Role of Ladybirds in Food Security and Environmental Security DOI Open Access
Ahmad Pervez

Published: April 30, 2024

Human beings and our biodiversity have nowadays been threatened by hazardous pesticides, which are used against notorious phytophagous insect pests.To protect this loss, natural enemies, such as predators, parasitoids pathogens largely employed the insect-pests to manage their populations below level of economic threshold.This technique is referred biocontrol.Predaceous ladybirds (Coccinellidae: Coleoptera) efficient biocontrol agents found in attractive colours considered harbingers good fortune.The success stories aphidophagous not so boasting though exotic ones successfully established respective bio-geographical areas.The assessment reasons for unsuccessful releases aphid may help better understand aphid-ladybird system improve techniques involved programmes.

Language: Английский

The N‐terminal subunit of vitellogenin in planthopper eggs and saliva acts as a reliable elicitor that induces defenses in rice DOI

Jiamei Zeng,

Wenfeng Ye,

Wenhui Hu

et al.

New Phytologist, Journal Year: 2023, Volume and Issue: 238(3), P. 1230 - 1244

Published: Feb. 6, 2023

Summary Vitellogenins (Vgs) are critical for the development and fecundity of insects. As such, these essential proteins can be used by plants to reliably sense presence We addressed this with a combination molecular chemical analyses, genetic transformation, bioactivity tests, insect performance assays. The small N‐terminal subunit Vgs planthopper Nilaparvata lugens (NlVgN) was found trigger strong defense responses in rice when it enters during feeding or oviposition insect. defenses induced NlVgN not only decreased hatching rate N. eggs, but also volatile emissions plants, which rendered them attractive common egg parasitoid. VgN other planthoppers triggered same rice. further show that deposited compared induces somewhat different response, probably target appropriate developmental stage confirm is growth, development, fecundity. This study demonstrates eggs saliva acts as reliable unavoidable elicitor plant defenses. Its importance precludes evolutionary adaptions prevent detection plants.

Language: Английский

Citations

35
Monocot crop–aphid interactions: plant resilience and aphid adaptation DOI Creative Commons
De‐Fen Mou, Pritha Kundu, Lise Pingault

et al.

Current Opinion in Insect Science, Journal Year: 2023, Volume and Issue: 57, P. 101038 - 101038

Published: April 26, 2023

Language: Английский

Citations

14
Microbial changes and associated metabolic responses modify host plant adaptation in Stephanitis nashi DOI
Tong‐Pu Li,

Chen‐Hao Wang,

Jia‐Chu Xie

et al.

Insect Science, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 18, 2024

Abstract Symbiotic microorganisms are essential for the physiological processes of herbivorous pests, including pear lace bug Stephanitis nashi , which is known causing extensive damage to garden plants and fruit trees due its exceptional adaptability diverse host plants. However, specific functional effects microbiome on adaptation S. remains unclear. Here, we identified significant microbial changes in 2 different plants, crabapple cherry blossom, characterized by differences fungal diversity as well bacterial community structures, with abundant correlations between bacteria or fungi. Consistent changes, that fed blossom demonstrated decreased metabolites downregulated key metabolic pathways, such arginine mitogen‐activated protein kinase signaling pathway, were crucial plant adaptation. Furthermore, correlation analysis unveiled numerous differential metabolites, influenced interactions These bacteria, fungi, associated may modify pathways aiding results provide valuable insights into alteration function adapted contributing a better understanding pest invasion dispersal from perspective.

Language: Английский

Citations

4
Differential activation of defense responses in cucumbers by adapted versus non‐adapted lineages of the cotton‐melon aphid DOI Open Access
Qinglan Yang, Hunseung Kang, Guogui Ning

et al.

Pest Management Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 21, 2025

Abstract Background The cotton‐melon aphid, Aphis gossypii Glover, is a polyphagous pest damaging plants across over 100 families. It has multiple host‐specialized lineages, including one colonizing Malvaceae (MA) and Cucurbitaceae (CU). mechanisms underlying these host relationships remain unknown. Here, we compared defensive compounds, gene expressions aphid susceptibility of cucumbers ( Cucumis sativus L.) that were infested with both lineages for up to 14 days. Results Total jasmonic acid (JA) remained constant in CU‐infested while increased maximum 19.11 folds at 1 dpi (days post infestation) MA‐infested cucumbers. salicylic (SA) 4.42 7 2.83 Reactive oxygen species constantly higher than each time point. Genes involved defense signaling, example, MAPKs , PR‐1s WRKY genes JA SA biosynthesis, largely up‐regulated ones. Both exhibited more stylet probing, less phloem ingestion, mortality, reproduction on Conclusion MA lineage aphids elicited stronger defenses the CU aphids. A lack salivary effectors specific most likely prevents from using Identifying lineage‐specific elicitors or therefore expected unveil molecular specificity this aphid. © 2025 Society Chemical Industry.

