Nitrogen fixation and transcriptome of a new diazotrophic Geomonas from paddy soils DOI Creative Commons
Guo‐Hong Liu, Shang Yang,

Shuang Han

et al.

mBio, Journal Year: 2023, Volume and Issue: 14(6)

Published: Oct. 19, 2023

ABSTRACT Nitrogen gas (N 2 ) fixation driven by diazotrophs is a crucial process for supplying nitrogen to paddy soil ecosystems. The genus Geomonas has been considered be an important potential diazotroph in soils, but direct experimental evidence of the nitrogen-fixing ability pure culture still lacking. Hence, we aimed demonstrate this capability and shed light on how was regulated response ammonium (NH 4 + . In study, determined that key nitrogenase gene ( nifH present 50 isolates from soils. Members contained minimum cluster nifBHDKEN based genomic analysis, implying species had fix nitrogen. Acetylene reduction assay (ARA), 15 N isotope labeling, total accumulation assays validated was, indeed, able culture. Under conditions, cell morphology changed short rod-shaped (with NH long flagella became longer thicker. expression genes correlated transcriptome quantified Expression associated with nitrogenase, flavin-based electron bifurcation complexes (such as FixAB system), uptake, transformation (e.g., glutamine glutamate synthetases) were significantly upregulated under suggesting these mechanisms might involved These results verified RT-qPCR. Taken together, our possess expand understanding ecological significance applications IMPORTANCE metabolic feature its application plant growth-promoting rhizobacterium. This research great importance it provides first comprehensive We isolated number strains soils strains. study demonstrated harbored encoding do Geobacter Anaeromyxobacter same class Deltaproteobacteria -dependent growth regulation fixation. establishes advances

Language: Английский

Understanding AP2/ERF Transcription Factor Responses and Tolerance to Various Abiotic Stresses in Plants: A Comprehensive Review DOI Open Access
Ziming Ma,

Lanjuan Hu,

Wenzhu Jiang

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(2), P. 893 - 893

Published: Jan. 11, 2024

Abiotic stress is an adverse environmental factor that severely affects plant growth and development, plants have developed complex regulatory mechanisms to adapt these unfavourable conditions through long-term evolution. In recent years, many transcription families of genes been identified regulate the ability respond abiotic stresses. Among them, AP2/ERF (APETALA2/ethylene responsive factor) family a large class plant-specific proteins response stresses can also play role in regulating development. This paper reviews structural features classification factors are involved transcriptional regulation, reciprocal proteins, downstream genes, hormone-dependent signalling hormone-independent pathways stress. The synergise with hormone form cross-regulatory networks tolerance Many activate expression stress-responsive dependent or independent abscisic acid ethylene ethylene. addition, gibberellin, auxin, brassinosteroid, cytokinin-mediated responses. study interacting as well identification their target provide us more comprehensive understanding mechanism action stress, which improve plants' tolerate theoretical basis for increasing yield under

Language: Английский

Citations

60
Organic carbon and nitrogen accrual evidenced by the underpinning protection mechanisms in soil profile following contrasting 35-year fertilization regimes DOI
Muhammad Abrar, Muhammad Ahmed Waqas, Khalid Mehmood

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 376, P. 124482 - 124482

Published: Feb. 10, 2025

Language: Английский

Citations

1
Short Term Effects of Chemical Fertilizer, Compost and Zeolite on Yield of Lettuce, Nutrient Composition and Soil Properties DOI Creative Commons
Victor Kavvadias, Zacharias Ioannou,

Evangelia Vavoulidou

et al.

