Proteomics study of changes in soybean lines resistant and sensitive to Phytophthora sojae.

Proteome Sci

National Center for Soybean Improvement, National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, P.R. China.

Published: September 2011

AI Article Synopsis

  • Phytophthora sojae is a major pathogen affecting soybeans, causing significant annual financial losses globally, prompting research into how it impacts soybean hypocotyls.
  • Using proteomic techniques, 46 different proteins were found to be differentially expressed in the tolerant soybean line Yudou25 compared to the sensitive line NG6255, showcasing varying responses to infection.
  • Findings highlight the importance of proteins related to energy regulation and disease defense, offering insights into plant responses during interactions with pathogens like P. sojae.

Article Abstract

Background: Phytophthora sojae causes soybean root and stem rot, resulting in an annual loss of 1-2 billion US dollars in soybean production worldwide. A proteomic technique was used to determine the effects on soybean hypocotyls of infection with P. sojae.

Results: In the present study, 46 differentially expressed proteins were identified in soybean hypocotyls infected with P. sojae, using two-dimensional electrophoresis and matrix-assisted laser desorption/ionization tandem time of flight (MALDI-TOF/TOF). The expression levels of 26 proteins were significantly affected at various time points in the tolerant soybean line, Yudou25, (12 up-regulated and 14 down-regulated). In contrast, in the sensitive soybean line, NG6255, only 20 proteins were significantly affected (11 up-regulated and 9 down-regulated). Among these proteins, 26% were related to energy regulation, 15% to protein destination and storage, 11% to defense against disease, 11% to metabolism, 9% to protein synthesis, 4% to secondary metabolism, and 24% were of unknown function.

Conclusion: Our study provides important information on the use of proteomic methods for studying protein regulation during plant-oomycete interactions.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180303PMC
http://dx.doi.org/10.1186/1477-5956-9-52DOI Listing

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