Extraction and assessment of Rudbeckia hirta extracts’ larvicidal activity on lackey moth (Malacosoma neustria Testacea): toxicity, nutritional effects and enzyme activities DOI Creative Commons

Yajun Wang,

HUNG HAI PHAM,

Weihu Ma

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: March 19, 2024

Abstract The insecticidal activity of Rudbeckia hirta has been confirmed, however, it not adequately studied. In the present study, we optimized extraction conditions and analyzed chemical constituents ethanol extracts R. (RHE), activities RHE on Malacosoma neustria Testacea larvae were investigated, safety for non-target aquatic organisms evaluated. results indicated that optimal liquid-solid ratio: 41.4:1 (mL:g), temperature: 41.4°C, time: 51.99 min, under this condition, actual rate was 30.27%. contains 22 compounds, flavone flavonoid derivatives accounting 75.47% total compound contents. More importantly, had a significant biotoxic effect instar M. Testacea, value LC50 6.437 mg/mL at 72 h post-treatment. also significantly affected larval feeding, digestion, nutrient uptake, six nutritional indices (LWG, RGR, ECI, RCR, AD, AR) RHE-treated suppressed. Under stress RHE, detoxification enzyme (ACP, AKP, GST) remarkably inhibited, as well (CAT, POD, SOD) suppressed in vivo within after treatment. Safety experiments showed practically nontoxic to Danio rerio. Taken together, antifeeding can be developed an environmentally friendly botanical insecticide control.

Language: Английский

Environmental and Genetic Factors Involved in Plant Protection-Associated Secondary Metabolite Biosynthesis Pathways DOI Creative Commons

Xiaori Zhan,

Zhehao Chen, Rong Chen

et al.

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: April 8, 2022

Plant specialized metabolites (PSMs) play essential roles in the adaptation to harsh environments and function plant defense responses. PSMs act as key components of defense-related signaling pathways trigger extensive expression genes. In addition, serve antioxidants, participating scavenging rapidly rising reactive oxygen species, chelators, chelation toxins under stress conditions. include nitrogen-containing chemical compounds, terpenoids/isoprenoids, phenolics. Each category secondary has a specific biosynthetic pathway, including precursors, intermediates, end products. The basic representative are summarized, providing potential target enzymes stress-mediated regulation Multiple metabolic share same origin, common frequently be targets regulation. Most controlled by different environmental genetic factors. Here, we summarized effects factors, abiotic biotic stresses, on PSM biosynthesis various plants. We also discuss positive negative transcription factors involved pathways. genes stress-related were summarized. further found that downstream these Transcription (TFs) enriched synthesis pathway suggesting an effective role precursors enhancing terminal present review provides valuable insights regarding screening regulators PSM-mediated protection non-model

Language: Английский

Citations

66
Phenolic amides (avenanthramides) in oats – an update review DOI Open Access
Xi Xie,

Miaoyan Lin,

Gengsheng Xiao

et al.

Bioengineered, Journal Year: 2024, Volume and Issue: 15(1)

Published: Jan. 23, 2024

Oats (

Language: Английский

Citations

6
Seed priming with rutin enhances tomato resistance against the whitefly Bemisia tabaci DOI
Juan Tang, Haowei Shen, Rong Zhang

et al.

Pesticide Biochemistry and Physiology, Journal Year: 2023, Volume and Issue: 194, P. 105470 - 105470

Published: May 15, 2023

Language: Английский

Citations

13
Therapeutics of bitter plants from Northeast region of India and their pharmacological and phytochemical perspectives DOI Creative Commons
Bhaskar Das,

Bharat G Somkuwar,

Sushil Kumar Chaudhary

et al.

Pharmacological Research, Journal Year: 2025, Volume and Issue: unknown, P. 107626 - 107626

Published: Jan. 1, 2025

Language: Английский

Citations

0
Enhancing essential oil production in rosemary (Rosmarinus officinalis L.) with salicylic acid and methyl jasmonate and its relationship to spectral indices DOI Creative Commons
Jutiporn Thussagunpanit,

Nittaya Chookoh,

Wariya Donsri

et al.

Folia Horticulturae, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

ABSTRACT Rosemary is a widely used herb known for its diverse health benefits, attributed to essential oil content. However, cultivating rosemary requires careful attention environmental conditions, particularly in regions with unpredictable climates such as high temperatures. This study explored the potential of salicylic acid (SA) and methyl jasmonate (MeJA) optimise cultivation, based on their impact growth, physiological changes, production. plants were grown an experimental field Phetchabun province, Thailand. Shrubs foliar-applied SA or MeJA at 0, 0.01, 0.1, 1 mM two times (5 months 6 months, respectively, after transplanting). Growth parameters, photosynthetic pigments, spectral indices, estimated. Essential was extracted using steam distillation. Statistical analyses consisted one-way Analysis Variance (ANOVA) Pearson’s correlation coefficient significance set p < 0.05. Based results, application specific concentrations significantly impacted while there no significant differences among pigments. treated 0.01 had higher R425 R450 indices than control. Applying (1 mM) (0.01 enhanced In addition, contents highly correlated changes indices. conclusion, impacts growth content rosemary. The can be further utilised estimate oil.

