A5045052154- Plant-Microbe Interactions and Immunity
- Legume Nitrogen Fixing Symbiosis
- Genomics and Phylogenetic Studies
- Plant Pathogens and Fungal Diseases
- Plant Pathogenic Bacteria Studies
- Cassava research and cyanide
- Microbial Community Ecology and Physiology
- Nematode management and characterization studies
- Plant Parasitism and Resistance
- Plant nutrient uptake and metabolism
- Plant tissue culture and regeneration
- Cardiac Ischemia and Reperfusion
- Coastal wetland ecosystem dynamics
- Mycorrhizal Fungi and Plant Interactions
- Biofuel production and bioconversion
- Plant Stress Responses and Tolerance
- Fungal Plant Pathogen Control
- Plant Disease Management Techniques
- Enterobacteriaceae and Cronobacter Research
- Botanical Research and Chemistry
- Agronomic Practices and Intercropping Systems
- Plant Pathogens and Resistance
- Microbial Metabolic Engineering and Bioproduction
- Plant Molecular Biology Research
- Soil Carbon and Nitrogen Dynamics
King Abdullah University of Science and Technology
2016-2025
Agricultural Genetic Engineering Research Institute
2018-2023
Agricultural Research Center
2019-2020
King Abdulaziz City for Science and Technology
2018
University of Geneva
2005-2015
Laboratoire des Interactions Plantes Micro-Organismes
2007-2012
Centre National de la Recherche Scientifique
2007-2012
Advocate Illinois Masonic Medical Center
2008-2012
Institute of Cardiology
2010
Sun Yat-sen University
2007
We report the first complete genome sequence of a β-proteobacterial nitrogen-fixing symbiont legumes, Cupriavidus taiwanensis LMG19424. The consists two chromosomes size 3.42 Mb and 2.50 Mb, large symbiotic plasmid 0.56 Mb. C. displays an unexpected high similarity with saprophytic bacterium eutrophus H16, despite being 0.94 smaller. Both organisms harbor regions synteny interspersed by specific regions. In contrast, species host highly divergent plasmids, consequence that is symbiotically...
The utilization of symbiosis with beneficial microorganisms provides a strategy to alleviate salt stress that reduces existing gaps in crops production. root endophytic fungus Piriformospora indica has shown improve plant growth diverse species under biotic stress, while limited reports have discussed the interaction P. tomato stress. In this study, impact on exposed 200 mM NaCl for one month soil-free culture was examined. Growth performance, marker osmolytes, antioxidant enzymes and...
Several plant species require microbial associations for survival under different biotic and abiotic stresses. In this study, we show that Enterobacter sp. SA187, a desert endophytic bacterium, enhances yield of the crop alfalfa field conditions as well growth model Arabidopsis thaliana in vitro, revealing high potential SA187 biological solution improving production. Studying interaction with Arabidopsis, uncovered number mechanisms related to beneficial association plants. colonizes both...
Abstract Global warming has become a critical challenge to food security, causing severe yield losses of major crops worldwide. Conventional and transgenic breeding strategies enhance plant thermotolerance are laborious expensive. Therefore, the use beneficial microbes could be an alternative approach. Here, we report that root endophyte Enterobacter sp. SA187 induces in wheat laboratory as well open‐field agriculture. To unravel molecular mechanisms, used Arabidopsis thaliana model plant....
Enterobacter sp. SA187 is an endophytic bacterium that has been isolated from root nodules of the indigenous desert plant Indigofera argentea. could survive in rhizosphere as well association with different species, and was able to provide abiotic stress tolerance Arabidopsis thaliana. The genome sequence obtained by using Pacific BioScience (PacBio) single-molecule sequencing technology, average coverage 275X. consists one single 4,429,597 bp chromosome, 56% GC content 4,347 predicted...
Deserts, such as those found in Saudi Arabia, are one of the most hostile places for plant growth. However, desert plants able to impact their surrounding microbial community and select beneficial microbes that promote growth under these extreme conditions. In this study, we examined soil, rhizosphere endosphere bacterial communities four native Tribulus terrestris, Zygophyllum simplex, Panicum turgidum Euphorbia granulata from Southwest (Jizan region), two which were also Midwest (Al Wahbah...
