Dataset Information

Sequence Analysis of a Jumbo Bacteriophage, Xoo-sp14, That Infects Xanthomonas oryzae pv. oryzae.

ABSTRACT: A jumbo bacteriophage, Xoo-sp14, infecting Xanthomonas oryzae pv. oryzae was isolated from rice fields in China. Here, we report the complete genome sequence of this phage, revealing that it had a linear double-stranded DNA (dsDNA) molecule 232,104?bp long, with a G+C content of 58%. It has 251 annotated protein-coding sequences.

SUBMITTER: Nazir A

PROVIDER: S-EPMC7686423 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Sequence Analysis of a Jumbo Bacteriophage, Xoo-sp14, That Infects Xanthomonas oryzae pv. oryzae.

Nazir Amina A Dong Zhaoxia Z Liu Jin J Zhang Xianglilan X Tahir Rana Adnan RA Ashraf Neelma N Qing Hong H Peng Donghai D Tong Yigang Y

Microbiology resource announcements 20201125 48

A jumbo bacteriophage, Xoo-sp14, infecting Xanthomonas oryzae pv. oryzae was isolated from rice fields in China. Here, we report the complete genome sequence of this phage, revealing that it had a linear double-stranded DNA (dsDNA) molecule 232,104 bp long, with a G+C content of 58%. It has 251 annotated protein-coding sequences. ...[more]

PMID: 33239465

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Project description:BackgroundRice bacterial blight (BB) caused by Xanthomonas oryzae pv.oryzae (Xoo) is one of the most devastating bacterial diseases in rice-growing regions worldwide. The rice-Xoo interaction is a classical model for studying the interaction between plants and pathogens. Secreted proteins play important roles in plant-bacterial interactions, but are poorly studied in the rice-Xoo system. Rice cv. Nipponbare is highly susceptible to Xoo. Here, we used two-dimensional difference gel electrophoresis (2D-DIGE) coupled with MALDI-TOF/TOF mass spectrometry (MS), to investigate secreted proteins in Nipponbare embryo cell suspension culture infected by Xoo.ResultsA total of 32 protein spots changed significantly (p < 0.05) by more than 1.5 fold in gel intensity after Xoo inoculation, and were identified by MS. They represent protein products of 11 unique genes, seven from rice and four from Xoo. Of the rice proteins, six up-regulated proteins are involved in cell wall modification, the TCA cycle, glycolysis and redox, while a down-regulated protein, CHIT16, is involved in plant defense. Quantitative Real-Time PCR showed that transcript levels were not correlated with secreted protein levels. Of the Xoo proteins, three of them were possibly located in the extracellular space as shown by transient expression assays in rice protoplasts. Two of the Xoo proteins were previously reported to be likely involved in pathogenicity, and the third gene, Xoo3654, is likely a negative regulator of Xoo virulence as its overexpression reduced Xoo pathogenicity in our study.ConclusionAmong the secreted proteins that responded to Xoo inoculation, we identified rice proteins involved in cell defense and Xoo proteins involved in pathogenicity. Our study also showed that Xoo3654 (X2) protein is likely a novel negative regulator of Xoo virulence. These results not only help us better understand the interaction between susceptible rice and Xoo, but also serve as a reference for studying the interaction between other plants and their pathogens.

Dataset Information

Sequence Analysis of a Jumbo Bacteriophage, Xoo-sp14, That Infects Xanthomonas oryzae pv. oryzae.

Publications

Sequence Analysis of a Jumbo Bacteriophage, <i>Xoo-sp14,</i> That Infects Xanthomonas oryzae pv. oryzae.

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