Effect of Rhizobium mechanisms in improving tolerance to saline stress in lettuce plants DOI Creative Commons
Miguel Ayuso-Calles, José David Flores‐Félix, Filipa Amaro

et al.

Chemical and Biological Technologies in Agriculture, Journal Year: 2023, Volume and Issue: 10(1)

Published: Sept. 12, 2023

Abstract Background Soils affected by salinity are a recurring problem that is continually increasing due to the impact of climate change on weather conditions and ineffective agricultural management practices. The use plant growth promoting (PGP) Bacteria can alleviate its effects. In this regard, genus Rhizobium has demonstrated excellent PGP capabilities through various promotion mechanisms may therefore be promising biofortifier under saline conditions. However, little known about production volatile organic compounds (VOCs) bacteria their effects development. Here, we aim characterize volatilome (the set metabolites synthesized an organism) for first time further investigate direct VOC-mediated interaction between strain lettuce, crop severely salinity, both non-saline Results study, it was shown sp. GPTR29 able increase lettuce ( Lactuca sativa L.) normal We analyzed (0 mM NaCl) (100 HS-SPME-GC‒MS found differential composition in response salinity. detected 20 different compounds, where 3-methyl-1-butanol, 2-methyl-1-butanol, α-pinene were backbone volatilome. Exposure these bicameral plates salt stress resulted increases development 17.1%, 16.0% 33.1% aerial part size, number leaves root length, respectively. Under greenhouse inoculation 17.8% 27.4% shoot fresh dry weight, Phenolic HPLC–DAD-MS, revealing total flavonoid content apigenin derivative, luteolin 7- O -glucoside quercetin 3- -glucuronide individually. Conclusions These results provide new avenues study bacterial genus, such as VOCs growth, which play important role mediating plant–microorganism interactions. Graphical abstract

Language: Английский

Salinity Stress Resilience in Sorghum bicolor through Pseudomonas-Mediated Modulation of Growth, Antioxidant System, and Eco-Physiological Adaptations DOI Creative Commons
Muhammad Azeem,

Robina Sultana,

Naeem Ahmed

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: 10(1), P. 940 - 954

Published: Jan. 5, 2025

Increased soluble salts in soil and irrigation water threaten the sustainability of crops. This causes food insecurity directly by reducing staple crop yield indirectly limiting fodder forage production. Recently, plant-growth-promoting rhizosphere microorganism utilization improved productivity under stress. Therefore, this research was conducted to find Sorghum bicolor growth improvement potential exogenous application five different Pseudomonas strains salinity a pot experiment. The applied with 1/2-strength Hoagland's nutrient solution as 0 100 mM NaCl for 30 days. Results indicated that reduced vegetative parameters stress-responsive biochemicals nonbacterial treated plants. However, plants exhibited notable increases growth, relative content, antioxidant enzyme activities, osmolytes, photosynthetic pigments salinity. ionic imbalance also due improving K+ K+/Na+ ratios P. aeruginosa strain SAHK (OQ194056) putida AHK_SHA007 (OR468335) were found be promising compared other increasing stress tolerance. augmentation plant's system maintenance ion homeostasis served strategy enhance plant salt

Language: Английский

Citations

3
From Salinity to Nutrient-Rich Vegetables: Strategies for Quality Enhancement in Protected Cultivation DOI
Nazim S. Gruda, Jinlong Dong, Xun Li

et al.

Critical Reviews in Plant Sciences, Journal Year: 2024, Volume and Issue: 43(5), P. 327 - 347

Published: May 20, 2024

Salinity, a significant abiotic stressor, imperils vegetable growth, yield, and quality. Moreover, elevated salinity levels, driven by climate change, jeopardize nutritional In particular, protected cultivation systems, responsible for 60% of the global industry's economic value, encounter notable challenges in managing due to water runoff drainage mechanism limitations. Therefore, it is crucial understand intricate mechanisms that control use this knowledge improve plant tolerance these conditions. study, we explore strategies effectively mitigate detrimental impacts on crops cultivated within environments. Additionally, investigate benefits controlled moderate adjustments enhance their content. Moderate or nutrient solution increases typically raise total soluble solids, sugar, vitamin C, phenols, lycopene, antioxidants most fruit vegetables. Though generally applicable leafy vegetables, exceptions like lettuce wild rocket may show inconsistencies, potentially reducing some quality traits. Interdisciplinary approaches are essential developing sustainable solutions thereby ensuring resilience production face changing environmental Given impracticality desalinating all areas, future research should also synergies between stress, cultivars used, factors from physiological molecular perspectives

Language: Английский

Citations

16
Can lettuce plants grow in saline soils supplemented with biochar? DOI Creative Commons
Riccardo Fedeli, Andrea Vannini,

Nesrine Djatouf

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(4), P. e26526 - e26526

Published: Feb. 1, 2024

Language: Английский

Citations

12
Enhancing Water Status and Nutrient Uptake in Drought-Stressed Lettuce Plants (Lactuca sativa L.) via Inoculation with Different Bacillus spp. Isolated from the Atacama Desert DOI Creative Commons
Christian Santander, Felipe González,

Urley Pérez

et al.

