干旱区生态环境知识资源中心(Arid): Actinobacteria from Extreme Niches in Morocco and Their Plant Growth-Promoting Potentials

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DOI	10.3390/d11080139
	Actinobacteria from Extreme Niches in Morocco and Their Plant Growth-Promoting Potentials
	Nafis, Ahmed 1,2; Raklami, Anas 1; Bechtaoui, Noura 1; El Khalloufi, Fatima 3; El Alaoui, Abdelkhalek 1; Glick, Bernard R.4; Hafidi, Mohamed 2,5; Kouisni, Lamfeddal 2; Ouhdouch, Yedir 1,2; Hassani, Lahcen 1
通讯作者	Nafis, Ahmed
来源期刊	DIVERSITY-BASEL
EISSN	1424-2818
出版年	2019
卷号	11 期号:8
英文摘要	The objectives of this study were to assess actinobacterial diversity in five Moroccan extreme habitats and to evaluate their plant growth-promoting (PGP) activities. The soil samples were collected from different locations, including soils contaminated with heavy metals, from a high altitude site, from the desert, and from a marine environment. In total, 23 actinobacteria were isolated, 8 from Merzouga sand soil; 5 from Cannabis sativa rhizospheric soil; 5 from Toubkal mountain; 4 from a Draa sfar mining site; and 1 from marine soil. Based on their genotypic classification using 16S rRNA gene sequences, 19 of all belonged to the genus Streptomyces (82%) while the rest are the members of the genera Nocardioides (4.5%), Saccharomonospora (4.5%), Actinomadura (4.5%), and Prauserella (4.5%). Isolates Streptomyces sp. TNC-1 and Streptomyces sp. MNC-1 showed the highest level of phosphorus solubilization activity with 12.39 and 8.56 mg/mL, respectively. All 23 isolates were able to solubilize potassium, and 91% of them could grow under nitrogen-free conditions. The ability of the isolated actinobacteria to form indole-3-acetic acid (IAA) ranged from 6.70 to 75.54 mu g/mL with Streptomyces sp. MNC-1 being the best IAA producer. In addition, all of the actinobacteria could produce siderophores, with Saccharomonospora sp. LNS-1 synthesizing the greatest amount (138.92 mu g/mL). Principal coordinate analysis revealed that Streptomyces spp. MNC-1, MNT-1, MNB-2, and KNC-5; Saccharomonospora sp. LNS-1; and Nocardioides sp. KNC-3 each showed a variety of high-level plant growth-promoting activities. The extreme environments in Morocco are rich with bioactive actinobacteria that possess a variety of plant growth-promoting potentials that can further benefit green and sustainable agriculture.
英文关键词	actinobacteria extremophile plant growth-promoting bacteria
类型	Article
语种	英语
国家	Morocco ; Canada
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000482961700013
WOS关键词	POTASSIUM SOLUBILIZING BACTERIA ; SP NOV. ; PHOSPHATE SOLUBILIZATION ; MICROBIAL DIVERSITY ; SAHARAN SOILS ; STREPTOMYCES ; IDENTIFICATION ; SIDEROPHORE ; STRAIN ; RHIZOSPHERE
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215062
作者单位	1.Cadi Ayyad Univ, Lab Biol & Biotechnol Microorganisms, Fac Sci Semlalia, Marrakech 40000, Morocco; 2.Univ Mohammed IV Polytech UM6P, Agrobiosci & Fertilizers Program, Benguerir 43150, Morocco; 3.Univ Sultan Moulay Slimane, Polydisciplinary Fac Khouribga, BP 145, Khouribga 25000, Morocco; 4.Univ Waterloo, Dept Biol, 200 Univ Ave South, Waterloo, ON N2L 3G1, Canada; 5.Cadi Ayyad Univ, L2E, Fac Sci Semlalia, Marrakech 40000, Morocco
推荐引用方式 GB/T 7714	Nafis, Ahmed,Raklami, Anas,Bechtaoui, Noura,et al. Actinobacteria from Extreme Niches in Morocco and Their Plant Growth-Promoting Potentials[J],2019,11(8).
APA	Nafis, Ahmed.,Raklami, Anas.,Bechtaoui, Noura.,El Khalloufi, Fatima.,El Alaoui, Abdelkhalek.,...&Hassani, Lahcen.(2019).Actinobacteria from Extreme Niches in Morocco and Their Plant Growth-Promoting Potentials.DIVERSITY-BASEL,11(8).
MLA	Nafis, Ahmed,et al."Actinobacteria from Extreme Niches in Morocco and Their Plant Growth-Promoting Potentials".DIVERSITY-BASEL 11.8(2019).