Midlands State University Library

Accumulation of transcription factors and cell signaling-related proteins in the nucleus during citrus-Xanthomonas interaction

Rani, T Swaroopa

Accumulation of transcription factors and cell signaling-related proteins in the nucleus during citrus-Xanthomonas interaction created by T Swaroopa Rani, P Durgeshwar and Appa Rao Podile - Journal of plant physiology Volume 184 .

The nucleus is the maestro of the cell and is involved in the modulation of cell signaling during stress. We performed a comprehensive nuclear proteome analysis of Citrus sinensis during interaction with host (Xanthomonas citri pv. citri-Xcc) and non-host (Xanthomonas oryzae pv. oryzae-Xoo) pathogens. The nuclear proteome was obtained using a sequential method of organelle enrichment and determined by nano-LC-MS/MS analysis. A total of 243 proteins accumulated differentially during citrus-Xanthomonas interaction, belonging to 11 functional groups, with signaling and transcription-related proteins dominating. MADS-box transcription factors, DEAD-box RNA helicase and leucine aminopeptidase, mainly involved in jasmonic acid (JA) responses, were in high abundance during non-host interaction (Xoo). Signaling-related proteins like serine/threonine kinase, histones (H3.2, H2A), phosphoglycerate kinase, dynamin, actin and aldolase showed increased accumulation early during Xoo interaction. Our results suggest that there is a possible involvement of JA-triggered defense responses during non-host resistance, with early recognition of the non-host pathogen.

0176-1617


Citrus--Nano-LC MS/MS--2DE

QK711.2 JOU