Dataset Information

Comparative proteomics of salt stressed own rooted and 110R grafted Thompson Seedless grapevines

ABSTRACT: Salt stress is a rising threat to agriculture system. The accumulation of salts near the plant roots hampers the normal uptake of water causing osmotic stress and ionic toxicity to the plant. Thompson Seedless is a popular table grape variety of Vitis vinifera L., which is sensitive to salt stress when grown on its own roots; grafting it onto a wild rootstock such as 110 Richtor (110R) makes it tolerant to salt stress. In the present study, shotgun-proteomics approach was used for the investigation of salt stress induced molecular response of own rooted and 110R grafted Thompson Seedless grapevines. A salt stress experiment was conducted on sixteen month old potted grapevines. The grapevines were treated with 150mM NaCl solution for seven days and the control vines were irrigated with tap water. The young leaf samples were collected from control and treated vines at three time-points viz. 6 hours, 48 hours and 7 days of salt stress. The stress responsive proteins identified through statistical analysis revealed a distinct response to salinity in both the vines.

INSTRUMENT(S): Synapt MS

ORGANISM(S): Vitis Vinifera (grape)

TISSUE(S): Leaf

SUBMITTER: Sucheta Patil

LAB HEAD: Vidya Shrikant Gupta

PROVIDER: PXD015515 | Pride | 2020-01-27

REPOSITORIES: Pride

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Publications

Comparative Proteomics Unravels the Differences in Salt Stress Response of Own-Rooted and 110R-Grafted Thompson Seedless Grapevines.

Patil Sucheta S Shinde Manisha M Prashant Ramya R Kadoo Narendra N Upadhyay Anuradha A Gupta Vidya V

Journal of proteome research 20191220 2

Thompson Seedless, a commonly grown table grape variety, is sensitive to salinity when grown on its own roots, and therefore, it is frequently grafted onto salinity-tolerant wild grapevine rootstocks. Rising soil salinity is a growing concern in irrigated agricultural systems. The accumulation of salts near the root zone severely hampers plant growth, leading to a decrease in the productive lifespan of grapevine and causing heavy yield losses to the farmer. In the present study, we investigated ...[more]

PMID: 31808345

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Project description:We performed a time course analysis (TC data set) of the response of whole seedling roots to 140mM NaCl at 5 time points after transfer (30 minutes, 1, 4, 16 and 32 hours). Cells are amazingly adept at integrating both external and internal cues to regulate transcriptional states. While internal processes such as differentiation and cell-type specification are generally understood to have an important impact on gene expression, very little is known about how cells utilize these developmental cues to regulate responses to external stimuli. Here we use the response to a well characterized environmental stress, high salinity, to obtain a global view of the role that cell identity plays in guiding transcriptional responses in the root of Arabidopsis. Our analysis is based on three microarray data sets we have generated that explore transcriptional changes spatially among 6 cell layers and 4 longitudinal regions or temporally along 5 time points after salt treatment. We show that the majority of the response to salt stress is cell-type specific resulting in the differential regulation of unique biological functions in subsets of cell layers. To understand the regulatory mechanisms controlling these responses we have analyzed cis-element enrichment in the promoters of salt responsive genes and demonstrate that known stress regulatory elements likely control responses to salt occurring in multiple cell types. Despite the extensive shift in transcriptional state that salt stress elicits, we are able to identify several biological processes that consistently define each cell layer and find that transcriptional regulators of cell-identity tend to exhibit robust cell-type specific expression. Finally, using mutants that disrupt cell-type specification in the epidermis, we reveal cell autonomous and non-autonomous effects when cell identity is altered. Together, these data elucidate a novel intersection between physiology and development and expand our understanding of how transcriptional states are regulated in a multi-cellular context. Experiment Overall Design: Seedlings were grown for 4-5 days before transfer to standard media supplemented with 140 mM NaCl. Whole roots were harvested at 5 time points after the transfer.

Project description:Background The homeodomain leucine zipper (HD-Zip) transcription factor family is one of the largest plant specific superfamilies, and includes genes with roles in modulation of plant growth and response to environmental stresses. Many HD-Zip genes are characterized in Arabidopsis (Arabidopsis thaliana), and members of the family are being investigated for abiotic stress responses in rice (Oryza sativa), maize (Zea mays), poplar (Populus trichocarpa) and cucumber (Cucmis sativus). Findings in these species suggest HD-Zip genes as high priority candidates for crop improvement. Results In this study we have identified members of the HD-Zip gene family in soybean cv. 'Williams 82', and characterized their expression under dehydration and salt stress. Homology searches with BLASTP and Hidden Markov Model guided sequence alignments identified 101 HD-Zip genes in the soybean genome. Phylogeny reconstruction coupled with domain and gene structure analyses using soybean, Arabidopsis, rice, grape (Vitis vinifera), and Medicago truncatula homologues enabled placement of these sequences into four previously described subfamilies. Of the 101 HD-Zip genes identified in soybean, 88 exist as whole-genome duplication-derived gene pairs, indicating high retention of these genes following polyploidy in Glycine ~10 Mya. The HD-Zip genes exhibit ubiquitous expression patterns across 24 conditions that include 17 tissues of soybean. An RNA-Seq experiment performed to study differential gene expression at 0, 1, 6 and 12 hr soybean roots under dehydration and salt stress identified 20 differentially expressed (DE) genes. Several of these DE genes are orthologs of genes previously reported to play a role under abiotic stress, implying conservation of HD-Zip gene functions across species. Screening of HD-Zip promoters identified transcription factor binding sites that are overrepresented in the DE genes under both dehydration and salt stress, providing further support for the role of HD-Zip genes in abiotic stress responses. Conclusions We provide a thorough description of soybean HD-Zip genes, and identify potential candidates with probable roles in dehydration and salt stress. Expression profiles generated for all soybean genes, under dehydration and salt stress, at four time points, will serve as an important resource for the soybean research community, and will aid in understanding plant responses to abiotic stress. We sequenced mRNA from soybean cv. "Williams 82" root samples that includes three control samples (0 hr), and three biological replicates for each of the three time points 1, 6 and 12 hr under dehydration and salt stress

Dataset Information

Comparative proteomics of salt stressed own rooted and 110R grafted Thompson Seedless grapevines

Publications

Comparative Proteomics Unravels the Differences in Salt Stress Response of Own-Rooted and 110R-Grafted Thompson Seedless Grapevines.

Similar Datasets

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