Results 31 to 40 of about 2,208 (183)

An enzyme‐centric approach for constructing an amperometric l‐malate biosensor with a long and programmable linear range

open access: yesProtein Science, Volume 32, Issue 9, September 2023., 2023
Abstract l‐Malate is a key flavor enhancer and acidulant in the food and beverage industry, particularly winemaking. Enzyme‐based amperometric biosensors offer convenience for monitoring its concentration. However, only a small number of off‐the‐shelf malate‐oxidizing enzymes have been used in previous devices. These typically have linear ranges poorly
Christopher J. Matthews   +1 more
wiley   +1 more source

Effects of Azorhizobium caulinodans and Piriformospora indica Co-Inoculation on Growth and Fruit Quality of Tomato (Solanum lycopersicum L.) under Salt Stress

open access: yesHorticulturae, 2022
Salt stress is a worldwide environmental signal, reducing the growth and yield of crops. To improve crop tolerance to salt, several beneficial microbes are utilized.
Zhiwen Xu   +3 more
doaj   +1 more source

A novel endo-hydrogenase activity recycles hydrogen produced by nitrogen fixation. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND: Nitrogen (N(2)) fixation also yields hydrogen (H(2)) at 1:1 stoichiometric amounts. In aerobic diazotrophic (able to grow on N(2) as sole N-source) bacteria, orthodox respiratory hupSL-encoded hydrogenase activity, associated with the cell ...
Gordon Ng   +4 more
doaj   +1 more source

Signaling by reactive molecules and antioxidants in legume nodules

open access: yesNew Phytologist, Volume 236, Issue 3, Page 815-832, November 2022., 2022
Summary Legume nodules are symbiotic structures formed as a result of the interaction with rhizobia. Nodules fix atmospheric nitrogen into ammonia that is assimilated by the plant and this process requires strict metabolic regulation and signaling. Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are involved as signal molecules at all
Samuel Minguillón   +3 more
wiley   +1 more source

Soil microbial inoculants for sustainable agriculture: Limitations and opportunities

open access: yesSoil Use and Management, Volume 38, Issue 3, Page 1340-1369, July 2022., 2022
Abstract The burgeoning global market for soil microbial inoculants for use in agriculture is being driven by pressure to increase sustainable crop production by managing pests and diseases without environmental impacts. Microbial inoculants, based predominantly on bacteria and fungi, are applied to soil as alternatives to conventional inorganic ...
Maureen O'Callaghan   +2 more
wiley   +1 more source

OhrR is a central transcriptional regulator of virulence in Dickeya zeae

open access: yesMolecular Plant Pathology, Volume 23, Issue 1, Page 45-59, January 2022., 2022
OhrR is crucial for regulatory of virulence factors production and pathogenicity, and regulates SlyA and Fis to control the expression of downstream virulence genes. Abstract Dickeya zeae is the causal agent of rice foot rot disease. The pathogen is known to rely on a range of virulence factors, including phytotoxin zeamines, extracellular enzymes ...
Mingfa Lv   +9 more
wiley   +1 more source

Phaseolus vulgaris Recognizes Azorhizobium caulinodans Nod Factors with a Variety of Chemical Substituents

open access: yesMolecular Plant-Microbe Interactions, 1999
Phaseolus vulgaris is a promiscuous host plant that can be nodulated by many different rhizobia representing a wide spectrum of Nod factors. In this study, we introduced the Rhizobium tropici CFN299 Nod factor sulfation genes nodHPQ into Azorhizobium ...
T. Laeremans   +6 more
doaj   +1 more source

New Insights into the Taxonomy of Bacteria in the Genomic Era and a Case Study with Rhizobia

open access: yesInternational Journal of Microbiology, Volume 2022, Issue 1, 2022., 2022
Since early studies, the history of prokaryotes taxonomy has dealt with many changes driven by the development of new and more robust technologies. As a result, the number of new taxa descriptions is exponentially increasing, while an increasing number of others has been subject of reclassification, demanding from the taxonomists more effort to ...
Luisa Caroline Ferraz Helene   +3 more
wiley   +1 more source

Carbamoylation of Azorhizobial Nod Factors Is Mediated by NodU

open access: yesMolecular Plant-Microbe Interactions, 1999
Lipochitooligosaccharides (LCOs) synthesized by Azorhizobium caulinodans ORS571 are substituted at the nonreducing-terminal residue with a 6-O-carbamoyl group. LCO biosynthesis in A. caulinodans is dependent on the nodABCSUIJZnoeC operon.
Wim D'Haeze   +3 more
doaj   +1 more source

Deciphering bacterial mechanisms of root colonization

open access: yesEnvironmental Microbiology Reports, Volume 13, Issue 4, Page 428-444, August 2021., 2021
Summary Bacterial colonization of the rhizosphere is critical for the establishment of plant–bacteria interactions that represent a key determinant of plant health and productivity. Plants influence bacterial colonization primarily through modulating the composition of their root exudates and mounting an innate immune response.
Hayley E. Knights   +3 more
wiley   +1 more source

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