Agriculture, Journal Year: 2023, Volume and Issue: 13(5), P. 1022 - 1022

Published: May 7, 2023

The proper management of treated agricultural wastes (e.g., composts) contributes to the protection water and soil quality by reducing use chemical fertilizers, lowering leachate, protecting renewable nonrenewable resources. Natural zeolites, particularly clinoptilolite, can be used in agriculture improve increase yields due their unique properties. objective study was test effects co-addition compost, zeolite ammonium-based fertilizer on Above-ground Fresh Weight (AFW) lettuce (Lactuca sativa L.), leaf nutrients fertility. To this aim, a pot experiment carried out at Department Soil Science Athens, which is located region Attica, area central Greece. Two levels olive compost originated from leaves (0% 10% v/v), three (0%, 2%, 5% w/w) two fertilization (no NPK fertilization) were combined. Furthermore, different soils introduced, one moderately acidic (pH = 5.6) sandy loam texture (Ac-LT), other slightly alkaline 7.7) clay (Al-HT). Results showed that response yield application type-dependent, whereas significantly improved AFW both types. availability macronutrients (P, K, Na) soil, as well concentration leaves, increased most cases. Conversely, impact inorganic DTPA extractable micronutrients micronutrient contents found associated with type soil. recorded significant reduction available Fe, Cu, Mn AL-HT DTPA-Mn -Zn enhanced Ac-LT Comparable patterns also documented for leaves. In cases, had beneficial plant nutrients. On contrary, responses properties addition registered. main effect treatment pH, EC, SOM, total N, P positive types, except pH EC Al-HT hand, exchangeable K Na reduced compost. Zeolite substantially P, plants, concentrations DTPA-extractable largely unaffected. addition, results our indicated co-additions organic amendments did not any yield, nutrient content It suggested degree changes SOM) result amendment interaction are strongly related type.

Language: Английский

Citations

20
MicroRNA: A Dynamic Player from Signalling to Abiotic Tolerance in Plants DOI Open Access
Ziming Ma,

Lanjuan Hu

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(14), P. 11364 - 11364

Published: July 12, 2023

MicroRNAs (miRNAs) are a class of non-coding single-stranded RNA molecules composed approximately 20–24 nucleotides in plants. They play an important regulatory role plant growth and development as signal abiotic tolerance. Some stresses include drought, salt, cold, high temperature, heavy metals nutritional elements. miRNAs affect gene expression by manipulating the cleavage, translational or DNA methylation target messenger RNAs (mRNAs). This review describes current progress field considering two aspects: (i) way produced regulated (ii) miRNA/target genes used responses to various stresses. Studying molecular mechanism action miRNAs’ downstream could optimize genetic manipulation crop conditions provide more theoretically optimized basis for improving production. MicroRNA is novel signalling interplant communication relating

Language: Английский

Citations

17
Molecular Mechanisms Determining the Role of Bacteria from the Genus Azospirillum in Plant Adaptation to Damaging Environmental Factors DOI Open Access
Maria V. Gureeva, Artem P. Gureev

International Journal of Molecular Sciences, Journal Year: 2023, Volume and Issue: 24(11), P. 9122 - 9122

Published: May 23, 2023

Agricultural plants are continuously exposed to environmental stressors, which can lead a significant reduction in yield and even the death of plants. One ways mitigate stress impacts is inoculation plant growth-promoting rhizobacteria (PGPR), including bacteria from genus Azospirillum, into rhizosphere Different representatives this have different sensitivities or resistances osmotic stress, pesticides, heavy metals, hydrocarbons, perchlorate also ability consequences such stresses for Bacteria Azospirillum contribute bioremediation polluted soils induce systemic resistance positive effect on under by synthesizing siderophores polysaccharides modulating levels phytohormones, osmolytes, volatile organic compounds plants, as well altering efficiency photosynthesis antioxidant defense system. In review, we focus molecular genetic features that provide bacterial various factors Azospirillum-related pathways increasing unfavorable anthropogenic natural factors.

Language: Английский

Citations

15
Reducing carbon footprints and increasing net ecosystem economic benefits through dense planting with less nitrogen in double-cropping rice systems DOI
Wentao Zhou,

Wenfei Long,

Hongrui Wang

et al.

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 891, P. 164756 - 164756

Published: June 8, 2023

Language: Английский

Citations

14
5-ALA, DTA-6, and Nitrogen Mitigate NaCl Stress by Promoting Photosynthesis and Carbon Metabolism in Rice Seedlings DOI Creative Commons
Yaxin Wang,

Chaolu Tan,

Yinghao Li

et al.

