Strong impact of orally administered BCR4 defensin on aphid survival, embryo development and symbiotic cells in three Acyrthosiphon pisum parthenogenetic lines DOI Creative Commons

Hugo Terrasson,

Karen Gaget,

Garance Lapetoule

и другие.

Research Square (Research Square), Год журнала: 2024, Номер unknown

Опубликована: Ноя. 27, 2024

Abstract Aphids are major crop pests capable of colonizing the main plants grown for human consumption. They have specialized cells, bacteriocytes, which house obligatory symbionts Buchnera aphidicola that provide them with essential nutrients missing from their diet. Bacteriocyte-specific cysteine-rich peptides (BCRs) encoded by a defensin gene family exclusively present in aphids and specifically expressed bacteriocyte. One BCR member, BCR4, has been shown to insecticidal properties against pea aphid, Acyrthosiphon pisum(Hemiptera: Aphididae). In study, we exposed aphid different doses BCR4 examined impact on survival, mass, anatomy, fecundity, as well bacterial symbiosis. As lines various symbiotic status may be differently affected stress, investigated effect ingestion three A. pisum lines: LL01 YR2-amp, that mono-infected B. aphidicola, YR2-Ri, is genetically identical YR2-amp but also contains extracellular facultative Regiella insecticola. Our results show strong dose-response survival more moderate both YR2 lines, while an mass was observed lines. Histological analyses revealed severe embryonic developmental defects due treatment. Finally, treatment reduced symbiont quantity, aphidicola being than R. This study supports idea could act key regulator symbiosis development, highlights its potential candidate bioinsecticide pest control.

Язык: Английский

Research Progress on Plant Responses to Stress Combinations in the Context of Climate Change DOI Creative Commons

Zeyao Jing,

Na Liu, Zong‐Xian Zhang

и другие.

Plants, Год журнала: 2024, Номер 13(4), С. 469 - 469

Опубликована: Фев. 6, 2024

In the context of climate change, frequency and intensity extreme weather events are increasing, environmental pollution global warming exacerbated by anthropogenic activities, plants will experience a more complex variable environment stress combinations. Research on plant responses to combinations is crucial for development utilization climate-adaptive plants. Recently, concept has been expanded from simple multifactorial (MFSCs). Researchers have realized complexity necessity combination research extensively employed composite gradient methods, multi-omics techniques, interdisciplinary approaches integrate laboratory field experiments. studied response mechanisms reactive oxygen species (ROS), phytohormones, transcription factors (TFs), other under reached some generalized conclusions. this article, we focus progress methodological dynamics propose key scientific questions that address, in assemblages, conserving biodiversity, ensuring food security. We can enhance search universal pathways, identify targets combinations, explore adaptive genetic responses, leverage high-technology research. This pursuit cultivating with greater tolerance enabling their adaptation mitigation impacts change.

Язык: Английский

Процитировано

12
Spatial, spectral and temporal insights: harnessing high-resolution satellite remote sensing and artificial intelligence for early monitoring of wood boring pests in forests DOI Creative Commons
Deepak Kumar Mahanta,

Tanmaya Kumar Bhoi,

J. Komal

и другие.

Plant Stress, Год журнала: 2024, Номер 11, С. 100381 - 100381

Опубликована: Фев. 2, 2024

Globally, biotic factors like insect pests and diseases as well abiotic fire, windstorms, droughts influence the global forest ecosystem. Wood-boring (WBPs) pose a considerable threat to ecosystems worldwide owing their capacity of remaining unnoticed during early stages, resulting in vast pervasive infestations later eventually significant tree death. Therefore, it is crucial promptly effectively treat early-stage WBPs by timely detection. The prompt detection requires use advanced effective methods, such remote sensing. This paper provides an overview many uses several sensing devices, platforms, algorithms context monitoring infestations. Modern lightweight sensors light ranging (LiDAR), hyperspectral imagers, thermal cameras, radio (Radar) combined with unmanned aerial vehicles (UAVs) versatile capabilities offer comprehensive method for gathering data. purpose this study examine current capabilities, limits, potential future advancements accurately identifying WBPs.

Язык: Английский

Процитировано

11
Plant Defense Responses to Insect Herbivores Through Molecular Signaling, Secondary Metabolites, and Associated Epigenetic Regulation DOI Creative Commons
Deepak Kumar Mahanta,

J. Komal,

Ipsita Samal

и другие.

Plant-Environment Interactions, Год журнала: 2025, Номер 6(1)

Опубликована: Фев. 1, 2025

ABSTRACT Over millions of years interactions, plants have developed complex defense mechanisms to counteract diverse insect herbivory strategies. These defenses encompass morphological, biochemical, and molecular adaptations that mitigate the impacts herbivore attacks. Physical barriers, such as spines, trichomes, cuticle layers, deter herbivores, while biochemical include production secondary metabolites volatile organic compounds (VOCs). The initial step in plant's involves sensing mechanical damage chemical cues, including oral secretions herbivore‐induced VOCs. This triggers changes plasma membrane potential driven by ion fluxes across plant cell membranes, activating signal transduction pathways. Key hormonal mediators, jasmonic acid, salicylic ethylene, orchestrate downstream responses, VOC release biosynthesis. review provides a comprehensive analysis responses herbivory, emphasizing early late mechanisms, encompassing physical cascades, synthesis, phytohormone signaling, epigenetic regulation.

