Record Details

Tomato auxin biosynthesis/signaling is reprogrammed by the geminivirus to enhance its pathogenicity

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Tomato auxin biosynthesis/signaling is reprogrammed by the geminivirus to enhance its pathogenicity
Not Available
 
Creator Vinutha T, Vanchinathan S, Bansal N, Kumar G, Permar V, Watts A, Ramesh SV, Praveen S.
 
Subject Pathogenicity factor, Phytohormones, AC4 · miRNAs, Host–virus interactions
 
Description Not Available
Perturbations of phytohormone-mediated gene regulatory network cause growth and developmental defects. Furthermore,plant viral infections cause characteristic disease symptoms similar to hormone-deficient mutants. Tomato leafcurl New Delhi Virus (ToLCNDV)-encoded AC4 is a small protein that attenuates the host transcriptional gene silencing, and aggravated disease severity in tomato is correlated with transcript abundance of AC4. Hence, investigating the role of AC4 in pathogenesis divulged that ToLCNDV-AC4 interacted with host TAR1 (tryptophan amino transferase 1)-like protein,
CYP450 monooxygenase—the key enzyme of indole acetic acid (IAA) biosynthesis pathway—and with a protein encoded
by senescence-associated gene involved in jasmonic acid pathway. Also, ToLCNDV infection resulted in the upregulation of
host miRNAs, viz., miR164, miR167, miR393 and miR319 involved in auxin signaling and leaf morphogenesis concomitant
with the decline in endogenous IAA levels. Ectopic overexpression of ToLCNDV-derived AC4 in tomato recapitulated the
transcriptomic and disruption of auxin biosynthesis/signaling features of the infected leaves. Furthermore, exogenous foliar
application of IAA caused remission of the characteristic disease-related symptoms in tomato. The roles of ToLCNDV-AC4
in reprogramming auxin biosynthesis, signaling and cross-talk with JA pathway to help viral replication and manifest the
disease-associated symptoms during ToLCNDV infection are discussed.
Not Available
 
Date 2021-01-07T09:50:06Z
2021-01-07T09:50:06Z
2020-09-17
 
Type Article
 
Identifier Not Available
https://doi.org/10.1007/s00425-020-03452-9
1432-2048
http://krishi.icar.gov.in/jspui/handle/123456789/44625
 
Language English
 
Relation 252-51;
 
Publisher springer