干旱区生态环境知识资源中心(Arid): Towards large scale biocrust restoration: Producing an efficient and low-cost inoculum of N-fixing cyanobacteria

Arid

DOI	10.1016/j.scitotenv.2022.157704
	Towards large scale biocrust restoration: Producing an efficient and low-cost inoculum of N-fixing cyanobacteria
	Roncero-Ramos, Beatriz; Roman, Jose Raul; Acien, Gabriel; Canton, Yolanda
通讯作者	Roncero-Ramos, B
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2022
卷号	848
英文摘要	Dryland soil degradation is increasing due to global change and traditional restoration methods are not successful due to water scarcity. Thus, an alternative technology based on inoculating biocrust-forming cyanobacteria on degraded soils has emerged. Biocrusts are communities of mosses, lichens, cyanobacteria or fungi that colonize soil surface forming a stable and fertile layer. Previous studies have shown the benefits of inoculating cyanobacteria to restore soils at a small scale. However, to face field restoration projects, it is necessary to produce high quantities of biomass at an affordable cost. In this work, we analyze if the previously tested cyanobacteria Scytonema hyalinum, Tolypothrix distorta (heterocystous strains) and Trichocoleus desertorum (a bundle-forming one) can be produced with agricultural fertilizers. Different culture media were used: two containing pure chemicals (BG11 and BG110, this N-free medium was used just for heterocystous strains) and two containing fertilizers (BG11-F and MM-F). The performance of the cul-tures was monitored by measuring the biomass concentration and photosynthetic stress. Afterwards, we analyzed their capacity to induce biocrusts and improve soil properties by inoculating the biomass on a mine substrate indoors and measuring, three months later, the albedo, chlorophyll a and organic carbon content. Results show that the bundle -forming cyanobacterium was unable to grow in the media tested, whereas both heterocystous cyanobacteria grew in all of them and induced the formation of biocrusts improving the organic carbon substrate content. The best results for S. hyalinum were found using the MM-F medium, and for T. distorta using a medium containing pure chemicals (BG11). However, results were also positive when using a medium containing fertilizers (BG11-F). Thus, agricultural fertilizers can be used to undertake the production of heterocystous cyanobacteria for large scale restoration in drylands. On the other hand, more research is needed to find sustainable techniques to produce biomass of bundle -forming cyanobacteria.
英文关键词	Semiarid Agricultural fertilizers Soil Cyanobacteria Drylands Mine rehabilitation
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000891441600006
WOS关键词	BIOLOGICAL SOIL CRUSTS ; POLYSACCHARIDIC MATRIX ; ALGAL CRUSTS ; DESERT ; INOCULATION ; SURFACE ; WATER ; DESERTIFICATION ; FIELDS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394402
推荐引用方式 GB/T 7714	Roncero-Ramos, Beatriz,Roman, Jose Raul,Acien, Gabriel,et al. Towards large scale biocrust restoration: Producing an efficient and low-cost inoculum of N-fixing cyanobacteria[J],2022,848.
APA	Roncero-Ramos, Beatriz,Roman, Jose Raul,Acien, Gabriel,&Canton, Yolanda.(2022).Towards large scale biocrust restoration: Producing an efficient and low-cost inoculum of N-fixing cyanobacteria.SCIENCE OF THE TOTAL ENVIRONMENT,848.
MLA	Roncero-Ramos, Beatriz,et al."Towards large scale biocrust restoration: Producing an efficient and low-cost inoculum of N-fixing cyanobacteria".SCIENCE OF THE TOTAL ENVIRONMENT 848(2022).