Cytology and GeneticsOct 15, 2024
Cytokinin Oxidase/Dehydrogenase as an Important Target for Increasing Plant Productivity - #cytokinins #biosynthesis #degradation #cytokininoxidase #dehydrogenase #CKO #CKX #CKXgenes #activityregulation #abioticstresses #resistance #productivity - https://link.springer.com/article/10.3103/S0095452724020051
Cytokinin Oxidase/Dehydrogenase as an Important Target for Increasing Plant Productivity - Cytology and Genetics

The review examines the main stages of cytokinin biosynthesis and metabolism with an emphasis on the important role of cytokinin oxidase/dehydrogenase (CKO/CKX) in cytokinin degradation. In this context, arguments are made for the crucial importance of this enzyme in maintaining a balanced level of cytokinins in plants. The role of CKX genes encoding cytokinin oxidase/dehydrogenase in determining plant resistance to abiotic stress factors and their yield was analyzed. The molecular genetic ways of regulating the activity of CKX genes are characterized. The results of research on the regulation of CKO/CKX activity in increasing the resistance to abiotic stress and crop yield are summarized and the biotechnological ways of realizing such opportunities are described. Prospects for finding substances that inhibit CKO/CKX activity to create preparations for agriculture are outlined separately. Prospective chemical inhibitors of CKO/CKX and their effects on cultivated plants are considered.

SpringerLink
CellBioNewsJan 12, 2023

How do #methanotrophs handle the toxic effects of hydrogen sulfide?

#bacteria #enzymes #dehydrogenase #mxaF #xoxF #biotechnology

https://phys.org/news/2023-01-methanotrophs-toxic-effects-hydrogen-sulfide.html

How do methanotrophs handle the toxic effects of hydrogen sulfide?

Methanotrophs—organisms that grow by consuming methane—seem to be perfect for alleviating global warming, since methane accounts for about 30% of this effect. However, drilling sites, where the natural gas is mostly composed of methane, also contains hydrogen sulfide (H2S), which inhibits the growth of methanotrophs. In a new study, researchers have discovered that the methanotroph Methylococcus capsulatus Bath has an enzyme that helps it grow in the presence of small amounts of H2S.

Phys.org