Elsevier eBooks, Journal Year: 2024, Volume and Issue: unknown, P. 159 - 168
Published: Oct. 25, 2024
Language: Английский
Water, Journal Year: 2023, Volume and Issue: 15(3), P. 418 - 418
Published: Jan. 19, 2023
Abiotic stress significantly limits plant growth and production. Drought, in particular, is a severe constraint that affects agricultural productivity on global scale. Water induces plants set of morpho-anatomical (modification root leaf structure), physiological, biochemical (relative water content, membrane stability, photosynthesis, hormonal balance, antioxidant systems, osmolyte accumulation) changes mainly employed to cope with the drought stress. These strategies allow overcome unfavorable period limited availability. Currently, promising alternative available improve tolerance under conditions. The use osmotolerant growth-promoting rhizobacteria (PGPR) as inoculants can alleviate by increasing efficiency plant. PGPR drought, through morphology architecture system, production phytohormones, extracellular polysaccharides, ACC 1-(aminocyclopropane-1-carboxylate) deaminase, volatile chemicals, accumulation. They may also enhance defense system induce transcriptional regulation response genes. This review addresses effects growth, adaptation, conditions discusses significant potential modulate physiological against scarcity, ensuring survival improving resistance crops.
Language: Английский
Citations
67
Plant Stress, Journal Year: 2023, Volume and Issue: 11, P. 100341 - 100341
Published: Dec. 28, 2023
Through a variety of mechanisms, including increasing the amount readily available mineral nutrients, regulating phytohormone levels, and biocontrol phytopathogens, plant growth-promoting rhizobacteria (PGPR) associated with rhizosphere either directly or indirectly stimulates growth development. The establishment, survival, persistence PGPR inoculants are widely acknowledged to be contingent upon these two parameters, in addition intricate network interactions within rhizosphere. In general, soil is moist environment significant amounts carbon that have been degraded harbors large population microbes. rhizo-microbiome crucial agriculture because wide root exudates cell debris attract unique distinct patterns microbial colonization. plays role manufacture regulation extracellular molecules, hormones, secondary metabolites, antibiotics, various signaling chemicals. Additionally, composition influences texture enhancement. Research has shown can used treat plants inoculate promote alters physiology entire plant, which enhances nutrient uptake affects effectiveness activity. specific biochemical processes involved this phenomenon often not well understood. Nevertheless, new studies shed light on mechanisms via by induce responses, both at local systemic levels. Insufficient information regarding impact mechanism molecules metabolic pathways characteristics. Consequently, review will concentrate elucidating identifying essential exert influence root-microbe interactions.
Language: Английский
Citations
65
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 907, P. 167774 - 167774
Published: Oct. 15, 2023
Language: Английский
Citations
44
Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100482 - 100482
Published: May 14, 2024
Due to climate change, expansion of salt-affected arable lands has emerged as a major threat global food security and agricultural sustainability. Conventional crop breeding programs have proven insufficient for mitigating the risks salt stress in soil productivity. Research on improving health tolerance boost yield performance under by plant-associated microbiomes gained considerable attention over past few decades. In addition rehabilitation salt-degraded soils, halotolerant plant growth-promoting rhizobacteria (HT-PGPR) are effective stimulating growth, nutritional values yields, increasing tolerance/resistance abiotic/biotic conditions plants. To alleviate salinity stress, HT-PGPR employ wide range mechanisms, including production secondary metabolites siderophores, synthesis phytohormones enzymes, maintenance ion homeostasis, nutrient availability Because our goal is continuously improve understanding their impact agriculture, current review addresses challenges associated with salinity, updates scientific community solutions (e.g., HT-PGPR) sustainable agriculture farming practices.