Metabolites, Journal Year: 2024, Volume and Issue: 14(3), P. 142 - 142

Published: Feb. 27, 2024

A large number of dead seedlings can occur in saline soils, which seriously affects the large-scale cultivation rice. This study investigated effects plant growth regulators (PGRs) and nitrogen application on seedling salt tolerance (Oryza sativa L.), is great significance for agricultural production practices. conventional rice variety, “Huang Huazhan”, was selected this study. Non-salt stress treatments included 0% NaCl (CK treatment), CK + 0.05 g N/pot (N 40 mg·L−1 5-aminolevulinic acid (5-ALA) (A 30 diethylaminoethyl acetate (DTA-6) (D treatment). Salt 0.3% (S N (NS (AS D (DS When 3 leaves 1 heart emerged from soil, plants were sprayed with DTA-6 5-ALA, followed by (w/w) to soil after 24 h. Seedling morphology photosynthetic indices, as well carbohydrate metabolism key enzyme activities, determined each treatment. Our results showed that N, A, promoted growth, photosynthesis, levels, activities enzymes involved carbon when compared The treatment had most significant effect, increases aboveground dry weight net rates (Pn) ranging 17.74% 41.02% 3.61% 32.60%, respectively. Stomatal limiting values (Ls) significantly decreased 19.17% 43.02%. inhibited growth. NS, AS, DS alleviated morphological physiological damage S AS effective improving morphology, promoting increasing activities. After treatment, weight, rate, soluble sugar content, total sucrose synthase, amylase 17.50% 50.79%, 11.39% 98.10%, 20.20% 80.85%, 21.21% 33.53%, 22.17% 34.19%, respectively, In summary, foliar sprays DTA-6, additional fertilizer enhanced increased lowered Ls values, improved tolerance. Spraying two regulators, 5-ALA quantitatively effect fertilizer, comparable regulation. provides basis efficient production.

Language: Английский

Citations

5
Synergistic Role of Fusarium solani IK-105 and Humic Acid in Combating Lead Stress in Tomato Plants through physiological, biochemical and molecular Modulation DOI Creative Commons
Ibrahim Khan, Sajjad Asaf, Sang‐Mo Kang

et al.

Plant Stress, Journal Year: 2025, Volume and Issue: unknown, P. 100780 - 100780

Published: Feb. 1, 2025

Language: Английский

Citations

0
Effects of Zeolite Application and Inorganic Nitrogen Fertilization on Growth, Productivity, and Nitrogen and Water Use Efficiency of Maize (Zea mays L.) Cultivated Under Mediterranean Conditions DOI Open Access
Ioanna KAKABOUKI, Ioannis ROUSSIS, Antonios Mavroeidis

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(5), P. 2178 - 2178

Published: March 3, 2025

Nitrogen (N) fertilizer application is one of the most crucial agronomic management practices for increasing grain yield in maize crops. However, long may adversely affect soil quality. For achieving sustainable agricultural production, current research set out to evaluate short-term effects addition zeolite as a amendment and N fertilization on growth, yield, quality, N- water-use efficiency three locations (Athens, Messolonghi, Karditsa) Greece. Each experiment up during spring–summer 2024 cultivation period was laid split-plot design with main plots (Zeolite treatments: 0, 5, 7.5 t ha−1) four sub-plots (N 100, 150, 200 kg ha−1). The results revealed that rate from 0 ha−1 led significant increase highest value (13.46, 12.46, 14.83 Athens, Karditsa, respectively) observed at ha−1. In same manner, inorganic ha−1, also increased yield. general, properties (soil organic matter, total nitrogen, porosity, moisture content, infiltration rate), root shoot growth (root length density, plant height, leaf area index dry weight), content uptake grains, aerial biomass, well as, thousand kernel weight, harvest (NHI), water use (WUE), were positively affected by both examined factors. conclusion, this study proved rates respectively, improved properties, promoted development, biomass uptake, NHI, WUE crop cultivated clay–loam soils under Mediterranean conditions, where experimental trials up.

Language: Английский

Citations

0
Harnessing Bacterial Potential to Reduce Nitrous Oxide Emissions From Agricultural Soils DOI Creative Commons
Muhammad Waqas, Brajesh K. Singh,

Chen Yaning

et al.

Journal of Sustainable Agriculture and Environment, Journal Year: 2025, Volume and Issue: 4(1)

Published: March 1, 2025

ABSTRACT Reducing N₂O emissions from farmlands is crucial to mitigate climate change. A recent scientific breakthrough employed an innovative method inoculate farmland soil with a bacterium, resulting in significant reduction of emissions. This commentary identifies promising environments and practices for further emission reduction.

Language: Английский

Citations

0