Transcriptional profiling reveals elevated CO2 and elevated O3 alter resistance of soybean (Glycine max) to Japanese beetles (Popillia japonica)

Casteel, Clare L.; O’Neill, Bridget; Zavala, Jorge A.; Bilgin, Damla D.; Berenbaum, May R.; DeLucia, Evan H.

doi:10.1111/j.1365-3040.2008.01782.x

Cited by 78 publications

(73 citation statements)

References 65 publications

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“…Transcriptional changes involved in flavonoid and isoflavonoid biosynthesis supported our findings that abundance increased after beetle damage (e.g., putative flavonol synthase, 2′-hydroxydihydrodaidzein reductase, isoflavone reductase-like protein), with or without elevated CO 2 , and increased flavonol biosynthesis (e.g., flavonol synthase-like oxidoreductase) under elevated CO 2 conditions (Casteel et al 2008).…”

Section: Discussionsupporting

confidence: 82%

“…In a separate study, tissue from plants in the beetle treatments from this experiment was examined via microarray to investigate transcriptional responses to elevated CO 2 and leaf skeletonization (Casteel et al 2008). Transcriptional changes involved in flavonoid and isoflavonoid biosynthesis supported our findings that abundance increased after beetle damage (e.g., putative flavonol synthase, 2′-hydroxydihydrodaidzein reductase, isoflavone reductase-like protein), with or without elevated CO 2 , and increased flavonol biosynthesis (e.g., flavonol synthase-like oxidoreductase) under elevated CO 2 conditions (Casteel et al 2008).…”

Section: Discussionmentioning

confidence: 99%

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Impact of Elevated Levels of Atmospheric CO2 and Herbivory on Flavonoids of Soybean (Glycine max Linnaeus)

et al. 2010

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Atmospheric levels of carbon dioxide (CO2) have been increasing steadily over the last century. Plants grown under elevated CO2 conditions experience physiological changes, particularly in phytochemical content, that can influence their suitability as food for insects. Flavonoids are important plant defense compounds and antioxidants that can have a large effect on leaf palatability and herbivore longevity. In this study, flavonoid content was examined in foliage of soybean (Glycine max Linnaeus) grown under ambient and elevated levels of CO2 and subjected to damage by herbivores in three feeding guilds: leaf skeletonizer (Popillia japonica Newman), leaf chewer (Vanessa cardui Linnaeus), and phloem feeder (Aphis glycines Matsumura). Flavonoid content also was examined in foliage of soybean grown under ambient and elevated levels of O3 and subjected to damage by the leaf skeletonizer P. japonica. The presence of the isoflavones genistein and daidzein and the flavonols quercetin and kaempferol was confirmed in all plants examined, as were their glycosides. All compounds significantly increased in concentration as the growing season progressed. Concentrations of quercetin glycosides were higher in plants grown under elevated levels of CO2. The majority of compounds in foliage were induced in response to leaf skeletonization damage but remained unchanged in response to non-skeletonizing feeding or phloem-feeding. Most compounds increased in concentration in plants grown under elevated levels of O3. Insects feeding on G. max foliage growing under elevated levels of CO2 may derive additional antioxidant benefits from their host plants as a consequence of the change in ratios of flavonoid classes. This nutritional benefit could lead to increased herbivore longevity and increased damage to soybean (and perhaps other crop plants) in the future.

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Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Impact of Elevated Levels of Atmospheric CO2 and Herbivory on Flavonoids of Soybean (Glycine max Linnaeus)

et al. 2010

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“…An extension of this approach has recently been demonstrated in a microarray analysis of field-grown soybean (Glycine max), in which it was shown that the number of transcripts in the leaves affected by herbivory by Japanese beetles (Popillia japonica) was greater when plants were grown under elevated CO 2 , elevated O 3 and the combination of elevated CO 2 pluselevated O 3 than when grown in ambient atmosphere (Casteel et al, 2008). Interestingly, expression of a GLP sequence (Affymetrix IDGma.15727.1.S1 at) was reduced in response to insect damage.…”

Section: E Insectsmentioning

confidence: 97%

Germin and Germin-like Proteins: Evolution, Structure, and Function

Dunwell

Gibbings

Mahmood

et al. 2008

Critical Reviews in Plant Sciences

203

161

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“…Moreover, the progressive inhibitors of the activity of enzymes of nitrogen metabolism, NiR and GDH, were two other key genes in our study. Some researchers have reported that NiR is up-regulated in soybean [37] and GDH is changed in paper birth [36] under elevated CO 2 . In addition, the key gene AS plays an important role in amino-acid biosynthesis.…”

Section: Discussionmentioning

confidence: 99%

Genes Responsive to Elevated CO2 Concentrations in Triploid White Poplar and Integrated Gene Network Analysis

Liu

Zhang

et al. 2014

PLoS ONE

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BackgroundThe atmospheric CO2 concentration increases every year. While the effects of elevated CO2 on plant growth, physiology and metabolism have been studied, there is now a pressing need to understand the molecular mechanisms of how plants will respond to future increases in CO2 concentration using genomic techniques.Principal FindingsGene expression in triploid white poplar ((Populus tomentosa ×P. bolleana) ×P. tomentosa) leaves was investigated using the Affymetrix poplar genome gene chip, after three months of growth in controlled environment chambers under three CO2 concentrations. Our physiological findings showed the growth, assessed as stem diameter, was significantly increased, and the net photosynthetic rate was decreased in elevated CO2 concentrations. The concentrations of four major endogenous hormones appeared to actively promote plant development. Leaf tissues under elevated CO2 concentrations had 5,127 genes with different expression patterns in comparison to leaves under the ambient CO2 concentration. Among these, 8 genes were finally selected for further investigation by using randomized variance model corrective ANOVA analysis, dynamic gene expression profiling, gene network construction, and quantitative real-time PCR validation. Among the 8 genes in the network, aldehyde dehydrogenase and pyruvate kinase were situated in the core and had interconnections with other genes.ConclusionsUnder elevated CO2 concentrations, 8 significantly changed key genes involved in metabolism and responding to stimulus of external environment were identified. These genes play crucial roles in the signal transduction network and show strong correlations with elevated CO2 exposure. This study provides several target genes, further investigation of which could provide an initial step for better understanding the molecular mechanisms of plant acclimation and evolution in future rising CO2 concentrations.

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Transcriptional profiling reveals elevated CO₂ and elevated O₃ alter resistance of soybean (Glycine max) to Japanese beetles (Popillia japonica)

Cited by 78 publications

References 65 publications

Impact of Elevated Levels of Atmospheric CO2 and Herbivory on Flavonoids of Soybean (Glycine max Linnaeus)

Impact of Elevated Levels of Atmospheric CO2 and Herbivory on Flavonoids of Soybean (Glycine max Linnaeus)

Germin and Germin-like Proteins: Evolution, Structure, and Function

Genes Responsive to Elevated CO2 Concentrations in Triploid White Poplar and Integrated Gene Network Analysis

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