Article
Biotechnology & Applied Microbiology
Guohuan Zhong, Wenfeng Pan, Ziliang Huang, Kaixin Guo, Jingjing Hu, Peihua Liu, Sheng Chen, Yulan Wang, Liping Ai, Zebo Huang
Summary: This study revealed distinct physicochemical and biofunctional properties of N. sphaeroides polysaccharides during colony growth stages, with a significant decrease in high/low molecular weight ratio. Both polysaccharides and oligosaccharides demonstrated antioxidant activities, while only oligosaccharides showed neuroprotective effects, suggesting their potential as novel geroprotectors. Additionally, oligosaccharides were found to upregulate stress and proteostasis-associated genes in C. elegans.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Engineering, Environmental
Hillol Chakdar, Shobit Thapa, Amit Srivastava, Pratyoosh Shukla
Summary: Cyanobacteria have emerged as a potential option for bioremediation of heavy metals due to their unique adaptations and robust metabolic machineries. Understanding their physiological responses and regulation at the molecular level is necessary to identify candidate genes and proteins for improving bioremediation efficiency. These approaches might pave new possibilities of implementing genetic engineering strategies in the future.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Geosciences, Multidisciplinary
Lipeng Wu, Shirong Zhang, Ronghui Ma, Mengmeng Chen, Wenliang Wei, Xiaodong Ding
Summary: Organic amendments significantly increased soil organic C stock in saline paddy fields, with biochar treatment showing the highest increase. However, rice straw and organic fertilizer were found to be more effective in improving soil aggregate stability compared to biochar. This research highlights the importance of organic amendments in enhancing soil quality and carbon sequestration in saline-alkaline soils.
Article
Biotechnology & Applied Microbiology
Korbinian Sinzinger, Doris Schieder, Broder Ruehmann, Volker Sieber
Summary: This study investigates the utilization of biomass from various Nostoc strains, elucidates the complex sugar profiles, and examines the biocompositions and enzymatic saccharification of three exemplary strains. The results demonstrate the difficulty in utilizing the complex heteroglycans in Nostoc biomass, yet also highlight the potential for efficient biomass utilization.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2022)
Article
Biochemistry & Molecular Biology
Shingo Hata, Shoji Kishida, Risa Minesono, Tesshu Tamai
Summary: The rehydrated N. commune showed nitrogen-fixing activity under white light and in the presence of glucose, suggesting constitutive glucose utilization activity.
PLANT SIGNALING & BEHAVIOR
(2022)
Article
Plant Sciences
Cheng Zheng, Zili Yi, Liang Xiao, Guorong Sun, Meng Li, Shuai Xue, Xiaoying Peng, Meijuan Duan, Zhiyong Chen
Summary: This study investigated the performance of Miscanthus in saline-alkaline soil and found that high saline-alkaline soil significantly reduced plant growth and biomass quality. However, certain genotypes still exhibited good adaptability in saline-alkaline soil. These findings have important implications for the application of Miscanthus biomass in saline-alkaline soil.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Manlin Xu, Qiqi Sun, Qiangbo Liu, Guo He, Congpeng Wang, Kang He
Summary: Biochar has positive effects on soil fertility and plant growth, especially in saline alkali soil. The combination of biochar and fertilizer enhances soil fertility and reduces fertilizer leaching into deeper layers. Additionally, biochar application improves soil properties and enhances plant stress resistance.
Article
Environmental Sciences
Jing Liu, Li Ye, Chuanyong Jing
Summary: To ensure food security, seawater rice has been cultivated, but it may be sensitive to elevated arsenic levels near coastal regions. Through incubation of saline-alkaline paddy soil with natural irrigation river for three months, the mobility and transformation of arsenic were explored. The incubation results showed that solid-bound arsenic(V) was reduced to arsenic(III) within two weeks, leading to the dominant presence of methylated arsenic in porewater. The analysis of the most abundant arsenite methyltransferase gene (arsM) suggested its high contribution to arsenic methylation, potentially by salt-tolerant bacteria such as Chloroflexi and Actinobacteria. The accumulation of arsenic in rice grains was within a safe regulatory level.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Agronomy
Lipeng Wu, Yidong Wang, Shirong Zhang, Wenliang Wei, Yakov Kuzyakov, Xiaodong Ding
Summary: Combined mineral and organic fertilizers decreased Na+ content, increased macroaggregates due to broader microbial diversity, increased contents of labile organic carbon and Ca2+. This combination was found to be the best practice to increase microbial biomass and labile carbon fractions for aggregate formation in saline-alkaline soil.
