scholarly journals Phylogenetic and characterization of salt-tolerant rhizobial strain nodulating faba bean plants

2013 ◽  
Vol 12 (27) ◽  
pp. 4324-4337 ◽  
Author(s):  
B Belal Elsayed ◽  
Hassan ◽  
M M ◽  
El Ramady ◽  
R H
Keyword(s):  
Faba Bean ◽  
Rhizobial Strain ◽  
Salt Tolerant ◽  
Bean Plants

Morphological, Biochemical and Molecular Characterization of Rhizobia of Faba Bean Plants Grown in North Nile Delta Egypt

2021 ◽  
Vol 24 (6) ◽  
pp. 672-679
Author(s):  
Doha M. Fathy ◽  
Ahmed S. Eldomiaty ◽  
Hassan I. Abd El- ◽  
El-Sayed I. Mahgoub ◽  
Abdallah A. Hassani
Keyword(s):  
Molecular Characterization ◽  
Faba Bean ◽  
Nile Delta ◽  
Bean Plants

scholarly journals SYMBIOTIC NITROGEN FIXATION OF FABA BEAN PLANTS INOCULATED WITH SALT-TOLERANT Rhizobium ISOLATES

2012 ◽  
Vol 3 (10) ◽  
pp. 411-423 ◽  
Author(s):  
Nagwa M. M. El-Khateeb ◽  
M. E. Shalaby ◽  
E. B. A. Belal ◽  
SH. M. A. El-Gremi
Keyword(s):  
Nitrogen Fixation ◽  
Faba Bean ◽  
Symbiotic Nitrogen Fixation ◽  
Salt Tolerant ◽  
Bean Plants

scholarly journals Characterization and molecular diversity of Iranian rhizobia isolated from faba bean

Genetika ◽  
2018 ◽  
Vol 50 (1) ◽  
pp. 231-242
Author(s):  
Maleki Hatami ◽  
Kiomars Rouhrazi ◽  
Gholam Khodakaramian ◽  
Naser Sabaghnia
Keyword(s):  
16S Rrna ◽  
Faba Bean ◽  
Pcr Primers ◽  
Cophenetic Correlation ◽  
Pcr Fingerprinting ◽  
Isolation And Characterization ◽  
Bean Plants ◽  
Cophenetic Correlation Coefficient ◽  
East Azerbaijan

The diversity and phylogeny of 30 rhizobia isolated from nodules of faba bean plants grown on 5 geographic regions located in the East Azerbaijan province of Iran were examined using rep-PCR fingerprinting, sequence analysis of 16S rRNA accompanied with nodC genes. Based on cluster analysis of rep-PCR fingerprints, faba bean rhizobia isolates were differentiated into five clusters (A to E) at 80% similarity level. The cophenetic correlation coefficient for the dendrogram obtained from the combined dataset of BOX and ERIC primers was 0.942. The percentage of polymorphic loci was 59.2% using the BOX-PCR primer and 67.3% using the ERIC-PCR primers. The data obtained by rep-PCR fingerprinting showed high apparent correlation between genetic diversity and geographical origin of the isolates. The phylogenetic analysis based on 16S rRNA and nodC sequences showed that representative isolates were closely related to R. leguminosarum bv. viciae and R. fabae. To the best of our knowledge, this is first report of isolation and characterization of R. fabae from Iran.

scholarly journals Enhanced Abiotic Stress Tolerance of Vicia faba L. Plants Heterologously Expressing the PR10a Gene from Potato

Plants ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 173
Author(s):  
Abeer F. Desouky ◽  
Ahmed H. Ahmed ◽  
Hartmut Stützel ◽  
Hans-Jörg Jacobsen ◽  
Yi-Chen Pao ◽  
...  
Keyword(s):  
Salt Stress ◽  
Abiotic Stress ◽  
Stress Tolerance ◽  
Vicia Faba ◽  
Faba Bean ◽  
Abiotic Stress Tolerance ◽  
Wild Type ◽  
Stress Injury ◽  
Bean Plants ◽  
Vicia Faba L

Pathogenesis-related (PR) proteins are known to play relevant roles in plant defense against biotic and abiotic stresses. In the present study, we characterize the response of transgenic faba bean (Vicia faba L.) plants encoding a PR10a gene from potato (Solanum tuberosum L.) to salinity and drought. The transgene was under the mannopine synthetase (pMAS) promoter. PR10a-overexpressing faba bean plants showed better growth than the wild-type plants after 14 days of drought stress and 30 days of salt stress under hydroponic growth conditions. After removing the stress, the PR10a-plants returned to a normal state, while the wild-type plants could not be restored. Most importantly, there was no phenotypic difference between transgenic and non-transgenic faba bean plants under well-watered conditions. Evaluation of physiological parameters during salt stress showed lower Na+-content in the leaves of the transgenic plants, which would reduce the toxic effect. In addition, PR10a-plants were able to maintain vegetative growth and experienced fewer photosystem changes under both stresses and a lower level of osmotic stress injury under salt stress compared to wild-type plants. Taken together, our findings suggest that the PR10a gene from potato plays an important role in abiotic stress tolerance, probably by activation of stress-related physiological processes.

