Prevalence, diversity and applications potential of nodules endophytic bacteria: a systematic review

Frontiers in Microbiology, Год журнала: 2024, Номер 15

Опубликована: Май 15, 2024

Legumes are renowned for their distinctive biological characteristic of forming symbiotic associations with soil bacteria, mostly belonging to the Rhizobiaceae familiy, leading establishment root nodules. Within these nodules, rhizobia play a pivotal role in converting atmospheric nitrogen into plant-assimilable form. However, it has been discerned that nodules legumes not exclusively inhabited by rhizobia; non-rhizobial endophytic bacteria also reside within them, yet functions remain incompletely elucidated. This comprehensive review synthesizes available data, revealing Bacillus and Pseudomonas most prevalent genera nodule succeeded Paenibacillus , Enterobacter Pantoea Agrobacterium Microbacterium . To date, bibliographic data show Glycine max followed Vigna radiata, Phaseolus vulgaris Lens culinaris main hosts bacteria. Clustering analysis consistently supports prevalence as abundant alongside Although populations do induce formation, presence is associated various plant growth-promoting properties (PGPs). These known mediate important mechanisms such phytostimulation, biofertilization, biocontrol, stress tolerance, emphasizing multifaceted roles endophytes. Importantly, interactions between non-rhizobia may exert influence on leguminous host plants. particularly shown co-inoculation both types which synergistic effects growth, yield, nodulation often measured. Moreover pronounced under non-stress conditions, surpassing impact single inoculations alone.

Язык: Английский

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Microbial endophytes: prospects in biological control of plant pathogens and plant growth stimulation for sustainable agriculture

Elsevier eBooks, Год журнала: 2024, Номер unknown, С. 375 - 422

Опубликована: Янв. 1, 2024

Язык: Английский

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The Effects of Osmosis and Thermo-Priming on Salinity Stress Tolerance in Vigna radiata L.

Sustainability, Год журнала: 2022, Номер 14(19), С. 12924 - 12924

Опубликована: Окт. 10, 2022

A plant’s response to osmotic stress is a complex phenomenon that causes many abnormal symptoms due limitations in growth and development or even the loss of yield. The current research aimed analyze agronomical, physiological, biochemical mechanisms accompanying acquisition salt resistance Vigna radiata L. variety ‘Ramzan’ using seed osmo- thermopriming presence PEG-4000 4 °C under induced salinity stresses 100 150 mM NaCl. Seeds were collected from CCRI, Nowshera, sowing was undertaken triplicate at Department Botany, Peshawar University, during 2018–2019 growing season. Rhizospheric soil pH (6.0), E.C (2.41 ds/m), field capacity, moisture content level estimated present study. We observed results agronomic characteristics, i.e., shoot fresh weight dry T9 (4oC + NaCl), root T4 (PEG T5 T6 NaCl) highest, followed by lowest T1 (both weights) T2 (shoot weights). Similarly, maximum minimum T6, highest T6. agronomical parameters including masses (T4, T4), leaf area index, germination area, total biomass, vigor index treatment T9, relative water use efficiency highest. Plant physiological traits such as proline, SOD enhanced T1, carotenoids T2, chlorophyll protein levels T4, whereas sugar POD treatments T7 T8. principal component analysis enclosed 63.75% variation among all biological components. These confirmed positive osmopriming (PEG) (4 °C) on most features with great tolerance low-saline (PEG), °C), T8 while it susceptible case high application. found constraining impact several priming techniques improved low salinity, which regarded economically inexpensive initiated numerous metabolic processes plants, hence decreasing time. study will have major applications for combatting problem climate change Pakistan.

