干旱区生态环境知识资源中心(Arid): Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt

Arid

DOI	10.1016/j.jare.2011.11.003
	Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt
	Hanna, Amira L.; Youssef, Hanan H.; Amer, Wafaa M.; Monib, Mohammed; Fayez, Mohammed; Hegazi, Nabil A.
通讯作者	Hegazi, NA
来源期刊	JOURNAL OF ADVANCED RESEARCH
ISSN	2090-1232
EISSN	2090-1224
出版年	2013
卷号	4 期号:1 页码:13-26
英文摘要	North Sinai deserts were surveyed for the predominant plant cover and for the culturable bacteria nesting their roots and shoots. Among 43 plant species reported, 13 are perennial (e.g. Fagonia spp., Pancratium spp.) and 30 annuals (e.g. Bromus spp., Erodium spp.). Eleven species possessed rhizo-sheath, e. g. Cyperus capitatus, Panicum turgidum and Trisetaria koelerioides. Microbiological analyses demonstrated: the great diversity and richness of associated culturable bacteria, in particular nitrogen-fixing bacteria (diazotrophs); the majority of bacterial residents were of true and/ or putative diazotrophic nature; the bacterial populations followed an increasing density gradient towards the root surfaces; sizeable populations were able to reside inside the root (endorhizosphere) and shoot (endophyllosphere) tissues. Three hundred bacterial isolates were secured from studied spheres. The majority of nitrogen-fixing bacilli isolates belonged to Bacillus megaterium, Bacillus pumilus, Bacillus polymexa, Bacillus macerans, Bacillus circulans and Bacillus licheniformis. The family Enterobacteriaceae represented by Enterobacter agglomerans, Enterobacter sackazakii, Enterobacter cloacae, Serratia adorifera, Serratia liquefaciens and Klebsiella oxytoca. The non-Enterobacteriaceae population was rich in Pantoae spp., Agrobacterium rdiobacter, Pseudomonas vesicularis, Pseudomonas putida, Stenotrophomonas maltophilia, Ochrobactrum anthropi, Sphingomonas paucimobilis and Chrysemonas luteola. Gluconacetobacter diazotrophicus were reported inside root and shoot tissues of a number of tested plants. The dense bacterial populations reported speak well to the very possible significant role played by the endophytic bacterial populations in the survival, in respect of nutrition and health, of existing plants. Such groups of diazotrophs are good candidates, as bio-preparates, to support the growth of future field crops grown in deserts of north Sinai and irrigated by the water of El-Salam canal. (C) 2011 Cairo University. Production and hosting by Elsevier B. V. All rights reserved.
英文关键词	North Sinai Desert ecosystems Xerophytes Culturable bacteria Rhizospheric microorganisms (RMOs) Diazotrophs Rhizosheath
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000215326500002
WOS关键词	ACETOBACTER-DIAZOTROPHICUS ; SUGAR-CANE ; GLUCONACETOBACTER-DIAZOTROPHICUS ; HOST-PLANT ; SP-NOV ; IDENTIFICATION ; ENDOPHYTES ; ORGANISMS ; INDEXES ; GROWTH
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/330323
作者单位	[Hanna, Amira L.; Youssef, Hanan H.; Monib, Mohammed; Fayez, Mohammed; Hegazi, Nabil A.] Cairo Univ, Dept Microbiol, Fac Agr, Giza, Egypt; [Amer, Wafaa M.] Cairo Univ, Dept Bot, Fac Sci, Giza, Egypt
推荐引用方式 GB/T 7714	Hanna, Amira L.,Youssef, Hanan H.,Amer, Wafaa M.,et al. Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt[J],2013,4(1):13-26.
APA	Hanna, Amira L.,Youssef, Hanan H.,Amer, Wafaa M.,Monib, Mohammed,Fayez, Mohammed,&Hegazi, Nabil A..(2013).Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt.JOURNAL OF ADVANCED RESEARCH,4(1),13-26.
MLA	Hanna, Amira L.,et al."Diversity of bacteria nesting the plant cover of north Sinai deserts, Egypt".JOURNAL OF ADVANCED RESEARCH 4.1(2013):13-26.