Physical interaction of RTBV ORFI with D1 protein of Oryza sativa and Fe/Zn homeostasis play a key role in symptoms development during rice tungro disease to facilitate the insect mediated virus transmission.

Autor: Srilatha P; Professor Jayashankar Telangana State Agricultural University, Hyderabad 500030, India., Yousuf F; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Methre R; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Vishnukiran T; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Agarwal S; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Poli Y; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Raghurami Reddy M; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Vidyasagar B; Professor Jayashankar Telangana State Agricultural University, Hyderabad 500030, India., Shanker C; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Krishnaveni D; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Triveni S; Professor Jayashankar Telangana State Agricultural University, Hyderabad 500030, India., Brajendra; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Praveen S; ICAR-Indian Agricultural Research Institute, New Delhi 110012, India., Balachandran SM; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Subrahmanyam D; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India., Mangrauthia SK; ICAR-Indian Institute of Rice Research, Hyderabad 500030, India. Electronic address: Satendra.KM@icar.gov.in.
Jazyk: angličtina
Zdroj: Virology [Virology] 2019 Jan 02; Vol. 526, pp. 117-124. Date of Electronic Publication: 2018 Oct 26.
DOI: 10.1016/j.virol.2018.10.012
Abstrakt: Rice tungro disease is caused by the combined action of Rice tungro bacilliform virus (RTBV) and Rice tungro spherical virus (RTSV). The RTBV is involved in the development of symptoms while RTSV is essential for virus transmission. We attempted to study the mode of action of RTBV in the development of symptoms. The tungro disease symptoms were attributed to viral interference in chlorophyll and carotenoids biosynthesis, photosynthesis machinery, iron/zinc homeostasis, and the genes encoding the enzymes associated with these biological processes of rice. The adverse effects of virus infection in photosystem II (PSII) activity was demonstrated by analyzing the Fv/Fm ratio, expression of psbA and cab1R genes, and direct interaction of RTBV ORF I protein with the D1 protein of rice. Since ORF I function is not yet known in the RTBV life cycle, this is the first report showing its involvement in regulating host photosynthesis process and symptoms development.
(Copyright © 2018 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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