Methyl Jasmonate Enhances the Resistance of Populus alba var. pyramidalis Against Anoplophora glabripennis (Coleoptera: Cerambycidae)

Insects, Год журнала: 2025, Номер 16(2), С. 153 - 153

Опубликована: Фев. 3, 2025

Populus alba var. pyramidalis (PaP) is a very important and main planted tree species in northwestern China. However, it has been threatened by Asian longhorned beetle Anoplophora glabripennis (ALB) infestation. A feasible way to protect PaP improving its own insect resistance ability. In order achieve this goal, we first checked whether ALB could induce the defense system of comparing ALB-attracted volatiles before after infestation through collection identification gas chromatography–mass spectrometry (GC-MS). We found that attractant (Z)-3-hexenol (Z3H) (Z)-3-hexen-1-yl acetate (Z3HA) decreased 72.99% 74.53% infestation, respectively. Then, contents plant hormones salicylic acid (SA), jasmonic (JA), methyl salicylate (MeSA), jasmonate (MeJA) substances hydrogen peroxide (H2O2), peroxidase (POD), total superoxide dismutase (T-SOD) phloem were determined high-performance liquid (HPLC-MS) manufacturer’s kit, The results showed quantities SA decreased, but JA MeJA increased 2.1 times 3.02 times, respectively, increase H2O2 POD was also significant. Therefore, hypothesized might be closely related induced PaP. Further exogenous spraying on feeding oviposition adults significantly PaP, confirming improve PaP’s against ALB. concentration effect 10−4 mol/L treatment strongest results. Our clearly demonstrated response poplar wood borer provide an alternative method future.

Язык: Английский

---

Impacts of Climate Change Conditions on the Potential Distribution of Anoplophora glabripennis and Its Host Plants, Salix babylonica and Salix matsudana, in China

Ecology and Evolution, Год журнала: 2024, Номер 14(12)

Опубликована: Дек. 1, 2024

ABSTRACT The Anoplophora glabripennis (Motschulsky) is a phytophagous pest that seriously endangering Salix babylonica Linn. and S. matsudana Koidz. Poor control can damage local ecosystems, resulting in economic losses management risks. In the context of climate change, climatic ecological niche organisms no longer compatible with surrounding environment. To mitigate effects some respond adaptively to change through different mechanisms ways. this study, an optimized MaxEnt model was used explore potential distribution areas A. its host plants, , response current future determine their movement routes relative dynamics. results show exhibits lowest complexity excellent prediction accuracy. It important note both temperature precipitation are main environmental factors affecting suitable habitats for plants. This evidenced by mean warmest quarter wettest month being Similarly, minimum coldest seasonality primary bioclimatic variables constraining dispersal . Under declining, while expanding climates. Furthermore, three species exhibited proclivity migration higher latitudes change. conclusion, study contributes our understanding biogeographic characteristics these provides basis formulation timely conservation strategies reduce impacts great significance rational management, utilization, protection forest ecosystems China.

Язык: Английский

---

PdPLR1 effectively enhances resistance of Populus deltoides ‘Shalinyang’ to Anoplophora glabripennis by postive regulation of lignan synthesisPopulus deltoides ‘Shalinyang’

Plant Physiology and Biochemistry, Год журнала: 2024, Номер 214, С. 108944 - 108944

Опубликована: Июль 17, 2024

Язык: Английский

---

Unravelling the secrets of non-host resistance in plant-insect interactions

Journal of Experimental Botany, Год журнала: 2024, Номер unknown

Опубликована: Авг. 23, 2024

Despite the existence of over half million species plant-eating insects, our planet remains predominantly green. In fact, susceptibility to herbivory is exception, as plants are resistant most insect species. This phenomenon known nonhost resistance (NHR), where every individual a plant all variants pest or pathogen. While NHR represents common and durable outcome immune system, several aspects this type defence elusive, particularly in plant-insect interactions. review, we clarify concepts interaction. We emphasize that arising consequence effective defences providing invulnerability herbivores. underscores one main ecological features delimiting range interactions on Earth. further highlight traits molecular components system participate against insects. Finally, discuss how can be leveraged tool develop resilient crops. Given significant threat insects pose global food security, research crucial focal point with immense potential for ensuring security worldwide.

Язык: Английский

---

Attract and kill trees? No simple solution for Anoplophora glabripennis (Coleoptera: Cerambycidae) control

Environmental Entomology, Год журнала: 2024, Номер unknown

Опубликована: Авг. 17, 2024

Abstract Anoplophora glabripennis (Motschulsky), the Asian longhorned beetle, is a serious wood-boring pest of hardwood trees. There have been records that suggest Elaeagnus angustifolia L. (Elaeagnaceae) might be an “attract and kill” tree species for A. glabripennis, i.e., attractive to adults but kills their oviposited eggs. To evaluate possibility E. as control measure we carried out series behavioral experiments in laboratory field. Results showed that: (i) females preferred branches leaves over poplar evaluated; weight feces from both female male feeding on was significantly higher than those Populus deltoides ‘Shalinyang’ or alba. var. pyramidalis; (ii) average lifespan males longer other host trees (iii) oviposition choice experiment, there were fewer egg notch grooves P. ‘Shalinyang‘, made without eggs; (iv) field, number 43.6 ± 18.1 per stem, eggs laid only 14.4 6.4 stem; (v) Field surveys existing mixed forests when planted with pyramidalis simonii × (Populus + Salix matsudana) ‘Poparis’ forest, varieties suffered greater infestation angustifolia. Therefore, not suitable attract kill extensively glabripennis.

Язык: Английский

---

Behavioural Response of Aromia bungii Adults to Volatile Compounds Emitted by Prunus persica at Different Physiological Statuses

Journal of Applied Entomology, Год журнала: 2024, Номер unknown

Опубликована: Окт. 13, 2024

ABSTRACT Aromia bungii is a serious wood borer damaging Prunus persica and other numerous economic tree species. Host plant volatiles play key role in pest population monitoring trapping. To ascertain the influence of volatile organic compounds emitted by P . at varying physiological statuses on host‐searching behaviour A adults, we initially collected identified leaves infested with using gas chromatography–mass spectrometry. Subsequently, evaluated behavioural response adults to crude extracts, single blends these Y‐tube olfactometer bioassay. Results showed that from larvae Grade I were more attractive females, but males attracted IV. Five relatively high levels both plants Among them, 3‐carene, cis ‐3‐hexen‐1‐ol ‐3‐hexenyl acetate blend three ratio 3:91:6 for infestation was females than 3:83:14 IV infestation. The compounds, acetate, ‐3‐hexene‐1‐ol benzaldehyde, 3:81:13:3 3:89:6:2 results show kinds ratios important roles adults.

Язык: Английский

---