An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal

doi:10.3390/molecules26113390

IOCAS-IR > 实验海洋生物学重点实验室

	An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal
	Zhang, Hui1,2,3 ; Song, Lin1 ; Chen, Xiaolin 2,4; Li, Pengcheng2,4
	2021-06-01
发表期刊	MOLECULES
卷号	26 期号:11 页码:13
通讯作者	Chen, Xiaolin([email protected]) ; Li, Pengcheng([email protected])
摘要	Excessive use of nitrogen fertilizer in intensively managed agriculture has resulted in abundant accumulation of nitrate in soil, which limits agriculture sustainability. How to reduce nitrate content is the key to alleviate secondary soil salinization. However, the microorganisms used in soil remediation cause some problems such as weak efficiency and short survival time. In this study, seaweed polysaccharides were used as stimulant to promote the rapid growth and safer nitrate removal of denitrifying bacteria. Firstly, the growth rate and NO3--N removal capacity of three kinds of denitrifying bacteria, Bacillus subtilis (BS), Pseudomonas stutzeri (PS) and Pseudomonas putida (PP), were compared. The results showed that Bacillus subtilis (BS) had a faster growth rate and stronger nitrate removal ability. We then studied the effects of Enteromorpha linza polysaccharides (EP), carrageenan (CA), and sodium alginate (AL) on growth and denitrification performance of Bacillus subtilis (BS). The results showed that seaweed polysaccharides obviously promoted the growth of Bacillus subtilis (BS), and accelerated the reduction of NO3--N. More importantly, the increased NH4+-N content could avoid excessive loss of nitrogen, and less NO2--N accumulation could avoid toxic effects on plants. This new strategy of using denitrifying bacteria for safely remediating secondary soil salinization has a great significance.
关键词	seaweed polysaccharides denitrifying bacteria nitrate removal growth promotion
DOI	10.3390/molecules26113390
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2018YFD0901104]; Shandong Province Key Research and Development Project[2018GHY115008]; Natural Science Foundation of Shandong Province[ZR201702170401]
WOS研究方向	Biochemistry & Molecular Biology ; Chemistry
WOS类目	Biochemistry & Molecular Biology ; Chemistry, Multidisciplinary
WOS记录号	WOS:000660438400001
出版者	MDPI
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/176859
专题	实验海洋生物学重点实验室
通讯作者	Chen, Xiaolin; Li, Pengcheng
作者单位	1.Qingdao Univ Sci & Technol, Coll Marine Sci & Biol Engn, Qingdao 266042, Peoples R China 2.Chinese Acad Sci, CAS & Shandong Prov Key Lab Expt Marine Biol, Ctr Ocean Mega Sci, Inst Oceanol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Drugs & Bioprod, 1 Wenhai Rd, Qingdao 266237, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hui,Song, Lin,Chen, Xiaolin,et al. An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal[J]. MOLECULES,2021,26(11):13.
APA	Zhang, Hui,Song, Lin,Chen, Xiaolin,&Li, Pengcheng.(2021).An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal.MOLECULES,26(11),13.
MLA	Zhang, Hui,et al."An Exploration of Seaweed Polysaccharides Stimulating Denitrifying Bacteria for Safer Nitrate Removal".MOLECULES 26.11(2021):13.

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