Regulation of Flavonoid Biosynthesis by the MYB-bHLH-WDR (MBW) Complex in Plants and Its Specific Features in Cereals.

Flavonoids are a large group of secondary metabolites, which are responsible for pigmentation, signaling, protection from unfavorable environmental conditions, and other important functions, as well as providing numerous benefits for human health. Various stages of flavonoid biosynthesis are subject to complex regulation by three groups of transcription regulators-MYC-like bHLH, R2R3-MYB and WDR which form the MBW regulatory complex. We attempt to cover the main aspects of this intriguing regulatory system in plants, as well as to summarize information on their distinctive features in cereals.

STRUCTURAL AND FUNCTIONAL BONE FEATURES IN CHILDREN RESIDING IN THE RADIOLOGICALLY CONTAMINATED TERRITORIES OF UKRAINE.

Objective: Evaluation of structural features and metabolic/biochemical abnormalities of the bone tissue and relevant regulation patterns in children, residing in the radiologically contaminated territories (RCT).

Materials And Methods: Children (n = 148) aged 7 to 18 years old were involved in the study. Bone mineral density (BMD) is given in 3 grades according to the mean square deviation values, namely Grade I - standard (n = 75),Grade II - reduced (n = 45) and Grade III - very low one (n = 28).

Major chromosome rearrangements in intergeneric wheat × rye hybrids in compatible and incompatible crosses detected by GBS read coverage analysis.

The presence of incompatibility alleles in primary amphidiploids constitutes a reproductive barrier in newly synthesized wheat-rye hybrids. To overcome this barrier, the genome stabilization process includes large-scale chromosome rearrangements. In incompatible crosses resulting in fertile amphidiploids, the elimination of one of the incompatible alleles Eml-A1 or Eml-R1b can occur already in the somatic tissue of the wheat × rye hybrid embryo.

Molecular Analysis of Dihydropteroate Synthase Gene Mutations in Isolates among Bulgarian Patients with Pneumonia.

pneumonia (PCP) is a significant cause of morbidity and mortality in immunocompromised people. The widespread use of trimethoprim-sulfamethoxazole (TMP-SMZ) for the treatment and prophylaxis of opportunistic infections (including PCP) has led to an increased selection of TMP-SMZ-resistant microorganisms. Sulfa/sulfone resistance has been demonstrated to result from specific point mutations in the gene.

Study on the Prevalence of as a Causative Agent of Lung Pathology in People with Different Immune Status.

Background: pneumonia (PCP) commonly affects immunocompromised individuals, whereas in immunocompetent persons, it occurs relatively rarely, and in most cases, the infection is detected as an asymptomatic colonization. The present study aimed to establish the prevalence of infection in human hosts with different immune status (immunocompromised and immunocompetent), using molecular diagnostic methods, and to compare their diagnostic value with that of classical staining methods.

Methods: We used the collected-to-this-moment data from a prospective study on the prevalence of pneumocystosis among the Bulgarian population.