environments [...]

Cited by 2 publications

References 5 publications

Transcriptomic Analysis and Salt-Tolerance Gene Mining during Rice Germination

Transcriptomic Analysis and Salt-Tolerance Gene Mining during Rice Germination

Genome-wide analysis of the Tritipyrum NAC gene family and the response of TtNAC477 in salt tolerance

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