Microbial Metabolites Beneficial to Plant Hosts Across Ecosystems

Microbial Ecology, Journal Year: 2022, Volume and Issue: 86(1), P. 25 - 48

Published: July 22, 2022

Language: Английский

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Identification of attractants for adult Spodoptera litura based on the interaction between odorant-binding protein 34 and host volatiles

Pesticide Biochemistry and Physiology, Journal Year: 2024, Volume and Issue: 203, P. 106005 - 106005

Published: July 1, 2024

Language: Английский

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Utilizing genetic variation in perennial sorghum to improve host plant resistance to aphids

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

Published: April 19, 2025

With growing concerns over the sustainability of conventional farming systems, perennial crops offer an environmentally friendly and resilient alternative for long-term agricultural production. Perennial grain provide numerous benefits, such as low input investment, reduced tillage, soil conservation, better carbon sequestration, sustainable yields, enhanced biodiversity support. Sorghum (Sorghum bicolor) is fifth most-grown cereal crop grown food, fuel, food in world. The development sorghum offers a substitute traditional annual by providing environmental, economic, agronomic benefits. Sugarcane aphid (SCA; Melanaphis sacchari), phloem-feeder, considered major threat to Since its first report 2013, it caused $40.95 million losses South Texas alone 2015, accounting about 19% total value production region. In this study, we screened diverse genotypes using no-choice choice assays determine their innate antibiosis antixenosis resistance levels SCAs. Based on reproduction plant damage rating, bioassay classified 43 into four clusters: highly susceptible, moderately resistant, resistant. To further investigate mechanisms, selected two genotypes, X999 > R485 (SCA-resistant) PR376 ~ Tift241 (SCA-susceptible) that showed greatest variation SCA, subsequent experiments. Choice results indicated aphids chose settlement, whereas no significant preference was observed compared control genotype. Electrical penetration graph (EPG) demonstrated feeding SCA-resistant genotype spent significantly less time phloem phase than susceptible plants. identification will be valuable future breeding programs managing economically important pest.

Language: Английский

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Symbiotic bacteria and pest control: plant toxins, chemical pesticides, and fungal entomopathogens

Trends in Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025

Language: Английский

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Plant secondary metabolites as potential bioinsecticides? Study of the effects of plant-derived volatile organic compounds on the reproduction and behaviour of the pest beetle Tenebrio molitor

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 257, P. 114951 - 114951

Published: April 26, 2023

Modern agriculture has many environmental consequences, such as soil contamination, accumulation of toxic compounds in the environment or risk adverse effects on nontarget organisms and for these reasons, scientists are seeking a more environmentally friendly alternative to synthetic insecticides. This study investigated four plant secondary metabolites classified volatile organic (VOCs), which have potential bioinsecticides, (E)-2-decenal, furfural, 2-undecanone (E,E)-2-4-decadienal, concentrations 10-5 10-7 M, female reproductive processes larval hatchability Tenebrio molitor beetle. Our indicates proper development ovaries after application however volume terminal oocytes was significantly reduced, with strongest effect (E)- 2-decenal reduced approximately three times. The relative vitellogenin expression level observed (E,E)- 2-4-decadienal concentration at same time patency index up 2-times furfural M. What is important morphological changes translated into physiological ones. number laid eggs affected, inhibition (∼43% reduction), (∼33%) M (∼33%). Moreover, we 13% (in case 2-undecanone) decrease hatchability. Tested exhibited repellent caused 60% reduction insect survivability Altogether, VOCs seems like bioactive protection.

Language: Английский

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Defense response of Fraxinus mandshurica seedlings to Hyphantria cunea larvae under Cd stress: A contradiction between attraction and resistance

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 859, P. 160390 - 160390

Published: Nov. 22, 2022

Language: Английский

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Backyard Biomes: Is Anyone There? Improving Public Awareness of Urban Wildlife Activity

