Results 91 to 100 of about 14,969 (264)

Indole Derivatives Biosynthesis in Bifidobacterium longum subsp. infantis and the Tryptophan Substrate Availability

open access: yesMicrobial Biotechnology, Volume 18, Issue 6, June 2025.
Bifidobacterium longum subsp. infantis converts tryptophan into indole‐3‐lactate, indole‐3‐acetate and indole‐3‐carboxaldehyde. Production is substrate‐dependent, with higher tryptophan levels enhancing yields. This study reveals metabolic modulation in nutrient‐rich and resting states, emphasising B.
Shi‐Min Zhang   +3 more
wiley   +1 more source

Evaluation of the Efficacy of Two New Biotechnological-Based Freeze-Dried Fertilizers for Sustainable Fe Deficiency Correction of Soybean Plants Grown in Calcareous Soils

open access: yesFrontiers in Plant Science, 2019
Currently, fertilization with synthetic chelates is the most effective agricultural practice to prevent iron (Fe) deficiencies in crops, especially in calcareous soils. Because these compounds are not biodegradable, they are persistent in the environment,
Carlos M. H. Ferreira   +7 more
doaj   +1 more source

Вплив лектину картоплі на ростову активність діазотрофів [PDF]

open access: yes, 2007
Наведено результати досліджень впливу лектину картоплі на ростову активність бактерій родів Azotobacter і Azospirillum. Вивчено залежність росту мікроорганізмів від його вмісту в живильному середовищі в діапазоні концентрацій 0,2–20 мкг/мл.
Жеребор, Т.А.   +2 more
core  

Elucidating the Mechanism of Temporal Adaptation to Hydrogen Peroxide‐Induced Oxidative Stress in Corynebacterium glutamicum

open access: yesMicrobial Biotechnology, Volume 18, Issue 6, June 2025.
In this study, RNA‐seq was employed to investigate the temporal transcriptional response of C. glutamicum ATCC 13032 to external H2O2 at 720 mM (2.45% w/w). The results reveal significant changes in gene expression across multiple pathways, including peroxide scavenging, central metabolism, sulphur and iron metabolism, amino acid biosynthesis, and DNA ...
Chang Yu   +8 more
wiley   +1 more source

Characterization and effect of Azotobacter, Azospirillum and Pseudomonas associated with Ipomoea Batatas of Colombian Caribbean

open access: yesRevista Colombiana de Biotecnología, 2017
The use of plant growth promoting Rhizobacteria (PGPR) is an alternative to replace chemical fertilizers for the cultivation of agricultural crops. The aim of this research was to search, selection and characterization of PGPR from the genus Azotobacter,
Jazmín Vanessa Pérez-Pazos   +1 more
doaj   +1 more source

Genotypic Characterization of Azotobacteria Isolated from Argentinean Soils and Plant-Growth-Promoting Traits of Selected Strains with Prospects for Biofertilizer Production [PDF]

open access: yes, 2013
The genetic diversity among 31 putative Azotobacter isolates obtained from agricultural and non-agricultural soils was assessed using rep-PCR genomic fingerprinting, and identified to species level by ARDRA and partial 16S rRNA gene sequence analysis ...
Cassan, Fabricio Dario   +5 more
core   +4 more sources

Synthesis, function, and genetic variation of sorgoleone, the major biological nitrification inhibitor in sorghum

open access: yesCrop Science, Volume 65, Issue 3, May/June 2025.
Abstract Sorghum is the third most important food crop, grown on nearly 40 million ha globally, and is known for its resilience under unfavorable conditions. Sorghum is reported to have a strong biological nitrification inhibition (BNI) capacity in root systems, a plant function that suppresses soil nitrifier activity, which in turn prevents the ...
Sakiko Okumoto   +10 more
wiley   +1 more source

Assessment of free-living nitrogen fixing microorganisms for commercial nitrogen fixation [PDF]

open access: yes
Ammonia production by Klebsiella pneumoniae is not economical with present strains and improving nitrogen fixation to its theoretical limits in this organism is not sufficient to achieve economic viability. Because the value of both the hydrogen produced
Stokes, B. O., Wallace, C. J.
core   +1 more source

Competitiveness and communication for effective inoculation byRhizobium, Bradyrhizobium and vesicular-arbuscular mycorrhiza fungi [PDF]

open access: yes, 1994
After a short summary on the ecology and rhizosphere biology of symbiotic bacteria and vesicular-arbuscular (VA) mycorrhiza fungi and their application as microbial inocula, results on competitiveness and communication are summarized. Stress factors such
A. A. T. Vargas   +55 more
core   +1 more source

Analysis of carbohydrates and glycoconjugates by matrix‐assisted laser desorption/ionization mass spectrometry: An update for 2021–2022

open access: yesMass Spectrometry Reviews, Volume 44, Issue 3, Page 213-453, May/June 2025.
Abstract The use of matrix‐assisted laser desorption/ionization (MALDI) mass spectrometry for the analysis of carbohydrates and glycoconjugates is a well‐established technique and this review is the 12th update of the original article published in 1999 and brings coverage of the literature to the end of 2022.
David J. Harvey
wiley   +1 more source

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