Plants, Journal Year: 2024, Volume and Issue: 13(2), P. 158 - 158

Published: Jan. 6, 2024

Drought is a major challenge for agriculture worldwide, being one of the main causes losses in plant production. Various studies reported that some soil's bacteria can improve tolerance to environmental stresses by enhancement water and nutrient uptake plants. The Atacama Desert Chile, driest place on earth, harbors largely unexplored microbial richness. This study aimed evaluate ability various

Language: Английский

Citations

9
Mitigation of salt stress in lettuce by a biostimulant that protects the root absorption zone and improves biochemical responses DOI Creative Commons

Javier Zuzunaga-Rosas,

Roberta Calone, Diana M. Mircea

et al.

Frontiers in Plant Science, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 16, 2024

Horticultural crops constantly face abiotic stress factors such as salinity, which have intensified in recent years due to accelerated climate change, significantly affecting their yields and profitability. Under these conditions, it has become necessary implement effective sustainable solutions guarantee agricultural productivity food security. The influence of BALOX ® , a biostimulant plant origin, was tested on the responses salinity Lactuca sativa L. var. longifolia plants exposed salt concentrations up 150 mM NaCl, evaluating different biometric biochemical properties after 25 days treatment. Control were cultivated under same conditions but without An situ analysis root characteristics using non-destructive, real-time method also performed. treatments inhibited growth, reduced chlorophyll carotenoid contents, increased Na + Cl - roots leaves while reducing those Ca 2+ . application had positive effect because stimulated growth level photosynthetic pigments. In addition, content presence absence salt. salt-induced accumulation biomarkers, proline, malondialdehyde (MDA), hydrogen peroxide (H 2 O ). Therefore, appears reduce osmotic, ionic oxidative levels salt-treated plants. Furthermore, treatments’ biostimulant’s direct effects indicated that ’s primary mechanism action probably involves improving nutrition, even severe by protecting stimulating absorption zone.

Language: Английский

Citations

9
Management of Rhizosphere Microbiota and Plant Production under Drought Stress: A Comprehensive Review DOI Creative Commons
Catalina Vidal, Felipe González, Christian Santander

et al.

Plants, Journal Year: 2022, Volume and Issue: 11(18), P. 2437 - 2437

Published: Sept. 19, 2022

Drought generates a complex scenario worldwide in which agriculture should urgently be reframed from an integrative point of view. It includes the search for new water resources and use tolerant crops genotypes, improved irrigation systems, other less explored alternatives that are very important, such as biotechnological tools may increase efficiency. Currently, large body evidence highlights role specific strains main microbial rhizosphere groups (arbuscular mycorrhizal fungi, yeasts, bacteria) on increasing drought tolerance their host plants through diverse plant growth-promoting (PGP) characteristics. With this background, it is possible to suggest joint distinct PGP microbes could produce positive interactions or additive beneficial effects if co-inoculation does not generate antagonistic responses. To date, have only been partially analyzed by using single omics tools, genomics, metabolomics, proteomics. However, there gap information multi-omics approaches detect between plants. This approach must next scale-jump study interaction soil–plant–microorganism. In review, we constraints posed framework global demand production, integrating important played biota agent. Using understand depth processes occur presence microorganisms can allow us modulate combined drive crop yields, improving production attend growing food.

Language: Английский

Citations

32
Ascorbic and Salicylic Acids Vitalized Growth, Biochemical Responses, Antioxidant Enzymes, Photosynthetic Efficiency, and Ionic Regulation to Alleviate Salinity Stress in Sorghum bicolor DOI
Muhammad Azeem,

Robina Sultana,

Athar Mahmood

et al.

