Early perception of stink bug damage in developing seeds of field‐grown soybean induces chemical defences and reduces bug attack

Giacometti, Romina; Barneto, Jesica Alejandra; Barriga, Lucía Guadalupe; Sardoy, Pedro; Balestrasse, Karina B.; Andrade, Andrea; Pagano, Eduardo; Alemano, Sergio; Zavala, Jorge A.

doi:10.1002/ps.4192

Cited by 38 publications

(42 citation statements)

References 45 publications

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“…N. viridula feeds on developing seeds causing yield reduction. Some protein kinases are involved in tolerance response when a developing seed is fed by the pest (Giacometti 2016).…”

Section: Performance Of Some Agronomical and Chemical Charactersmentioning

confidence: 99%

Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance and preference by Nezara viridula

Kuswantoro¹,

Ginting²,

Utomo³

et al. 2019

Biodiversitas

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Kuswantoro H, Ginting E, Utomo JS, Yusnawan E. 2019. Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance to and preference by Nezara viridula. Biodiversitas 20: 356-363. Qualitative and quantitative variations of biochemical compounds in plant organs is one of the causes leading to infestation by a certain pest which prefers to feed on particular genotypes than other genotypes. Objectives of this study is to find out the relationship of selected agronomical features and seed biochemical contents of soybean genotypes with their tolerance to Nezara viridula and also the preference of N. viridula to these genotypes. A total of 50 soybean germplasm were grown at Muneng research station during the dry season of 2016. The variability of the tested germplasm was reflected in the diversity of agronomic characters and seed biochemical contents. There was a significant positive correlation among the studied seed biochemical parameters, namely protein, methionine and cysteine contents. The protein and cysteine contents did not relate to N. viridula preference, but it was related to soybean tolerance against N. viridula. It was indicated by the insignificant positive correlation of protein and cysteine contents with the number of unfilled pods and the negative correlation of protein and cysteine contents with the ratio of number of unfilled pods to the total number of pods. Methionine content increased N. viridula preference, but it had no effect on soybean tolerance. Five genotypes, namely MLGG 0164, MLGG 0195, MLGG 0103, MLGG 0896 and MLGG 0196 were selected based on high seed biochemical contents which can be used as gene sources in soybean breeding programs. Among these five genotypes, MLGG 0195 had high protein, methionine and cysteine contents, but it was not tolerant to N. viridula. Hence, this genotype should be cultivated by controlling N. viridula optimally. MLGG 0196 had the highest methionine content, relatively high cysteine content, and N. viridula tolerance. This genotype can be used to improve seed biochemical content and plant tolerance against N. viridula.

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“…N. viridula feeds on developing seeds causing yield reduction. Some protein kinases are involved in tolerance response when a developing seed is fed by the pest (Giacometti 2016).…”

Section: Performance Of Some Agronomical and Chemical Charactersmentioning

confidence: 99%

Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance and preference by Nezara viridula

Kuswantoro¹,

Ginting²,

Utomo³

et al. 2019

Biodiversitas

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“…Low ET levels allow the negative interaction between SA and JA, which is regulated by the protein NPR1 (NONEXPRESSOR OF PATHOGENESIS‐RELATED GENES1) (Giacometti et al , ; DeLucia et al , ) (Fig. ).…”

Section: Reducing Uncertainty Of Chemical Defence Responses To Herbivorymentioning

confidence: 99%

Anthropogenic increase in carbon dioxide modifies plant-insect interactions

2016

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Industrialisation has elevated atmospheric levels of CO 2 from original 280 ppm to current levels at 400 ppm, which is estimated to double by 2050. Although high atmospheric CO 2 levels affect insect interactions with host plants, the impact of global change on plant defences in response to insect attack is not completely understood. Recent studies have made advances in elucidating the mechanisms of the effects of high CO 2 levels in plant-insect interactions. New studies have proposed that gene regulation and phytohormones regulate resource allocation from photosynthesis to plant defences against insects. Biochemical and molecular studies demonstrated that both defensive hormones jasmonic acid (JA) and ethylene (ET) participate in modulating chemical defences against herbivores in plants grown under elevated CO 2 atmosphere rather than changes in C:N ratio. High atmospheric CO 2 levels increase vulnerability to insect damage by down-regulating both inducive and constitutive chemical defences regulated by JA and ET. However, elevated CO 2 levels increase the JA antagonistic hormone salicylic acid that increases other chemical defences. How plants grown under elevated CO 2 environment allocate primary metabolites from photosynthesis to secondary metabolism would help to understand innate defences and prevent future herbivory in field crops. We present evidence demonstrating that changes in chemical defences in plants grown under elevated CO 2 environment are hormonal regulated and reject the C:N hypothesis. In addition, we discuss current knowledge of the mechanisms that regulate plants defences against insects in elevated CO 2 atmospheres.

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“…It has also been reported that N. viridula’s gut cells expresses high cysteine protease levels, while salivary glands express high levels of serine proteases and nucleases 14 . Since these stink bug enzymes can be inhibited by soybean protease inhibitors accumulated in seeds, N. viridula prefer to feed on developing seeds without induced defenses 21 .…”

Section: Introductionmentioning

confidence: 99%

“…However, it was reported in H. halys that the oral secretions did not affect the expression of pathogenesis related genes, which are inducible by salicylates 12 . We have previously shown that developing soybean seeds respond to N. viridula’s attack by recognizing the saliva and triggering JA/ethylene (ET)- and SA-regulated defenses through the mitogen activated protein kinases (MAPK) pathway 21 . After saliva detection, soybean seeds induced tailored defenses, resulting in a decreased preference for previously attacked seeds 21 , 24 .…”

Section: Introductionmentioning

confidence: 99%

Digestive activity and organic compounds of Nezara viridula watery saliva induce defensive soybean seed responses

Giacometti

Jacobi

Kronberg

et al. 2020

Sci Rep

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The stink bug Nezara viridula is one of the most threatening pests for agriculture in North and South America, and its oral secretion may be responsible for the damage it causes in soybean (Glycine max) crop. The high level of injury to seeds caused by pentatomids is related to their feeding behavior, morphology of mouth parts, and saliva, though information on the specific composition of the oral secretion is scarce. Field studies were conducted to evaluate the biochemical damage produced by herbivory to developing soybean seeds. We measured metabolites and proteins to profile the insect saliva in order to understand the dynamics of soybean-herbivore interactions. We describe the mouth parts of N. viridula and the presence of metabolites, proteins and active enzymes in the watery saliva that could be involved in seed cell wall modification, thus triggering plant defenses against herbivory. We did not detect proteins from bacteria, yeasts, or soybean in the oral secretion after feeding. These results suggest that the digestive activity and organic compounds of watery saliva may elicit a plant self-protection response. This study adds to our understanding of stink bug saliva plasticity and its role in the struggle against soybean defenses.

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Early perception of stink bug damage in developing seeds of field‐grown soybean induces chemical defences and reduces bug attack

Abstract: This study shows that stink bug damage induces seed defences, which is perceived early by MPKs that may activate defence metabolic pathways in developing seeds of field-grown soybean. © 2015 Society of Chemical Industry.

Cited by 38 publications

References 45 publications

Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance and preference by Nezara viridula

Performance of agronomical and seed biochemical traits of soybean genotypes in relation to their tolerance and preference by Nezara viridula

Anthropogenic increase in carbon dioxide modifies plant-insect interactions

Digestive activity and organic compounds of Nezara viridula watery saliva induce defensive soybean seed responses

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