Язык: Английский

Процитировано

1
The biochemical and molecular mechanisms of plants: a review on insect herbivory DOI Creative Commons
Afeez Adesina Adedayo, Richard O. Musser,

Mari Aanaenson

и другие.

Plant Signaling & Behavior, Год журнала: 2024, Номер 20(1)

Опубликована: Дек. 26, 2024

Biochemical and molecular mechanisms have been essential to reduce various insect attacks on plants. The biochemical methods are wide involving direct indirect defenses. defensive chemical substances secreted effectively the wound caused by herbivores (insects phytopathogens) Plants responded producing VOCs which draw natural enemies of insects phytopathogens. progress observed in cognition stimulus plants their potential control responses is characterized modification shifts our attention development endogenous resistance preserving crops. main objective implementing a biotechnological mechanism crop production employ durable multimechanistic alternatives pests via plant produces upon encountering attack.

Язык: Английский

Процитировано

3
The potential of CRISPR-Cas genome editing technologies to mitigate biotic stress in plants DOI Creative Commons
Israt Jahan, Prodipto Bishnu Angon,

Sharah Jabeen Mou

и другие.

CABI Agriculture and Bioscience, Год журнала: 2025, Номер unknown

Опубликована: Фев. 9, 2025

Язык: Английский

Процитировано

0
<i>Agrobacterium</i>-Mediated Genome Modification for Improvement of Oil Palm Planting Materials DOI Open Access

Ayub Nor Hanin,

Mat Yunus Abdul Masani,

O. A. Janna

и другие.

OBM Genetics, Год журнала: 2025, Номер 09(02), С. 1 - 28

Опубликована: Апрель 15, 2025

Oil palm is the most productive vegetable oil crop compared to other oil-bearing crops because it produces highest yield per hectare. Palm very versatile since used for producing food and beverages, personal care cosmetics, cleaning products, biofuel, bioenergy. To cater increasing demand in global market, much research has been done improve oil's modify its quality addition height through breeding. Due long breeding cycle, planting materials have improved using biotechnological approaches such as genetic engineering genome editing. The ability transform with high efficiency key effect modification of palm. current transformation <em>Agrobacterium</em>-mediated low monocots rice, maize, wheat. Over last few decades, numerous studies conducted enhance efficiency, providing a more reliable landscape CRISPR/Cas9 In this review, we discussed progress made transformation, focusing on outline possible strategies regeneration efficiencies. prospect editing improving palms agronomic traits, yield, plant height, fruit color, resistance resist biotic abiotic stresses, were also discussed.

Язык: Английский

Процитировано

0
CRISPR/Cas9: A New Frontier in Biocontrol Strategies for Insect Pest Management DOI
R. D. Dodiya,

Sai Thilak Koosi,

F. K. Chaudhary

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Mathematically modelling the population dynamics of CRISPR gene drive systems in the pine pestSirex noctilio DOI Creative Commons
Herman Strydom, Rachid Ouifki, Michael Chapwanya

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Abstract Sirex noctilio is an invasive pest of pine that has caused significant economic damage in South Africa and many other Southern Hemisphere countries. Current management tools are not efficient all cases consequently there a need for more targeted control measures. An emerging tool the use gene editing associated drive systems. In this study, we aim to investigate CRISPR-Cas systems S. Africa. As first step, developed model population dynamics , using historical national monitoring data incorporating influence two main biological agents pest. We then modelled different on namely, baseline CRISPR Complementary Sex Determination (CSD) model. Each used simulate male female only introduction strategy estimate effectiveness methods introducing system. The calibration was achieved by optimizing fit existing least squares technique. Results suggest both would be effective at controlling growth high levels introduction, but overall hindered practical limitations. Although models were explored, underlying serves as framework further studies into well

Язык: Английский

Процитировано

0
Environmental contaminants and insects: Genetic strategies for ecosystem and agricultural sustainability DOI

Arjumand John,

M. Aslam, Abadi M. Mashlawi

и другие.

The Science of The Total Environment, Год журнала: 2025, Номер 982, С. 179660 - 179660

Опубликована: Май 17, 2025

Язык: Английский

Процитировано

0
Nanocarriers for Delivering Pesticides DOI
John Tsado Mathew, Jonathan Hussaini,

Abel Inobeme

и другие.

IGI Global eBooks, Год журнала: 2025, Номер unknown, С. 273 - 296

Опубликована: Май 9, 2025

Nanocarriers have emerged as a promising solution for pesticide delivery, aiming to enhance efficiency, reduce environmental contamination, and improve targeted pest control. Traditional applications often result in excessive use, rapid degradation, non-specific distribution, leading health concerns. Nanocarriers, such polymeric nanoparticles, lipid-based carriers, inorganic carbon-based materials, offer controlled release, enhanced bioavailability, improved stability. These nanoformulations protect active ingredients from premature facilitate minimize off-target effects. Recent advancements stimuli-responsive biodegradable nanocarriers solutions eco-friendly management. This review explores the types, synthesis, mechanisms, applications, challenges, future perspectives of emphasizing their potential advancing precision agriculture.

Язык: Английский

Процитировано

0