scholarly journals Foliar-Applied Potassium Silicate Coupled with Plant Growth-Promoting Rhizobacteria Improves Growth, Physiology, Nutrient Uptake and Productivity of Faba Bean (Vicia faba L.) Irrigated with Saline Water in Salt-Affected Soil

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 894
Author(s):  
Emad M. Hafez ◽  
Hany S. Osman ◽  
Usama A. Abd El-Razek ◽  
Mohssen Elbagory ◽  
Alaa El-Dein Omara ◽  
...  
Keyword(s):  
Plant Growth ◽  
Fresh Water ◽  
Faba Bean ◽  
Saline Water ◽  
Plant Growth Promoting Rhizobacteria ◽  
Control Treatment ◽  
Combined Application ◽  
Bean Plants ◽  
Plant Growth Promoting ◽  
Growth Promoting

The continuity of traditional planting systems in the last few decades has encountered its most significant challenge in the harsh changes in the global climate, leading to frustration in the plant growth and productivity, especially in the arid and semi-arid regions cultivated with moderate or sensitive crops to abiotic stresses. Faba bean, like most legume crops, is considered a moderately sensitive crop to saline soil and/or saline water. In this connection, a field experiment was conducted during the successive winter seasons 2018/2019 and 2019/2020 in a salt-affected soil to explore the combined effects of plant growth-promoting rhizobacteria (PGPR) and potassium (K) silicate on maintaining the soil quality, performance, and productivity of faba bean plants irrigated with either fresh water or saline water. Our findings indicated that the coupled use of PGPR and K silicate under the saline water irrigation treatment had the capability to reduce the levels of exchangeable sodium percentage (ESP) in the soil and to promote the activity of some soil enzymes (urease and dehydrogenase), which recorded nearly non-significant differences compared with fresh water (control) treatment, leading to reinstating the soil quality. Consequently, under salinity stress, the combined application motivated the faba bean vegetative growth, e.g., root length and nodulation, which reinstated the K+/Na+ ions homeostasis, leading to the lessening or equalizing of the activity level of enzymatic antioxidants (CAT, POD, and SOD) compared with the controls of both saline water and fresh water treatments, respectively. Although the irrigation with saline water significantly increased the osmolytes concentration (free amino acids and proline) in faba bean plants compared with fresh water treatment, application of PGPR or K-silicate notably reduced the osmolyte levels below the control treatment, either under stress or non-stress conditions. On the contrary, the concentrations of soluble assimilates (total soluble proteins and total soluble sugars) recorded pronounced increases under tested treatments, which enriched the plant growth, the nutrients (N, P, and K) uptake and translocation to the sink organs, which lastly improved the yield attributes (number of pods plant−1, number of seeds pod−1, 100-seed weight). It was concluded that the combined application of PGPR and K-silicate is considered a profitable strategy that is able to alleviate the harmful impact of salt stress alongside increasing plant growth and productivity.

scholarly journals Detection, Identification, and Molecular Characterization of the 16SrII-D Phytoplasmas Infecting Vegetable and Field Crops in Oman

Plant Disease ◽  
2018 ◽  
Vol 102 (3) ◽  
pp. 576-588 ◽  
Author(s):  
Ali M. Al-Subhi ◽  
Saskia A. Hogenhout ◽  
Rashid A. Al-Yahyai ◽  
Abdullah M. Al-Sadi
Keyword(s):  
Molecular Characterization ◽  
Ribosomal Rna ◽  
Faba Bean ◽  
Sequence Variation ◽  
Field Pea ◽  
16S Ribosomal Rna ◽  
Diverse Range ◽  
Field Crops ◽  
Phytoplasma Infection

Typical symptoms of phytoplasma infection were observed on 11 important crops in Oman that included alfalfa, sesame, chickpea, eggplant, tomato, spinach, rocket, carrot, squash, field pea, and faba bean. To identify the phytoplasmas in these crops, samples from infected and asymptomatic plants were collected, followed by amplifying and sequencing of the 16S ribosomal RNA, secA, tuf, imp, and SAP11 genes. We found that these sequences share >99% similarity with the peanut witches’ broom subgroup (16SrII-D). Whereas some sequence variation was found in the five genes among 11 phytoplasma isolates of different crops, all sequences grouped into one clade along with those of other phytoplasmas belonging to the 16SrII-D group. Thus, 16SrII-D phytoplasmas infect a diverse range of crops in Oman. Phytoplasmas in this group have not been reported to occur in carrot, spinach, rocket, and field pea previously. Within Oman, this is the first report of the presence of 16SrII-D phytoplasmas in tomato, spinach, rocket, carrot, squash, field pea, and faba bean. Sequences of the five genes enabled for better distinction of the 16SrII-D phytoplasmas that occur in Oman.

Sign in / Sign up

Export Citation Format

Share Document