Integrated view of plant metabolic defense with particular focus on chewing herbivores

Wari, David; Aboshi, Takako; Shinya, Tomonori; Gàlis, Ivan

doi:10.1111/jipb.13204

Cited by 29 publications

(19 citation statements)

References 395 publications

(452 reference statements)

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“…An important distinction regarding the function of phytochemicals in interactions is that compounds may function as toxins, or as information (Raguso et al 2015, Kessler and Kalske 2018), which for insect herbivores affect their performance and preference, respectively. Although such a classification is a simplification, this distinction is important because the role of phytochemical diversity might differ for compounds that when consumed have direct negative physiological effects on consumers (Wari et al 2021), compared to the most often volatile compounds acting as cues or signals providing information to herbivores and pollinators (Wilson et al 2015). Among studies testing for functional effects of phytochemical diversity, only a few have done it in an information context (Table S1), examining how variation in both individual and community level volatile diversity can deter herbivores (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Crucial to this will be to better understand the links between molecular structure and function, further examine the role of synergistic effects, and test if structurally diverse sets of compounds also have broader function or more potent effects (Berenbaum and Zangerl 1996, Liu and Zhao 2016, Philbin et al 2022). Understanding this, in turn, requires an increased understanding on how phytochemicals function mechanistically on a physiological and molecular level (Mithöfer and Boland 2012, Wari et al 2021).…”

Section: Introductionmentioning

confidence: 99%

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Understanding the phytochemical diversity of plants: Quantification, variation and ecological function

Petrén

Anaia

Aragam

et al. 2023

Preprint

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Plants produce a great number of phytochemical compounds mediating a variety of different functions. Recently, phytochemical diversity (chemodiversity), a way which to quantify the complex phenotype formed by sets of phytochemicals, has been suggested to be important for function. However, no study has systematically examined the potential (in)direct functional importance of chemodiversity on a general level, partly due to a lack of an agreement on how to quantify this aspect of the plant phenotype. This paper has four aims: 1) We discuss how chemodiversity (deconstructed into components of richness, evenness and disparity) may quantify different aspects of the phenotype that are ecologically relevant. 2) We systematically review the literature on chemodiversity to examine methodological practices, explore ecological patterns of variability in diversity across different levels of biological organization, and investigate the functional role of this diversity in interactions between plants and other organisms. 3) We provide a framework facilitating decisions on which measure of chemodiversity is best used in different contexts. 4) We outline open questions and avenues for future research in this area. A more thorough understanding of phytochemical diversity will increase our knowledge on the functional role phytochemical compounds, and how they shape ecological interactions between plants and their environment.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Understanding the phytochemical diversity of plants: Quantification, variation and ecological function

Petrén

Anaia

Aragam

et al. 2023

Preprint

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show abstract

“…The effect of silencing OsDREB1A in rice on the performance of BPH—which is larger in plants grown at 17°C than at 28°C—might be related to differences in levels of BPH‐elicited JA and JA‐Ile between irDREB and WT plants grown at 17°C. JA, ethylene and ABA signalling pathways regulate the biosynthesis of many defensive compounds, such as terpenoids and phenolics (Divekar et al, 2022; Erb & Reymond, 2019; He et al, 2022; Wari et al, 2022). Moreover, a number of DREB/CBFs, including OsDREB1A, are known to promote plants' resistance to cold by increasing the content of amino acids and soluble sugars (Feng et al, 2019; Ito et al, 2006; Lata & Prasad, 2011; Wang et al, 2022), compounds that benefit BPH fitness (Chen et al, 2011; Huang et al, 2015; Liu et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

Silencing a dehydration‐responsive element‐binding gene enhances the resistance of plants to a phloem‐feeding herbivore