Language: Английский

Citations

0
Population Dynamics of Galerucella birmanica and Its Aggregation Behavior in Brasenia schreberi Aquaculture System DOI Creative Commons
Yini Wang, Yahong Wang, Changfang Zhou

et al.

Insects, Journal Year: 2025, Volume and Issue: 16(4), P. 371 - 371

Published: April 1, 2025

The aquatic vegetable Brasenia schreberi Gmel. (Nymphaeales: Cabombaceae), widely cultivated in China, faces severe challenges from pest disturbances. With a field investigation, G. birmanica occurred for several generations the mono-cultivation system. first visual peak on leaf surfaces appeared July, with eggs, larvae, pupae and adults all being recorded. highest number of flying were trapped August reverse to absence beetles leaves, followed by an extraordinary high eggs September. exhibited conspicuous aggregation distribution, severely chewed areas having abundance 21.6 times that non-chewed areas. Laboratory studies GC–MS two-choice tests revealed four volatiles significantly discrepant contents released chewed/intact leaves: cis-3-hexenyl acetate (917.33 ± 29.56 vs. 604.034 23.24 ng, intact), 2-phenylethyl isothiocyanate (595.37 28.42 356.00 13.44 ng), undecane (771.44 34.72 1003.28 47.88 ng) methyl salicylate (1079.84 49.39 532.11 18.23 ng); among them, could attract adults. Our study suggests can be threat mono-cultivated B. schreberi, whereas damaged leaves may sacrifice themselves attracting herbivore-induced volatile, thus protecting whole plant population disturbance.

Language: Английский

Citations

0
Advances in functional studies of plant MYC transcription factors DOI
Zewei Li,

Yunshuai Huang,

Zhiwei Shen

et al.

Theoretical and Applied Genetics, Journal Year: 2024, Volume and Issue: 137(8)

Published: Aug. 1, 2024

Language: Английский

Citations

4
Trade-off strategies between growth and defense of spring ephemeral plants in early spring DOI Creative Commons

Liben Pan,

Tianqi Wang,

Vladimir L. Gavrikov

et al.

Frontiers in Plant Science, Journal Year: 2025, Volume and Issue: 16

Published: Jan. 28, 2025

Introduction Spring ephemeral plants represent a unique ecological category of herbaceous plants, characterized by early blooming and vivid flowers with significant ornamental value. Understanding the adaptive strategies spring ephemerals is crucial for introduction cultivation as well optimizing light energy utilization nutrient cycling within ecosystems. Methods We evaluated 26 functional traits across four non-ephemeral along an elevation gradient. By establishing plant trait network, we examined adaptation at different elevations compared differences in between two types plants. Results exhibited higher concentrations carbon nitrogen, lower carbohydrates, edge density modularity networks, stronger linkages defense traits. Plants demonstrated leaf dry matter content total flavonoid concentration, nitrogen influenced temperature, precipitation, soil nutrients. Discussion These results that have strong uptake capacity, adopt resource competition to rapidly accumulate nutrients reproduce. The more conservative strategies, networks showing increased modularity, density, closer correlations among enhance utilization. This study provides new insights into demonstrating how allocate resources growth through regulation variation

Language: Английский

Citations

0
Benzylisoquinoline alkaloids in compatible fungus interaction with a non-model plant: Argemone mexicana L. DOI
Gladys del Carmen Hernández Eleria,

Elia A. Hernández-Hernández,

J. Armando Muñoz-Sánchez

et al.

Journal of Plant Pathology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 11, 2025

Language: Английский

Citations

0
Ecological Dynamics of Volatile Organic Compound–Mediated Interactions in Aristolochia Contorta With Parasitoids and Herbivores DOI Creative Commons
Si‐Hyun Park,

Jae Yeon Jang,

Hangah Lim

et al.

Ecology and Evolution, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

In the evolutionary arms race between plants and herbivores, sophisticated mechanisms of indirect plant defense play a pivotal role. This study investigated role volatile organic compounds (VOCs) in attracting parasitoid Ooencyrtus spp. to Aristolochia contorta, while also providing insights into interactions among A. herbivore Sericinus montela, tritrophic context. utilized field surveys, olfactometer experiments, Gas Chromatography-Mass Spectrometry (GC-MS) analysis investigate VOCs. Field surveys showed 54.6% egg parasitism rate, with quadrats containing contorta larvae more than those alone. bioassays, preferred leaves damaged by pattern wheel simulating damage, 46.8% choosing these over undamaged controls. Leaves treated larval saliva were similarly attractive, drawing 48.7% spp.; however, difference attraction saliva-treated untreated was not statistically significant, suggesting may be central attraction. GC-MS identified VOCs leaves, including hexyl acetate, cyclohexene, δ-cadinene, α-pinene, β-caryophyllene, minimal amounts exo-isocitral β-pinene. Despite complex responses, our suggests saliva-induced do significantly boost finding implies that VOC response damage application is multifaceted, serving multiple defensive functions, amount insufficient substantially influence behavior toward leaves. Our results emphasize contorta's contribute understanding ecological dynamics within plant-parasitoid-herbivore interactions. Moreover, findings suggest new avenues for exploring roles chemical signals, highlighting facilitated cues defenses.

Language: Английский

Citations

0