Journal of Plant Growth Regulation, Journal Year: 2023, Volume and Issue: 42(8), P. 5266 - 5279

Published: Jan. 21, 2023

Language: Английский

Citations

19
Potential Role of Biochar and Silicon in Improving Physio-Biochemical and Yield Characteristics of Borage Plants under Different Irrigation Regimes DOI Creative Commons

S. Farouk,

Arwa Abdulkreem AL‐Huqail, Seham El-Gamal

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(8), P. 1605 - 1605

Published: April 10, 2023

Silicon (Si) and biochar (Bc) are key signaling conditioners that improve plant metabolic processes promote drought tolerance. However, the specific role of their integrative application under water restrictions on economical plants is not yet well understood. Two field experiments throughout 2018/2019 2019/2020 were conducted to examine physio-biochemical modifications yield attributes borage mediated by Bc (9.52 tons ha−1) and/or Si (300 mg L−1) different irrigation regimes (100, 75, 50% crop evapotranspiration). Catalase (CAT) peroxidase (POD) activity; relative content, water, osmotic potential; leaf area per attributes; chlorophyll (Chl) Chla/chlorophyllidea (Chlida), Chlb/Chlidb considerably reduced within condition. On other hand, oxidative biomarkers, as organic antioxidant solutes, increased drought, associated with membrane dysfunction, superoxide dismutase (SOD) activation, adjustment (OA) capacity a hyperaccumulation porphyrin intermediates. Supplementation lessens detrimental impacts several increasing attributes. Their normal or conditions significantly elicited accumulation solutes activation enzymes, followed lessening formation free radical oxygen mitigating injuries. Moreover, maintained status OA capacity. treatment protoporphyrin, magnesium-protoporphyrin, protochlorophyllide while Chla Chlb assimilation boosting ratio Chla/Chlida Chlb/Chlidb, resulting in rise components following these modifications. These findings highlight significance (a) stress-signaling molecule(s) regulating defensive systems drought-affected aptitude, status, accelerating assimilation, thus leading productivity.

Language: Английский

Citations

14
Changes in Secondary Metabolite Production in Response to Salt Stress in Alcea rosea L. DOI Creative Commons

Arezoo Sadeghi,

Jamshid Razmjoo, Hassan Karimmojeni

et al.

Horticulturae, Journal Year: 2024, Volume and Issue: 10(2), P. 139 - 139

Published: Jan. 31, 2024

The effect of three levels salinity on physio-biochemical traits in 10 Alcea rosea (hollyhock) varieties were evaluated. It was observed that salt stress increased both the total phenolic content (TPC) and flavonoid (TFC) some decreased them others. greatest increases TPC TFC recorded Saman variety (104% 62%, respectively) when cultivated under severe stress, indicating this is most salt-tolerant amongst those tested. abundant compound ellagic acid, compounds showed concentration due to p-coumaric acid (87% Isfahan variety) chlorogenic (142% Mahallat variety). Salt also shown decrease production diphenyl-2-picrylhydrazyl (DPPH) all varieties. highest DPPH (133%) Shiraz 1 variety, grown conditions stress. mucilage present petals, leaves, seeds selected These data suggest selection hollyhock for direct cultivation or use future breeding programs feasible.

Language: Английский

Citations

5
Inoculation with Actinobacteria spp. Isolated from a Hyper-Arid Environment Enhances Tolerance to Salinity in Lettuce Plants (Lactuca sativa L.) DOI Creative Commons
Felipe González, Christian Santander, Antonieta Ruíz

et al.

Plants, Journal Year: 2023, Volume and Issue: 12(10), P. 2018 - 2018

Published: May 18, 2023

Irrigated agriculture is responsible for a third of global agricultural production, but the overuse water resources and intensification farming practices threaten its sustainability. The use saline in irrigation has become an alternative areas subjected to frequent drought, this practice affects plant growth due osmotic impact excess ions. Plant-growth-promoting rhizobacteria (PGPR) can mitigate negative impacts salinity other abiotic factors on crop yields. Actinobacteria from hyper-arid Atacama Desert could increase tolerance salinity, allowing their as biofertilizers lettuce crops using waters with high salt contents. In work, rhizosphere samples halophytic Metharme lanata were obtained Desert, actinobacteria isolated identified by 16S gene sequencing. PGPR activities phosphate solubilization, nitrogen fixation, production siderophore auxin assessed at increasing concentrations NaCl, well enhancement plants irrigated 100 mM NaCl. Photosynthesis activity chlorophyll content, proline lipid peroxidation, cation P concentration, identification quantification phenolic compounds assessed. strains S. niveoruber ATMLC132021 lienomycini ATMLC122021 positive fixation solubilization produced up 200 plants, both able improve stress contents, carotenoids, chlorophyll, efficiency (WUE), stomatal conductance (gs), net photosynthesis (A), concomitantly overproduction compound dicaffeoylquinic acid. All these traits positively correlated biomass under saltwater irrigation, suggesting possible bioinoculants where are scarce usually concentrations.

Language: Английский

Citations

12