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Molecular Interactions between Plants and Arthropod Herbivores
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Molecular Interactions between Plants and Arthropod Herbivores

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 8603

Special Issue Editor

Prof. Dr. Manuel Martinez

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Guest Editor
Centro de Biotecnología y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Universidad Politécnica de Madrid, UPM, 28223 Madrid, Spain
Interests: molecular plant–pest interactions; plant proteolysis; comparative genomics; signalling pathways; Arabidopsis; barley
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Understanding how plants recognize and respond to environmental stresses is one of the major challenges in plant research. In particular, the defensive response of the plant to the attack of phytophagous arthropods is underexplored. Arthropods herbivores, including mites and insects, are responsible for substantial losses in crop productivity, and novel strategies are necessary to minimize the impact of herbivory. These approaches should be based on a deeper knowledge of the mechanisms underlying the molecular interactions between plants and herbivores. The final goal is the characterization of genes and regulatory networks that control critical processes affecting the response of the plant, such as molecular perception, signaling pathways, hormonal regulation, transcriptional rewiring, or secondary metabolites production. Thus, this Special Issue aims to report novel research and reviews focused on understanding the molecular interplay between plants and arthropod herbivores.

Prof. Dr. Manuel Martínez Muñoz
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Plant defense
  • Arthropod herbivores
  • Molecular interactions
  • Plant perception
  • Signaling pathways
  • Hormonal regulation
  • Transcriptional regulation
  • Defensive molecules

Published Papers (3 papers)

