Reduced caterpillar damage can benefit plant bugs in Bt cotton

Scientific Reports
Michael EisenringJörg Romeis

Abstract

Bt cotton was genetically modified to produce insecticidal proteins targeting Lepidopteran pests and is therefore only minimally affected by caterpillar damage. This could lead to reduced levels of inherent, systemically inducible defensive compounds in Bt cotton which might benefit other important cotton herbivores such as plant bugs. We studied the effects of plant defense induction on the performance of the plant bug Lygus hesperus by caging nymphs on different food sources (bolls/squares) of Bt and non-Bt cotton which were either undamaged, damaged by Bt tolerant caterpillars, or treated with jasmonic acid (JA). Terpenoid induction patterns of JA-treated and L. hesperus-damaged plants were characterized for different plant structures and artificial diet assays using purified terpenoids (gossypol/heliocide H1/4) were conducted. Nymphs were negatively affected if kept on plants damaged by caterpillars or sprayed with JA. Performance of nymphs was increased if they fed on squares and by the Bt-trait which had a positive effect on boll quality as food. In general, JA-sprayed plants (but not L. hesperus infested plants) showed increased levels of terpenoids in the plant structures analyzed, which was especially pronounced in Bt ...Continue Reading

References

May 23, 2001·Journal of Agricultural and Food Chemistry·C G BensonG P Fitt
Jul 12, 2001·Journal of Chemical Ecology·C Rodriguez-SaonaT J Henneberry
Nov 27, 2002·Journal of Chemical Ecology·Cesar Rodriguez-SaonaPaul W Paré
Feb 7, 2003·Proceedings of the National Academy of Sciences of the United States of America·Yves CarrièreBruce E Tabashnik
Jan 22, 2005·Archives of Insect Biochemistry and Physiology·Livy WilliamsSteven J Crafts-Brandner
Apr 28, 2009·The Plant Journal : for Cell and Molecular Biology·Matthias ErbJurriaan Ton
Oct 15, 2010·Journal of Agricultural and Food Chemistry·Steven E Naranjo
Jul 24, 2012·Toxins·Nanasaheb P Chougule, Bryony C Bonning
Mar 15, 2013·Proceedings. Biological Sciences·Steffen HagenbucherJörg Romeis
May 1, 1996·Journal of Chemical Ecology·H T AlbornH J McAuslane
Aug 12, 2016·Ecological Applications : a Publication of the Ecological Society of America·Adam R ZeilingerDavid A Andow
Mar 9, 2017·Frontiers in Plant Science·Michael EisenringJörg Romeis
Dec 19, 2019·Bioinformatics·Ahmed A QuadeerRaymond H Y Louie

❮ Previous
Next ❯

Citations

Jun 9, 2020·Insect Science·Xiang-Wen LiYun-He Li
Oct 31, 2020·Planta·Diego Martins MagalhãesMaria Carolina Blassioli-Moraes

❮ Previous
Next ❯

Software Mentioned

R
lme4
MuMIn
gmodels
package lme4
package

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.