Язык: Английский

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Seed Priming Modulates Physiological and Agronomic Attributes of Maize (Zea mays L.) under Induced Polyethylene Glycol Osmotic Stress

ACS Omega, Год журнала: 2023, Номер 8(25), С. 22788 - 22808

Опубликована: Июнь 15, 2023

Drought and osmotic stresses are major threats to agricultural crops as they affect plants during their life cycle. The seeds more susceptible these germination establishment of seedlings. To cope with abiotic stresses, various seed priming techniques have broadly been used. present study aimed assess under stress. Osmo-priming chitosan (1 2%), hydro-priming distilled water, thermo-priming at 4 °C were used on the physiology agronomy

Язык: Английский

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Efficacy of Naphthyl Acetic Acid Foliar Spray in Moderating Drought Effects on the Morphological and Physiological Traits of Maize Plants (Zea maysL.)

ACS Omega, Год журнала: 2023, Номер 8(23), С. 20488 - 20504

Опубликована: Май 29, 2023

The threat of varying global climates has greatly driven the attention scientists, as climate change increases odds worsening drought in many parts Pakistan and world decades ahead. Keeping view forthcoming change, present study aimed to evaluate influence levels induced stress on physiological mechanism resistance selected maize cultivars. sandy loam rhizospheric soil with moisture content 0.43-0.5 g g-1, organic matter (OM) 0.43-0.55 g/kg, N 0.022-0.027 P 0.028-0.058 K 0.017-0.042 g/kg was used experiment. findings showed that a significant drop leaf water status, chlorophyll content, carotenoid linked an increase sugar, proline, antioxidant enzyme accumulation at p < 0.05 under stress, along protein dominant response for both SVI-I & II, RSR, LAI, LAR, TB, CA, CB, CC, peroxidase (POD), superoxide dismutase (SOD) were studied variance analysis terms interactions between NAA treatment found after 15 days. It been exogenous application alleviated inhibitory effect only short-term but yield loss due long-term osmotic will not be faced employing growth regulators. Climate-smart agriculture is approach reduce detrimental impact fluctuations, such crop adaptability before they have production.

Язык: Английский

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Mitigation effect of alpha-tocopherol and thermo-priming in Brassica napus L. under induced mercuric chloride stress

BMC Plant Biology, Год журнала: 2024, Номер 24(1)

Опубликована: Фев. 13, 2024

Abstract Soil pollution with heavy metals has grown to be a big hassle, leading the loss in farming production particularly developing countries like Pakistan, where no proper channel is present for irrigation and extraction of these toxic metals. The study aims ameliorate damages caused by metal ions (Hg-Mercury) on rapeseed ( Brassica napus L.) via growth regulator (α-tocopherol 150 mg/L) thermopriming technique at 4 °C 50 maintain plant agronomical physiological characteristics. In pot experiments, we designed total 11 treatments viz.( T0 (control), T1 (Hg4ppm), T2 (Hg8ppm), T3 (Hg4ppm + °C), T4 tocopherol (150 m/L)), T5 T6 mg/L)), T7 (Hg8ppm T8 T9 T10 results revealed that chlorophyll content p < 0.05 antioxidant enzymes such as catalase, peroxidase, malondialdehyde enhanced up maximum level = Hg4ppm (50 under ppm mercuric chloride stress), suggesting high temperature initiate system reduce photosystem damage. However, protein, proline, superoxide dismutase 0.05, carotenoid, soluble sugar, ascorbate peroxidase were increased non-significantly > 0.05) 8 stress (T9 Hg8ppm °C) representing tolerance selected specie synthesizing osmolytes resist oxidation mechanism. Furthermore, reduction % MC (moisture content) easily improved foliar application α-tocopherol mg/L), remarkable increase vigor germination energy. It resulted inhibitory effect only lower concentration (4 ppm) was ameliorated exogenous levels proline activities maintaining seedling development contaminated soil.

Язык: Английский

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Combined application of plant growth-promoting bacteria and iron oxide nanoparticles ameliorates the toxic effects of arsenic in Ajwain (Trachyspermum ammi L.)