Zhou

Gao

Chen

et al. 2023

Plant Cell & Environment

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Herbivore‐induced plant defence responses share common components with plant responses to abiotic stresses. However, whether abiotic stress‐responsive factors influence the resistance of plants to herbivores by regulating these components remains largely unknown. Here, we cloned a dehydration‐responsive element‐binding gene in rice, OsDREB1A, and investigated its role in the resistance of rice to the phloem‐feeding herbivore, brown planthopper (BPH, Nilaparvata lugens), under normal and low temperatures. We found that OsDREB1A localized to the nucleus, and its transcripts in rice were up‐regulated in response to BPH infestation, low temperatures and treatment with methyl jasmonate or salicylic acid. Silencing OsDREB1A changed transcript levels of two defence‐related WRKY and two PLD genes, enhanced levels of jasmonic acid (JA), JA‐isoleucine and abscisic acid, and decreased the ethylene level in rice; these changes subsequently enhanced the resistance of plants to BPH, especially at 17°C, by decreasing the hatching rate and delaying the development of BPH eggs. Moreover, silencing OsDREB1A increased the growth of rice plants. These findings suggest that OsDREB1A, which positively regulates the resistance of rice to abiotic stresses, negatively regulates the resistance of rice to BPH.

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“…It is well established that plants and herbivores are in a constant battle for survival [1][2][3][4]. The former keeps adapting their chemistry to defend against the latter, which sparks the rise of extensive specialized metabolites (mainly secondary metabolites) currently found in plants.…”

Section: Introductionmentioning

confidence: 99%

Tolerance to dietary linalool primarily involves co-expression of cytochrome P450s and cuticular proteins in Pagiophloeus tsushimanus (Coleoptera: Curculionidae) larvae using SMRT sequencing and RNA-seq

Chen

et al. 2023

BMC Genomics

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Background Pagiophloeus tsushimanus (Coleoptera: Curculionidae), an emerging forest pest exclusively infesting camphor trees, has recently caused severe ecological and economic damage in localized areas in China. Its population outbreak depends largely on the capacity to overcome the pressure of terpenoid-derived metabolites (e.g. linalool) from camphor trees. At present, the molecular basis of physiological adaptation of P. tsushimanus to dietary linalool is poorly understood, and there is no available reference genome or transcriptome. Results Herein, we constructed the transcriptome profiling of P. tsushimanus larvae reared on linalool-infused diets using RNA sequencing and single-molecule real-time sequencing. A total of 20,325 high-quality full-length transcripts were identified as a reference transcriptome, of which 14,492 protein-coding transcripts including 130 transcription factors (TFs), and 5561 long non-coding RNAs (lncRNAs) were detected. Also, 30 alternative splicing events and 8049 simple sequence repeats were captured. Gene ontology enrichment of differential expressed transcripts revealed that overall up-regulation of both cytochrome P450s (CYP450s) and cuticular proteins (CPs), was the primary response characteristic against dietary linalool. Other physiological effects possibly caused by linalool exposure, such as increase in Reactive Oxygen Species (ROS) and hormetic stimulation, were compensated by a handful of induced genes encoding antioxidases, heat shock proteins (HSPs), juvenile hormone (JH) epoxide hydrolases, and digestive enzymes. Additionally, based on co-expression networks analysis, a diverse array of hub lncRNAs and TFs co-expressed with CYP450s and CPs were screened as the potential gene regulators. Temporal expression of candidate transcripts determined by quantitative real-time PCR also indicated a cooperative relationship between the inductions of CYP450s and CPs upon exposure to linalool. Conclusions Our present study provides an important transcriptome resource of P. tsushimanus, and lays a valuable foundation for understanding how this specialist pest copes with chemical challenges in its specific host environments.

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Integrated view of plant metabolic defense with particular focus on chewing herbivores

Cited by 29 publications

References 395 publications

Understanding the phytochemical diversity of plants: Quantification, variation and ecological function

Understanding the phytochemical diversity of plants: Quantification, variation and ecological function

Silencing a dehydration‐responsive element‐binding gene enhances the resistance of plants to a phloem‐feeding herbivore

Tolerance to dietary linalool primarily involves co-expression of cytochrome P450s and cuticular proteins in Pagiophloeus tsushimanus (Coleoptera: Curculionidae) larvae using SMRT sequencing and RNA-seq

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