Bacillus velezensis HR6-1 enhances salt tolerance in tomato by increasing endogenous cytokinin content and improving ROS scavenging

Microbiological Research, Год журнала: 2025, Номер unknown, С. 128143 - 128143

Опубликована: Март 1, 2025

Язык: Английский

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The role of plant growth-promoting rhizobacteria in alleviating the deleterious effects of abiogenic stressors in underground vegetable crops

Elsevier eBooks, Год журнала: 2025, Номер unknown, С. 191 - 214

Опубликована: Янв. 1, 2025

Язык: Английский

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An effective sustainable strategy: Plant Growth Promoting Rhizobacteria (PGPR), Bacillus atrophaeus, in maize plants against challenging environments

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116778 - 116778

Опубликована: Апрель 1, 2025

Язык: Английский

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Evaluation of maize varieties via multivariate analysis: Roles of ionome, antioxidants, and autophagy in salt tolerance

PLANT PHYSIOLOGY, Год журнала: 2024, Номер 196(1), С. 195 - 209

Опубликована: Июнь 12, 2024

Abstract Salt stress presents a major obstacle to maize (Zea mays L.) production globally, impeding its growth and development. In this study, we aimed identify salt-tolerant varieties through evaluation using multivariate analysis shed light on the role of ionome, antioxidant capacity, autophagy in salt tolerance. We investigated multiple indices, including shoot fresh weight, dry plant height, chlorophyll content, electrolyte leakage, potassium sodium contents, potassium-to-sodium ratio, 20 at V3 stage under (200 mm NaCl). The results showed significant differences accompanied by wide range their coefficient variation, suggesting suitability for screening Based D values, clustering categorized into 4 distinct groups. TG88, KN20, LR888 (group I) emerged as most varieties, while YD9, XD903, LH151 IV) were identified sensitive. TG88 showcased nutrient preservation redistribution stress, surpassing YD9. It maintained nitrogen iron levels roots, YD9 experienced decreases. redistributed more nitrogen, zinc, leaves, outperforming preserved sulfur both roots unlike Additionally, demonstrated higher enzymatic capacity (superoxide dismutase, peroxidase, ascorbate glutathione reductase) enzyme gene expression levels, upregulation autophagy-related (ATG) genes (ZmATG6, ZmATG8a, ZmATG10), increased autophagic activity. Overall, study offers insights accurate methods physiological mechanisms underlying tolerance identifies promising materials further research.

Язык: Английский

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Effects of salt stress on the rhizosphere soil microbial communities of Suaeda salsa (L.) Pall. in the Yellow River Delta

Ecology and Evolution, Год журнала: 2024, Номер 14(9)

Опубликована: Сен. 1, 2024

Abstract Studies have shown that the microbiome of saline‐tolerant plants plays a significant role in promoting salt stress non‐saline‐tolerant plants, but microorganisms are still unclear. In present study, microbial diversity changes Suaeda salsa (L.) Pall . Yellow River Delta region were investigated. bacterial community, dominant bacteria rhizosphere soil low‐saline (YDL), moderate‐saline (YDM), and high‐saline (YDH) groups Proteobacteria , Chloroflexi Bacteroidota Actinobacteriota (at phylum level), while Ascomycota Basidiomycota fungi fungal community. At family level, with increase salinity, relative abundance Rhodobacteraceae (bacterial community), Thermoascaceae Phaffomycetaceae (fungal community) gradually increased; to best our knowledge, there no reports on relationship between families stress. genus Salinimicrobium was bacterium YDL, YDM, YDH groups, Byssochlamys Wickerhamomyces increased, knowledge Salinity mainly affected community abundance, it had little effect abundance. The group dominated by unknown origin (52.76%), accounted for 26.46% 20.78% communities YDM YDL respectively. (relative 44.44%), followed (29.42%) (26.14%). These results provide better understanding saline–alkali‐tolerant laying foundation developing plant microbiome.

Язык: Английский

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Transcriptomic and comprehensive analysis of salt stress–alleviating mechanisms by Ensifer sesbaniae DY22 in soybean

Environmental and Experimental Botany, Год журнала: 2024, Номер 226, С. 105908 - 105908