Abstract Plant growth-promoting bacteria (PGPB) are known to increase plant tolerance several abiotic stresses, specifically those from dry and salty environments. In this study, we examined the endophyte bacterial community of five species growing in Thar desert Pakistan. Among a total 368 culturable isolates, 58 Bacillus strains were identified which 16 most divergent characterized for salt heat stress resilience as well antimicrobial (PGP) activities. When tested on non-host Arabidopsis...
Significance Although plant growth–promoting bacteria (PGPB) enhance the performance of plants, only a few mechanisms have been identified so far. We show that sulfur metabolisms in both PGPB Enterobacter sp. SA187 and Arabidopsis plants play key role salt stress tolerance. Salt induces starvation response is attenuated by SA187. metabolic mutants are hypersensitive to but can be rescued Most metabolism occurs chloroplasts linked stress-induced accumulation reactive oxygen species suppressed...
Rhizobium sp. NGR234 nodulates many plants, some of which react to proteins secreted via a type three secretion system (T3SS) in positive- (Flemingia congesta, Tephrosia vogelii) or negative- (Crotalaria juncea, Pachyrhizus tuberosus) manner. T3SSs are devices that Gram-negative bacteria use inject effector into the cytoplasm eukaryotic cells. The only two rhizobial T3SS characterized date NopL and NopP NGR234. can be phosphorylated by plant kinases we show this true for as well. Mutation...
Summary A type III protein secretion system (T3SS) is an important host range determinant for the infection of legumes by Rhizobium sp. NGR234. Although a functional T3SS can have either beneficial or detrimental effects on nodule formation, only rhizobial‐specific positively acting effector proteins, NopL and NopP, been characterized. NGR234 possesses three open reading frames potentially encoding homologues proteins from pathogenic bacteria. NopJ, NopM NopT are secreted All negative...
Salinity stress is a major challenge to agricultural productivity and global food security in light of dramatic increase human population climate change. Plant growth promoting bacteria can be used as an additional solution traditional crop breeding genetic engineering. In the present work, induction plant salt tolerance by desert endophyte Cronobacter sp. JZ38 was examined on model Arabidopsis thaliana using different inoculation methods. promoted under salinity via contact emission...
Introduction Alternaria solani is a challenging pathogen in the tomato crop globally. Chemical control rapid approach, but emerging fungicide resistance has become severe threat. The present study investigates use of culture filtrates (CFs) three species Trichoderma spp. to this disease. Methods Highly virulent A. strain and fungal strains viz., T. harzianum (Accession No: MW590687), atroviride MW590689) longibrachiatum MW590688) previously isolated by authors were used study. efficacy...
Fonio (Digitaria exilis), an orphan millet crop, is the oldest indigenous crop in West Africa. Although yield low due to pre-domestication characteristics, quick maturation time, drought tolerance, and ability thrive on poor soils make fonio a climate-smart crop. Being holobionts, plants evolve close interaction with microbial partners, which crucial for plant phenology fitness. As seeds are bottleneck of vertically transmitting microbiota, we proposed unravel seed microbiome...
Lake Cadagno is characterized by a compact chemocline that harbors high concentrations of various phototrophic sulfur bacteria. Four strains representing the numerically most abundant populations in were tested dialysis bags situ for their ability to fix CO₂. The purple bacterium Candidatus 'Thiodictyon syntrophicum' strain Cad16(T) had highest CO₂ assimilation rate light four and even dark. population represented was estimated be up 25% total primary production chemocline. Pure cultures...
This study focused on rhizobacteria with a holistic vision of promoting sustainable crop production in arid regions Saudi Arabia. The isolated 17 from tightly root-adhering soil various plants at Hada Al-sham Arabia, then characterized for plant growth (PGP) traits. All the rhizobacterial isolates were confirmed as PGPR by classical biochemical tests. strains identified using 16S rDNA gene sequence analyses. According to sequencing, classified into three different genera: Bacillus,...
Rhizobia form a disparate collection of soil bacteria capable reducing atmospheric nitrogen in symbiosis with legumes. The study rhizobial populations nature involves the large numbers nodules found on roots or stems legumes, and subsequent typing nodule bacteria. To avoid time-consuming steps isolating cultivating prior to genotyping, protocol strain identification based comparison MALDI-TOF MS spectra was established. In this procedure, plant were considered as natural bioreactors that...