Article
Biotechnology & Applied Microbiology
Xiao-Long Yuan, Xiang Gao, Wen Liu, Yang She, Tao Zheng, Hui-Dan Xue
Summary: This study successfully obtained desiccation-tolerant Nostoc flagelliforme liquid suspension culture through slow drying treatment, and investigated a series of biochemical, proteomic, and ultrastructural changes that occurred in cells during drying induction. The solid cultures derived from the cell suspension maintained 90% to 94% water content and nearly ninefold increased in fresh weight during the 16-day drying treatment. Biochemical analysis revealed significant increases in the biosynthesis of extracellular components, proteomic analysis identified potentially crucial proteins for desiccation tolerance, and ultrastructural observation showed structural changes in the exopolysaccharide matrix.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Biodiversity Conservation
Tongtong Xu, Minna Zhang, Shiwen Ding, Bai Liu, Qing Chang, Xuan Zhao, Ying Wang, Jianyong Wang, Ling Wang
Summary: The study found that grassland degradation not only damages SOC, but also SIC stocks in saline-alkaline grasslands. SIC is the main component of soil carbon in saline-alkaline grasslands, and its distribution changes significantly. Degradation resulted in SIC losses primarily in the intermediate soil layers (30-70 cm), while SOC losses were mainly in the topsoil (0-40 cm).
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Hui Li, Baojie Wang, Muji Siri, Cheng Liu, Changliang Feng, Xinqing Shao, Kesi Liu
Summary: This study investigated the effects of corn and oak sawdust biochar, both unmodified and modified with calcium, on saline alkali soil. The addition of unmodified biochar had no significant effect on soil salinity and alkalinity indicators, but the addition of calcium modified biochar reduced soluble cations and indicators. Modified woody biochar had the greatest effect, decreasing alkalinity by 70.02% and 89.25% with 2% and 4% addition, respectively. The results suggest that calcium modified biochar, especially modified woody biochar, could be a potential soil amendment for improving saline-alkali soil.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Liu Ying, Ma Maohua, Ding Zhi, Liu Bo, Jiang Ming, Lu Xianguo, Lou Yanjing
Summary: This study investigated inner saline-alkaline marsh ecosystems in Western Songnen Plain wetlands, China and found that deep flooding had a positive effect on specific leaf area (SLA), plant height and leaf nitrogen (N) content, while high soil salt content had a negative effect on leaf nitrogen and phosphorus (P) content, SLA and plant height. Plant height was identified as a key trait for understanding how ecosystem functioning responds to abiotic factors in saltmarsh plants.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Yantong Zhao, Guodong Wang, Meiling Zhao, Ming Wang, Zhenshan Xue, Bo Liu, Ming Jiang
Summary: The study found that natural wetlands have higher species richness and seed density compared to farmed fields. Saline-alkaline stress restricts seed germination and establishment of wetland species, negatively affecting the potential for seed germination and natural restoration.
ECOLOGICAL INDICATORS
(2021)
Article
Energy & Fuels
Jeeraporn Pekkoh, Sureeporn Lomakool, Jirayuth Chankham, Kritsana Duangjan, Theera Thurakit, Kittiya Phinyo, Khomsan Ruangrit, Yingmanee Tragoolpua, Chayakorn Pumas, Wasu Pathom-aree, Sirasit Srinuanpan
Summary: This study aimed to maximize the biomass productivity of cyanobacterium Nostoc sp. AARL C008 through high-throughput bioprocess optimization and utilize the biomass for multiproduct biorefinery. The study found that Nostoc polysaccharides had the potential to improve soil properties and promote plant growth, Nostoc phytochemicals exhibited antioxidant and anticancer activities, and Nostoc lipids could be used for biodiesel production. The multiproduct biorefining approach is of great significance for the zero-waste industrialization of cyanobacterial-based bioproducts.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
