The mealybug Phenacoccus solenopsis suppresses plant defense responses by manipulating JA-SA crosstalk

Scientific Reports
Peng-Jun ZhangYao-Bin Lu

Abstract

Induced plant defenses against herbivores are modulated by jasmonic acid-, salicylic acid-, and ethylene-signaling pathways. Although there is evidence that some pathogens suppress plant defenses by interfering with the crosstalk between different signaling pathways, such evidence is scarce for herbivores. Here, we demonstrate that the mealybug Phenacoccus solenopsis suppresses the induced defenses in tomato. We found that exogenous JA, but not SA, significantly decreased mealybug feeding time and reduced nymphal performance. In addition, constitutive activation of JA signaling in 35s::prosys plants reduced mealybug survival. These data indicate that the JA signaling pathway plays a key role in mediating the defense responses against P. solenopsis. We also found that mealybug feeding decreased JA production and JA-dependent defense gene expression, but increased SA accumulation and SA-dependent gene expression. In SA-deficient plants, mealybug feeding did not suppress but activated JA accumulation, indicating that the suppression of JA-regulated defenses depends on the SA signaling pathway. Mealybugs benefit from suppression of JA-regulated defenses by exhibiting enhanced nymphal performance. These findings confirm that P. sole...Continue Reading

References

Dec 1, 1989·Proceedings of the National Academy of Sciences of the United States of America·R JohnsonC Ryan
Sep 12, 1995·Proceedings of the National Academy of Sciences of the United States of America·E BellJ E Mullet
Mar 6, 1999·Current Opinion in Plant Biology·P Reymond, E E Farmer
Apr 12, 2002·Nature·Richard O MusserGary W Felton
Aug 16, 2002·Current Opinion in Plant Biology·Barbara N Kunkel, David M Brooks
Sep 12, 2002·Annual Review of Plant Biology·André Kessler, Ian T Baldwin
Jan 1, 2004·Plant Physiology·Keyan Zhu-SalzmanHisashi Koiwa
Jun 7, 2005·Plant Physiology·Anna BlockHarry J Klee
Feb 10, 2006·Journal of Experimental Botany·W Fred Tjallingii
Nov 23, 2007·Annual Review of Plant Biology·Gregg A Howe, Georg Jander
Mar 5, 2008·Plant Physiology·Annemart Koornneef, Corné M J Pieterse
Jun 10, 2008·Plant Physiology·Annemart KoornneefCorné M J Pieterse
Dec 8, 2009·Proceedings of the National Academy of Sciences of the United States of America·Peng-Jun ZhangMarcel Dicke
Jan 13, 2010·Molecular Plant-microbe Interactions : MPMI·Antonio Leon-ReyesTita Ritsema
Mar 17, 2010·The Plant Journal : for Cell and Molecular Biology·Friederike BruessowPhilippe Reymond
Nov 9, 2011·Proceedings of the National Academy of Sciences of the United States of America·Akiko SugioSaskia A Hogenhout
Apr 14, 2012·Trends in Plant Science·Jennifer S ThalerNoah K Whiteman
Sep 11, 2013·Proceedings of the National Academy of Sciences of the United States of America·Seung Ho ChungGary W Felton
Sep 10, 2014·Journal of Economic Entomology·Fang HuangYaobin Lu
Sep 11, 2014·Frontiers in Plant Science·Marília Almeida TrappAxel Mithöfer

❮ Previous
Next ❯

Citations

Oct 21, 2017·Scientific Reports·Surjeet Kumar AryaPraveen Chandra Verma
Nov 22, 2017·The Plant Journal : for Cell and Molecular Biology·Elia StahlPhilippe Reymond
Sep 16, 2017·Journal of Agricultural and Food Chemistry·Yong ZhangJulian Chen
Aug 28, 2021·International Journal of Molecular Sciences·Yun WangBiao Jin

❮ Previous
Next ❯

Methods Mentioned

BETA
transgenic
PCR

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.