Rhizobacteria inoculation of plants for reducing insect pests: A meta-analysis on insect behaviour and fitness

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: April 18, 2024

Abstract Microbial communities in the plant rhizosphere—the soil region closely associated with roots— play critical roles shaping growth, defence, fitness, and ecosystem processes. Inoculation of plants specific rhizobacteria strains has shown promising potential for increasing crop yields. Rhizobacteria can also induce defences, resulting reduced insect growth reproduction, manipulate biochemistry to alter host-choice recruit natural enemies insects. We present a meta-analysis examining impact inoculation on fitness behaviour. Our findings indicate that generally reduces herbivore host choice behaviours. However, effect sizes varied significantly depending type (chewing versus sucking), host, rhizobacterial species. Bacillus spp. showed stronger effects than commonly studied Pseudomonas notably traits such as choice, leaf consumption, survival, reproduction chewing herbivores, while primarily impacting sucking herbivores by reducing reproduction. Single-strain inoculants tended perform better, especially suggesting strain incompatibility issues multi-strain inoculants. Furthermore, field trials less reduction compared experiments under controlled conditions, possibly due diversity environmental factors affecting inoculant persistence. Despite, very limited experimental data, studies observed attract parasitoid wasps predators plants. These results underscore need considering broader interactions when developing effective rhizobacteria-based pest management strategies. Understanding generalist rhizosphere aid synthetic microbial broad protective functions across various environments.

Language: Английский

---

Coming of age for Microbiome gene breeding in plants

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

Published: Aug. 5, 2024

The plant microbiota can complement host functioning, leading to improved growth and health under unfavorable conditions. Microbiome engineering could therefore become a transformative technique for crop production. genes, abbreviated as M provide valuable targets shaping plant-associated microbial communities. Plant genotype is major driver of the structure function In this Perspective, author discusses targeted microbiome through identification selection genes within crops genomes.

Language: Английский

---

Understanding plant responsiveness to microbiome feedbacks

Current Opinion in Plant Biology, Journal Year: 2024, Volume and Issue: 81, P. 102603 - 102603

Published: July 17, 2024

Plant microbiome interactions are bidirectional with processes leading to assembly and effects on plants, so called feedbacks. With belowground focus we systematically decomposed both of these directions into plant (root rhizosphere) components identify methodological challenges research priorities. We found that the bidirectionality presents a challenge for genetic studies. Establishing causality is particularly difficult when mutant has both, an altered phenotype microbiome. Is mutation directly affecting (e.g., through root exudates), which then causes and/or consequence altering plant's architecture)? Here, put forward feedback experiments allow separate cause effect furthermore, they useful investigating complex microbiomes in natural soils. They especially investigate basis how plants respond soil stress such feedbacks understudied compared mechanisms contributing assembly. Thinking towards application, this may develop crops abilities assemble beneficial actively exploit its

Language: Английский

---

The ancestral environment of teosinte populations shapes their root microbiome

Environmental Microbiome, Journal Year: 2024, Volume and Issue: 19(1)

Published: Aug. 29, 2024

The composition of the root microbiome affects host's growth, with variation in host genome associated variation. However, it is not known whether this intra-specific microbiomes a consequence plants performing targeted manipulations them to adapt their local environment or varying passively other traits. To explore relationship between genome, and microbiome, we sampled seeds from teosinte populations across its native range Mexico. We then grew accessions alongside two modern maize lines common garden experiment. Metabarcoding was performed using universal bacterial fungal primers profile microbiomes.

Language: Английский

---

Genetic and molecular mechanisms underlying nitrogen use efficiency in maize

Journal of genetics and genomics/Journal of Genetics and Genomics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Language: Английский

---