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112615

Isolation and identification of rhizobial strains from faba bean nodules.

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Last updated: 22 Jan 2023

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Abstract

To maximize of faba bean production in the new reclaimed land in Egypt need to isolate and select of effective rhizobial strains. Thirty rhizobial isolates were collected from the healthy root nodule of faba bean (Vicia faba) grow in different geographic locations and soil properties in Egypt. Morphological studies, nodulation, salinity tolerance, as well as 16S rDNA partial sequence were used for identification and characterization the obtained rhizobial isolates. All tested isolates were short rod, Gram negative and most of them were opaque and high viscosity. According to nodulation, the promising isolates were determined. The most promising isolates tolerated the high NaCl concentration up to 3.5 and 4%. Moreover the two isolates are 2 is and Nob3 had a positive growth at 4.5% NaCl concentration (107Rhizobial cell per ml.). Data showed that both Is 2 and Nob 3 isolates were the best isolates where they gave the highest number of nodules and growth characteristics of the two faba bean varieties. The 16S rDNA sequencing results revealed that the nearest bacterial species to our isolate M4 was Rhizobium sp. (KF111868) 94% identity while, M6 isolate was 99% identical to Rhizobium rubi (BBJU0100046). The sequence was submitted to NCBI website with accession number Gen Bank: KX639721 and KX639722 respectively.

DOI

10.21608/assjm.2016.112615

Keywords

isolation, Rhizobia, Faba bean, nodules

Volume

54

Article Issue

3

Related Issue

15777

Issue Date

2016-09-01

Receive Date

2020-09-15

Publish Date

2016-09-01

Page Start

591

Page End

600

Print ISSN

1110-0419

Link

https://assjm.journals.ekb.eg/article_112615.html

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https://assjm.journals.ekb.eg/service?article_code=112615

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4

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Original Article

Type Code

841

Publication Type

Journal

Publication Title

Annals of Agricultural Science, Moshtohor

Publication Link

https://assjm.journals.ekb.eg/

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Article

Created At

22 Jan 2023