Deciphering Plant-Insect-Microorganism Signals for Sustainable Crop Production

Thomas, Gareth O.; Rusman, Quint; Morrison, William R.; Magalhães, Diego Martins; Dowell, Jordan A.; Ngumbi, Esther; Osei-Owusu, Jonathan; Kansman, Jessica; Gaffke, Alexander M.; Jayanthi, P. D. Kamala; Kim, Seong Jong; Tabanca, Nurhayat

doi:10.3390/biom13060997

Cited by 10 publications

(7 citation statements)

References 225 publications

(266 reference statements)

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“…Plant protection from pathogens is an ongoing challenge (Thomas et al 2023). An analysis is presented here that identified predicted PGIP protein families of important crop plants.…”

Section: The Determination Of Pgip Protein Families In Agriculturally...mentioning

confidence: 99%

Glycine maxpolygalacturonase inhibiting protein 11 (GmPGIP11) functions in the root to suppressHeterodera glycinesparasitism

Acharya,

Troell,

Billingsley

et al. 2024

Preprint

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Pathogen-secreted polygalacturonases (PGs) alter plant cell wall structure by cleaving the α- (1→4) linkages between D-galacturonic acid residues in homogalacturonan (HG), macerating the cell wall, facilitating infection. Plant PG inhibiting proteins (PGIPs) disengage pathogen PGs, impairing infection. The soybean cyst nematode,Heterodera glycines,obligate root parasite produces secretions, generating a multinucleate nurse cell called a syncytium, a byproduct of the merged cytoplasm of 200-250 root cells, occurring through cell wall maceration. The common cytoplasmic pool, surrounded by an intact plasma membrane, provides a source from whichH. glycinesderives nourishment but without killing the parasitized cell during a susceptible reaction. The syncytium is also the site of a naturally-occurring defense response that happens in specificG. maxgenotypes. Transcriptomic analyses of RNA isolated from the syncytium undergoing the process of defense have identified that one of the 11G. max PGIPs,GmPGIP11, is expressed during defense. Functional transgenic analyses show roots undergoingGmPGIP11overexpression (OE) experience an increase in its relative transcript abundance (RTA) as compared to theribosomal protein 21(GmRPS21) control, leading to a decrease inH. glycinesparasitism as compared to the overexpression control. TheGmPGIP11undergoing RNAi experiences a decrease in its RTA as compared to theGmRPS21control with transgenic roots experiencing an increase inH. glycinesparasitism as compared to the RNAi control. Pathogen associated molecular pattern (PAMP) triggered immunity (PTI) and effector triggered immunity (ETI) components are shown to influenceGmPGIP11expression while numerous agricultural crops are shown to have homologs.

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“…Plant protection from pathogens is an ongoing challenge (Thomas et al 2023). An analysis is presented here that identified predicted PGIP protein families of important crop plants.…”

Section: The Determination Of Pgip Protein Families In Agriculturally...mentioning

confidence: 99%

Glycine maxpolygalacturonase inhibiting protein 11 (GmPGIP11) functions in the root to suppressHeterodera glycinesparasitism

Acharya,

Troell,

Billingsley

et al. 2024

Preprint

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“…Stemborer pests oviposit heavily in this species despite the strong mortality experienced by the developing larvae. Other companion plants can be used to attract parasitoid wasps of the stemborer pests (Sobhy et al, 2022;Thomas et al, 2023). Due to the constitutive emission of plant volatiles generally included in HIPV blends, parasitoid wasps are attracted to such companion plants even in the absence of hosts, but there is always the risk that parasitoids would learn to avoid such unreliable cues (Poelman et al, 2023) Shelton & Nault, 2004), and radish (Raphanus sativus) against pollen beetles (Meligethes spp.)…”

Section: E Xploitati On Of Percep Ti On Error S Of For Ag Ing In S Ec...mentioning

confidence: 99%

En route to resources: Foraging strategies of plant‐associated insects to identify resources in complex dynamic environments