Language: Английский
Citations
24
The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 899, P. 165612 - 165612
Published: July 20, 2023
Language: Английский
Citations
30
Agriculture, Journal Year: 2023, Volume and Issue: 13(1), P. 168 - 168
Published: Jan. 9, 2023
Soil salinity is one of the major abiotic constraints in agricultural ecosystems worldwide. High levels have negative impacts on plant growth and yield, affect soil physicochemical properties. Salinity also has adverse effects distribution abundance microorganisms. problems previously been addressed research, but most approaches, such as breeding for salt tolerant varieties amelioration, are expensive require years efforts. Halotolerant growth-promoting rhizobacteria (HT-PGPR) secrete secondary metabolites, including osmoprotectants, exopolysaccharides, volatile organic compounds. The importance these compounds promoting reducing under stress now widely recognised. HT-PGPR emerging effective biological strategies mitigating harmful high salinity; improving growth, development, yield; remediating degraded saline soils. This review describes beneficial mechanisms various HT-PGPR, which carried out by maintaining ion homeostasis, increasing nutrient availability, producing hormones, Exploring suitable applications agriculture production systems can play a crucial role sustainable crop productivity.
Language: Английский
Citations
26
Frontiers in Microbiology, Journal Year: 2025, Volume and Issue: 15
Published: Jan. 10, 2025
Volatile organic compounds (VOCs) produced by potential plant growth-promoting rhizobacteria (PGPR) play an important role in interactions. However, the mechanisms underlying this phenomenon are not well understood. Our findings show that influence of VOCs from PGPR strain Bacillus vallismortis (EXTN-1) on tobacco growth is dependent culture media used. The released sugar-rich such as potato dextrose agar (PDA) and King's B (KB) were highly effective. exposure to nutrient (NA), tryptic soy (TSA), Luria-Bertani (LB) resulted chlorosis stunted growth. This effect was caused discharge a large amount ammonia altered pH media. Seedlings exposed for 10 days exhibited improved even after eliminated under greenhouse conditions. Priming seeds with 24 48 h induced higher than untreated control, better compared treatment. Chemical characterization emitted EXTN-1 different using solid-phase microextraction (SPME) coupled gas chromatography-mass spectrometry (GC-MS) showed presence 2,3-butanedione monoxime all spectra. 1-butanol prominent peak VOC grown KB NA, while acetoin highest PDA, followed KB. Heneicosane benzaldehyde exclusively NA media, these synthetic I-plate assay. work indicates EXTN-1.
Language: Английский
Citations
1
Annals of Microbiology, Journal Year: 2025, Volume and Issue: 75(1)
Published: Feb. 4, 2025
Language: Английский
Citations
1
Crops, Journal Year: 2024, Volume and Issue: 4(1), P. 43 - 54
Published: Feb. 8, 2024
Exuded plant metabolites play an important role in fostering beneficial interactions with the surrounding soil microbiota, thereby helping plants to better adjust changing environmental conditions. These act as signals attract or enhance colonization of roots specific groups microbes and they modulate dynamics plant–microbe fulfilling niche-based requirements, directly and/or indirectly. This review emphasizes expression, levels, modes action, net effects signaling that help food crop become colonized by promote growth development under periods biotic stress.
Language: Английский
Citations
6
Heliyon, Journal Year: 2024, Volume and Issue: 10(23), P. e40522 - e40522
Published: Nov. 20, 2024
Plant growth-promoting rhizobacteria (PGPR) have emerged as key players in sustainable agriculture due to their ability enhance plant growth, nutrient uptake, and disease resistance. A significant aspect of PGPR is the emission volatile organic compounds (VOCs), which serve signaling molecules that influence various physiological processes plants. This review article explores complex interactions between rhizobacterial VOCs soil health, focusing particularly on role cycling within agricultural ecosystems. By investigating mechanism production release by rhizobacteria, along with impacts properties microbial communities. We aim highlight potential (VOCs) for management. Additionally, we discuss promoting root enhancing processes. providing insights into these mechanisms, this offers tailored strategies exploring optimize availability, fertility, address environmental challenges agriculture. Exploring presents an opportunity establish resilient systems significantly global food security promote stewardship.
Language: Английский
Citations
4