Climate change's ripple effect on water supply systems and the water-energy nexus – A review

Water Resources and Industry, Journal Year: 2024, Volume and Issue: 32, P. 100266 - 100266

Published: Aug. 27, 2024

Language: Английский

---

Production, Optimization, and Partial Purification of Alkali-Thermotolerant Proteases from Newly Isolated Bacillus subtilis S1 and Bacillus amyloliquefaciens KSM12

Processes, Journal Year: 2022, Volume and Issue: 10(6), P. 1050 - 1050

Published: May 25, 2022

Proteases that can remain active under extreme conditions such as high temperature, pH, and salt concentration are widely applicable in the commercial sector. The majority of proteases rendered useless harsh industries. Therefore, there is a need to search for new tolerate function conditions, thus improving their value. In this study, 142 bacterial isolates were isolated from diverse alkaline soil habitats. two highest protease-producing identified Bacillus subtilis S1 amyloliquefaciens KSM12, respectively, based on 16S rRNA sequencing. Optimal protease production was detected at pH 8, 37 °C, 48 h, 5% (w/v) NaCl (99.8 U/mL) 9, 72 10% KSM12 (94.6 U/mL). molecular weight these partially purified then assessed SDS-PAGE (17 kDa 65 KSM12), respectively. maximum activity 40 60 °C. These results suggest secreted by suitable industries working highly environment.

Language: Английский

---

Biogeographical survey of soil microbiomes across sub-Saharan Africa: structure, drivers, and predicted climate-driven changes

Microbiome, Journal Year: 2022, Volume and Issue: 10(1)

Published: Aug. 23, 2022

Abstract Background Top-soil microbiomes make a vital contribution to the Earth’s ecology and harbor an extraordinarily high biodiversity. They are also key players in many ecosystem services, particularly arid regions of globe such as African continent. While several recent studies have documented patterns global soil microbial ecology, these largely biased towards widely studied rely on models interpolate diversity other where there is low data coverage. This case for sub-Saharan Africa, number regional very comparison continents. Results The aim this study was conduct extensive biogeographical survey Africa’s top-soil microbiomes, with specific focus investigating environmental drivers across region. In study, we sampled 810 sample sites 9 countries used taxonomic barcoding profile regions. Our results showed that nations included qualitatively distinguishable microbiomes. addition, using chemistry climatic extracted from same sites, demonstrated microbiome shaped by broad range factors, most notably pH, precipitation, temperature. Through use structural equation modeling, developed model predict how biodiversity Africa might be affected future climate change scenarios. predicted Kenya will negatively increased temperatures decreased while fungal Benin benefit increase annual precipitation. Conclusion represents date. Importantly, has allowed us identify vulnerable losses productivity due change. Considering reliance economies region rain-fed agriculture, provides crucial information support conservation efforts heavily impacted

Language: Английский

---

Potential of potent purple nonsulfur bacteria isolated from rice-shrimp systems to ameliorate rice (Oryza sativa L.) growth and yield in saline acid sulfate soil

Journal of Plant Nutrition, Journal Year: 2022, Volume and Issue: 46(3), P. 473 - 494

Published: June 15, 2022

In rice-shrimp farming systems, the high level of sodium that shrimps are able to grow in may create an adverse environment for rice. This research aimed isolate purple nonsulfur bacteria (PNSB) from fields and select strains were resistant H+, Al3+, Fe2+ Mn2+, can produce plant growth promoting substances such as 5-aminolevulinic acid, exopolymeric substances, indole-3-acetic acid siderophores. The selected applied a soil pot experiment determine their ability enhance rice yield. From 63 PNSB isolated 21 paddy four properties biofertilizers promoters (PGP). They all identified Luteovulum sphaeroides. A randomized complete block design incorporating six treatments was used investigate ameliorate yield saline acidic with water irrigation at 4‰. cultures 1.90 × 105 CFU g−1 dry weight three times, along normal chemical fertilizers, monitored parameters grain significantly improved toxic Al3+ content 10.8 meq 100 g−1. mixed most effectively increased (86.8%) compared no PNSB. Remediation exhibited decreased exchangeable Na proline leaves. could act biofertilizers, PGP bioremediators potential systems sustainable cultivation.

Language: Английский

---

Salt-tolerant endophytic bacterium Enterobacter ludwigii B30 enhance bermudagrass growth under salt stress by modulating plant physiology and changing rhizosphere and root bacterial community

Frontiers in Plant Science, Journal Year: 2022, Volume and Issue: 13

Published: Aug. 2, 2022

Osmotic and ionic induced salt stress suppresses plant growth. In a previous study, Enterobacter ludwigii B30, isolated from Paspalum vaginatum, improved seed germination, root length, seedling length of bermudagrass (Cynodon dactylon) under stress. this E. B30 application fresh weight dry weight, carotenoid chlorophyll levels, catalase superoxide dismutase activities, indole acetic acid content K+ concentration. Without treatment, decreased malondialdehyde proline content, Y(NO) Y(NPQ), Na+ concentration, 1-aminocyclopropane-1-carboxylate, abscisic content. After inoculation, bacterial community richness diversity in the rhizosphere increased compared with adjacent to roots Turf quality were positively correlated incidence phyla Chloroflexi Fibrobacteres soil, (IAA) level was Actinobacteria roots. Our results suggest that can improve ability accumulate biomass, adjust osmosis, photosynthetic efficiency selectively absorb ions for reducing stress-induced injury, while changing structure They also provide foundation understanding how microorganisms respond endophyte inoculation.

Language: Английский

---