Rusman,

Cusumano,

Vosteen

2024

Functional Ecology

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In plant‐associated communities, foraging insects aim to find different resources of interest. Herbivores look for the most nutritious plant tissues, pollinators for sweet nectar and protein‐rich pollen, and carnivores for their preferred prey. Although these foragers look for different resources, they face similar problems: resource cues are often highly variable and need to be detected in complex environments among non‐resources. Search templates—a subset of stimuli that is likely correlated with the occurrence of a particular resource—help foragers across trophic levels to find their resources. However, search‐template‐based foraging can also cause perception errors. Here, we synthesize knowledge on foraging by insects from functional groups belonging to different trophic levels to reveal common problems experienced by foragers and strategies to solve such problems. We focus mostly on volatile‐based foraging because this searching strategy is best studied across functional groups. We argue that search templates are both multimodal (including multiple trait types, e.g. odour and visual) and hierarchical (including multiple foraging steps). Search templates are plastic and updated by experience to match the dynamic foraging environment over time. By comparing insects from different functional groups spanning multiple trophic levels, we have identified important missing gaps on cue use and foraging strategies which should be addressed in the future in order to reduce knowledge asymmetries among functional groups about search‐template‐based foraging. We propose a way to achieve this goal arguing that studies on less well investigated functional groups can advance rapidly by borrowing, testing and adjusting already available hypotheses and theories formulated for other insect groups. Knowledge of search‐template‐based foraging across functional groups will give new insights into the evolution of foraging behaviour in complex ecological communities, help predict ecological consequences of large‐scale human‐made disturbances and help optimize insect‐delivered ecosystem services (pollination and biological control) in cropping systems. Read the free Plain Language Summary for this article on the Journal blog.

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“…Different strains of B. bassiana emit VOCs with varied functional and structural complexity [ 10 , 11 , 12 ]. Nevertheless, the most abundant compounds belong to the alcohol family.…”

Section: Introductionmentioning

confidence: 99%

Volatile Semiochemicals Emitted by Beauveria bassiana Modulate Larval Feeding Behavior and Food Choice Preference in Spodoptera frugiperda (Lepidoptera: Noctuidae)

Ramírez-Ordorica,

Adame-Garnica,

Ramos-Aboites

et al. 2024

JoF

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Beauveria bassiana is an entomopathogenic fungus that parasitizes and kills insects. The role of volatile organic compounds (VOCs) emitted by B. bassiana acting as semiochemicals during its interaction with lepidopterans is poorly explored. Here, we studied the effect of VOCs from B. bassiana and 3-methylbutanol (as a single compound) on the feeding behavior of L2 larvae of Spodoptera frugiperda in sorghum plants. Additionally, we assessed whether fungal VOCs induce chemical modifications in the plants that affect larval food preferences. Metabolomic profiling of plant tissues was performed by mass spectrometry and bioassays in a dual-choice olfactometer. The results showed that the larval feeding behavior was affected by the B. bassiana strain AI2, showing that the insect response is strain-specific. Furthermore, 80 µg of 3-methylbutanol affected the number of bites. The larval feeding choice was dependent on the background context. Fragment spectra and a matching precursor ion mass of 165.882 m/z enabled the putative identification of 4-coumaric acid in sorghum leaves exposed to fungal VOCs, which may be associated with larval deterrent responses. These results provide valuable insights into the bipartite interaction of B. bassiana with lepidopterans through VOC emission, with the plant as a mediator of the interaction.

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Deciphering Plant-Insect-Microorganism Signals for Sustainable Crop Production

Cited by 10 publications

References 225 publications

Glycine maxpolygalacturonase inhibiting protein 11 (GmPGIP11) functions in the root to suppressHeterodera glycinesparasitism

Glycine maxpolygalacturonase inhibiting protein 11 (GmPGIP11) functions in the root to suppressHeterodera glycinesparasitism

En route to resources: Foraging strategies of plant‐associated insects to identify resources in complex dynamic environments

Volatile Semiochemicals Emitted by Beauveria bassiana Modulate Larval Feeding Behavior and Food Choice Preference in Spodoptera frugiperda (Lepidoptera: Noctuidae)

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