Ontology highlight
ABSTRACT:
PROVIDER: PRJNA1110394 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR28997300_1.fastq.gz | Fastqsanger.gz | |||
| SRR28997300_2.fastq.gz | Fastqsanger.gz | |||
| SRR28997289_1.fastq.gz | Fastqsanger.gz | |||
| SRR28997289_2.fastq.gz | Fastqsanger.gz | |||
| SRR28997290_1.fastq.gz | Fastqsanger.gz |
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Project description:Peanut (Arachis hypogaea L.) is considered as a moderately salt-sensitive species and thus soil salinity can be a limiting factor for peanut cultivation. To gain insights into peanut plant physiology in response to salt stress and alleviation, we comprehensively characterized leaf relative electrolyte leakage (REC), photosynthesis, leaf transpiration, and metabolism of plants under salt stress and plants that were subjected to salt stress followed by salt alleviation period. As expected, we found that REC levels were higher when plants were subjected to salt stress compared with the untreated plants. However, in contrast to expectations, REC was even higher compared with salt treated plants when plants were transferred from salt stress to standard conditions. To decipher REC variation in response to salt stress, especial during the recovery, metabolite, and transcript variations were analyzed by GC/MS and RNA-seq method, respectively. Ninety two metabolites, among total 391 metabolites identified, varied in response to salt and 42 metabolites responded to recovery specially. Transcriptomics data showed 1,742 in shoots and 3,281 in roots transcript varied in response to salt stress and 372 in shoots and 1,386 transcripts in roots responded specifically to recovery, but not salt stress. Finally, 95 transcripts and 1 metabolite are indicated as candidates involved in REC, photosynthesis, transpiration, and Na+ accumulation variation were revealed by using the principal component analysis (PCA) and correlation analysis. This study provides valuable information on peanut response to salt stress and recovery and may inspire further study to improve salt tolerance in peanut germplasm innovation.
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Project description:Rice seedlings at 3-leaf stage were used for expression analysis in control and salt stressed (incloudling salt treatment for 3, 24hrs and recovery from cold stress for 24hrs) samples. Samples of shoots and roots from biological replicates of both genotypes were generated and the expression profiles were determined using Phalanx Rice OneArrayï¼ v1. Control and treated biological replicates of salt-tolerant cultivar TNG67 (japonica) and salt-sensitive cultivar TCN1 (indica) were analyzed
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Project description:Soil salinity is one of the major factors that limits area of cultivable land and yield potential of crops. Considered as a moderately salt sensitive economically-important crop, biological processes involved in salt stress response in peanut remain elusive. Publishing of the genomic sequence of cultivar peanut represent a new opportunity for further research. ABA INSENSITIVE 4 (ABI4) is an evolutionary conserved transcription factor. Mutation of ABI4 in Arabidopsis enhanced salt tolerance of seedlings significantly by targeting and down-regulating of HKT1;1. However, few achievements were reported in other aspects. In this study, AhABI4s in peanut were first cloned and silenced via virus-induced gene silencing method. Phenotype analysis showed that down-regulation of AhABI4s enhanced salt tolerance of peanut significantly. According to proteome and phosphoproteome analysis, expression of 1,900 proteins and 2,620 phosphorylation sites were predicted to be affected by silencing of AhABI4s under salt stress. Proteins with ion transporting activity were enriched by GO analysis. Further analysis showed that, 31 proteins may participate in homeostasis maintain of Na+, K+, Ca2+, H+ and Cl- in plant cells. Combined transcriptome and proteome analysis indicated that 63 genes may regulated by AhABI4s directly and 7 of them, ABI5-like5, RABA1f, SCAMP3, PK, RP-S26e, HSP70, cysteine proteinase inhibitor, were able to interact with the predicted ion transporters. Silencing of AhABI4s altered down-stream protein-protein interaction network to regulate expression/phosphorylation level of ion transporters, and finally influence homeostasis under salt stress. This work provides novel insights for salt response mechanism research and offer important evidence for protein function study.
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