干旱区生态环境知识资源中心(Arid): Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process

Arid

DOI	10.1590/1678-992X-2023-0101
	Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process
	Pinheiro, Jose Israel; Mendes Filho, Paulo Furtado; Garcia, Kaio Graculo Vieira; Moreira, Jarlane Viana; da Silva, Danilo Ferreira; Araujo, Ademir Sergio Ferreira de; Verma, Jay Prakash; Melo, Vania Maria Maciel; Pereira, Arthur Prudencio de Araujo
通讯作者	Pereira, APD
来源期刊	SCIENTIA AGRICOLA
ISSN	1678-992X
出版年	2024
卷号	81
英文摘要	Biological soil crusts (BSC) are commonly found in soils in the drylands regions, which can influence stabilization, water retention, nutrient cycling (particularly carbon (C) and nitrogen (N) dynamics), and several ecological processes. However, the composition of BSC in Brazilian soils undergoing the desertification process remains poorly understood. This study aimed to characterize the bacterial community in BSC formed in a Brazilian semiarid region under the desertification process. Thus, a highly desertified region was selected from which 34 BSC samples were collected. The total DNA of the BSC was extracted from 0.5 g samples, and the bacterial community was sequenced by a Next Generation Sequencing (NGS) platform (Miseq - Illumina (R)) using universal primers (515F and 806R). Bioinformatic analysis was carried out in QIIME (v.1.9), and the Operational Taxonomic Units (OTU) table was constructed following the Sumaclust methodology. The pH of BSC, C, N, and phosphorus contents was analyzed. Our study identified a diverse bacterial community in the BSCs. Cyanobacteria, Chloroflexi, and Proteobacteria phyla presented the greatest relative abundance (%) across the samples. Cyanobacteria were dominated by the orders Nostocales and Leptolyngbyales. The prediction of the putative functions found that mostf OTU were related to phototrophy, photosynthetic cyanobacteria, and photoautotrophy. The study found correlations between bacterial phyla and BSC properties, with Cyanobacteria positively related to C. Chloroflexi, Armatimonadetes, and WPS-2 were negatively correlated with C and N contents. These results suggest the critical roles bacteria communities play in BSCs from the Caatinga biome and highlight the potential impact of environmental factors on their diversity and functions. Keywords: Caatinga, cyanobacteria, drylands, microbial ecology, biofilms
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001228478700001
WOS关键词	DIVERSITY ; DESERT ; CYANOBACTERIA
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405541
推荐引用方式 GB/T 7714	Pinheiro, Jose Israel,Mendes Filho, Paulo Furtado,Garcia, Kaio Graculo Vieira,et al. Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process[J],2024,81.
APA	Pinheiro, Jose Israel.,Mendes Filho, Paulo Furtado.,Garcia, Kaio Graculo Vieira.,Moreira, Jarlane Viana.,da Silva, Danilo Ferreira.,...&Pereira, Arthur Prudencio de Araujo.(2024).Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process.SCIENTIA AGRICOLA,81.
MLA	Pinheiro, Jose Israel,et al."Bacterial community in biological soil crusts from a Brazilian semiarid region under desertification process".SCIENTIA AGRICOLA 81(2024).