Language: Английский

Citations

0
Host plant flooding stress in soybeans differentially impacts avirulent and virulent soybean aphid (Aphis glycines) biotypes DOI Creative Commons
Margaret T. Lewis, Jelmer W. Poelstra, Andrew P. Michel

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 10, 2025

Language: Английский

Citations

0
Chromosome-level genome assembly of soybean aphid DOI Creative Commons
Sizhe Qiu,

Ningning Wu,

Xiaodong Sun

et al.

Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 5, 2025

Soybean aphid (Aphis glycines) is one of the main pests on soybeans, which causes serious damage to soybean worldwide. The current genome quite fragmented, has impeded scientific research some extent. In this study, we assembled a chromosome-level using MGI short reads, PacBio HiFi long reads and Hi-C reads. sequence was anchored four pseudo-chromosomes, with total length 324 Mb scaffold N50 88.85 Mb. We evaluated based insecta_odb10 results show it completeness 97.2%. A 20,781 protein-coding genes were predicted in genome, 17,183 annotated at least protein database. Our work provides new genomic resource for study.

Language: Английский

Citations

0
Functional analyses of the salivary protein SaE23 in Sitobion avenae DOI

Zheming Shang,

Jingyuan Yang, Renfu Zhang

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142068 - 142068

Published: March 1, 2025

Language: Английский

Citations

0
The immune and non-immune defenses of aphids DOI
Li Ma,

Zhiqiang Lu

Advances in insect physiology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Three-dimensional interaction between Cinnamomum camphora and a sap-sucking psyllid insect (Trioza camphorae) revealed by nano-resolution volume electron microscopy DOI Creative Commons
Guan Wang, Jiansheng Guo, Hai‐Jian Huang

et al.

Communications Biology, Journal Year: 2025, Volume and Issue: 8(1)

Published: March 15, 2025

Phloem-feeding insects present significant economic threats worldwide and remain challenging to understand due their specialized feeding strategies. Significant advances in genetics, genomics, biochemistry have greatly enriched our comprehension of phloem–insect interactions. However, existing studies relying on two-dimensional discrete images limited understanding visible morphological details. In this study, we leverage volume electron microscopy (vEM) technology unveil a nanometer-resolution interaction mode between plant the phloem-feeding insect, Camphor psyllid (Trioza camphorae, Hemiptera: Psyllidae). The stylets penetrate each cell way site (sieve tube), new walls will form around salivary sheath, ultimately fusing with original remarkably thickening walls. Our reconstruction findings pit gall tissues suggest that decrease drastic increase layers are primary processes during formation. These unique set stage for robust discussion cellular response induced by insects. three-dimensional camphor tree (Cinnamomum camphora) sap-sucking insect camphorae) is revealed through utilization at nanometre resolution.

Language: Английский

Citations

0
Comprehensive annotation of olfactory and gustatory receptor genes and transposable elements revealed their evolutionary dynamics in aphids DOI

S.G. Olvera-Vazquez,

Xilong Chen,

Aurélie Mesnil

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: April 16, 2025

Abstract Understanding the molecular evolution of genes involved in parasite adaptation and role transposable elements (TEs) driving their diversification is key to unraveling how populations adapt environments. In phytophagous insects like aphids, olfactory (OR) gustatory receptor (GR) are crucial for host recognition, yet post-duplication remains insufficiently explored. Here, we analyzed 521 OR 399 GR genes, alongside TEs, across 12 aphid genomes with varying ranges. Aphid lineages broader ranges exhibited higher evolutionary rates, driven by gene family expansions linked interaction, including lipid metabolism, immune function, transposase activity. The was shaped diversifying selection, bursts positive selection followed long periods purifying consistent new hosts. originated from proximal tandem duplications, younger TE activity enriched near these compared other genomic regions, suggesting a TEs catalyzing duplications fueling diversification. star-like topology phylogenetic tree, low synteny, recent around support faster rate ORs than GRs - trend observed insect taxa. This study provides insights into mechanisms underlying aphids presents first high-quality genome assembly Dysaphis plantaginea , major apple pest, comprehensive annotation chemosensory TEs. These resources offer foundation research on evolution, insect–plant interactions.

Language: Английский

Citations

0