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Research

14 pages, 2571 KiB  
Article
Tobacco Hornworm (Manduca sexta) Oral Secretion Elicits Reactive Oxygen Species in Isolated Tomato Protoplasts
by Akanksha Gandhi, Rupesh R. Kariyat, Cruz Chappa, Mandeep Tayal and Nirakar Sahoo
Int. J. Mol. Sci. 2020, 21(21), 8297; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21218297 - 05 Nov 2020
Cited by 14 | Viewed by 3183
Abstract
Plants are under constant attack by a suite of insect herbivores. Over millions of years of coexistence, plants have evolved the ability to sense insect feeding via herbivore-associated elicitors in oral secretions, which can mobilize defense responses. However, herbivore-associated elicitors and the intrinsic [...] Read more.
Plants are under constant attack by a suite of insect herbivores. Over millions of years of coexistence, plants have evolved the ability to sense insect feeding via herbivore-associated elicitors in oral secretions, which can mobilize defense responses. However, herbivore-associated elicitors and the intrinsic downstream modulator of such interactions remain less understood. In this study, we show that tobacco hornworm caterpillar (Manduca sexta) oral secretion (OS) induces reactive oxygen species (ROS) in tomato (Solanum lycopersicum) protoplasts. By using a dye-based ROS imaging approach, our study shows that application of plant-fed (PF) M. sexta OS generates significantly higher ROS while artificial diet-fed (DF) caterpillar OS failed to induce ROS in isolated tomato protoplasts. Elevation in ROS generation was saturated after ~140 s of PF OS application. ROS production was also suppressed in the presence of an antioxidant NAC (N-acetyl-L-cysteine). Interestingly, PF OS-induced ROS increase was abolished in the presence of a Ca2+ chelator, BAPTA-AM (1,2-bis(o-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid). These results indicate a potential signaling cascade involving herbivore-associated elicitors, Ca2+, and ROS in plants during insect feeding. In summary, our results demonstrate that plants incorporate a variety of independent signals connected with their herbivores to regulate and mount their defense responses. Full article
(This article belongs to the Special Issue Molecular Interactions between Plants and Arthropod Herbivores)
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21 pages, 2851 KiB  
Article
Differential Defense Responses of Upland and Lowland Switchgrass Cultivars to a Cereal Aphid Pest
by Lise Pingault, Nathan A. Palmer, Kyle G. Koch, Tiffany Heng-Moss, Jeffrey D. Bradshaw, Javier Seravalli, Paul Twigg, Joe Louis and Gautam Sarath
Int. J. Mol. Sci. 2020, 21(21), 7966; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21217966 - 27 Oct 2020
Cited by 4 | Viewed by 2669
Abstract
Yellow sugarcane aphid (YSA) (Sipha flava, Forbes) is a damaging pest on many grasses. Switchgrass (Panicum virgatum L.), a perennial C4 grass, has been selected as a bioenergy feedstock because of its perceived resilience to abiotic and biotic stresses. Aphid [...] Read more.
Yellow sugarcane aphid (YSA) (Sipha flava, Forbes) is a damaging pest on many grasses. Switchgrass (Panicum virgatum L.), a perennial C4 grass, has been selected as a bioenergy feedstock because of its perceived resilience to abiotic and biotic stresses. Aphid infestation on switchgrass has the potential to reduce the yields and biomass quantity. Here, the global defense response of switchgrass cultivars Summer and Kanlow to YSA feeding was analyzed by RNA-seq and metabolite analysis at 5, 10, and 15 days after infestation. Genes upregulated by infestation were more common in both cultivars compared to downregulated genes. In total, a higher number of differentially expressed genes (DEGs) were found in the YSA susceptible cultivar (Summer), and fewer DEGs were observed in the YSA resistant cultivar (Kanlow). Interestingly, no downregulated genes were found in common between each time point or between the two switchgrass cultivars. Gene co-expression analysis revealed upregulated genes in Kanlow were associated with functions such as flavonoid, oxidation-response to chemical, or wax composition. Downregulated genes for the cultivar Summer were found in co-expression modules with gene functions related to plant defense mechanisms or cell wall composition. Global analysis of defense networks of the two cultivars uncovered differential mechanisms associated with resistance or susceptibility of switchgrass in response to YSA infestation. Several gene co-expression modules and transcription factors correlated with these differential defense responses. Overall, the YSA-resistant Kanlow plants have an enhanced defense even under aphid uninfested conditions. Full article
(This article belongs to the Special Issue Molecular Interactions between Plants and Arthropod Herbivores)
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19 pages, 3200 KiB  
Article
A Genome-Wide View of Transcriptional Responses during Aphis glycines Infestation in Soybean
by Luming Yao, Biyun Yang, Xiaohong Ma, Shuangshuang Wang, Zhe Guan, Biao Wang and Yina Jiang
Int. J. Mol. Sci. 2020, 21(15), 5191; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms21155191 - 22 Jul 2020
Cited by 7 | Viewed by 2439
Abstract
Soybean aphid (Aphis glycines Matsumura) is one of the major limiting factors in soybean production. The mechanism of aphid resistance in soybean remains enigmatic as little information is available about the different mechanisms of antibiosis and antixenosis. Here, we used genome-wide gene [...] Read more.
Soybean aphid (Aphis glycines Matsumura) is one of the major limiting factors in soybean production. The mechanism of aphid resistance in soybean remains enigmatic as little information is available about the different mechanisms of antibiosis and antixenosis. Here, we used genome-wide gene expression profiling of aphid susceptible, antibiotic, and antixenotic genotypes to investigate the underlying aphid–plant interaction mechanisms. The high expression correlation between infested and non-infested genotypes indicated that the response to aphid was controlled by a small subset of genes. Plant response to aphid infestation was faster in antibiotic genotype and the interaction in antixenotic genotype was moderation. The expression patterns of transcription factor genes in susceptible and antixenotic genotypes clustered together and were distant from those of antibiotic genotypes. Among them APETALA 2/ethylene response factors (AP2/ERF), v-myb avian myeloblastosis viral oncogene homolog (MYB), and the transcription factor contained conserved WRKYGQK domain (WRKY) were proposed to play dominant roles. The jasmonic acid-responsive pathway was dominant in aphid–soybean interaction, and salicylic acid pathway played an important role in antibiotic genotype. Callose deposition was more rapid and efficient in antibiotic genotype, while reactive oxygen species were not involved in the response to aphid attack in resistant genotypes. Our study helps to uncover important genes associated with aphid-attack response in soybean genotypes expressing antibiosis and antixenosis. Full article
(This article belongs to the Special Issue Molecular Interactions between Plants and Arthropod Herbivores)
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