Опубликована: Июль 18, 2024

Soil salinization poses a major constraint to crop productivity worldwide. Cultivated soybean (Glycine max) is oilseed with moderate salt tolerance. Accumulating evidence indicates that plant growth-promoting rhizobacteria (PGPR) can promote growth and reduce the negative impacts of stress on crops. In present study, we isolated DY22, newly identified strain Ensifer sesbaniae, from saline soil determined it showed high tolerance 4 % NaCl. DY22 treatment enhanced compared salt-treated control seedlings. We analyzed mechanism underlying DY22-mediated in via physiological, biochemical, transcriptomic analyses. inoculation significantly increased chlorophyll accumulation soluble sugar proline contents under stress. Moreover, antioxidant enzyme activity reduced malondialdehyde non-inoculation Transcriptomic analysis revealed 8911 differentially expressed genes (4412 upregulated 4499 downregulated) DY22-inoculated plants high-salinity conditions control. GO KEGG pathway suggested affects transcriptional responses involved photosynthesis, oxidation-reduction, hormone-mediated pathways, especially auxin, jasmonic acid, abscisic acid signaling Overall, these findings highlight important contribution mitigating deleterious effects salinity development provide valuable insights into mechanisms plant–microbes interactions.

Язык: Английский

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Mitigating salt stress in Zea mays: Harnessing Serratia nematodiphila-biochar-based seed coating for plant growth promotion and rhizosphere microecology regulation

Industrial Crops and Products, Год журнала: 2024, Номер 223, С. 120164 - 120164

Опубликована: Дек. 3, 2024

Язык: Английский

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Effects of multiwalled carbon nanotube and Bacillus atrophaeus application on crop root zone thermal characteristics of saline farmland

Heliyon, Год журнала: 2023, Номер 9(2), С. e13510 - e13510

Опубликована: Фев. 1, 2023

Presently, the effects of crop roots on root zone thermal characteristics are poorly understood, and new fertilizers rarely considered from perspective changing characteristics. This study explored effect applying two fertilizers, multiwalled carbon nanotubes (MWCNTs) Bacillus atrophaeus (B. atrophaeus), saline farmland soils through in situ measurements. The results showed that MWCNTs B. could indirectly affect by growth. Combined application promote both to induce positive effects, growth, significantly alleviate adverse soil salinization. conductivity heat capacity shallow were reduced due presence roots, while opposite was true deep zone. For example, 0-5 cm rich MWCNT treatment 0.8174 W m-1 ·K-1, poor 13.42% higher than can also change spatial distribution moisture, salt, particle size influencing root-soil interactions affecting In addition, directly properties. salt content was, more obvious positively correlated with moisture content, specific surface area negatively fresh dry weights. summary, affected adjust temperature

Язык: Английский

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Impact of Sea Rice Planting on Enzymatic Activity and Microbial Community of Coastal Soils: Focus on Proteinase

Agronomy, Год журнала: 2023, Номер 13(8), С. 2089 - 2089

Опубликована: Авг. 9, 2023

Soil proteinase and proteinase-producing microbial community are closely associated with soil fertility health. Sea rice has been planted in the coastal beach of Jiaozhou Bay, China, an effort to transform saline-alkali into arable land. However, knowledge regarding bacterial degradation organic nitrogen sea soils is limited. This study aims investigate physicochemical characteristics enzymatic activities soils, as well communities by both Illumina sequencing-based culture-independent technology culture-dependent methods. exhibited a lower salinity higher matter content activity, increase richness diversity community, compared adjacent non-rice soils. The Proteobacteria phylum Gammaproteobacteria class were dominant showing abundance than reference Planococcus genus Bacillus-like abundant cultivable bacteria isolated from Furthermore, significant proportion extracellular produced consisted serine proteinases metalloproteinases. These findings provided new insights agricultural regions.

Язык: Английский

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Coastal Almond-Leaved Pear (Pyrus spinosa) Seedlings’ Responses to Saline Stress Alleviated by Formulated L-Methionine and Bacterial Exogenous Soil Application

Horticulturae, Год журнала: 2024, Номер 10(8), С. 849 - 849

Опубликована: Авг. 10, 2024

Coastal Pyrus spinosa seedlings were tested for their developmental, chlorophyll content and antioxidant performance under soil saline conditions where bacterial l-methionine exogenous treatments applied as potential alleviation stress schemes. Scaling up stress, the number of formed lateral shoots was reduced in all treatments. Medium salt (75 mM NaCl) demonstrated a rather unified decline shoot fresh weight values, which became toxic at 100 NaCl, with to 89.1% losses, comparison unchallenged status. Both applications increased root/shoot ratio, providing developmental boost root growth. Total values (May–July) did not differ among non-stressed plantlets independently treatment. All experimental plantlet lines activity on scaled NaCl enrichment. Νo differences orientation angle frequencies observed while exposure took place. In brief, spring–summer P. can be manageable, achieving higher ratio upregulating leaf optimizing growth upon supplementation. However, many examined parameters found extensively different between exogenously treated non-supplemented ones, suggesting role intergenerational transgenerational memory.

Язык: Английский

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