Frontiers in Plant Science, Год журнала: 2022, Номер 13

Опубликована: Дек. 28, 2022

Soil contamination with toxic heavy metals [such as arsenic (As)] is becoming a serious global problem because of the rapid development social economy. Although plant growth-promoting bacteria (PGPB) and nanoparticles (NPs) are major protectants to alleviate metal toxicity, study these chemicals in combination ameliorate effects As limited. Therefore, present was conducted investigate combined different levels Providencia vermicola (5 ppm 10 ppm) iron oxide (FeO-NPs) (50 mg/l-1 100 mg/l-1) on growth biomass, photosynthetic pigments, gas exchange attributes, oxidative stress response antioxidant compounds (enzymatic non-enzymatic), their specific gene expression, sugars, nutritional status plant, organic acid exudation pattern accumulation from parts plants, electron microscopy under soil, which spiked [0 μM (i.e., no As), 50 μM, μM] Ajwain (Trachyspermum ammi L.) seedlings. Results showed that increasing soil significantly (p< 0.05) decreased contents roots shoots destroyed ultra-structure membrane-bound organelles. In contrast, increased indicators term malondialdehyde, hydrogen peroxide, electrolyte leakage, also patter T. The negative impact toxicity can overcome application PGPB (P. vermicola) FeO-NPs, ultimately biomass by capturing reactive oxygen species, seedlings decreasing plants. Our results FeO-NPs were more sever better when we compared same treatment soil. Research findings, therefore, suggest P. seedlings, resulting improved composition stress, depicted balanced acids.

Язык: Английский

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Impact of Green Manuring on Health of Low Fertility Calcareous Soils

Land, Год журнала: 2023, Номер 12(3), С. 546 - 546

Опубликована: Фев. 23, 2023

This study was conducted in a rice-based cropping scheme to investigate the impact of green manuring on soil health, considering physicochemical properties and sustainable crop production. A field experiment started 2 November 2015 completed 15 April 2018 under rice–berseem (Trifolium alexandrinum) system calcareous soil. Two patterns, rice–wheat–sesbania (rostrata), were compared with commonly practiced rice–wheat (Oryza sativa-Triticumaestivum) pattern. Green berseem (last cutting) along 50, 75, 100% recommended fertilizer doses nitrogen, phosphorus, potassium (NPK) NPK fertilization control (no fertilizer). The plant growth parameters rice, including height, tillers per at maturity, yield data, recorded harvest. pre-sowing analysis revealed that experimental low salts, nutrient status very low. results indicated substantially enhanced grain straw rice crops. combined 75% produced highest (5.83 t ha−1 year III) other treatments. showed bulk density reduced while porosity, organic carbon, N, K, P contents significantly improved. From this study, it is conditions, regular use can improve growth, yield, and, therefore, should be adopted by farmers.

Язык: Английский

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Positive and Negative Impacts of Biochar on Microbial Diversity

Sustainable agriculture reviews, Год журнала: 2023, Номер unknown, С. 311 - 330

Опубликована: Янв. 1, 2023

Язык: Английский

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Perspectives on the Use of Biopolymeric Matrices as Carriers for Plant-Growth Promoting Bacteria in Agricultural Systems

Microorganisms, Год журнала: 2023, Номер 11(2), С. 467 - 467

Опубликована: Фев. 13, 2023

The subject of this review is to discuss some aspects related the use biopolymeric matrices as carriers for plant-growth promoting bacteria (PGPB) in agricultural systems a possible technological solution establishment production practices that result fewer adverse impacts on environment, reporting promising and interesting results topic. Results from encapsulation different PGPB alginate, starch, chitosan, gelatin are discussed, systematizing advances made area knowledge recent years. Encapsulation these has been shown be an effective method protecting them unsuitable environments, new products can act biofertilizers biopesticides play important role sustainable modern agriculture. These solutions replacing deleterious chemical fertilizers pesticides, maintaining soil fertility stability, improving crop productivity food security. Finally, near future, scale-up studies will have provide information about large-scale materials well their application field under biotic abiotic stress conditions.

Язык: Английский

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