Diversity, Journal Year: 2022, Volume and Issue: 14(4), P. 263 - 263

Published: March 30, 2022

Wildlife are increasingly being found in urban habitats, and likely rely on some resources suburban household yards, which exposes them to the effects of yard management human pet activities. We compared relationships between these potential disturbances benefits number different types wildlife sighted by householders, using written surveys. Owing inability many respondents identify animals species or genus level, each ‘type’ animal individually listed was counted generate total observed household. that relatively more were residents whose yards provided ease faunal access under through fences, had reduced pesticide use, increased levels anthropogenic noise, presence pets yards. The latter two associations relate opportunities observe creates. also investigated use domestic open vegetated habitats day night, motion-sensor cameras. All activity introduced brown black rats (Rattus norvegicus, R. rattus), owing their wild origins but long commensal history with humans. Camera images indicated animals’ natural periods maintained Brown antechinuses (Antechinus stuartii), northern bandicoots (Isoodon macrourus), cats (Felis catus) native birds (species as below) preferred sheltered over when showed little habitat preference. However, unlike other species, used areas than within group only. common brushtail possum (Trichosurus vulpecula) comparatively rats, self dog (Canis familiaris) red fox (Vulpes vulpes) areas, against themselves. This a level coping stressors animals, reliance allow for stress-relieving behaviours escape hiding. Here, we offer insights into how findings may be help educate motivate responsibility conservation.

Language: Английский

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Unraveling the Coevolutionary Arms Race: Insights into the Dynamic Interplay of Plants, Insects and Associated Organisms

Published: Jan. 1, 2024

Insect–plant interactions are complex and dynamic relationships that have evolved over millions of years. Plants developed various adaptations to deter insect herbivores, including physical, chemical, induced defences. In response, insects detoxification mechanisms, behavioural adaptations, physiological overcome these This coevolutionary arms race has shaped the between plants insects, leading a diverse array strategies counter-strategies. Additionally, other associated organisms such as endosymbionts rhizosphere microbes been shown play critical role in interactions. Endosymbionts can alter nutritional quality plant tissue confer resistance environmental stressors, while influence growth nutrient uptake. Understanding insect–plant important implications for protection management. By leveraging relationships, we develop sustainable eco-friendly approaches crop pest

Language: Английский

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Habitat Loss and Fragmentation in Chaco Forests: A Review of the Responses of Insect Communities and Consequences for Ecosystem Processes

Springer eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 129 - 162

Published: Jan. 1, 2024

Language: Английский

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Systemic defense induced by fatty acid compounds from marine macroalgae, Chaetomorpha antennina in tomato (Solanum lycopersicum) plants alters the susceptibility of the polyphagous agricultural pest, Spodoptera litura Fab

Chemical and Biological Technologies in Agriculture, Journal Year: 2024, Volume and Issue: 11(1)

Published: May 7, 2024

Abstract Background Seaweeds contain a widespread range of fatty acids (FA), and several them have potential bioactivity. FAs are dynamic members all biota, as well being acknowledged for their critical function in initiating phytohormone interactions acting important participants many defense signalling pathways the plant system. The current study looks at defense-eliciting potentials from green seaweed Chaetomorpha antennina (Bory) Kützing impact on polyphagous insect pest Spodoptera litura (Fab). Results was detected with 19 acids, larger proportion hexa octadecanoic linoleic acids. algal acid compounds (CFA) were successful eliciting salicylic phenolic biosynthesis along enzymes peroxidase (PO) polyphenol oxidase (PPO). CFA enhanced synthesis enzymes, PO PPO phenols, post infestation S. (> 50%) compared to control plants exposed pest. also effective causing direct mortalities (96–98%) larvae (II-V instars). elicited tomato displayed physiological incursions that extended larval-pupal duration 26–28 days, preventing both morphogenetic transitions affecting morphology, lead emergence adults malformed wings, legs. As consequence, fecundity reduced by 60% reproductive performances second-generation adults. consumption rate (RCR) decreased 84%, depicting feeding deterrence. These observed > 50% reduction levels phosphatase enzyme secretion, bringing down larval growth 0.58 0.34 mg/day. Histological analysis midgut cell disruption. Conclusion Hence, finally confirms elicitor C. , inducing natural systemic defenses. This investigation unlocks novel forecasts besides delivering an unconventional method crop protection moderate or interchange solicitation chemical pesticides. Graphical

Language: Английский

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