Proteomics

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Proteomic responses to drought vary widely among eight diverse genotypes of rice (Oryza sativa)


ABSTRACT: Rice is a critically important food source but yields worldwide are vulnerable to periods of drought. We exposed eight genotypes of upland and lowland rice (Oryza sativa L. ssp. japonica and indica) to drought stress at the late vegetative stage and harvested leaves for protein extraction and subsequent label-free shotgun proteomics. Gene ontology analysis revealed some differentially expressed proteins were induced by drought in all eight genotypes; we speculate that these play a universal role in drought tolerance. However, some highly genotype-specific patterns of response to drought suggest that some mechanisms of metabolic reprogramming are not universal. Such proteins had largely uncharacterized functions, making them biomarker candidates for drought tolerance screens.

INSTRUMENT(S): Q Exactive

ORGANISM(S): Oryza Sativa (rice)

TISSUE(S): Plant Cell, Leaf

SUBMITTER: Sara Hamzelou  

LAB HEAD: Paul A. Haynes

PROVIDER: PXD016150 | Pride | 2020-01-17

REPOSITORIES: Pride

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Publications

Proteomic Responses to Drought Vary Widely Among Eight Diverse Genotypes of Rice (<i>Oryza sativa</i>).

Hamzelou Sara S   Pascovici Dana D   Kamath Karthik Shantharam KS   Amirkhani Ardeshir A   McKay Matthew M   Mirzaei Mehdi M   Atwell Brian J BJ   Haynes Paul A PA  

International journal of molecular sciences 20200106 1


Rice is a critically important food source but yields worldwide are vulnerable to periods of drought. We exposed eight genotypes of upland and lowland rice (<i>Oryza sativa</i> L. ssp. <i>japonica</i> and <i>indica</i>) to drought stress at the late vegetative stage, and harvested leaves for label-free shotgun proteomics. Gene ontology analysis was used to identify common drought-responsive proteins in vegetative tissues, and leaf proteins that are unique to individual genotypes, suggesting dive  ...[more]

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