scholarly journals Tetranins: new putative spider mite elicitors of host plant defense

2019 ◽  
Vol 224 (2) ◽  
pp. 875-885 ◽  
Author(s):  
Junya Iida ◽  
Yoshitake Desaki ◽  
Kumiko Hata ◽  
Takuya Uemura ◽  
Ayano Yasuno ◽  
...  
Keyword(s):  
Plant Defense ◽  
Host Plant ◽  
Spider Mite

scholarly journals The race goes on: A fall armyworm-resistant maize inbred line influences insect oral secretion elicitation activity and nullifies herbivore suppression of plant defense

2021 ◽  
Author(s):  
Saif ul Malook ◽  
Xiao-Feng Liu ◽  
Wende Liu ◽  
Jinfeng Qi ◽  
Shaoqun Zhou
Keyword(s):  
Plant Defense ◽  
Host Plant ◽  
Inbred Line ◽  
Defense Mechanisms ◽  
Molecular Mechanisms ◽  
Fall Armyworm ◽  
Defense Responses ◽  
Feeding Preference ◽  
Maize Inbred Line ◽  
Oral Secretion

Fall armyworm (Spodoptera frugiperda) is an invasive lepidopteran pest with strong feeding preference towards maize (Zea mays). Its success on maize is facilitated by a suite of specialized detoxification and manipulation mechanisms that curtail host plant defense responses. In this study, we identified a Chinese maize inbred line Xi502 that was able to mount effective defense in response to fall armyworm attack. Comparative transcriptomics analyses, phytohormonal measurements, and targeted benzoxazinoid quantification consistently demonstrate significant inducible defense responses in Xi502, but not in the susceptible reference inbred line B73. In 24 hours, fall armyworm larvae feeding on B73 showed accelerated maturation-oriented transcriptomic responses and more changes in detoxification gene expression compared to their Xi502-fed sibling. Interestingly, oral secretions collected from larvae fed on B73 and Xi502 leaves demonstrated distinct elicitation activity when applied on either host genotypes, suggesting that variation in both insect oral secretion composition and host plant alleles could influence plant defense response. These results revealed host plant adaptation towards counter-defense mechanisms in a specialist insect herbivore, adding yet another layer to the evolutionary arms race between maize and fall armyworm. This could facilitate future investigation into the molecular mechanisms in this globally important crop-pest interaction system.

Double infection of Wolbachia and Spiroplasma alters induced plant defense and spider mite fecundity

2020 ◽  
Vol 76 (9) ◽  
pp. 3273-3281
Author(s):  
Yu‐Xi Zhu ◽  
Zhang‐Rong Song ◽  
Yue‐Ling Song ◽  
Xiao‐Yue Hong
Keyword(s):  
Plant Defense ◽  
Spider Mite ◽  
Double Infection ◽  
Induced Plant Defense

scholarly journals A link between host plant adaptation and pesticide resistance in the polyphagous spider mite Tetranychus urticae

2012 ◽  
Vol 110 (2) ◽  
pp. E113-E122 ◽  
Author(s):  
W. Dermauw ◽  
N. Wybouw ◽  
S. Rombauts ◽  
B. Menten ◽  
J. Vontas ◽  
...  
Keyword(s):  
Host Plant ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Pesticide Resistance ◽  
Plant Adaptation ◽  
Host Plant Adaptation

scholarly journals Effects of the virus satellite gene βC1 on host plant defense signaling and volatile emission

2013 ◽  
Vol 8 (3) ◽  
pp. e23317 ◽  
Author(s):  
Lucie Salvaudon ◽  
Consuelo M. De Morae ◽  
Jun-Yi Yang ◽  
Nam-Hai Chua ◽  
Mark C. Mescher
Keyword(s):  
Plant Defense ◽  
Host Plant ◽  
Defense Signaling ◽  
Volatile Emission ◽  
Plant Defense Signaling

Host plant resistance among tomato accessions to the spider mite Tetranychus evansi in Kenya

2011 ◽  
Vol 54 (4) ◽  
pp. 385-393 ◽  
Author(s):  
G. K. Onyambus ◽  
R. O. Maranga ◽  
L. M. Gitonga ◽  
M. Knapp
Keyword(s):  
Host Plant ◽  
Plant Resistance ◽  
Host Plant Resistance ◽  
Spider Mite ◽  
Tetranychus Evansi

scholarly journals Inbreeding and learning affect fitness and colonization of new host plants, a behavioral innovation in the spider mite Tetranychus urticae

2021 ◽  
Author(s):  
Caroline M. Nieberding ◽  
Aubin Kaisin ◽  
Bertanne Visser
Keyword(s):  
Genetic Variability ◽  
Host Plant ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Extinction Risk ◽  
Natural Populations ◽  
Learning Ability ◽  
Plant Colonization ◽  
New Host ◽  
Novel Host

Habitat fragmentation increases the isolation of natural populations resulting in reduced genetic variability and increased species extinction risk. Behavioral innovation through learning, i.e., the expression of a new learned behavior in a novel context, can help animals colonize new suitable and increasingly fragmented habitats. It has remained unclear, however, how reduced genetic variability affects learning for colonizing more or less suitable habitats. Here, we show that inbreeding in a subsocial invertebrate, the spider mite Tetranychus urticae, reduces novel host plant colonization and reproductive fitness. When provided with the possibility to learn from previous experience with a host plant species, outbred mites showed aversive learning ability, but inbred mites did not adapt their behavior. We further found a putative general cost of learning in both inbred and outbred mites. Our results reveal that inbreeding affects the learning component of behavioral innovation for host plant colonization.

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